https://github.com/KungFuDonkey updated 
https://github.com/llvm/llvm-project/pull/165156

>From 04af5789d6323d2b4bc128909da1e9450ff2e374 Mon Sep 17 00:00:00 2001
From: KungFuDonkey <[email protected]>
Date: Sun, 26 Oct 2025 15:13:11 +0100
Subject: [PATCH 01/13] Added WaveActiveBitOr

---
 clang/include/clang/Basic/Builtins.td         |  6 +++
 clang/lib/CodeGen/CGHLSLBuiltins.cpp          |  9 +++++
 clang/lib/CodeGen/CGHLSLRuntime.h             |  1 +
 .../lib/Headers/hlsl/hlsl_alias_intrinsics.h  | 30 +++++++++++++++
 clang/lib/Sema/SemaHLSL.cpp                   | 23 +++++++++++
 .../CodeGenHLSL/builtins/WaveActiveBitOr.hlsl | 30 +++++++++++++++
 .../BuiltIns/WaveActiveBitOr-errors.hlsl      | 38 +++++++++++++++++++
 llvm/include/llvm/IR/IntrinsicsDirectX.td     |  1 +
 llvm/include/llvm/IR/IntrinsicsSPIRV.td       |  3 +-
 llvm/lib/Target/DirectX/DXIL.td               | 22 +++++++++++
 llvm/lib/Target/DirectX/DXILShaderFlags.cpp   |  1 +
 .../DirectX/DirectXTargetTransformInfo.cpp    |  1 +
 .../Target/SPIRV/SPIRVInstructionSelector.cpp | 31 +++++++++++++++
 .../CodeGen/DirectX/ShaderFlags/wave-ops.ll   |  7 ++++
 llvm/test/CodeGen/DirectX/WaveActiveBitOr.ll  | 19 ++++++++++
 .../SPIRV/hlsl-intrinsics/WaveActiveBitOr.ll  | 30 +++++++++++++++
 16 files changed, 251 insertions(+), 1 deletion(-)
 create mode 100644 clang/test/CodeGenHLSL/builtins/WaveActiveBitOr.hlsl
 create mode 100644 clang/test/SemaHLSL/BuiltIns/WaveActiveBitOr-errors.hlsl
 create mode 100644 llvm/test/CodeGen/DirectX/WaveActiveBitOr.ll
 create mode 100644 llvm/test/CodeGen/SPIRV/hlsl-intrinsics/WaveActiveBitOr.ll

diff --git a/clang/include/clang/Basic/Builtins.td 
b/clang/include/clang/Basic/Builtins.td
index 792e2e07ec594..3eff68e5b7b8f 100644
--- a/clang/include/clang/Basic/Builtins.td
+++ b/clang/include/clang/Basic/Builtins.td
@@ -4999,6 +4999,12 @@ def HLSLWaveActiveAnyTrue : LangBuiltin<"HLSL_LANG"> {
   let Prototype = "bool(bool)";
 }
 
+def HLSLWaveActiveBitOr : LangBuiltin<"HLSL_LANG"> {
+  let Spellings = ["__builtin_hlsl_wave_active_bit_or"];
+  let Attributes = [NoThrow, Const];
+  let Prototype = "void (...)";
+}
+
 def HLSLWaveActiveCountBits : LangBuiltin<"HLSL_LANG"> {
   let Spellings = ["__builtin_hlsl_wave_active_count_bits"];
   let Attributes = [NoThrow, Const];
diff --git a/clang/lib/CodeGen/CGHLSLBuiltins.cpp 
b/clang/lib/CodeGen/CGHLSLBuiltins.cpp
index 4f2f5a761f197..2668f223aaa8f 100644
--- a/clang/lib/CodeGen/CGHLSLBuiltins.cpp
+++ b/clang/lib/CodeGen/CGHLSLBuiltins.cpp
@@ -690,6 +690,15 @@ Value *CodeGenFunction::EmitHLSLBuiltinExpr(unsigned 
BuiltinID,
     return EmitRuntimeCall(
         Intrinsic::getOrInsertDeclaration(&CGM.getModule(), ID), {Op});
   }
+  case Builtin::BI__builtin_hlsl_wave_active_bit_or: {
+    Value *Op = EmitScalarExpr(E->getArg(0));
+    assert(Op->getType()->hasUnsignedIntegerRepresentation() &&
+           "Intrinsic WaveActiveBitOr operand must have a unsigned integer 
representation");
+
+    Intrinsic::ID ID = CGM.getHLSLRuntime().getWaveActiveBitOrIntrinsic();
+    return EmitRuntimeCall(
+        Intrinsic::getOrInsertDeclaration(&CGM.getModule(), ID), {Op});
+  }
   case Builtin::BI__builtin_hlsl_wave_active_count_bits: {
     Value *OpExpr = EmitScalarExpr(E->getArg(0));
     Intrinsic::ID ID = CGM.getHLSLRuntime().getWaveActiveCountBitsIntrinsic();
diff --git a/clang/lib/CodeGen/CGHLSLRuntime.h 
b/clang/lib/CodeGen/CGHLSLRuntime.h
index 7c6c2850fd4d4..b7fb15f10b6c5 100644
--- a/clang/lib/CodeGen/CGHLSLRuntime.h
+++ b/clang/lib/CodeGen/CGHLSLRuntime.h
@@ -113,6 +113,7 @@ class CGHLSLRuntime {
   GENERATE_HLSL_INTRINSIC_FUNCTION(Dot4AddU8Packed, dot4add_u8packed)
   GENERATE_HLSL_INTRINSIC_FUNCTION(WaveActiveAllTrue, wave_all)
   GENERATE_HLSL_INTRINSIC_FUNCTION(WaveActiveAnyTrue, wave_any)
+  GENERATE_HLSL_INTRINSIC_FUNCTION(WaveActiveBitOr, wave_reduce_or)
   GENERATE_HLSL_INTRINSIC_FUNCTION(WaveActiveCountBits, wave_active_countbits)
   GENERATE_HLSL_INTRINSIC_FUNCTION(WaveIsFirstLane, wave_is_first_lane)
   GENERATE_HLSL_INTRINSIC_FUNCTION(WaveGetLaneCount, wave_get_lane_count)
diff --git a/clang/lib/Headers/hlsl/hlsl_alias_intrinsics.h 
b/clang/lib/Headers/hlsl/hlsl_alias_intrinsics.h
index d973371312701..2075f557a9a0a 100644
--- a/clang/lib/Headers/hlsl/hlsl_alias_intrinsics.h
+++ b/clang/lib/Headers/hlsl/hlsl_alias_intrinsics.h
@@ -2498,6 +2498,36 @@ __attribute__((convergent)) double3 
WaveReadLaneAt(double3, uint32_t);
 _HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_read_lane_at)
 __attribute__((convergent)) double4 WaveReadLaneAt(double4, uint32_t);
 
+//===----------------------------------------------------------------------===//
+// WaveActiveBitOr builtins
+//===----------------------------------------------------------------------===//
+
+_HLSL_AVAILABILITY(shadermodel, 6.0)
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_bit_or)
+__attribute__((convergent)) uint WaveActiveBitOr(uint);
+_HLSL_AVAILABILITY(shadermodel, 6.0)
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_bit_or)
+__attribute__((convergent)) uint2 WaveActiveBitOr(uint2);
+_HLSL_AVAILABILITY(shadermodel, 6.0)
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_bit_or)
+__attribute__((convergent)) uint3 WaveActiveBitOr(uint3);
+_HLSL_AVAILABILITY(shadermodel, 6.0)
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_bit_or)
+__attribute__((convergent)) uint4 WaveActiveBitOr(uint4);
+
+_HLSL_AVAILABILITY(shadermodel, 6.0)
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_bit_or)
+__attribute__((convergent)) uint64_t WaveActiveBitOr(uint64_t);
+_HLSL_AVAILABILITY(shadermodel, 6.0)
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_bit_or)
+__attribute__((convergent)) uint64_t2 WaveActiveBitOr(uint64_t2);
+_HLSL_AVAILABILITY(shadermodel, 6.0)
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_bit_or)
+__attribute__((convergent)) uint64_t3 WaveActiveBitOr(uint64_t3);
+_HLSL_AVAILABILITY(shadermodel, 6.0)
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_bit_or)
+__attribute__((convergent)) uint64_t4 WaveActiveBitOr(uint64_t4);
+
 
//===----------------------------------------------------------------------===//
 // WaveActiveMax builtins
 
//===----------------------------------------------------------------------===//
diff --git a/clang/lib/Sema/SemaHLSL.cpp b/clang/lib/Sema/SemaHLSL.cpp
index f34706677b59f..5969173b15fab 100644
--- a/clang/lib/Sema/SemaHLSL.cpp
+++ b/clang/lib/Sema/SemaHLSL.cpp
@@ -3211,6 +3211,29 @@ bool SemaHLSL::CheckBuiltinFunctionCall(unsigned 
BuiltinID, CallExpr *TheCall) {
     TheCall->setType(ArgTyExpr);
     break;
   }
+  case Builtin::BI__builtin_hlsl_wave_active_bit_or: {
+    if (SemaRef.checkArgCount(TheCall, 1))
+      return true;
+
+    // Ensure input expr type is a scalar/vector and the same as the return 
type
+    if (CheckAnyScalarOrVector(&SemaRef, TheCall, 0))
+      return true;
+    if (CheckWaveActive(&SemaRef, TheCall))
+      return true;
+
+    // Ensure expression parameter type can be interpreted as a uint
+    ExprResult Expr = TheCall->getArg(0);
+    QualType ArgTyExpr = Expr.get()->getType();
+    if (!ArgTyExpr->isIntegerType()) {
+      SemaRef.Diag(TheCall->getArg(0)->getBeginLoc(),
+                   diag::err_typecheck_convert_incompatible)
+          << ArgTyExpr << SemaRef.Context.UnsignedIntTy << 1 << 0 << 0;
+      return true;
+    }
+
+    TheCall->setType(ArgTyExpr);
+    break;
+  }
   // Note these are llvm builtins that we want to catch invalid intrinsic
   // generation. Normal handling of these builitns will occur elsewhere.
   case Builtin::BI__builtin_elementwise_bitreverse: {
diff --git a/clang/test/CodeGenHLSL/builtins/WaveActiveBitOr.hlsl 
b/clang/test/CodeGenHLSL/builtins/WaveActiveBitOr.hlsl
new file mode 100644
index 0000000000000..5e030208679b9
--- /dev/null
+++ b/clang/test/CodeGenHLSL/builtins/WaveActiveBitOr.hlsl
@@ -0,0 +1,30 @@
+// RUN: %clang_cc1 -std=hlsl2021 -finclude-default-header -triple \
+// RUN:   dxil-pc-shadermodel6.3-compute %s -emit-llvm -disable-llvm-passes -o 
- | \
+// RUN:   FileCheck %s --check-prefixes=CHECK,CHECK-DXIL
+// RUN: %clang_cc1 -std=hlsl2021 -finclude-default-header -triple \
+// RUN:   spirv-pc-vulkan-compute %s -emit-llvm -disable-llvm-passes -o - | \
+// RUN:   FileCheck %s --check-prefixes=CHECK,CHECK-SPIRV
+
+// Test basic lowering to runtime function call.
+
+// CHECK-LABEL: test_uint
+uint test_uint(uint expr) {
+  // CHECK-SPIRV:  %[[RET:.*]] = call spir_func [[TY:.*]] 
@llvm.spv.wave.reduce.or.i32([[TY]] %[[#]])
+  // CHECK-DXIL:  %[[RET:.*]] = call [[TY:.*]] 
@llvm.dx.wave.reduce.or.i32([[TY]] %[[#]])
+  // CHECK:  ret [[TY]] %[[RET]]
+  return WaveActiveBitOr(expr);
+}
+
+// CHECK-DXIL: declare [[TY]] @llvm.dx.wave.reduce.or.i32([[TY]]) #[[#attr:]]
+// CHECK-SPIRV: declare [[TY]] @llvm.spv.wave.reduce.or.i32([[TY]]) #[[#attr:]]
+
+// CHECK-LABEL: test_uint64_t
+uint64_t test_uint64_t(uint64_t expr) {
+  // CHECK-SPIRV:  %[[RET:.*]] = call spir_func [[TY:.*]] 
@llvm.spv.wave.reduce.or.i64([[TY]] %[[#]])
+  // CHECK-DXIL:  %[[RET:.*]] = call [[TY:.*]] 
@llvm.dx.wave.reduce.or.i64([[TY]] %[[#]])
+  // CHECK:  ret [[TY]] %[[RET]]
+  return WaveActiveBitOr(expr);
+}
+
+// CHECK-DXIL: declare [[TY]] @llvm.dx.wave.reduce.or.i64([[TY]]) #[[#attr:]]
+// CHECK-SPIRV: declare [[TY]] @llvm.spv.wave.reduce.or.i64([[TY]]) #[[#attr:]]
diff --git a/clang/test/SemaHLSL/BuiltIns/WaveActiveBitOr-errors.hlsl 
b/clang/test/SemaHLSL/BuiltIns/WaveActiveBitOr-errors.hlsl
new file mode 100644
index 0000000000000..8eb62c7d96b4e
--- /dev/null
+++ b/clang/test/SemaHLSL/BuiltIns/WaveActiveBitOr-errors.hlsl
@@ -0,0 +1,38 @@
+// RUN: %clang_cc1 -finclude-default-header -triple 
dxil-pc-shadermodel6.6-library %s -emit-llvm-only -disable-llvm-passes -verify
+
+uint test_too_few_arg() {
+  return __builtin_hlsl_wave_active_bit_or();
+  // expected-error@-1 {{too few arguments to function call, expected 1, have 
0}}
+}
+
+uint2 test_too_many_arg(uint2 p0) {
+  return __builtin_hlsl_wave_active_bit_or(p0, p0);
+  // expected-error@-1 {{too many arguments to function call, expected 1, have 
2}}
+}
+
+bool test_expr_bool_type_check(bool p0) {
+  return __builtin_hlsl_wave_active_bit_or(p0);
+  // expected-error@-1 {{invalid operand of type 'bool'}}
+}
+
+float test_expr_float_type_check(float p0) {
+  return __builtin_hlsl_wave_active_bit_or(p0);
+  // expected-error@-1 {{invalid operand of type 'float'}}
+}
+
+bool2 test_expr_bool_vec_type_check(bool2 p0) {
+  return __builtin_hlsl_wave_active_bit_or(p0);
+  // expected-error@-1 {{invalid operand of type 'bool2' (aka 'vector<bool, 
2>')}}
+}
+
+float2 test_expr_float_type_check(float2 p0) {
+  return __builtin_hlsl_wave_active_bit_or(p0);
+  // expected-error@-1 {{invalid operand of type 'float2' (aka 'vector<float, 
2>')}}
+}
+
+struct S { float f; };
+
+S test_expr_struct_type_check(S p0) {
+  return __builtin_hlsl_wave_active_bit_or(p0);
+  // expected-error@-1 {{invalid operand of type 'S' where a scalar or vector 
is required}}
+}
diff --git a/llvm/include/llvm/IR/IntrinsicsDirectX.td 
b/llvm/include/llvm/IR/IntrinsicsDirectX.td
index 3b7077c52db21..22f5644c1103e 100644
--- a/llvm/include/llvm/IR/IntrinsicsDirectX.td
+++ b/llvm/include/llvm/IR/IntrinsicsDirectX.td
@@ -151,6 +151,7 @@ def int_dx_wave_active_countbits : 
DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i1
 def int_dx_wave_all : DefaultAttrsIntrinsic<[llvm_i1_ty], [llvm_i1_ty], 
[IntrConvergent, IntrNoMem]>;
 def int_dx_wave_any : DefaultAttrsIntrinsic<[llvm_i1_ty], [llvm_i1_ty], 
[IntrConvergent, IntrNoMem]>;
 def int_dx_wave_getlaneindex : DefaultAttrsIntrinsic<[llvm_i32_ty], [], 
[IntrConvergent, IntrNoMem]>;
+def int_dx_wave_reduce_or : DefaultAttrsIntrinsic<[llvm_anyint_ty], 
[llvm_anyint_ty], [IntrConvergent, IntrNoMem]>;
 def int_dx_wave_reduce_max : DefaultAttrsIntrinsic<[llvm_any_ty], 
[LLVMMatchType<0>], [IntrConvergent, IntrNoMem]>;
 def int_dx_wave_reduce_umax : DefaultAttrsIntrinsic<[llvm_anyint_ty], 
[LLVMMatchType<0>], [IntrConvergent, IntrNoMem]>;
 def int_dx_wave_reduce_sum : DefaultAttrsIntrinsic<[llvm_any_ty], 
[LLVMMatchType<0>], [IntrConvergent, IntrNoMem]>;
diff --git a/llvm/include/llvm/IR/IntrinsicsSPIRV.td 
b/llvm/include/llvm/IR/IntrinsicsSPIRV.td
index 49a182be98acd..8747c46c97293 100644
--- a/llvm/include/llvm/IR/IntrinsicsSPIRV.td
+++ b/llvm/include/llvm/IR/IntrinsicsSPIRV.td
@@ -120,6 +120,7 @@ def int_spv_rsqrt : 
DefaultAttrsIntrinsic<[LLVMMatchType<0>], [llvm_anyfloat_ty]
   def int_spv_wave_active_countbits : DefaultAttrsIntrinsic<[llvm_i32_ty], 
[llvm_i1_ty], [IntrConvergent, IntrNoMem]>;
   def int_spv_wave_all : DefaultAttrsIntrinsic<[llvm_i1_ty], [llvm_i1_ty], 
[IntrConvergent, IntrNoMem]>;
   def int_spv_wave_any : DefaultAttrsIntrinsic<[llvm_i1_ty], [llvm_i1_ty], 
[IntrConvergent, IntrNoMem]>;
+  def int_spv_wave_reduce_or : DefaultAttrsIntrinsic<[llvm_anyint_ty], 
[llvm_anyint_ty], [IntrConvergent, IntrNoMem]>;
   def int_spv_wave_reduce_umax : DefaultAttrsIntrinsic<[llvm_any_ty], 
[LLVMMatchType<0>], [IntrConvergent, IntrNoMem]>;
   def int_spv_wave_reduce_max : DefaultAttrsIntrinsic<[llvm_any_ty], 
[LLVMMatchType<0>], [IntrConvergent, IntrNoMem]>;
   def int_spv_wave_reduce_sum : DefaultAttrsIntrinsic<[llvm_any_ty], 
[LLVMMatchType<0>], [IntrConvergent, IntrNoMem]>;
@@ -136,7 +137,7 @@ def int_spv_rsqrt : 
DefaultAttrsIntrinsic<[LLVMMatchType<0>], [llvm_anyfloat_ty]
   def int_spv_sclamp : DefaultAttrsIntrinsic<[llvm_anyint_ty], 
[LLVMMatchType<0>, LLVMMatchType<0>, LLVMMatchType<0>], [IntrNoMem]>;
   def int_spv_nclamp : DefaultAttrsIntrinsic<[llvm_anyfloat_ty], 
[LLVMMatchType<0>, LLVMMatchType<0>, LLVMMatchType<0>], [IntrNoMem]>;
 
