================
@@ -0,0 +1,46 @@
+// 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_int
+int test_int(int expr) {
+ // CHECK-SPIRV: %[[RET:.*]] = call spir_func [[TY:.*]]
@llvm.spv.wave.reduce.max.i32([[TY]] %[[#]])
+ // CHECK-DXIL: %[[RET:.*]] = call [[TY:.*]]
@llvm.dx.wave.reduce.max.i32([[TY]] %[[#]])
+ // CHECK: ret [[TY]] %[[RET]]
+ return WaveActiveMax(expr);
+}
+
+// CHECK-DXIL: declare [[TY]] @llvm.dx.wave.reduce.max.i32([[TY]]) #[[#attr:]]
+// CHECK-SPIRV: declare spir_func [[TY]] @llvm.spv.wave.reduce.max.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.umax.i64([[TY]] %[[#]])
+ // CHECK-DXIL: %[[RET:.*]] = call [[TY:.*]]
@llvm.dx.wave.reduce.umax.i64([[TY]] %[[#]])
+ // CHECK: ret [[TY]] %[[RET]]
+ return WaveActiveMax(expr);
+}
+
+// CHECK-DXIL: declare [[TY]] @llvm.dx.wave.reduce.umax.i64([[TY]]) #[[#attr:]]
+// CHECK-SPIRV: declare spir_func [[TY]]
@llvm.spv.wave.reduce.umax.i64([[TY]]) #[[#attr:]]
+
+// Test basic lowering to runtime function call with array and float value.
+
+// CHECK-LABEL: test_floatv4
+float4 test_floatv4(float4 expr) {
+ // CHECK-SPIRV: %[[RET1:.*]] = call reassoc nnan ninf nsz arcp afn
spir_func [[TY1:.*]] @llvm.spv.wave.reduce.max.v4f32([[TY1]] %[[#]]
+ // CHECK-DXIL: %[[RET1:.*]] = call reassoc nnan ninf nsz arcp afn
[[TY1:.*]] @llvm.dx.wave.reduce.max.v4f32([[TY1]] %[[#]])
+ // CHECK: ret [[TY1]] %[[RET1]]
+ return WaveActiveMax(expr);
+}
+
+// CHECK-DXIL: declare [[TY1]] @llvm.dx.wave.reduce.max.v4f32([[TY1]])
#[[#attr]]
+// CHECK-SPIRV: declare spir_func [[TY1]]
@llvm.spv.wave.reduce.max.v4f32([[TY1]]) #[[#attr]]
+
+// CHECK: attributes #[[#attr]] = {{{.*}} convergent {{.*}}}
+
----------------
V-FEXrt wrote:
oh wait nvm, I got confused. This is the post function stuff I think
https://github.com/llvm/llvm-project/pull/123428
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