https://github.com/chandraghale created
https://github.com/llvm/llvm-project/pull/121916
Added codegen support for combined masked constructs `masked taskloop simd`.
Added implementation for `EmitOMPMaskedTaskLoopSimdDirective`.
>From 7d03bd61553690f22c03b52ef2bda8a09938e7a1 Mon Sep 17 00:00:00 2001
From: Chandra Ghale <gh...@pe31.hpc.amslabs.hpecorp.net>
Date: Tue, 7 Jan 2025 05:09:21 -0600
Subject: [PATCH] codegen support for masked combined construct masked taskloop
simd
---
clang/lib/CodeGen/CGStmt.cpp | 3 +-
clang/lib/CodeGen/CGStmtOpenMP.cpp | 12 +++++
clang/lib/CodeGen/CodeGenFunction.h | 2 +
.../OpenMP/masked_taskloop_simd_codegen.c | 49 +++++++++++++++++++
4 files changed, 65 insertions(+), 1 deletion(-)
create mode 100644 clang/test/OpenMP/masked_taskloop_simd_codegen.c
diff --git a/clang/lib/CodeGen/CGStmt.cpp b/clang/lib/CodeGen/CGStmt.cpp
index 3974739d2abb47..496a626f3be598 100644
--- a/clang/lib/CodeGen/CGStmt.cpp
+++ b/clang/lib/CodeGen/CGStmt.cpp
@@ -338,7 +338,8 @@ void CodeGenFunction::EmitStmt(const Stmt *S,
ArrayRef<const Attr *> Attrs) {
cast<OMPMasterTaskLoopSimdDirective>(*S));
break;
case Stmt::OMPMaskedTaskLoopSimdDirectiveClass:
- llvm_unreachable("masked taskloop simd directive not supported yet.");
+ EmitOMPMaskedTaskLoopSimdDirective(
+ cast<OMPMaskedTaskLoopSimdDirective>(*S));
break;
case Stmt::OMPParallelMasterTaskLoopDirectiveClass:
EmitOMPParallelMasterTaskLoopDirective(
diff --git a/clang/lib/CodeGen/CGStmtOpenMP.cpp
b/clang/lib/CodeGen/CGStmtOpenMP.cpp
index 6cb37b20b7aeee..fa3a82dad003b9 100644
--- a/clang/lib/CodeGen/CGStmtOpenMP.cpp
+++ b/clang/lib/CodeGen/CGStmtOpenMP.cpp
@@ -8006,6 +8006,18 @@ void CodeGenFunction::EmitOMPMasterTaskLoopSimdDirective(
CGM.getOpenMPRuntime().emitMasterRegion(*this, CodeGen, S.getBeginLoc());
}
+void CodeGenFunction::EmitOMPMaskedTaskLoopSimdDirective(
+ const OMPMaskedTaskLoopSimdDirective &S) {
+ auto &&CodeGen = [this, &S](CodeGenFunction &CGF, PrePostActionTy &Action) {
+ Action.Enter(CGF);
+ EmitOMPTaskLoopBasedDirective(S);
+ };
+ auto LPCRegion =
+ CGOpenMPRuntime::LastprivateConditionalRAII::disable(*this, S);
+ OMPLexicalScope Scope(*this, S);
+ CGM.getOpenMPRuntime().emitMaskedRegion(*this, CodeGen, S.getBeginLoc());
+}
+
void CodeGenFunction::EmitOMPParallelMasterTaskLoopDirective(
const OMPParallelMasterTaskLoopDirective &S) {
auto &&CodeGen = [this, &S](CodeGenFunction &CGF, PrePostActionTy &Action) {
diff --git a/clang/lib/CodeGen/CodeGenFunction.h
b/clang/lib/CodeGen/CodeGenFunction.h
index 1a5c42f8f974d0..aa08985351f811 100644
--- a/clang/lib/CodeGen/CodeGenFunction.h
+++ b/clang/lib/CodeGen/CodeGenFunction.h
@@ -3865,6 +3865,8 @@ class CodeGenFunction : public CodeGenTypeCache {
void EmitOMPMasterTaskLoopDirective(const OMPMasterTaskLoopDirective &S);
void
EmitOMPMasterTaskLoopSimdDirective(const OMPMasterTaskLoopSimdDirective &S);
+ void
+ EmitOMPMaskedTaskLoopSimdDirective(const OMPMaskedTaskLoopSimdDirective &S);
void EmitOMPParallelMasterTaskLoopDirective(
const OMPParallelMasterTaskLoopDirective &S);