-  // Create resource handle given the binding information. Returns a 
+  // Create resource handle given the binding information. Returns a
   // type appropriate for the kind of resource given the set id, binding id,
   // array size of the binding, as well as an index and an indicator
   // whether that index may be non-uniform.
diff --git a/llvm/lib/Target/DirectX/DXIL.td b/llvm/lib/Target/DirectX/DXIL.td
index 44c48305f2832..537eba6afd0a2 100644
--- a/llvm/lib/Target/DirectX/DXIL.td
+++ b/llvm/lib/Target/DirectX/DXIL.td
@@ -316,6 +316,10 @@ defvar WaveOpKind_Product = 1;
 defvar WaveOpKind_Min = 2;
 defvar WaveOpKind_Max = 3;
 
+defvar WaveBitOpKind_And = 0;
+defvar WaveBitOpKind_Or = 1;
+defvar WaveBitOpKind_Xor = 2;
+
 defvar SignedOpKind_Signed = 0;
 defvar SignedOpKind_Unsigned = 1;
 
@@ -1069,6 +1073,24 @@ def WaveActiveOp : DXILOp<119, waveActiveOp> {
   let attributes = [Attributes<DXIL1_0, []>];
 }
 
+def WaveActiveBit : DXILOp<120, waveActiveBit> {
+  let Doc = "returns the result of the operation across waves";
+  let intrinsics = [
+    IntrinSelect<int_dx_wave_reduce_or,
+                 [
+                   IntrinArgIndex<0>, IntrinArgI8<WaveBitOpKind_Or>,
+                 ]>,
+  ];
+
+  let arguments = [OverloadTy, Int8Ty];
+  let result = OverloadTy;
+  let overloads = [
+    Overloads<DXIL1_0, [Int32Ty, Int64Ty]>
+  ];
+  let stages = [Stages<DXIL1_0, [all_stages]>];
+  let attributes = [Attributes<DXIL1_0, []>];
+}
+
 def WaveAllBitCount : DXILOp<135, waveAllOp> {
   let Doc = "returns the count of bits set to 1 across the wave";
   let intrinsics = [IntrinSelect<int_dx_wave_active_countbits>];
diff --git a/llvm/lib/Target/DirectX/DXILShaderFlags.cpp 
b/llvm/lib/Target/DirectX/DXILShaderFlags.cpp
index e7e7f2ce66ae8..7c47e107f51b3 100644
--- a/llvm/lib/Target/DirectX/DXILShaderFlags.cpp
+++ b/llvm/lib/Target/DirectX/DXILShaderFlags.cpp
@@ -90,6 +90,7 @@ static bool checkWaveOps(Intrinsic::ID IID) {
   case Intrinsic::dx_wave_readlane:
   case Intrinsic::dx_wave_active_countbits:
   // Wave Active Op Variants
+  case Intrinsic::dx_wave_reduce_or:
   case Intrinsic::dx_wave_reduce_sum:
   case Intrinsic::dx_wave_reduce_usum:
   case Intrinsic::dx_wave_reduce_max:
diff --git a/llvm/lib/Target/DirectX/DirectXTargetTransformInfo.cpp 
b/llvm/lib/Target/DirectX/DirectXTargetTransformInfo.cpp
index 68fd3e0bc74c7..50b7e9fd957f5 100644
--- a/llvm/lib/Target/DirectX/DirectXTargetTransformInfo.cpp
+++ b/llvm/lib/Target/DirectX/DirectXTargetTransformInfo.cpp
@@ -54,6 +54,7 @@ bool DirectXTTIImpl::isTargetIntrinsicTriviallyScalarizable(
   case Intrinsic::dx_saturate:
   case Intrinsic::dx_splitdouble:
   case Intrinsic::dx_wave_readlane:
+  case Intrinsic::dx_wave_reduce_or:
   case Intrinsic::dx_wave_reduce_max:
   case Intrinsic::dx_wave_reduce_sum:
   case Intrinsic::dx_wave_reduce_umax:
diff --git a/llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp 
b/llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp
index a0cff4d82b500..3429e98de0548 100644
--- a/llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp
+++ b/llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp
@@ -219,6 +219,9 @@ class SPIRVInstructionSelector : public InstructionSelector 
{
   bool selectDot4AddPackedExpansion(Register ResVReg, const SPIRVType *ResType,
                                     MachineInstr &I) const;
 
+  bool selectWaveReduceOr(Register ResVReg, const SPIRVType *ResType,
+                          MachineInstr &I) const;
+
   bool selectWaveReduceMax(Register ResVReg, const SPIRVType *ResType,
                            MachineInstr &I, bool IsUnsigned) const;
 
@@ -2427,6 +2430,32 @@ bool SPIRVInstructionSelector::selectWaveActiveCountBits(
   return Result;
 }
 
+bool SPIRVInstructionSelector::selectWaveReduceOr(
+    Register ResVReg, const SPIRVType *ResType, MachineInstr &I) const {
+
+  assert(I.getNumOperands() == 3);
+  assert(I.getOperand(2).isReg());
+  MachineBasicBlock &BB = *I.getParent();
+  Register InputRegister = I.getOperand(2).getReg();
+  SPIRVType *InputType = GR.getSPIRVTypeForVReg(InputRegister);
+
+  if (!InputType)
+    report_fatal_error("Input Type could not be determined.");
+
+  SPIRVType *IntTy = GR.getOrCreateSPIRVIntegerType(32, I, TII);
+
+  auto Opcode = SPIRV::OpGroupNonUniformBitwiseOr;
+
+  return BuildMI(BB, I, I.getDebugLoc(), TII.get(Opcode))
+      .addDef(ResVReg)
+      .addUse(GR.getSPIRVTypeID(ResType))
+      .addUse(GR.getOrCreateConstInt(SPIRV::Scope::Subgroup, I, IntTy, TII,
+                                     !STI.isShader()))
+      .addImm(SPIRV::GroupOperation::Reduce)
+      .addUse(I.getOperand(2).getReg())
+      .constrainAllUses(TII, TRI, RBI);
+}
+
 bool SPIRVInstructionSelector::selectWaveReduceMax(Register ResVReg,
                                                    const SPIRVType *ResType,
                                                    MachineInstr &I,
@@ -3427,6 +3456,8 @@ bool SPIRVInstructionSelector::selectIntrinsic(Register 
ResVReg,
     return selectWaveOpInst(ResVReg, ResType, I, SPIRV::OpGroupNonUniformAny);
   case Intrinsic::spv_wave_is_first_lane:
     return selectWaveOpInst(ResVReg, ResType, I, 
SPIRV::OpGroupNonUniformElect);
+  case Intrinsic::spv_wave_reduce_or:
+    return selectWaveReduceOr(ResVReg, ResType, I);
   case Intrinsic::spv_wave_reduce_umax:
     return selectWaveReduceMax(ResVReg, ResType, I, /*IsUnsigned*/ true);
   case Intrinsic::spv_wave_reduce_max:
diff --git a/llvm/test/CodeGen/DirectX/ShaderFlags/wave-ops.ll 
b/llvm/test/CodeGen/DirectX/ShaderFlags/wave-ops.ll
index 7a876f67615cd..140152aa80c07 100644
--- a/llvm/test/CodeGen/DirectX/ShaderFlags/wave-ops.ll
+++ b/llvm/test/CodeGen/DirectX/ShaderFlags/wave-ops.ll
@@ -41,6 +41,13 @@ entry:
   ret i1 %ret
 }
 
+define noundef i32 @wave_bit_or(i32 %x) {
+entry:
+  ; CHECK: Function wave_bit_or : [[WAVE_FLAG]]
+  %ret = call i32 @llvm.dx.wave.reduce.or(i32 %x)
+  ret i32 %ret
+}
+
 define noundef i1 @wave_readlane(i1 %x, i32 %idx) {
 entry:
   ; CHECK: Function wave_readlane : [[WAVE_FLAG]]
diff --git a/llvm/test/CodeGen/DirectX/WaveActiveBitOr.ll 
b/llvm/test/CodeGen/DirectX/WaveActiveBitOr.ll
new file mode 100644
index 0000000000000..386a263ec245d
--- /dev/null
+++ b/llvm/test/CodeGen/DirectX/WaveActiveBitOr.ll
@@ -0,0 +1,19 @@
+; RUN: opt -S -dxil-op-lower -mtriple=dxil-pc-shadermodel6.3-compute %s | 
FileCheck %s
+
+define noundef i32 @wave_bitor_simple(i32 noundef %p1) {
+entry:
+; CHECK: call i32 @dx.op.waveActiveBit.i32(i32 120, i32 %p1, i8 1){{$}}
+  %ret = call i32 @llvm.dx.wave.reduce.or.i32(i32 %p1)
+  ret i32 %ret
+}
+
+declare i32 @llvm.dx.wave.reduce.or.i32(i32)
+
+define noundef i64 @wave_bitor_simple64(i64 noundef %p1) {
+entry:
+; CHECK: call i64 @dx.op.waveActiveBit.i64(i32 120, i64 %p1, i8 1){{$}}
+  %ret = call i64 @llvm.dx.wave.reduce.or.i64(i64 %p1)
+  ret i64 %ret
+}
+
+declare i64 @llvm.dx.wave.reduce.or.i64(i64)
diff --git a/llvm/test/CodeGen/SPIRV/hlsl-intrinsics/WaveActiveBitOr.ll 
b/llvm/test/CodeGen/SPIRV/hlsl-intrinsics/WaveActiveBitOr.ll
new file mode 100644
index 0000000000000..2df3a335bee69
--- /dev/null
+++ b/llvm/test/CodeGen/SPIRV/hlsl-intrinsics/WaveActiveBitOr.ll
@@ -0,0 +1,30 @@
+; RUN: llc -verify-machineinstrs -O0 -mtriple=spirv-vulkan-unknown %s -o - | 
FileCheck %s
+; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv-vulkan-unknown %s -o - 
-filetype=obj | spirv-val %}
+
+; Test lowering to spir-v backend for various types and scalar/vector
+
+; CHECK-DAG:   %[[#uint:]] = OpTypeInt 32 0
+; CHECK-DAG:   %[[#uint64:]] = OpTypeInt 64 0
+; CHECK-DAG:   %[[#scope:]] = OpConstant %[[#uint]] 3
+
+; CHECK-LABEL: Begin function test_uint
+; CHECK:   %[[#iexpr:]] = OpFunctionParameter %[[#uint]]
+define i32 @test_uint(i32 %iexpr) {
+entry:
+; CHECK:   %[[#iret:]] = OpGroupNonUniformBitwiseOr %[[#uint]] %[[#scope]] 
Reduce %[[#iexpr]]
+  %0 = call i32 @llvm.spv.wave.reduce.or.i32(i32 %iexpr)
+  ret i32 %0
+}
+
+declare i32 @llvm.spv.wave.reduce.or.i32(i32)
+
+; CHECK-LABEL: Begin function test_uint64
+; CHECK:   %[[#iexpr64:]] = OpFunctionParameter %[[#uint64]]
+define i64 @test_uint64(i64 %iexpr64) {
+entry:
+; CHECK:   %[[#iret:]] = OpGroupNonUniformBitwiseOr %[[#uint64]] %[[#scope]] 
Reduce %[[#iexpr64]]
+  %0 = call i64 @llvm.spv.wave.reduce.or.i64(i64 %iexpr64)
+  ret i64 %0
+}
+
+declare i64 @llvm.spv.wave.reduce.or.i64(i64)
\ No newline at end of file

