rogfer01 created this revision.
rogfer01 added reviewers: jdoerfert, kiranchandramohan.
Herald added subscribers: llvm-commits, cfe-commits, guansong, hiraditya.
Herald added projects: clang, LLVM.
rogfer01 added a parent revision: D69922: [OpenMP] Use the OpenMP-IR-Builder.
This is similar to D69828 <https://reviews.llvm.org/D69828>.
Special codegen for enclosing untied tasks is still done in clang.
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D70799
Files:
clang/lib/CodeGen/CGOpenMPRuntime.cpp
clang/test/OpenMP/taskyield_codegen.cpp
llvm/include/llvm/Frontend/OpenMPIRBuilder.h
llvm/include/llvm/Frontend/OpenMPKinds.def
llvm/lib/Frontend/OpenMPIRBuilder.cpp
Index: llvm/lib/Frontend/OpenMPIRBuilder.cpp
===================================================================
--- llvm/lib/Frontend/OpenMPIRBuilder.cpp
+++ llvm/lib/Frontend/OpenMPIRBuilder.cpp
@@ -272,3 +272,20 @@
return;
emitTaskwaitImpl(Loc);
}
+
+void OpenMPIRBuilder::emitTaskyieldImpl(const LocationDescription &Loc) {
+ // Build call __kmpc_omp_taskyield(loc, thread_id, 0);
+ Constant *SrcLocStr = getOrCreateSrcLocStr(Loc);
+ Value *Ident = getOrCreateIdent(SrcLocStr);
+ Constant *I32Null = ConstantInt::getNullValue(Int32);
+ Value *Args[] = {Ident, getOrCreateThreadID(Ident), I32Null};
+
+ Builder.CreateCall(getOrCreateRuntimeFunction(OMPRTL___kmpc_omp_taskyield),
+ Args);
+}
+
+void OpenMPIRBuilder::CreateTaskyield(const LocationDescription &Loc) {
+ if (!updateToLocation(Loc))
+ return;
+ emitTaskyieldImpl(Loc);
+}
Index: llvm/include/llvm/Frontend/OpenMPKinds.def
===================================================================
--- llvm/include/llvm/Frontend/OpenMPKinds.def
+++ llvm/include/llvm/Frontend/OpenMPKinds.def
@@ -168,6 +168,7 @@
__OMP_RTL(__kmpc_fork_call, true, Void, IdentPtr, Int32, ParallelTaskPtr)
__OMP_RTL(omp_get_thread_num, false, Int32, )
__OMP_RTL(__kmpc_omp_taskwait, false, Int32, IdentPtr, Int32)
+__OMP_RTL(__kmpc_omp_taskyield, false, Int32, IdentPtr, Int32, Int32)
#undef __OMP_RTL
#undef OMP_RTL
Index: llvm/include/llvm/Frontend/OpenMPIRBuilder.h
===================================================================
--- llvm/include/llvm/Frontend/OpenMPIRBuilder.h
+++ llvm/include/llvm/Frontend/OpenMPIRBuilder.h
@@ -78,6 +78,11 @@
/// \param Loc The location where the taskwait directive was encountered.
void CreateTaskwait(const LocationDescription& Loc);
+ /// Generator for '#omp taskyield'
+ ///
+ /// \param Loc The location where the taskyield directive was encountered.
+ void CreateTaskyield(const LocationDescription& Loc);
+
///}
private:
@@ -122,6 +127,11 @@
/// \param Loc The location at which the request originated and is fulfilled.
void emitTaskwaitImpl(const LocationDescription &Loc);
+ /// Generate a taskyield runtime call.
+ ///
+ /// \param Loc The location at which the request originated and is fulfilled.
+ void emitTaskyieldImpl(const LocationDescription &Loc);
+
/// Return the current thread ID.
///
/// \param Ident The ident (ident_t*) describing the query origin.
Index: clang/test/OpenMP/taskyield_codegen.cpp
===================================================================
--- clang/test/OpenMP/taskyield_codegen.cpp
+++ clang/test/OpenMP/taskyield_codegen.cpp
@@ -1,6 +1,10 @@
// RUN: %clang_cc1 -verify -fopenmp -x c++ -triple x86_64-unknown-unknown -emit-llvm %s -o - | FileCheck %s
// RUN: %clang_cc1 -fopenmp -x c++ -std=c++11 -triple x86_64-unknown-unknown -emit-pch -o %t %s
// RUN: %clang_cc1 -fopenmp -x c++ -triple x86_64-unknown-unknown -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s
+//
+// RUN: %clang_cc1 -verify -fopenmp -fopenmp-enable-irbuilder -x c++ -triple x86_64-unknown-unknown -emit-llvm %s -o - | FileCheck %s
+// RUN: %clang_cc1 -fopenmp -fopenmp-enable-irbuilder -x c++ -std=c++11 -triple x86_64-unknown-unknown -emit-pch -o %t %s
+// RUN: %clang_cc1 -fopenmp -fopenmp-enable-irbuilder -x c++ -triple x86_64-unknown-unknown -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s
// RUN: %clang_cc1 -verify -fopenmp-simd -x c++ -triple x86_64-unknown-unknown -emit-llvm %s -o - | FileCheck --check-prefix SIMD-ONLY0 %s
// RUN: %clang_cc1 -fopenmp-simd -x c++ -std=c++11 -triple x86_64-unknown-unknown -emit-pch -o %t %s
Index: clang/lib/CodeGen/CGOpenMPRuntime.cpp
===================================================================
--- clang/lib/CodeGen/CGOpenMPRuntime.cpp
+++ clang/lib/CodeGen/CGOpenMPRuntime.cpp
@@ -3247,11 +3247,18 @@
SourceLocation Loc) {
if (!CGF.HaveInsertPoint())
return;
- // Build call __kmpc_omp_taskyield(loc, thread_id, 0);
- llvm::Value *Args[] = {
- emitUpdateLocation(CGF, Loc), getThreadID(CGF, Loc),
- llvm::ConstantInt::get(CGM.IntTy, /*V=*/0, /*isSigned=*/true)};
- CGF.EmitRuntimeCall(createRuntimeFunction(OMPRTL__kmpc_omp_taskyield), Args);
+ llvm::OpenMPIRBuilder *OMPBuilder = CGF.CGM.getOpenMPIRBuilder();
+ if (OMPBuilder) {
+ OMPBuilder->CreateTaskyield(CGF.Builder);
+ } else {
+ // Build call __kmpc_omp_taskyield(loc, thread_id, 0);
+ llvm::Value *Args[] = {
+ emitUpdateLocation(CGF, Loc), getThreadID(CGF, Loc),
+ llvm::ConstantInt::get(CGM.IntTy, /*V=*/0, /*isSigned=*/true)};
+ CGF.EmitRuntimeCall(createRuntimeFunction(OMPRTL__kmpc_omp_taskyield),
+ Args);
+ }
+
if (auto *Region = dyn_cast_or_null<CGOpenMPRegionInfo>(CGF.CapturedStmtInfo))
Region->emitUntiedSwitch(CGF);
}
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