void EmitOMPParallelMasterTaskLoopSimdDirective(
diff --git a/clang/test/OpenMP/masked_taskloop_simd_codegen.c
b/clang/test/OpenMP/masked_taskloop_simd_codegen.c
new file mode 100644
index 00000000000000..f786bc582beb20
--- /dev/null
+++ b/clang/test/OpenMP/masked_taskloop_simd_codegen.c
@@ -0,0 +1,49 @@
+// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py
UTC_ARGS: --include-generated-funcs --prefix-filecheck-ir-name _ --version 5
+// RUN: %clang_cc1 -triple x86_64-unknown-unknown -fopenmp -fopenmp-version=52
-x c -emit-llvm %s -o - | FileCheck %s
+// expected-no-diagnostics
+#define N 100
+void masked_taskloop_simd(){
+ #pragma omp masked taskloop simd
+ for( int i = 0; i < N; i++)
+ ;
+
+}
+
+int main()
+{
+ masked_taskloop_simd();
+}
+// CHECK-LABEL: define dso_local void @masked_taskloop_simd(
+// CHECK-SAME: ) #[[ATTR0:[0-9]+]] {
+// CHECK-NEXT: [[ENTRY:.*:]]
+// CHECK-NEXT: [[AGG_CAPTURED:%.*]] = alloca [[STRUCT_ANON:%.*]], align 1
+// CHECK-NEXT: [[TMP:%.*]] = alloca i32, align 4
+// CHECK-NEXT: [[TMP0:%.*]] = call i32 @__kmpc_global_thread_num(ptr
@[[GLOB1:[0-9]+]])
+// CHECK-NEXT: [[TMP1:%.*]] = call i32 @__kmpc_masked(ptr @[[GLOB1]], i32
[[TMP0]], i32 0)
+// CHECK-NEXT: [[TMP2:%.*]] = icmp ne i32 [[TMP1]], 0
+// CHECK-NEXT: br i1 [[TMP2]], label %[[OMP_IF_THEN:.*]], label
%[[OMP_IF_END:.*]]
+// CHECK: [[OMP_IF_THEN]]:
+// CHECK-NEXT: call void @__kmpc_taskgroup(ptr @[[GLOB1]], i32 [[TMP0]])
+// CHECK-NEXT: [[TMP3:%.*]] = call ptr @__kmpc_omp_task_alloc(ptr
@[[GLOB1]], i32 [[TMP0]], i32 1, i64 80, i64 0, ptr @.omp_task_entry.)
+// CHECK-NEXT: [[TMP4:%.*]] = getelementptr inbounds nuw
[[STRUCT_KMP_TASK_T_WITH_PRIVATES:%.*]], ptr [[TMP3]], i32 0, i32 0
+// CHECK-NEXT: [[TMP5:%.*]] = getelementptr inbounds nuw
[[STRUCT_KMP_TASK_T:%.*]], ptr [[TMP4]], i32 0, i32 5
+// CHECK-NEXT: store i64 0, ptr [[TMP5]], align 8
+// CHECK-NEXT: [[TMP6:%.*]] = getelementptr inbounds nuw
[[STRUCT_KMP_TASK_T]], ptr [[TMP4]], i32 0, i32 6
+// CHECK-NEXT: store i64 99, ptr [[TMP6]], align 8
+// CHECK-NEXT: [[TMP7:%.*]] = getelementptr inbounds nuw
[[STRUCT_KMP_TASK_T]], ptr [[TMP4]], i32 0, i32 7
+// CHECK-NEXT: store i64 1, ptr [[TMP7]], align 8
+// CHECK-NEXT: [[TMP8:%.*]] = getelementptr inbounds nuw
[[STRUCT_KMP_TASK_T]], ptr [[TMP4]], i32 0, i32 9
+// CHECK-NEXT: call void @llvm.memset.p0.i64(ptr align 8 [[TMP8]], i8 0,
i64 8, i1 false)
+// CHECK-NEXT: [[TMP9:%.*]] = load i64, ptr [[TMP7]], align 8
+// CHECK-NEXT: call void @__kmpc_taskloop(ptr @[[GLOB1]], i32 [[TMP0]], ptr
[[TMP3]], i32 1, ptr [[TMP5]], ptr [[TMP6]], i64 [[TMP9]], i32 1, i32 0, i64 0,
ptr null)
+// CHECK-NEXT: call void @__kmpc_end_taskgroup(ptr @[[GLOB1]], i32 [[TMP0]])
+// CHECK-NEXT: call void @__kmpc_end_masked(ptr @[[GLOB1]], i32 [[TMP0]])
+// CHECK-NEXT: br label %[[OMP_IF_END]]
+// CHECK: [[OMP_IF_END]]:
+// CHECK-NEXT: ret void
+//
+// CHECK-LABEL: define dso_local i32 @main(
+// CHECK-SAME: ) #[[ATTR0]] {
+// CHECK-NEXT: [[ENTRY:.*:]]
+// CHECK-NEXT: call void @masked_taskloop_simd()
+// CHECK-NEXT: ret i32 0
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