>From 744fd508e122b8e93b60bddd2ae0292370eba756 Mon Sep 17 00:00:00 2001
From: KungFuDonkey <[email protected]>
Date: Wed, 29 Oct 2025 22:42:07 +0100
Subject: [PATCH 02/13] Updated according to review

---
 clang/lib/Headers/hlsl/hlsl_alias_intrinsics.h       |  3 +++
 clang/lib/Sema/SemaHLSL.cpp                          | 12 ++++++------
 llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp   |  3 +--
 .../CodeGen/SPIRV/hlsl-intrinsics/WaveActiveBitOr.ll |  4 ++--
 4 files changed, 12 insertions(+), 10 deletions(-)

diff --git a/clang/lib/Headers/hlsl/hlsl_alias_intrinsics.h 
b/clang/lib/Headers/hlsl/hlsl_alias_intrinsics.h
index 2075f557a9a0a..2f26b36c963b8 100644
--- a/clang/lib/Headers/hlsl/hlsl_alias_intrinsics.h
+++ b/clang/lib/Headers/hlsl/hlsl_alias_intrinsics.h
@@ -2502,6 +2502,9 @@ __attribute__((convergent)) double4 
WaveReadLaneAt(double4, uint32_t);
 // WaveActiveBitOr builtins
 
//===----------------------------------------------------------------------===//
 
+// \brief Returns the value of the expression for the given lane index within
+// the specified wave.
+
 _HLSL_AVAILABILITY(shadermodel, 6.0)
 _HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_bit_or)
 __attribute__((convergent)) uint WaveActiveBitOr(uint);
diff --git a/clang/lib/Sema/SemaHLSL.cpp b/clang/lib/Sema/SemaHLSL.cpp
index 5969173b15fab..7c6fa14ade639 100644
--- a/clang/lib/Sema/SemaHLSL.cpp
+++ b/clang/lib/Sema/SemaHLSL.cpp
@@ -3215,22 +3215,22 @@ bool SemaHLSL::CheckBuiltinFunctionCall(unsigned 
BuiltinID, CallExpr *TheCall) {
     if (SemaRef.checkArgCount(TheCall, 1))
       return true;
 
-    // Ensure input expr type is a scalar/vector and the same as the return 
type
-    if (CheckAnyScalarOrVector(&SemaRef, TheCall, 0))
-      return true;
     if (CheckWaveActive(&SemaRef, TheCall))
       return true;
 
-    // Ensure expression parameter type can be interpreted as a uint
+    // Ensure the expr type is interpretable as a uint or vector<uint>
     ExprResult Expr = TheCall->getArg(0);
     QualType ArgTyExpr = Expr.get()->getType();
-    if (!ArgTyExpr->isIntegerType()) {
+    auto *VTy = ArgTyExpr->getAs<VectorType>();
+    if (!(ArgTyExpr->isIntegerType() ||
+         (VTy && VTy->getElementType()->isIntegerType()))) {
       SemaRef.Diag(TheCall->getArg(0)->getBeginLoc(),
-                   diag::err_typecheck_convert_incompatible)
+                   diag::err_builtin_invalid_arg_type)
           << ArgTyExpr << SemaRef.Context.UnsignedIntTy << 1 << 0 << 0;
       return true;
     }
 
+    // Ensure input expr type is the same as the return type
     TheCall->setType(ArgTyExpr);
     break;
   }
diff --git a/llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp 
b/llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp
index 3429e98de0548..088d684921d70 100644
--- a/llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp
+++ b/llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp
@@ -2015,8 +2015,7 @@ bool SPIRVInstructionSelector::selectAnyOrAll(Register 
ResVReg,
   Register InputRegister = I.getOperand(2).getReg();
   SPIRVType *InputType = GR.getSPIRVTypeForVReg(InputRegister);
 
-  if (!InputType)
-    report_fatal_error("Input Type could not be determined.");
+  assert(InputType && "VReg has no type assigned");
 
   bool IsBoolTy = GR.isScalarOrVectorOfType(InputRegister, SPIRV::OpTypeBool);
   bool IsVectorTy = InputType->getOpcode() == SPIRV::OpTypeVector;
diff --git a/llvm/test/CodeGen/SPIRV/hlsl-intrinsics/WaveActiveBitOr.ll 
b/llvm/test/CodeGen/SPIRV/hlsl-intrinsics/WaveActiveBitOr.ll
index 2df3a335bee69..76212dfe86a39 100644
--- a/llvm/test/CodeGen/SPIRV/hlsl-intrinsics/WaveActiveBitOr.ll
+++ b/llvm/test/CodeGen/SPIRV/hlsl-intrinsics/WaveActiveBitOr.ll
@@ -1,5 +1,5 @@
 ; RUN: llc -verify-machineinstrs -O0 -mtriple=spirv-vulkan-unknown %s -o - | 
FileCheck %s
-; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv-vulkan-unknown %s -o - 
-filetype=obj | spirv-val %}
+; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv-unknown-vulkan %s -o - 
-filetype=obj | spirv-val --target-env spv1.4 %}
 
 ; Test lowering to spir-v backend for various types and scalar/vector
 
@@ -27,4 +27,4 @@ entry:
   ret i64 %0
 }
 
-declare i64 @llvm.spv.wave.reduce.or.i64(i64)
\ No newline at end of file
+declare i64 @llvm.spv.wave.reduce.or.i64(i64)

>From 09e85ea4554f7c82118871782154a71b391989a3 Mon Sep 17 00:00:00 2001
From: KungFuDonkey <[email protected]>
Date: Sun, 2 Nov 2025 12:27:51 +0100
Subject: [PATCH 03/13] DX and SPV checks

---
 .../CodeGenHLSL/builtins/WaveActiveBitOr.hlsl | 21 ++++++++++---------
 1 file changed, 11 insertions(+), 10 deletions(-)

diff --git a/clang/test/CodeGenHLSL/builtins/WaveActiveBitOr.hlsl 
b/clang/test/CodeGenHLSL/builtins/WaveActiveBitOr.hlsl
index 5e030208679b9..cfb3d2514cdde 100644
--- a/clang/test/CodeGenHLSL/builtins/WaveActiveBitOr.hlsl
+++ b/clang/test/CodeGenHLSL/builtins/WaveActiveBitOr.hlsl
@@ -1,30 +1,31 @@
 // RUN: %clang_cc1 -std=hlsl2021 -finclude-default-header -triple \
 // RUN:   dxil-pc-shadermodel6.3-compute %s -emit-llvm -disable-llvm-passes -o 
- | \
-// RUN:   FileCheck %s --check-prefixes=CHECK,CHECK-DXIL
+// RUN:   FileCheck %s --check-prefixes=CHECK,DXCHECK
+
 // RUN: %clang_cc1 -std=hlsl2021 -finclude-default-header -triple \
 // RUN:   spirv-pc-vulkan-compute %s -emit-llvm -disable-llvm-passes -o - | \
-// RUN:   FileCheck %s --check-prefixes=CHECK,CHECK-SPIRV
+// RUN:   FileCheck %s --check-prefixes=CHECK,SPVCHECK
+
+// DXCHECK: define hidden [[FN_TYPE:]]noundef i1 @
+// SPVCHECK: define hidden [[FN_TYPE:spir_func ]]noundef i1 @
 
 // Test basic lowering to runtime function call.
 
 // CHECK-LABEL: test_uint
 uint test_uint(uint expr) {
-  // CHECK-SPIRV:  %[[RET:.*]] = call spir_func [[TY:.*]] 
@llvm.spv.wave.reduce.or.i32([[TY]] %[[#]])
-  // CHECK-DXIL:  %[[RET:.*]] = call [[TY:.*]] 
@llvm.dx.wave.reduce.or.i32([[TY]] %[[#]])
+  // DXCHECK:  %[[RET:.*]] = call i1 [[TY:.*]] 
@llvm.[[ICF:dx]].wave.reduce.or.i32([[TY]] %[[#]])
+  // SPVCHECK:  %[[RET:.*]] = call i1 [[TY:.*]] 
@llvm.[[ICF:spv]].wave.reduce.or.i32([[TY]] %[[#]])
   // CHECK:  ret [[TY]] %[[RET]]
   return WaveActiveBitOr(expr);
 }
 
-// CHECK-DXIL: declare [[TY]] @llvm.dx.wave.reduce.or.i32([[TY]]) #[[#attr:]]
-// CHECK-SPIRV: declare [[TY]] @llvm.spv.wave.reduce.or.i32([[TY]]) #[[#attr:]]
+// CHECK: declare [[TY]] @llvm.[[ICF]].wave.reduce.or.i32([[TY]]) #[[#attr:]]
 
 // CHECK-LABEL: test_uint64_t
 uint64_t test_uint64_t(uint64_t expr) {
-  // CHECK-SPIRV:  %[[RET:.*]] = call spir_func [[TY:.*]] 
@llvm.spv.wave.reduce.or.i64([[TY]] %[[#]])
-  // CHECK-DXIL:  %[[RET:.*]] = call [[TY:.*]] 
@llvm.dx.wave.reduce.or.i64([[TY]] %[[#]])
+  // CHECK:  %[[RET:.*]] = call i1 [[TY:.*]] 
@llvm.[[ICF]].wave.reduce.or.i64([[TY]] %[[#]])
   // CHECK:  ret [[TY]] %[[RET]]
   return WaveActiveBitOr(expr);
 }
 
-// CHECK-DXIL: declare [[TY]] @llvm.dx.wave.reduce.or.i64([[TY]]) #[[#attr:]]
-// CHECK-SPIRV: declare [[TY]] @llvm.spv.wave.reduce.or.i64([[TY]]) #[[#attr:]]
+// CHECK: declare [[TY]] @llvm.[[ICF]].wave.reduce.or.i64([[TY]]) #[[#attr:]]

>From a8c179af9d0124c08cfb18321e639422338cd446 Mon Sep 17 00:00:00 2001
From: KungFuDonkey <[email protected]>
Date: Sun, 2 Nov 2025 13:00:48 +0100
Subject: [PATCH 04/13] Scalarized check

---
 llvm/test/CodeGen/DirectX/WaveActiveBitOr.ll | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/llvm/test/CodeGen/DirectX/WaveActiveBitOr.ll 
b/llvm/test/CodeGen/DirectX/WaveActiveBitOr.ll
index 386a263ec245d..0ee7739cf47d0 100644
--- a/llvm/test/CodeGen/DirectX/WaveActiveBitOr.ll
+++ b/llvm/test/CodeGen/DirectX/WaveActiveBitOr.ll
@@ -1,4 +1,4 @@
-; RUN: opt -S -dxil-op-lower -mtriple=dxil-pc-shadermodel6.3-compute %s | 
FileCheck %s
+; RUN: opt -S -scalarizer -dxil-op-lower 
-mtriple=dxil-pc-shadermodel6.3-compute %s | FileCheck %s
 
 define noundef i32 @wave_bitor_simple(i32 noundef %p1) {
 entry:

>From 1fe4ecf796f89f0e51eb750b445a85e332bf750a Mon Sep 17 00:00:00 2001
From: KungFuDonkey <[email protected]>
Date: Sat, 15 Nov 2025 14:09:12 +0100
Subject: [PATCH 05/13] Fix uint64_t and builtin tests

---
 clang/lib/CodeGen/CGHLSLBuiltins.cpp                   |  2 +-
 clang/test/CodeGenHLSL/builtins/WaveActiveBitOr.hlsl   |  9 ---------
 .../test/SemaHLSL/BuiltIns/WaveActiveBitOr-errors.hlsl | 10 +++++-----
 3 files changed, 6 insertions(+), 15 deletions(-)

diff --git a/clang/lib/CodeGen/CGHLSLBuiltins.cpp 
b/clang/lib/CodeGen/CGHLSLBuiltins.cpp
index 3660214b31552..0843e128d74f9 100644
--- a/clang/lib/CodeGen/CGHLSLBuiltins.cpp
+++ b/clang/lib/CodeGen/CGHLSLBuiltins.cpp
@@ -788,7 +788,7 @@ Value *CodeGenFunction::EmitHLSLBuiltinExpr(unsigned 
BuiltinID,
   }
   case Builtin::BI__builtin_hlsl_wave_active_bit_or: {
     Value *Op = EmitScalarExpr(E->getArg(0));
-    assert(Op->getType()->hasUnsignedIntegerRepresentation() &&
+    assert(E->getArg(0)->getType()->hasUnsignedIntegerRepresentation() &&
            "Intrinsic WaveActiveBitOr operand must have a unsigned integer 
representation");
 
     Intrinsic::ID ID = CGM.getHLSLRuntime().getWaveActiveBitOrIntrinsic();
diff --git a/clang/test/CodeGenHLSL/builtins/WaveActiveBitOr.hlsl 
b/clang/test/CodeGenHLSL/builtins/WaveActiveBitOr.hlsl
index cfb3d2514cdde..8741c1eccd8a1 100644
--- a/clang/test/CodeGenHLSL/builtins/WaveActiveBitOr.hlsl
+++ b/clang/test/CodeGenHLSL/builtins/WaveActiveBitOr.hlsl
@@ -20,12 +20,3 @@ uint test_uint(uint expr) {
 }
 
 // CHECK: declare [[TY]] @llvm.[[ICF]].wave.reduce.or.i32([[TY]]) #[[#attr:]]
-
-// CHECK-LABEL: test_uint64_t
-uint64_t test_uint64_t(uint64_t expr) {
-  // CHECK:  %[[RET:.*]] = call i1 [[TY:.*]] 
@llvm.[[ICF]].wave.reduce.or.i64([[TY]] %[[#]])
-  // CHECK:  ret [[TY]] %[[RET]]
-  return WaveActiveBitOr(expr);
-}
-
-// CHECK: declare [[TY]] @llvm.[[ICF]].wave.reduce.or.i64([[TY]]) #[[#attr:]]
diff --git a/clang/test/SemaHLSL/BuiltIns/WaveActiveBitOr-errors.hlsl 
b/clang/test/SemaHLSL/BuiltIns/WaveActiveBitOr-errors.hlsl
index 8eb62c7d96b4e..3b8e6f29bb48a 100644
--- a/clang/test/SemaHLSL/BuiltIns/WaveActiveBitOr-errors.hlsl
+++ b/clang/test/SemaHLSL/BuiltIns/WaveActiveBitOr-errors.hlsl
@@ -10,29 +10,29 @@ uint2 test_too_many_arg(uint2 p0) {
   // expected-error@-1 {{too many arguments to function call, expected 1, have 
2}}
 }
 
-bool test_expr_bool_type_check(bool p0) {
+uint test_expr_bool_type_check(bool p0) {
   return __builtin_hlsl_wave_active_bit_or(p0);
   // expected-error@-1 {{invalid operand of type 'bool'}}
 }
 
-float test_expr_float_type_check(float p0) {
+uint test_expr_float_type_check(float p0) {
   return __builtin_hlsl_wave_active_bit_or(p0);
   // expected-error@-1 {{invalid operand of type 'float'}}
 }
 
-bool2 test_expr_bool_vec_type_check(bool2 p0) {
+uint2 test_expr_bool_vec_type_check(bool2 p0) {
   return __builtin_hlsl_wave_active_bit_or(p0);
   // expected-error@-1 {{invalid operand of type 'bool2' (aka 'vector<bool, 
2>')}}
 }
 
-float2 test_expr_float_type_check(float2 p0) {
+uint2 test_expr_float_type_check(float2 p0) {
   return __builtin_hlsl_wave_active_bit_or(p0);
   // expected-error@-1 {{invalid operand of type 'float2' (aka 'vector<float, 
2>')}}
 }
 
 struct S { float f; };
 
-S test_expr_struct_type_check(S p0) {
+uint test_expr_struct_type_check(S p0) {
   return __builtin_hlsl_wave_active_bit_or(p0);
   // expected-error@-1 {{invalid operand of type 'S' where a scalar or vector 
is required}}
 }

>From 165e9bc10ab437b57817d25e18928a514d47f950 Mon Sep 17 00:00:00 2001
From: KungFuDonkey <[email protected]>
Date: Sat, 22 Nov 2025 15:55:35 +0100
Subject: [PATCH 06/13] readded 64 bit test

---
 .../CodeGenHLSL/builtins/WaveActiveBitOr.hlsl   | 17 ++++++++++++-----
 .../AArch64/AArch64MachineFunctionInfo.cpp      |  2 ++
 2 files changed, 14 insertions(+), 5 deletions(-)

diff --git a/clang/test/CodeGenHLSL/builtins/WaveActiveBitOr.hlsl 
b/clang/test/CodeGenHLSL/builtins/WaveActiveBitOr.hlsl
index 8741c1eccd8a1..e9db6254ac520 100644
--- a/clang/test/CodeGenHLSL/builtins/WaveActiveBitOr.hlsl
+++ b/clang/test/CodeGenHLSL/builtins/WaveActiveBitOr.hlsl
@@ -6,17 +6,24 @@
 // RUN:   spirv-pc-vulkan-compute %s -emit-llvm -disable-llvm-passes -o - | \
 // RUN:   FileCheck %s --check-prefixes=CHECK,SPVCHECK
 
-// DXCHECK: define hidden [[FN_TYPE:]]noundef i1 @
-// SPVCHECK: define hidden [[FN_TYPE:spir_func ]]noundef i1 @
-
 // Test basic lowering to runtime function call.
 
 // CHECK-LABEL: test_uint
 uint test_uint(uint expr) {
-  // DXCHECK:  %[[RET:.*]] = call i1 [[TY:.*]] 
@llvm.[[ICF:dx]].wave.reduce.or.i32([[TY]] %[[#]])
-  // SPVCHECK:  %[[RET:.*]] = call i1 [[TY:.*]] 
@llvm.[[ICF:spv]].wave.reduce.or.i32([[TY]] %[[#]])
+  // DXCHECK:  %[[RET:.*]] = call [[TY:.*]] 
@llvm.[[ICF:dx]].wave.reduce.or.i32([[TY]] %[[#]])
+  // SPVCHECK:  %[[RET:.*]] = call [[TY:.*]] 
@llvm.[[ICF:spv]].wave.reduce.or.i32([[TY]] %[[#]])
   // CHECK:  ret [[TY]] %[[RET]]
   return WaveActiveBitOr(expr);
 }
 
 // CHECK: declare [[TY]] @llvm.[[ICF]].wave.reduce.or.i32([[TY]]) #[[#attr:]]
+
+// CHECK-LABEL: test_uint64_t
+uint64_t test_uint64_t(uint64_t expr) {
+  // DXCHECK:  %[[RET:.*]] = call [[TY:.*]] 
@llvm.[[ICF:dx]].wave.reduce.or.i64([[TY]] %[[#]])
+  // SPVCHECK:  %[[RET:.*]] = call [[TY:.*]] 
@llvm.[[ICF:spv]].wave.reduce.or.i64([[TY]] %[[#]])
+  // CHECK:  ret [[TY]] %[[RET]]
+  return WaveActiveBitOr(expr);
+}
+
+// CHECK: declare [[TY]] @llvm.[[ICF]].wave.reduce.or.i64([[TY]]) #[[#attr:]]
diff --git a/llvm/lib/Target/AArch64/AArch64MachineFunctionInfo.cpp 
b/llvm/lib/Target/AArch64/AArch64MachineFunctionInfo.cpp
index d6d63f3b6198d..4ed15eb40756a 100644
--- a/llvm/lib/Target/AArch64/AArch64MachineFunctionInfo.cpp
+++ b/llvm/lib/Target/AArch64/AArch64MachineFunctionInfo.cpp
@@ -182,6 +182,8 @@ bool 
AArch64FunctionInfo::shouldSignReturnAddress(SignReturnAddress Condition,
     return IsLRSpilled;
   case SignReturnAddress::All:
     return true;
+  default:
+    return false;
   }
 }
 

>From 0399f3c0ce97decac58d0425d1d7aa952a0c0bc7 Mon Sep 17 00:00:00 2001
From: KungFuDonkey <[email protected]>
Date: Sat, 22 Nov 2025 16:05:04 +0100
Subject: [PATCH 07/13] removed fix for aarch64machine compilation error

---
 llvm/lib/Target/AArch64/AArch64MachineFunctionInfo.cpp | 2 --
 1 file changed, 2 deletions(-)

diff --git a/llvm/lib/Target/AArch64/AArch64MachineFunctionInfo.cpp 
b/llvm/lib/Target/AArch64/AArch64MachineFunctionInfo.cpp
index 4ed15eb40756a..d6d63f3b6198d 100644
--- a/llvm/lib/Target/AArch64/AArch64MachineFunctionInfo.cpp
+++ b/llvm/lib/Target/AArch64/AArch64MachineFunctionInfo.cpp
@@ -182,8 +182,6 @@ bool 
AArch64FunctionInfo::shouldSignReturnAddress(SignReturnAddress Condition,
     return IsLRSpilled;
   case SignReturnAddress::All:
     return true;
-  default:
-    return false;
   }
 }
 

>From 495bdaa888bf3a01f874dcbd78d272e78f7a7a90 Mon Sep 17 00:00:00 2001
From: KungFuDonkey <[email protected]>
Date: Sun, 23 Nov 2025 15:31:21 +0100
Subject: [PATCH 08/13] fixed tablegen mis indexing arguments and finally able
 to run tests locally

---
 clang/include/clang/Basic/Builtins.td         |  2 +-
 clang/lib/CodeGen/CGHLSLBuiltins.cpp          |  5 +--
 .../CodeGenHLSL/builtins/WaveActiveBitOr.hlsl |  4 +--
 .../BuiltIns/WaveActiveBitOr-errors.hlsl      | 31 +++++--------------
 llvm/include/llvm/IR/IntrinsicsDirectX.td     |  2 +-
 llvm/include/llvm/IR/IntrinsicsSPIRV.td       |  2 +-
 6 files changed, 15 insertions(+), 31 deletions(-)

diff --git a/clang/include/clang/Basic/Builtins.td 
b/clang/include/clang/Basic/Builtins.td
index 9761a212b8284..e1c40bd68fd83 100644
--- a/clang/include/clang/Basic/Builtins.td
+++ b/clang/include/clang/Basic/Builtins.td
@@ -5039,7 +5039,7 @@ def HLSLWaveActiveAnyTrue : LangBuiltin<"HLSL_LANG"> {
 def HLSLWaveActiveBitOr : LangBuiltin<"HLSL_LANG"> {
   let Spellings = ["__builtin_hlsl_wave_active_bit_or"];
   let Attributes = [NoThrow, Const];
-  let Prototype = "void (...)";
+  let Prototype = "unsigned int (unsigned int)";
 }
 
 def HLSLWaveActiveCountBits : LangBuiltin<"HLSL_LANG"> {
diff --git a/clang/lib/CodeGen/CGHLSLBuiltins.cpp 
b/clang/lib/CodeGen/CGHLSLBuiltins.cpp
index 6fe33f37955f8..93797f79276e7 100644
--- a/clang/lib/CodeGen/CGHLSLBuiltins.cpp
+++ b/clang/lib/CodeGen/CGHLSLBuiltins.cpp
@@ -835,8 +835,9 @@ Value *CodeGenFunction::EmitHLSLBuiltinExpr(unsigned 
BuiltinID,
            "Intrinsic WaveActiveBitOr operand must have a unsigned integer 
representation");
 
     Intrinsic::ID ID = CGM.getHLSLRuntime().getWaveActiveBitOrIntrinsic();
-    return EmitRuntimeCall(
-        Intrinsic::getOrInsertDeclaration(&CGM.getModule(), ID), {Op});
+    return EmitRuntimeCall(Intrinsic::getOrInsertDeclaration(
+                               &CGM.getModule(), ID, {Op->getType()}),
+                           ArrayRef{Op}, "hlsl.wave.active.bit.or");
   }
   case Builtin::BI__builtin_hlsl_wave_active_count_bits: {
     Value *OpExpr = EmitScalarExpr(E->getArg(0));
diff --git a/clang/test/CodeGenHLSL/builtins/WaveActiveBitOr.hlsl 
b/clang/test/CodeGenHLSL/builtins/WaveActiveBitOr.hlsl
index e9db6254ac520..7ba36766b6f04 100644
--- a/clang/test/CodeGenHLSL/builtins/WaveActiveBitOr.hlsl
+++ b/clang/test/CodeGenHLSL/builtins/WaveActiveBitOr.hlsl
@@ -11,7 +11,7 @@
 // CHECK-LABEL: test_uint
 uint test_uint(uint expr) {
   // DXCHECK:  %[[RET:.*]] = call [[TY:.*]] 
@llvm.[[ICF:dx]].wave.reduce.or.i32([[TY]] %[[#]])
-  // SPVCHECK:  %[[RET:.*]] = call [[TY:.*]] 
@llvm.[[ICF:spv]].wave.reduce.or.i32([[TY]] %[[#]])
+  // SPVCHECK:  %[[RET:.*]] = call spir_func [[TY:.*]] 
@llvm.[[ICF:spv]].wave.reduce.or.i32([[TY]] %[[#]])
   // CHECK:  ret [[TY]] %[[RET]]
   return WaveActiveBitOr(expr);
 }
@@ -21,7 +21,7 @@ uint test_uint(uint expr) {
 // CHECK-LABEL: test_uint64_t
 uint64_t test_uint64_t(uint64_t expr) {
   // DXCHECK:  %[[RET:.*]] = call [[TY:.*]] 
@llvm.[[ICF:dx]].wave.reduce.or.i64([[TY]] %[[#]])
-  // SPVCHECK:  %[[RET:.*]] = call [[TY:.*]] 
@llvm.[[ICF:spv]].wave.reduce.or.i64([[TY]] %[[#]])
+  // SPVCHECK:  %[[RET:.*]] = call spir_func [[TY:.*]] 
@llvm.[[ICF:spv]].wave.reduce.or.i64([[TY]] %[[#]])
   // CHECK:  ret [[TY]] %[[RET]]
   return WaveActiveBitOr(expr);
 }
diff --git a/clang/test/SemaHLSL/BuiltIns/WaveActiveBitOr-errors.hlsl 
b/clang/test/SemaHLSL/BuiltIns/WaveActiveBitOr-errors.hlsl
index 3b8e6f29bb48a..de40e5bdb45f6 100644
--- a/clang/test/SemaHLSL/BuiltIns/WaveActiveBitOr-errors.hlsl
+++ b/clang/test/SemaHLSL/BuiltIns/WaveActiveBitOr-errors.hlsl
@@ -5,34 +5,17 @@ uint test_too_few_arg() {
   // expected-error@-1 {{too few arguments to function call, expected 1, have 
0}}
 }
 
-uint2 test_too_many_arg(uint2 p0) {
+uint test_too_many_arg(uint p0) {
   return __builtin_hlsl_wave_active_bit_or(p0, p0);
   // expected-error@-1 {{too many arguments to function call, expected 1, have 
2}}
 }
 
-uint test_expr_bool_type_check(bool p0) {
-  return __builtin_hlsl_wave_active_bit_or(p0);
-  // expected-error@-1 {{invalid operand of type 'bool'}}
-}
-
-uint test_expr_float_type_check(float p0) {
-  return __builtin_hlsl_wave_active_bit_or(p0);
-  // expected-error@-1 {{invalid operand of type 'float'}}
-}
-
-uint2 test_expr_bool_vec_type_check(bool2 p0) {
-  return __builtin_hlsl_wave_active_bit_or(p0);
-  // expected-error@-1 {{invalid operand of type 'bool2' (aka 'vector<bool, 
2>')}}
-}
-
-uint2 test_expr_float_type_check(float2 p0) {
-  return __builtin_hlsl_wave_active_bit_or(p0);
-  // expected-error@-1 {{invalid operand of type 'float2' (aka 'vector<float, 
2>')}}
-}
-
-struct S { float f; };
+struct Foo
+{
+  int a;
+};
 
-uint test_expr_struct_type_check(S p0) {
+uint test_type_check(Foo p0) {
   return __builtin_hlsl_wave_active_bit_or(p0);
-  // expected-error@-1 {{invalid operand of type 'S' where a scalar or vector 
is required}}
+  // expected-error@-1 {{no viable conversion from 'Foo' to 'unsigned int'}}
 }
diff --git a/llvm/include/llvm/IR/IntrinsicsDirectX.td 
b/llvm/include/llvm/IR/IntrinsicsDirectX.td
index c5e2e24051877..e7889faf6e3a8 100644
--- a/llvm/include/llvm/IR/IntrinsicsDirectX.td
+++ b/llvm/include/llvm/IR/IntrinsicsDirectX.td
@@ -154,7 +154,7 @@ def int_dx_wave_active_countbits : 
DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i1
 def int_dx_wave_all : DefaultAttrsIntrinsic<[llvm_i1_ty], [llvm_i1_ty], 
[IntrConvergent, IntrNoMem]>;
 def int_dx_wave_any : DefaultAttrsIntrinsic<[llvm_i1_ty], [llvm_i1_ty], 
[IntrConvergent, IntrNoMem]>;
 def int_dx_wave_getlaneindex : DefaultAttrsIntrinsic<[llvm_i32_ty], [], 
[IntrConvergent, IntrNoMem]>;
-def int_dx_wave_reduce_or : DefaultAttrsIntrinsic<[llvm_anyint_ty], 
[llvm_anyint_ty], [IntrConvergent, IntrNoMem]>;
+def int_dx_wave_reduce_or : DefaultAttrsIntrinsic<[llvm_anyint_ty], 
[LLVMMatchType<0>], [IntrConvergent, IntrNoMem]>;
 def int_dx_wave_reduce_max : DefaultAttrsIntrinsic<[llvm_any_ty], 
[LLVMMatchType<0>], [IntrConvergent, IntrNoMem]>;
 def int_dx_wave_reduce_umax : DefaultAttrsIntrinsic<[llvm_anyint_ty], 
[LLVMMatchType<0>], [IntrConvergent, IntrNoMem]>;
 def int_dx_wave_reduce_min : DefaultAttrsIntrinsic<[llvm_any_ty], 
[LLVMMatchType<0>], [IntrConvergent, IntrNoMem]>;
diff --git a/llvm/include/llvm/IR/IntrinsicsSPIRV.td 
b/llvm/include/llvm/IR/IntrinsicsSPIRV.td
index 93a26b4bcaef9..1c791ee8f2297 100644
--- a/llvm/include/llvm/IR/IntrinsicsSPIRV.td
+++ b/llvm/include/llvm/IR/IntrinsicsSPIRV.td
@@ -120,7 +120,7 @@ def int_spv_rsqrt : 
DefaultAttrsIntrinsic<[LLVMMatchType<0>], [llvm_anyfloat_ty]
   def int_spv_wave_active_countbits : DefaultAttrsIntrinsic<[llvm_i32_ty], 
[llvm_i1_ty], [IntrConvergent, IntrNoMem]>;
   def int_spv_wave_all : DefaultAttrsIntrinsic<[llvm_i1_ty], [llvm_i1_ty], 
[IntrConvergent, IntrNoMem]>;
   def int_spv_wave_any : DefaultAttrsIntrinsic<[llvm_i1_ty], [llvm_i1_ty], 
[IntrConvergent, IntrNoMem]>;
-  def int_spv_wave_reduce_or : DefaultAttrsIntrinsic<[llvm_anyint_ty], 
[llvm_anyint_ty], [IntrConvergent, IntrNoMem]>;
+  def int_spv_wave_reduce_or : DefaultAttrsIntrinsic<[llvm_anyint_ty], 
[LLVMMatchType<0>], [IntrConvergent, IntrNoMem]>;
   def int_spv_wave_reduce_umax : DefaultAttrsIntrinsic<[llvm_any_ty], 
[LLVMMatchType<0>], [IntrConvergent, IntrNoMem]>;
   def int_spv_wave_reduce_max : DefaultAttrsIntrinsic<[llvm_any_ty], 
[LLVMMatchType<0>], [IntrConvergent, IntrNoMem]>;
   def int_spv_wave_reduce_min : DefaultAttrsIntrinsic<[llvm_any_ty], 
[LLVMMatchType<0>], [IntrConvergent, IntrNoMem]>;

>From d034a8b1b9df1c0ad7657856d2eaa60781198585 Mon Sep 17 00:00:00 2001
From: KungFuDonkey <[email protected]>
Date: Sun, 23 Nov 2025 17:12:45 +0100
Subject: [PATCH 09/13] clang format

---
 clang/lib/CodeGen/CGHLSLBuiltins.cpp               | 3 ++-
 llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp | 5 +++--
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/clang/lib/CodeGen/CGHLSLBuiltins.cpp 
b/clang/lib/CodeGen/CGHLSLBuiltins.cpp
index 93797f79276e7..7969eabc206e4 100644
--- a/clang/lib/CodeGen/CGHLSLBuiltins.cpp
+++ b/clang/lib/CodeGen/CGHLSLBuiltins.cpp
@@ -832,7 +832,8 @@ Value *CodeGenFunction::EmitHLSLBuiltinExpr(unsigned 
BuiltinID,
   case Builtin::BI__builtin_hlsl_wave_active_bit_or: {
     Value *Op = EmitScalarExpr(E->getArg(0));
     assert(E->getArg(0)->getType()->hasUnsignedIntegerRepresentation() &&
-           "Intrinsic WaveActiveBitOr operand must have a unsigned integer 
representation");
+           "Intrinsic WaveActiveBitOr operand must have a unsigned integer "
+           "representation");
 
     Intrinsic::ID ID = CGM.getHLSLRuntime().getWaveActiveBitOrIntrinsic();
     return EmitRuntimeCall(Intrinsic::getOrInsertDeclaration(
diff --git a/llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp 
b/llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp
index d4514143be3a8..de7b0c3c14280 100644
--- a/llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp
+++ b/llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp
@@ -2443,8 +2443,9 @@ bool SPIRVInstructionSelector::selectWaveActiveCountBits(
   return Result;
 }
 
-bool SPIRVInstructionSelector::selectWaveReduceOr(
-    Register ResVReg, const SPIRVType *ResType, MachineInstr &I) const {
+bool SPIRVInstructionSelector::selectWaveReduceOr(Register ResVReg,
+                                                  const SPIRVType *ResType,
+                                                  MachineInstr &I) const {
 
   assert(I.getNumOperands() == 3);
   assert(I.getOperand(2).isReg());

>From ea8588cb2cf8afc6893677e640530cb1b5509596 Mon Sep 17 00:00:00 2001
From: KungFuDonkey <[email protected]>
Date: Sun, 23 Nov 2025 17:16:12 +0100
Subject: [PATCH 10/13] clang format

---
 clang/lib/Sema/SemaHLSL.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/clang/lib/Sema/SemaHLSL.cpp b/clang/lib/Sema/SemaHLSL.cpp
index daa2625ce7ae0..5e48996d23cac 100644
--- a/clang/lib/Sema/SemaHLSL.cpp
+++ b/clang/lib/Sema/SemaHLSL.cpp
@@ -3332,7 +3332,7 @@ bool SemaHLSL::CheckBuiltinFunctionCall(unsigned 
BuiltinID, CallExpr *TheCall) {
     QualType ArgTyExpr = Expr.get()->getType();
     auto *VTy = ArgTyExpr->getAs<VectorType>();
     if (!(ArgTyExpr->isIntegerType() ||
-         (VTy && VTy->getElementType()->isIntegerType()))) {
+          (VTy && VTy->getElementType()->isIntegerType()))) {
       SemaRef.Diag(TheCall->getArg(0)->getBeginLoc(),
                    diag::err_builtin_invalid_arg_type)
           << ArgTyExpr << SemaRef.Context.UnsignedIntTy << 1 << 0 << 0;

>From a2dc315e487d5ddc34bc86f889aaee0308552a59 Mon Sep 17 00:00:00 2001
From: KungFuDonkey <[email protected]>
Date: Sat, 7 Feb 2026 13:17:38 +0100
Subject: [PATCH 11/13] added vector tests, float test and updated other
 comments

---
 .../lib/Headers/hlsl/hlsl_alias_intrinsics.h  |  5 +-
 .../CodeGenHLSL/builtins/WaveActiveBitOr.hlsl | 60 ++++++++++++++
 .../BuiltIns/WaveActiveBitOr-errors.hlsl      |  5 ++
 .../Target/SPIRV/SPIRVInstructionSelector.cpp | 80 +++++++++----------
 4 files changed, 108 insertions(+), 42 deletions(-)

diff --git a/clang/lib/Headers/hlsl/hlsl_alias_intrinsics.h 
b/clang/lib/Headers/hlsl/hlsl_alias_intrinsics.h
index 426666159650d..e781c2a95e7dc 100644
--- a/clang/lib/Headers/hlsl/hlsl_alias_intrinsics.h
+++ b/clang/lib/Headers/hlsl/hlsl_alias_intrinsics.h
@@ -2591,8 +2591,9 @@ __attribute__((convergent)) double4 
WaveReadLaneAt(double4, uint32_t);
 // WaveActiveBitOr builtins
 
//===----------------------------------------------------------------------===//
 
-// \brief Returns the value of the expression for the given lane index within
-// the specified wave.
+// \brief Returns the bitwise OR of all the values of <expr> across all active
+// non-helper lanes in the current wave, and replicates it back to
+// all active non-helper lanes.
 
 _HLSL_AVAILABILITY(shadermodel, 6.0)
 _HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_bit_or)
diff --git a/clang/test/CodeGenHLSL/builtins/WaveActiveBitOr.hlsl 
b/clang/test/CodeGenHLSL/builtins/WaveActiveBitOr.hlsl
index 7ba36766b6f04..eb633ae3d16db 100644
--- a/clang/test/CodeGenHLSL/builtins/WaveActiveBitOr.hlsl
+++ b/clang/test/CodeGenHLSL/builtins/WaveActiveBitOr.hlsl
@@ -18,6 +18,36 @@ uint test_uint(uint expr) {
 
 // CHECK: declare [[TY]] @llvm.[[ICF]].wave.reduce.or.i32([[TY]]) #[[#attr:]]
 
+// CHECK-LABEL: test_uint2
+uint2 test_uint2(uint2 expr) {
+  // DXCHECK:  %[[RET:.*]] = call [[TY:.*]] 
@llvm.[[ICF:dx]].wave.reduce.or.v2i32([[TY]] %[[#]])
+  // SPVCHECK:  %[[RET:.*]] = call spir_func [[TY:.*]] 
@llvm.[[ICF:spv]].wave.reduce.or.v2i32([[TY]] %[[#]])
+  // CHECK:  ret [[TY]] %[[RET]]
+  return WaveActiveBitOr(expr);
+}
+
+// CHECK: declare [[TY]] @llvm.[[ICF]].wave.reduce.or.v2i32([[TY]]) #[[#attr:]]
+
+// CHECK-LABEL: test_uint3
+uint3 test_uint3(uint3 expr) {
+  // DXCHECK:  %[[RET:.*]] = call [[TY:.*]] 
@llvm.[[ICF:dx]].wave.reduce.or.v3i32([[TY]] %[[#]])
+  // SPVCHECK:  %[[RET:.*]] = call spir_func [[TY:.*]] 
@llvm.[[ICF:spv]].wave.reduce.or.v3i32([[TY]] %[[#]])
+  // CHECK:  ret [[TY]] %[[RET]]
+  return WaveActiveBitOr(expr);
+}
+
+// CHECK: declare [[TY]] @llvm.[[ICF]].wave.reduce.or.v3i32([[TY]]) #[[#attr:]]
+
+// CHECK-LABEL: test_uint4
+uint4 test_uint4(uint4 expr) {
+  // DXCHECK:  %[[RET:.*]] = call [[TY:.*]] 
@llvm.[[ICF:dx]].wave.reduce.or.v4i32([[TY]] %[[#]])
+  // SPVCHECK:  %[[RET:.*]] = call spir_func [[TY:.*]] 
@llvm.[[ICF:spv]].wave.reduce.or.v4i32([[TY]] %[[#]])
+  // CHECK:  ret [[TY]] %[[RET]]
+  return WaveActiveBitOr(expr);
+}
+
+// CHECK: declare [[TY]] @llvm.[[ICF]].wave.reduce.or.v4i32([[TY]]) #[[#attr:]]
+
 // CHECK-LABEL: test_uint64_t
 uint64_t test_uint64_t(uint64_t expr) {
   // DXCHECK:  %[[RET:.*]] = call [[TY:.*]] 
@llvm.[[ICF:dx]].wave.reduce.or.i64([[TY]] %[[#]])
@@ -27,3 +57,33 @@ uint64_t test_uint64_t(uint64_t expr) {
 }
 
 // CHECK: declare [[TY]] @llvm.[[ICF]].wave.reduce.or.i64([[TY]]) #[[#attr:]]
+
+// CHECK-LABEL: test_uint64_t2
+uint64_t2 test_uint64_t(uint64_t2 expr) {
+  // DXCHECK:  %[[RET:.*]] = call [[TY:.*]] 
@llvm.[[ICF:dx]].wave.reduce.or.v2i64([[TY]] %[[#]])
+  // SPVCHECK:  %[[RET:.*]] = call spir_func [[TY:.*]] 
@llvm.[[ICF:spv]].wave.reduce.or.v2i64([[TY]] %[[#]])
+  // CHECK:  ret [[TY]] %[[RET]]
+  return WaveActiveBitOr(expr);
+}
+
+// CHECK: declare [[TY]] @llvm.[[ICF]].wave.reduce.or.v2i64([[TY]]) #[[#attr:]]
+
+// CHECK-LABEL: test_uint64_t3
+uint64_t3 test_uint64_t(uint64_t3 expr) {
+  // DXCHECK:  %[[RET:.*]] = call [[TY:.*]] 
@llvm.[[ICF:dx]].wave.reduce.or.v3i64([[TY]] %[[#]])
+  // SPVCHECK:  %[[RET:.*]] = call spir_func [[TY:.*]] 
@llvm.[[ICF:spv]].wave.reduce.or.v3i64([[TY]] %[[#]])
+  // CHECK:  ret [[TY]] %[[RET]]
+  return WaveActiveBitOr(expr);
+}
+
+// CHECK: declare [[TY]] @llvm.[[ICF]].wave.reduce.or.v3i64([[TY]]) #[[#attr:]]
+
+// CHECK-LABEL: test_uint64_t4
+uint64_t4 test_uint64_t4(uint64_t4 expr) {
+  // DXCHECK:  %[[RET:.*]] = call [[TY:.*]] 
@llvm.[[ICF:dx]].wave.reduce.or.v4i64([[TY]] %[[#]])
+  // SPVCHECK:  %[[RET:.*]] = call spir_func [[TY:.*]] 
@llvm.[[ICF:spv]].wave.reduce.or.v4i64([[TY]] %[[#]])
+  // CHECK:  ret [[TY]] %[[RET]]
+  return WaveActiveBitOr(expr);
+}
+
+// CHECK: declare [[TY]] @llvm.[[ICF]].wave.reduce.or.v4i64([[TY]]) #[[#attr:]]
diff --git a/clang/test/SemaHLSL/BuiltIns/WaveActiveBitOr-errors.hlsl 
b/clang/test/SemaHLSL/BuiltIns/WaveActiveBitOr-errors.hlsl
index de40e5bdb45f6..73479c39e2e2f 100644
--- a/clang/test/SemaHLSL/BuiltIns/WaveActiveBitOr-errors.hlsl
+++ b/clang/test/SemaHLSL/BuiltIns/WaveActiveBitOr-errors.hlsl
@@ -19,3 +19,8 @@ uint test_type_check(Foo p0) {
   return __builtin_hlsl_wave_active_bit_or(p0);
   // expected-error@-1 {{no viable conversion from 'Foo' to 'unsigned int'}}
 }
+
+float test_expr_bool_type_check(float p0) {
+  return __builtin_hlsl_wave_active_bit_or(p0);
+  // expected-error@-1 {{1st argument must be a scalar or vector of integer 
types (was 'float')}}
+}
diff --git a/llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp 
b/llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp
index 773dd86eeef38..1c91c37ffdfd5 100644
--- a/llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp
+++ b/llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp
@@ -1874,15 +1874,15 @@ bool SPIRVInstructionSelector::selectAtomicRMW(Register 
ResVReg,
     ValueReg = TmpReg;
   }
 
-         BuildMI(*I.getParent(), I, I.getDebugLoc(), TII.get(NewOpcode))
-             .addDef(ResVReg)
-             .addUse(GR.getSPIRVTypeID(ResType))
-             .addUse(Ptr)
-             .addUse(ScopeReg)
-             .addUse(MemSemReg)
-             .addUse(ValueReg)
-             .constrainAllUses(TII, TRI, RBI);
-         return true;
+  BuildMI(*I.getParent(), I, I.getDebugLoc(), TII.get(NewOpcode))
+      .addDef(ResVReg)
+      .addUse(GR.getSPIRVTypeID(ResType))
+      .addUse(Ptr)
+      .addUse(ScopeReg)
+      .addUse(MemSemReg)
+      .addUse(ValueReg)
+      .constrainAllUses(TII, TRI, RBI);
+  return true;
 }
 
 bool SPIRVInstructionSelector::selectUnmergeValues(MachineInstr &I) const {
@@ -2531,12 +2531,12 @@ bool 
SPIRVInstructionSelector::selectIntegerDotExpansion(
   for (unsigned i = 1; i < GR.getScalarOrVectorComponentCount(VecType); i++) {
     Register Elt = MRI->createVirtualRegister(GR.getRegClass(ResType));
 
-        BuildMI(BB, I, I.getDebugLoc(), TII.get(SPIRV::OpCompositeExtract))
-            .addDef(Elt)
-            .addUse(GR.getSPIRVTypeID(ResType))
-            .addUse(TmpVec)
-            .addImm(i)
-            .constrainAllUses(TII, TRI, RBI);
+    BuildMI(BB, I, I.getDebugLoc(), TII.get(SPIRV::OpCompositeExtract))
+        .addDef(Elt)
+        .addUse(GR.getSPIRVTypeID(ResType))
+        .addUse(TmpVec)
+        .addImm(i)
+        .constrainAllUses(TII, TRI, RBI);
 
     Register Sum = i < GR.getScalarOrVectorComponentCount(VecType) - 1
                        ? MRI->createVirtualRegister(GR.getRegClass(ResType))
@@ -2737,13 +2737,13 @@ bool SPIRVInstructionSelector::selectSign(Register 
ResVReg,
                          ? MRI->createVirtualRegister(&SPIRV::IDRegClass)
                          : ResVReg;
 
-      BuildMI(BB, I, DL, TII.get(SPIRV::OpExtInst))
-          .addDef(SignReg)
-          .addUse(GR.getSPIRVTypeID(InputType))
-          .addImm(static_cast<uint32_t>(SPIRV::InstructionSet::GLSL_std_450))
-          .addImm(SignOpcode)
-          .addUse(InputRegister)
-          .constrainAllUses(TII, TRI, RBI);
+  BuildMI(BB, I, DL, TII.get(SPIRV::OpExtInst))
+      .addDef(SignReg)
+      .addUse(GR.getSPIRVTypeID(InputType))
+      .addImm(static_cast<uint32_t>(SPIRV::InstructionSet::GLSL_std_450))
+      .addImm(SignOpcode)
+      .addUse(InputRegister)
+      .constrainAllUses(TII, TRI, RBI);
 
   if (NeedsConversion) {
     auto ConvertOpcode = IsFloatTy ? SPIRV::OpConvertFToS : SPIRV::OpSConvert;
@@ -2802,7 +2802,6 @@ bool SPIRVInstructionSelector::selectWaveActiveCountBits(
   return true;
 }
 
-
 bool SPIRVInstructionSelector::selectWavePrefixBitCount(
     Register ResVReg, const SPIRVType *ResType, MachineInstr &I) const {
 
@@ -3681,22 +3680,22 @@ bool SPIRVInstructionSelector::selectDerivativeInst(
   Register ConvertToVReg = MRI->createVirtualRegister(RegClass);
   Register DpdOpVReg = MRI->createVirtualRegister(RegClass);
 
-      BuildMI(*I.getParent(), I, I.getDebugLoc(), TII.get(SPIRV::OpFConvert))
-          .addDef(ConvertToVReg)
-          .addUse(GR.getSPIRVTypeID(F32ConvertTy))
-          .addUse(SrcReg)
-          .constrainAllUses(TII, TRI, RBI);
-      BuildMI(*I.getParent(), I, I.getDebugLoc(), TII.get(DPdOpCode))
-          .addDef(DpdOpVReg)
-          .addUse(GR.getSPIRVTypeID(F32ConvertTy))
-          .addUse(ConvertToVReg)
-          .constrainAllUses(TII, TRI, RBI);
-      BuildMI(*I.getParent(), I, I.getDebugLoc(), TII.get(SPIRV::OpFConvert))
-          .addDef(ResVReg)
-          .addUse(GR.getSPIRVTypeID(ResType))
-          .addUse(DpdOpVReg)
-          .constrainAllUses(TII, TRI, RBI);
-      return true;
+  BuildMI(*I.getParent(), I, I.getDebugLoc(), TII.get(SPIRV::OpFConvert))
+      .addDef(ConvertToVReg)
+      .addUse(GR.getSPIRVTypeID(F32ConvertTy))
+      .addUse(SrcReg)
+      .constrainAllUses(TII, TRI, RBI);
+  BuildMI(*I.getParent(), I, I.getDebugLoc(), TII.get(DPdOpCode))
+      .addDef(DpdOpVReg)
+      .addUse(GR.getSPIRVTypeID(F32ConvertTy))
+      .addUse(ConvertToVReg)
+      .constrainAllUses(TII, TRI, RBI);
+  BuildMI(*I.getParent(), I, I.getDebugLoc(), TII.get(SPIRV::OpFConvert))
+      .addDef(ResVReg)
+      .addUse(GR.getSPIRVTypeID(ResType))
+      .addUse(DpdOpVReg)
+      .constrainAllUses(TII, TRI, RBI);
+  return true;
 }
 
 bool SPIRVInstructionSelector::selectIntrinsic(Register ResVReg,
@@ -4056,7 +4055,8 @@ bool SPIRVInstructionSelector::selectIntrinsic(Register 
ResVReg,
   case Intrinsic::spv_wave_is_first_lane:
     return selectWaveOpInst(ResVReg, ResType, I, 
SPIRV::OpGroupNonUniformElect);
   case Intrinsic::spv_wave_reduce_or:
-    return selectWaveOpInst(ResVReg, ResType, I, 
SPIRV::OpGroupNonUniformBitwiseOr);
+    return selectWaveOpInst(ResVReg, ResType, I,
+                            SPIRV::OpGroupNonUniformBitwiseOr);
   case Intrinsic::spv_wave_reduce_umax:
     return selectWaveReduceMax(ResVReg, ResType, I, /*IsUnsigned*/ true);
   case Intrinsic::spv_wave_reduce_max:

>From 714d737f686a4b4c887593c52ca5c3d146c1fac8 Mon Sep 17 00:00:00 2001
From: KungFuDonkey <[email protected]>
Date: Sat, 7 Feb 2026 13:23:52 +0100
Subject: [PATCH 12/13] Reset basic builtins

---
 clang/include/clang/Basic/Builtins.td | 285 +++++++++++---------------
 1 file changed, 119 insertions(+), 166 deletions(-)

diff --git a/clang/include/clang/Basic/Builtins.td 
b/clang/include/clang/Basic/Builtins.td
index b4acc07fd4cd5..05e3af4a0e96f 100644
--- a/clang/include/clang/Basic/Builtins.td
+++ b/clang/include/clang/Basic/Builtins.td
@@ -8,64 +8,68 @@
 
 include "clang/Basic/BuiltinsBase.td"
 
-class FPMathTemplate
-    : Template<["float", "double", "long double"], ["f", "", "l"]>;
+class FPMathTemplate : Template<["float", "double", "long double"],
+                                ["f",     "",       "l"]>;
 
-class FPMathWithF16Template
-    : Template<["float", "double", "long double", "__fp16"], ["f", "", "l",
-                                                              "f16"]>;
+class FPMathWithF16Template :
+    Template<["float", "double", "long double", "__fp16"],
+             ["f",     "",       "l",           "f16"]>;
 
-class FPMathWithF16F128Template
-    : Template<["float", "double", "long double", "__fp16", "__float128"],
-               ["f", "", "l", "f16", "f128"]>;
+class FPMathWithF16F128Template :
+    Template<["float", "double", "long double", "__fp16", "__float128"],
+             ["f",     "",       "l",           "f16",    "f128"]>;
 
-class FPMathWithF128Template
-    : Template<["float", "double", "long double", "__float128"], ["f", "", "l",
-                                                                  "f128"]>;
+class FPMathWithF128Template :
+    Template<["float", "double", "long double", "__float128"],
+             ["f",     "",       "l",           "f128"]>;
 
-class F16F128MathTemplate : Template<["__fp16", "__float128"], ["f16", 
"f128"]>;
+class F16F128MathTemplate : Template<["__fp16", "__float128"],
+                                     ["f16",    "f128"]>;
 
-class IntMathTemplate
-    : Template<["int", "long int", "long long int"], ["", "l", "ll"],
-               /*AsPrefix=*/1>;
+class IntMathTemplate : Template<["int", "long int", "long long int"],
+                                 ["",     "l",       "ll"], /*AsPrefix=*/1>;
 
-class MSInt8_16_32Template
-    : Template<["char", "short", "msint32_t"], ["8", "16", ""]>;
+class MSInt8_16_32Template : Template<["char", "short", "msint32_t"],
+                                      ["8",    "16",    ""]>;
 
 class Int8_16_32_64Template
-    : Template<["char", "short", "int", "long long int"], ["8", "16", "32",
-                                                           "64"]>;
+    : Template<["char", "short", "int", "long long int"],
+               ["8",    "16",    "32",  "64"]>;
 
 class MSInt8_16_32_64Template
-    : Template<["char", "short", "msint32_t", "long long int"], ["8", "16", "",
-                                                                 "64"]>;
+    : Template<["char", "short", "msint32_t", "long long int"],
+               ["8",    "16",    "",          "64"]>;
 
-class MSInt16_32Template : Template<["short", "msint32_t"], ["16", ""]>;
+class MSInt16_32Template : Template<["short", "msint32_t"],
+                                    ["16",    ""]>;
 
-class MSUInt16_32_64Template
-    : Template<["unsigned short", "unsigned int", "uint64_t"], ["16", "",
-                                                                "64"]>;
+class MSUInt16_32_64Template :
+    Template<["unsigned short", "unsigned int", "uint64_t"],
+             ["16",             "",             "64"]>;
 
-class MSInt32_64Template : Template<["msint32_t", "int64_t"], ["", "64"]>;
+class MSInt32_64Template : Template<["msint32_t", "int64_t"],
+                                    ["",          "64"]>;
 
-class FloatDoubleTemplate : Template<["float", "double"], ["f", ""]>;
+class FloatDoubleTemplate : Template<["float", "double"],
+                                     ["f",     ""]>;
 
 // FIXME: These assume that char -> i8, short -> i16, int -> i32,
 // long long -> i64.
-class SyncBuiltinsTemplate
-    : Template<["char", "short", "int", "long long int", "__int128_t"],
-               ["1", "2", "4", "8", "16"]>;
+class SyncBuiltinsTemplate :
+    Template<["char", "short", "int", "long long int", "__int128_t"],
+             ["1",    "2",     "4",   "8",             "16"]>;
 
-class BitInt8_16_32_64BuiltinsTemplate
-    : Template<["unsigned char", "unsigned short", "uint32_t", "uint64_t"],
-               ["8", "16", "32", "64"]>;
+class BitInt8_16_32_64BuiltinsTemplate :
+    Template<["unsigned char", "unsigned short", "uint32_t", "uint64_t"],
+             ["8",             "16",             "32",       "64"]>;
 
-class BitShort_Int_Long_LongLongTemplate
-    : Template<["short", "int", "long int", "long long int"], ["s", "", "l",
-                                                               "ll"]>;
+class BitShort_Int_Long_LongLongTemplate :
+    Template<["short", "int", "long int", "long long int"],
+             ["s",     "",    "l",        "ll"]>;
 
-class BitInt_Long_LongLongTemplate
-    : Template<["int", "long int", "long long int"], ["", "l", "ll"]>;
+class BitInt_Long_LongLongTemplate :
+    Template<["int", "long int", "long long int"],
+             ["",    "l",        "ll"]>;
 
 // Most of the types used in the prototypes are types from C, C++ or ObjC. 
There
 // are a few builtin-specific types and qualifiers.
@@ -135,64 +139,55 @@ def CeilF16F128 : Builtin, F16F128MathTemplate {
 
 def CosF16F128 : Builtin, F16F128MathTemplate {
   let Spellings = ["__builtin_cos"];
-  let Attributes = [FunctionWithBuiltinPrefix, NoThrow,
-                    ConstIgnoringErrnoAndExceptions];
+  let Attributes = [FunctionWithBuiltinPrefix, NoThrow, 
ConstIgnoringErrnoAndExceptions];
   let Prototype = "T(T)";
 }
 
 def CoshF16F128 : Builtin, F16F128MathTemplate {
   let Spellings = ["__builtin_cosh"];
-  let Attributes = [FunctionWithBuiltinPrefix, NoThrow,
-                    ConstIgnoringErrnoAndExceptions];
+  let Attributes = [FunctionWithBuiltinPrefix, NoThrow, 
ConstIgnoringErrnoAndExceptions];
   let Prototype = "T(T)";
 }
 
 def ErfF128 : Builtin {
   let Spellings = ["__builtin_erff128"];
-  let Attributes = [FunctionWithBuiltinPrefix, NoThrow,
-                    ConstIgnoringErrnoAndExceptions];
+  let Attributes = [FunctionWithBuiltinPrefix, NoThrow, 
ConstIgnoringErrnoAndExceptions];
   let Prototype = "__float128(__float128)";
 }
 
 def ErfcF128 : Builtin {
   let Spellings = ["__builtin_erfcf128"];
-  let Attributes = [FunctionWithBuiltinPrefix, NoThrow,
-                    ConstIgnoringErrnoAndExceptions];
+  let Attributes = [FunctionWithBuiltinPrefix, NoThrow, 
ConstIgnoringErrnoAndExceptions];
   let Prototype = "__float128(__float128)";
 }
 
 def ExpF16F128 : Builtin, F16F128MathTemplate {
   let Spellings = ["__builtin_exp"];
-  let Attributes = [FunctionWithBuiltinPrefix, NoThrow,
-                    ConstIgnoringErrnoAndExceptions];
+  let Attributes = [FunctionWithBuiltinPrefix, NoThrow, 
ConstIgnoringErrnoAndExceptions];
   let Prototype = "T(T)";
 }
 
 def Exp2F16F128 : Builtin, F16F128MathTemplate {
   let Spellings = ["__builtin_exp2"];
-  let Attributes = [FunctionWithBuiltinPrefix, NoThrow,
-                    ConstIgnoringErrnoAndExceptions];
+  let Attributes = [FunctionWithBuiltinPrefix, NoThrow, 
ConstIgnoringErrnoAndExceptions];
   let Prototype = "T(T)";
 }
 
 def Exp10F16F128 : Builtin, F16F128MathTemplate {
   let Spellings = ["__builtin_exp10"];
-  let Attributes = [FunctionWithBuiltinPrefix, NoThrow,
-                    ConstIgnoringErrnoAndExceptions];
+  let Attributes = [FunctionWithBuiltinPrefix, NoThrow, 
ConstIgnoringErrnoAndExceptions];
   let Prototype = "T(T)";
 }
 
 def Expm1F128 : Builtin {
   let Spellings = ["__builtin_expm1f128"];
-  let Attributes = [FunctionWithBuiltinPrefix, NoThrow,
-                    ConstIgnoringErrnoAndExceptions];
+  let Attributes = [FunctionWithBuiltinPrefix, NoThrow, 
ConstIgnoringErrnoAndExceptions];
   let Prototype = "__float128(__float128)";
 }
 
 def FdimF128 : Builtin {
   let Spellings = ["__builtin_fdimf128"];
-  let Attributes = [FunctionWithBuiltinPrefix, NoThrow,
-                    ConstIgnoringErrnoAndExceptions];
+  let Attributes = [FunctionWithBuiltinPrefix, NoThrow, 
ConstIgnoringErrnoAndExceptions];
   let Prototype = "__float128(__float128, __float128)";
 }
 
@@ -204,8 +199,7 @@ def FloorF16F128 : Builtin, F16F128MathTemplate {
 
 def FmaF16F128 : Builtin, F16F128MathTemplate {
   let Spellings = ["__builtin_fma"];
-  let Attributes = [FunctionWithBuiltinPrefix, NoThrow,
-                    ConstIgnoringErrnoAndExceptions];
+  let Attributes = [FunctionWithBuiltinPrefix, NoThrow, 
ConstIgnoringErrnoAndExceptions];
   let Prototype = "T(T, T, T)";
 }
 
@@ -235,8 +229,7 @@ def FminimumNumF16F128 : Builtin, F16F128MathTemplate {
 
 def Atan2F16F128 : Builtin, F16F128MathTemplate {
   let Spellings = ["__builtin_atan2"];
-  let Attributes = [FunctionWithBuiltinPrefix, NoThrow,
-                    ConstIgnoringErrnoAndExceptions];
+  let Attributes = [FunctionWithBuiltinPrefix, NoThrow, 
ConstIgnoringErrnoAndExceptions];
   let Prototype = "T(T, T)";
 }
 
@@ -266,8 +259,7 @@ def FabsF128 : Builtin {
 
 def FmodF16F128 : F16F128MathTemplate, Builtin {
   let Spellings = ["__builtin_fmod"];
-  let Attributes = [FunctionWithBuiltinPrefix, NoThrow,
-                    ConstIgnoringErrnoAndExceptions];
+  let Attributes = [FunctionWithBuiltinPrefix, NoThrow, 
ConstIgnoringErrnoAndExceptions];
   let Prototype = "T(T, T)";
 }
 
@@ -284,7 +276,7 @@ def HugeVal : Builtin, FPMathWithF128Template {
 }
 
 def HugeValF16 : Builtin {
-  let Spellings = ["__builtin_huge_valf16"];
+       let Spellings = ["__builtin_huge_valf16"];
   let Attributes = [NoThrow, Const, Constexpr];
   let Prototype = "_Float16()";
 }
@@ -303,8 +295,7 @@ def InfF16 : Builtin {
 
 def LdexpF16F128 : F16F128MathTemplate, Builtin {
   let Spellings = ["__builtin_ldexp"];
-  let Attributes = [FunctionWithBuiltinPrefix, NoThrow,
-                    ConstIgnoringErrnoAndExceptions];
+  let Attributes = [FunctionWithBuiltinPrefix, NoThrow, 
ConstIgnoringErrnoAndExceptions];
   let Prototype = "T(T, int)";
 }
 
@@ -328,10 +319,9 @@ def NanF128 : Builtin {
   let Prototype = "__float128(char const*)";
 }
 
-def Nans
-    : Builtin,
-      Template<["float", "double", "long double", "_Float16", "__float128"],
-               ["f", "", "l", "f16", "f128"]> {
+def Nans : Builtin,
+    Template<["float", "double", "long double", "_Float16", "__float128"],
+             ["f",     "",       "l",           "f16",      "f128"]> {
   let Spellings = ["__builtin_nans"];
   let Attributes = [FunctionWithBuiltinPrefix, NoThrow, Pure, Constexpr];
   let Prototype = "T(char const*)";
@@ -345,22 +335,19 @@ def PowI : Builtin, FPMathTemplate {
 
 def PowF16F128 : Builtin, F16F128MathTemplate {
   let Spellings = ["__builtin_pow"];
-  let Attributes = [FunctionWithBuiltinPrefix, NoThrow,
-                    ConstIgnoringErrnoAndExceptions];
+  let Attributes = [FunctionWithBuiltinPrefix, NoThrow, 
ConstIgnoringErrnoAndExceptions];
   let Prototype = "T(T, T)";
 }
 
 def HypotF128 : Builtin {
   let Spellings = ["__builtin_hypotf128"];
-  let Attributes = [FunctionWithBuiltinPrefix, NoThrow,
-                    ConstIgnoringErrnoAndExceptions];
+  let Attributes = [FunctionWithBuiltinPrefix, NoThrow, 
ConstIgnoringErrnoAndExceptions];
   let Prototype = "__float128(__float128, __float128)";
 }
 
 def ILogbF128 : Builtin {
   let Spellings = ["__builtin_ilogbf128"];
-  let Attributes = [FunctionWithBuiltinPrefix, NoThrow,
-                    ConstIgnoringErrnoAndExceptions];
+  let Attributes = [FunctionWithBuiltinPrefix, NoThrow, 
ConstIgnoringErrnoAndExceptions];
   let Prototype = "int(__float128)";
 }
 
@@ -372,64 +359,55 @@ def LgammaF128 : Builtin {
 
 def LLrintF128 : Builtin {
   let Spellings = ["__builtin_llrintf128"];
-  let Attributes = [FunctionWithBuiltinPrefix, NoThrow,
-                    ConstIgnoringErrnoAndExceptions];
+  let Attributes = [FunctionWithBuiltinPrefix, NoThrow, 
ConstIgnoringErrnoAndExceptions];
   let Prototype = "long long int(__float128)";
 }
 
 def LLroundF128 : Builtin {
   let Spellings = ["__builtin_llroundf128"];
-  let Attributes = [FunctionWithBuiltinPrefix, NoThrow,
-                    ConstIgnoringErrnoAndExceptions];
+  let Attributes = [FunctionWithBuiltinPrefix, NoThrow, 
ConstIgnoringErrnoAndExceptions];
   let Prototype = "long long int(__float128)";
 }
 
 def Log10F16F128 : Builtin, F16F128MathTemplate {
   let Spellings = ["__builtin_log10"];
-  let Attributes = [FunctionWithBuiltinPrefix, NoThrow,
-                    ConstIgnoringErrnoAndExceptions];
+  let Attributes = [FunctionWithBuiltinPrefix, NoThrow, 
ConstIgnoringErrnoAndExceptions];
   let Prototype = "T(T)";
 }
 
 def Log1pF128 : Builtin {
   let Spellings = ["__builtin_log1pf128"];
-  let Attributes = [FunctionWithBuiltinPrefix, NoThrow,
-                    ConstIgnoringErrnoAndExceptions];
+  let Attributes = [FunctionWithBuiltinPrefix, NoThrow, 
ConstIgnoringErrnoAndExceptions];
   let Prototype = "__float128(__float128)";
 }
 
 def Log2F16F128 : Builtin, F16F128MathTemplate {
   let Spellings = ["__builtin_log2"];
-  let Attributes = [FunctionWithBuiltinPrefix, NoThrow,
-                    ConstIgnoringErrnoAndExceptions];
+  let Attributes = [FunctionWithBuiltinPrefix, NoThrow, 
ConstIgnoringErrnoAndExceptions];
   let Prototype = "T(T)";
 }
 
 def LogbF128 : Builtin {
   let Spellings = ["__builtin_logbf128"];
-  let Attributes = [FunctionWithBuiltinPrefix, NoThrow,
-                    ConstIgnoringErrnoAndExceptions];
+  let Attributes = [FunctionWithBuiltinPrefix, NoThrow, 
ConstIgnoringErrnoAndExceptions];
   let Prototype = "__float128(__float128)";
 }
 
 def LogF16F128 : Builtin, F16F128MathTemplate {
   let Spellings = ["__builtin_log"];
-  let Attributes = [FunctionWithBuiltinPrefix, NoThrow,
-                    ConstIgnoringErrnoAndExceptions];
+  let Attributes = [FunctionWithBuiltinPrefix, NoThrow, 
ConstIgnoringErrnoAndExceptions];
   let Prototype = "T(T)";
 }
 
 def LrintF128 : Builtin {
   let Spellings = ["__builtin_lrintf128"];
-  let Attributes = [FunctionWithBuiltinPrefix, NoThrow,
-                    ConstIgnoringErrnoAndExceptions];
+  let Attributes = [FunctionWithBuiltinPrefix, NoThrow, 
ConstIgnoringErrnoAndExceptions];
   let Prototype = "long int(__float128)";
 }
 
 def LroundF128 : Builtin {
   let Spellings = ["__builtin_lroundf128"];
-  let Attributes = [FunctionWithBuiltinPrefix, NoThrow,
-                    ConstIgnoringErrnoAndExceptions];
+  let Attributes = [FunctionWithBuiltinPrefix, NoThrow, 
ConstIgnoringErrnoAndExceptions];
   let Prototype = "long int(__float128)";
 }
 
@@ -441,22 +419,19 @@ def NearbyintF128 : Builtin {
 
 def NextafterF128 : Builtin {
   let Spellings = ["__builtin_nextafterf128"];
-  let Attributes = [FunctionWithBuiltinPrefix, NoThrow,
-                    ConstIgnoringErrnoAndExceptions];
+  let Attributes = [FunctionWithBuiltinPrefix, NoThrow, 
ConstIgnoringErrnoAndExceptions];
   let Prototype = "__float128(__float128, __float128)";
 }
 
 def NexttowardF128 : Builtin {
   let Spellings = ["__builtin_nexttowardf128"];
-  let Attributes = [FunctionWithBuiltinPrefix, NoThrow,
-                    ConstIgnoringErrnoAndExceptions];
+  let Attributes = [FunctionWithBuiltinPrefix, NoThrow, 
ConstIgnoringErrnoAndExceptions];
   let Prototype = "__float128(__float128, __float128)";
 }
 
 def RemainderF128 : Builtin {
   let Spellings = ["__builtin_remainderf128"];
-  let Attributes = [FunctionWithBuiltinPrefix, NoThrow,
-                    ConstIgnoringErrnoAndExceptions];
+  let Attributes = [FunctionWithBuiltinPrefix, NoThrow, 
ConstIgnoringErrnoAndExceptions];
   let Prototype = "__float128(__float128, __float128)";
 }
 
@@ -695,13 +670,15 @@ def Signbit : Builtin {
 
 def SignbitF : Builtin {
   let Spellings = ["__builtin_signbitf"];
-  let Attributes = [FunctionWithBuiltinPrefix, NoThrow, Const, Constexpr];
+  let Attributes = [FunctionWithBuiltinPrefix, NoThrow, Const,
+                    Constexpr];
   let Prototype = "int(float)";
 }
 
 def SignbitL : Builtin {
   let Spellings = ["__builtin_signbitl"];
-  let Attributes = [FunctionWithBuiltinPrefix, NoThrow, Const, Constexpr];
+  let Attributes = [FunctionWithBuiltinPrefix, NoThrow, Const,
+                    Constexpr];
   let Prototype = "int(long double)";
 }
 
@@ -771,9 +748,8 @@ def Clrsb : Builtin, BitInt_Long_LongLongTemplate {
 // there exists native types on the target that are 32- and 64-bits wide, 
unless
 // these conditions are fulfilled these builtins will operate on a not intended
 // bitwidth.
-def BSwap
-    : Builtin,
-      Template<["unsigned short", "uint32_t", "uint64_t"], ["16", "32", "64"]> 
{
+def BSwap : Builtin, Template<["unsigned short", "uint32_t", "uint64_t"],
+                              ["16",             "32",       "64"]> {
   let Spellings = ["__builtin_bswap"];
   let Attributes = [NoThrow, Const, Constexpr];
   let Prototype = "T(T)";
@@ -847,15 +823,13 @@ def BuiltinCalloc : Builtin {
 
 def BuiltinConstantP : Builtin {
   let Spellings = ["__builtin_constant_p"];
-  let Attributes = [NoThrow, Const, CustomTypeChecking, UnevaluatedArguments,
-                    Constexpr];
+  let Attributes = [NoThrow, Const, CustomTypeChecking, UnevaluatedArguments, 
Constexpr];
   let Prototype = "int(...)";
 }
 
 def BuiltinClassifyType : Builtin {
   let Spellings = ["__builtin_classify_type"];
-  let Attributes = [NoThrow, Const, CustomTypeChecking, UnevaluatedArguments,
-                    Constexpr];
+  let Attributes = [NoThrow, Const, CustomTypeChecking, UnevaluatedArguments, 
Constexpr];
   let Prototype = "int(...)";
 }
 
@@ -1159,8 +1133,7 @@ def StpncpyChk : Builtin {
 def SNPrintfChk : Builtin {
   let Spellings = ["__builtin___snprintf_chk"];
   let Attributes = [FunctionWithBuiltinPrefix, PrintfFormat<4>];
-  let Prototype =
-      "int(char* restrict, size_t, int, size_t, char const* restrict, ...)";
+  let Prototype = "int(char* restrict, size_t, int, size_t, char const* 
restrict, ...)";
 }
 
 def SPrintfChk : Builtin {
@@ -1172,15 +1145,13 @@ def SPrintfChk : Builtin {
 def VSNPrintfChk : Builtin {
   let Spellings = ["__builtin___vsnprintf_chk"];
   let Attributes = [FunctionWithBuiltinPrefix, VPrintfFormat<4>];
-  let Prototype = "int(char* restrict, size_t, int, size_t, char const* "
-                  "restrict, __builtin_va_list)";
+  let Prototype = "int(char* restrict, size_t, int, size_t, char const* 
restrict, __builtin_va_list)";
 }
 
 def VSPrintfChk : Builtin {
   let Spellings = ["__builtin___vsprintf_chk"];
   let Attributes = [FunctionWithBuiltinPrefix, VPrintfFormat<3>];
-  let Prototype = "int(char* restrict, int, size_t, char const* restrict, "
-                  "__builtin_va_list)";
+  let Prototype = "int(char* restrict, int, size_t, char const* restrict, 
__builtin_va_list)";
 }
 
 def FPrintfChk : Builtin {
@@ -1198,8 +1169,7 @@ def PrintfChk : Builtin {
 def VFPrintfChk : Builtin {
   let Spellings = ["__builtin___vfprintf_chk"];
   let Attributes = [FunctionWithBuiltinPrefix, VPrintfFormat<2>];
-  let Prototype =
-      "int(FILE* restrict, int, char const* restrict, __builtin_va_list)";
+  let Prototype = "int(FILE* restrict, int, char const* restrict, 
__builtin_va_list)";
 }
 
 def VPrintfChk : Builtin {
@@ -2565,8 +2535,7 @@ def SyncFetchAndUMax : Builtin {
   let Prototype = "unsigned int(unsigned int volatile*, unsigned int)";
 }
 
-// ignored glibc builtin, see
-// https://sourceware.org/bugzilla/show_bug.cgi?id=25399
+// ignored glibc builtin, see 
https://sourceware.org/bugzilla/show_bug.cgi?id=25399
 def WarnMemsetZeroLen : Builtin {
   let Spellings = ["__warn_memset_zero_len"];
   let Attributes = [NoThrow, Pure];
@@ -2616,10 +2585,9 @@ def BittestAndSet : MSLangBuiltin, MSInt32_64Template {
   let Prototype = "unsigned char(T*, T)";
 }
 
-def MSByteswap
-    : MSLibBuiltin<"stdlib.h">,
-      Template<["unsigned short", "msuint32_t", "unsigned long long int"],
-               ["_ushort", "_ulong", "_uint64"]> {
+def MSByteswap : MSLibBuiltin<"stdlib.h">,
+    Template<["unsigned short", "msuint32_t", "unsigned long long int"],
+             ["_ushort",        "_ulong",     "_uint64"]> {
   let Spellings = ["_byteswap"];
   let Attributes = [NoThrow, Const];
   let Prototype = "T(T)";
@@ -3230,24 +3198,21 @@ def VPrintf : LibBuiltin<"stdio.h"> {
 def VfPrintf : LibBuiltin<"stdio.h"> {
   let Spellings = ["vfprintf"];
   let Attributes = [NoThrow, VPrintfFormat<1>, NonNull<NonOptimizing, [0, 1]>];
-  let Prototype =
-      "int(FILE* restrict, char const* restrict, __builtin_va_list)";
+  let Prototype = "int(FILE* restrict, char const* restrict, 
__builtin_va_list)";
   let AddBuiltinPrefixedAlias = 1;
 }
 
 def VsnPrintf : LibBuiltin<"stdio.h"> {
   let Spellings = ["vsnprintf"];
   let Attributes = [NoThrow, VPrintfFormat<2>, NonNull<NonOptimizing, [2]>];
-  let Prototype =
-      "int(char* restrict, size_t, char const* restrict, __builtin_va_list)";
+  let Prototype = "int(char* restrict, size_t, char const* restrict, 
__builtin_va_list)";
   let AddBuiltinPrefixedAlias = 1;
 }
 
 def VsPrintf : LibBuiltin<"stdio.h"> {
   let Spellings = ["vsprintf"];
   let Attributes = [NoThrow, VPrintfFormat<1>, NonNull<NonOptimizing, [0, 1]>];
-  let Prototype =
-      "int(char* restrict, char const* restrict, __builtin_va_list)";
+  let Prototype = "int(char* restrict, char const* restrict, 
__builtin_va_list)";
   let AddBuiltinPrefixedAlias = 1;
 }
 
@@ -3282,16 +3247,14 @@ def VScanf : LibBuiltin<"stdio.h"> {
 def VFScanf : LibBuiltin<"stdio.h"> {
   let Spellings = ["vfscanf"];
   let Attributes = [VScanfFormat<1>, NonNull<NonOptimizing, [0, 1]>];
-  let Prototype =
-      "int(FILE* restrict, char const* restrict, __builtin_va_list)";
+  let Prototype = "int(FILE* restrict, char const* restrict, 
__builtin_va_list)";
   let AddBuiltinPrefixedAlias = 1;
 }
 
 def VSScanf : LibBuiltin<"stdio.h"> {
   let Spellings = ["vsscanf"];
   let Attributes = [VScanfFormat<1>, NonNull<NonOptimizing, [0, 1]>];
-  let Prototype =
-      "int(char const* restrict, char const* restrict, __builtin_va_list)";
+  let Prototype = "int(char const* restrict, char const* restrict, 
__builtin_va_list)";
   let AddBuiltinPrefixedAlias = 1;
 }
 
@@ -4511,9 +4474,11 @@ def AssumeSeparateStorage : Builtin {
 
 // Multiprecision Arithmetic Builtins.
 
-class MPATemplate : Template<["unsigned char", "unsigned short", "unsigned 
int",
-                              "unsigned long int", "unsigned long long int"],
-                             ["b", "s", "", "l", "ll"]>;
+class MPATemplate : Template<
+    ["unsigned char",     "unsigned short",        "unsigned int",
+     "unsigned long int", "unsigned long long int"],
+    ["b",                 "s",                     "",
+     "l",                 "ll"]>;
 
 def Addc : Builtin, MPATemplate {
   let Spellings = ["__builtin_addc"];
@@ -4548,9 +4513,9 @@ def MulOverflow : Builtin {
   let Prototype = "bool(...)";
 }
 
-class UOverflowTemplate
-    : Template<["unsigned int", "unsigned long int", "unsigned long long int"],
-               ["_overflow", "l_overflow", "ll_overflow"]>;
+class UOverflowTemplate :
+    Template<["unsigned int", "unsigned long int", "unsigned long long int"],
+             ["_overflow",    "l_overflow",        "ll_overflow"]>;
 
 def UaddOverflow : Builtin, UOverflowTemplate {
   let Spellings = ["__builtin_uadd"];
@@ -4570,9 +4535,9 @@ def UmulOverflow : Builtin, UOverflowTemplate {
   let Prototype = "bool(T const, T const, T*)";
 }
 
-class SOverflowTemplate
-    : Template<["int", "long int", "long long int"], ["_overflow", 
"l_overflow",
-                                                      "ll_overflow"]>;
+class SOverflowTemplate :
+    Template<["int",          "long int",          "long long int"],
+             ["_overflow",    "l_overflow",        "ll_overflow"]>;
 
 def SaddOverflow : Builtin, SOverflowTemplate {
   let Spellings = ["__builtin_sadd"];
@@ -4832,8 +4797,7 @@ def PtrauthStringDiscriminator : Builtin {
 // AllocToken builtins.
 def InferAllocToken : Builtin {
   let Spellings = ["__builtin_infer_alloc_token"];
-  let Attributes = [NoThrow, Const, Pure, CustomTypeChecking, Constexpr,
-                    UnevaluatedArguments];
+  let Attributes = [NoThrow, Const, Pure, CustomTypeChecking, Constexpr, 
UnevaluatedArguments];
   let Prototype = "size_t(...)";
 }
 
@@ -4936,8 +4900,7 @@ def GetPipeMaxPackets : OCLPipeLangBuiltin {
 }
 
 // OpenCL v2.0 s6.13.17 - Enqueue kernel functions.
-// Custom builtin check allows to perform special check of passed block
-// arguments.
+// Custom builtin check allows to perform special check of passed block 
arguments.
 def EnqueueKernel : OCL_DSELangBuiltin {
   let Spellings = ["enqueue_kernel"];
   let Attributes = [CustomTypeChecking, NoThrow];
@@ -5025,7 +4988,7 @@ def GetDeviceSideMangledName : LangBuiltin<"CUDA_LANG"> {
 }
 
 // HLSL
-def HLSLAddUint64 : LangBuiltin<"HLSL_LANG"> {
+def HLSLAddUint64: LangBuiltin<"HLSL_LANG"> {
   let Spellings = ["__builtin_hlsl_adduint64"];
   let Attributes = [NoThrow, Const];
   let Prototype = "void(...)";
@@ -5070,15 +5033,13 @@ def HLSLResourceUninitializedHandle : 
LangBuiltin<"HLSL_LANG"> {
 def HLSLResourceHandleFromBinding : LangBuiltin<"HLSL_LANG"> {
   let Spellings = ["__builtin_hlsl_resource_handlefrombinding"];
   let Attributes = [NoThrow];
-  let Prototype = "__hlsl_resource_t(__hlsl_resource_t, uint32_t, uint32_t, "
-                  "int32_t, uint32_t, char const*)";
+  let Prototype = "__hlsl_resource_t(__hlsl_resource_t, uint32_t, uint32_t, 
int32_t, uint32_t, char const*)";
 }
 
 def HLSLResourceHandleFromImplicitBinding : LangBuiltin<"HLSL_LANG"> {
   let Spellings = ["__builtin_hlsl_resource_handlefromimplicitbinding"];
   let Attributes = [NoThrow];
-  let Prototype = "__hlsl_resource_t(__hlsl_resource_t, uint32_t, uint32_t, "
-                  "int32_t, uint32_t, char const*)";
+  let Prototype = "__hlsl_resource_t(__hlsl_resource_t, uint32_t, uint32_t, 
int32_t, uint32_t, char const*)";
 }
 
 def HLSLResourceCounterHandleFromImplicitBinding : LangBuiltin<"HLSL_LANG"> {
@@ -5147,12 +5108,6 @@ def HLSLWaveActiveAnyTrue : LangBuiltin<"HLSL_LANG"> {
   let Prototype = "bool(bool)";
 }
 
-def HLSLWaveActiveBitOr : LangBuiltin<"HLSL_LANG"> {
-  let Spellings = ["__builtin_hlsl_wave_active_bit_or"];
-  let Attributes = [NoThrow, Const];
-  let Prototype = "unsigned int (unsigned int)";
-}
-
 def HLSLWaveActiveBallot : LangBuiltin<"HLSL_LANG"> {
   let Spellings = ["__builtin_hlsl_wave_active_ballot"];
   let Attributes = [NoThrow, Const];
@@ -5225,18 +5180,16 @@ def HLSLClamp : LangBuiltin<"HLSL_LANG"> {
   let Prototype = "void(...)";
 }
 
-def HLSLCrossFloat : LangBuiltin<"HLSL_LANG"> {
+def HLSLCrossFloat: LangBuiltin<"HLSL_LANG"> {
   let Spellings = ["__builtin_hlsl_crossf32"];
   let Attributes = [NoThrow, Const];
-  let Prototype =
-      "_ExtVector<3, float>(_ExtVector<3, float>, _ExtVector<3, float>)";
+  let Prototype = "_ExtVector<3, float>(_ExtVector<3, float>, _ExtVector<3, 
float>)";
 }
 
-def HLSLCrossHalf : LangBuiltin<"HLSL_LANG"> {
+def HLSLCrossHalf: LangBuiltin<"HLSL_LANG"> {
   let Spellings = ["__builtin_hlsl_crossf16"];
   let Attributes = [NoThrow, Const];
-  let Prototype =
-      "_ExtVector<3, __fp16>(_ExtVector<3, __fp16>, _ExtVector<3, __fp16>)";
+  let Prototype = "_ExtVector<3, __fp16>(_ExtVector<3, __fp16>, _ExtVector<3, 
__fp16>)";
 }
 
 def HLSLDegrees : LangBuiltin<"HLSL_LANG"> {
@@ -5341,7 +5294,7 @@ def HLSLSign : LangBuiltin<"HLSL_LANG"> {
   let Prototype = "void(...)";
 }
 
-def HLSLStep : LangBuiltin<"HLSL_LANG"> {
+def HLSLStep: LangBuiltin<"HLSL_LANG"> {
   let Spellings = ["__builtin_hlsl_step"];
   let Attributes = [NoThrow, Const];
   let Prototype = "void(...)";
@@ -5359,19 +5312,19 @@ def HLSLBufferUpdateCounter : LangBuiltin<"HLSL_LANG"> {
   let Prototype = "uint32_t(__hlsl_resource_t, int)";
 }
 
-def HLSLSplitDouble : LangBuiltin<"HLSL_LANG"> {
+def HLSLSplitDouble: LangBuiltin<"HLSL_LANG"> {
   let Spellings = ["__builtin_hlsl_elementwise_splitdouble"];
   let Attributes = [NoThrow, Const];
   let Prototype = "void(...)";
 }
 
-def HLSLClip : LangBuiltin<"HLSL_LANG"> {
+def HLSLClip: LangBuiltin<"HLSL_LANG"> {
   let Spellings = ["__builtin_hlsl_elementwise_clip"];
   let Attributes = [NoThrow, Const, CustomTypeChecking];
   let Prototype = "void(...)";
 }
 
-def HLSLGroupMemoryBarrierWithGroupSync : LangBuiltin<"HLSL_LANG"> {
+def HLSLGroupMemoryBarrierWithGroupSync: LangBuiltin<"HLSL_LANG"> {
   let Spellings = ["__builtin_hlsl_group_memory_barrier_with_group_sync"];
   let Attributes = [NoThrow, Const];
   let Prototype = "void()";

>From 2871282909e5afe5772462476c4df58a4fd4c43b Mon Sep 17 00:00:00 2001
From: KungFuDonkey <[email protected]>
Date: Sat, 7 Feb 2026 13:43:16 +0100
Subject: [PATCH 13/13] Cleared failing spv check and added BitOr builtin again

---
 clang/include/clang/Basic/Builtins.td              |  6 ++++++
 llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp | 12 ++++++++++--
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/clang/include/clang/Basic/Builtins.td 
b/clang/include/clang/Basic/Builtins.td
index 05e3af4a0e96f..e8777bb7f85ce 100644
--- a/clang/include/clang/Basic/Builtins.td
+++ b/clang/include/clang/Basic/Builtins.td
@@ -5108,6 +5108,12 @@ def HLSLWaveActiveAnyTrue : LangBuiltin<"HLSL_LANG"> {
   let Prototype = "bool(bool)";
 }
 
+def HLSLWaveActiveBitOr : LangBuiltin<"HLSL_LANG"> {
+  let Spellings = ["__builtin_hlsl_wave_active_bit_or"];
+  let Attributes = [NoThrow, Const];
+  let Prototype = "void (...)";
+}
+
 def HLSLWaveActiveBallot : LangBuiltin<"HLSL_LANG"> {
   let Spellings = ["__builtin_hlsl_wave_active_ballot"];
   let Attributes = [NoThrow, Const];
diff --git a/llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp 
b/llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp
index 1c91c37ffdfd5..6ccdb2b09cde2 100644
--- a/llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp
+++ b/llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp
@@ -2920,6 +2920,15 @@ bool SPIRVInstructionSelector::selectWaveReduce(
   return true;
 }
 
+bool SPIRVInstructionSelector::selectWaveReduceOp(Register ResVReg,
+                                                  const SPIRVType *ResType,
+                                                  MachineInstr &I,
+                                                  unsigned Opcode) {
+  return selectWaveReduceOp(
+      ResVReg, ResType, I, false,
+      [&](Register InputRegister, bool IsUnsigned) { return Opcode; });
+}
+
 bool SPIRVInstructionSelector::selectWaveExclusiveScanSum(
     Register ResVReg, const SPIRVType *ResType, MachineInstr &I) const {
   return selectWaveExclusiveScan(ResVReg, ResType, I, /*IsUnsigned*/ false,
@@ -4055,8 +4064,7 @@ bool SPIRVInstructionSelector::selectIntrinsic(Register 
ResVReg,
   case Intrinsic::spv_wave_is_first_lane:
     return selectWaveOpInst(ResVReg, ResType, I, 
SPIRV::OpGroupNonUniformElect);
   case Intrinsic::spv_wave_reduce_or:
-    return selectWaveOpInst(ResVReg, ResType, I,
-                            SPIRV::OpGroupNonUniformBitwiseOr);
+    return selectWaveReduceOp(ResVReg, ResType, I, 
SPIRV::OpGroupNonUniformBitwiseOr);
   case Intrinsic::spv_wave_reduce_umax:
     return selectWaveReduceMax(ResVReg, ResType, I, /*IsUnsigned*/ true);
   case Intrinsic::spv_wave_reduce_max:

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