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[Clang][OpenMP] Switch to __kmpc_parallel_60 with strict parameter #171082

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Merged
kevinsala merged 5 commits into from
Dec 8, 2025
Merged

[Clang][OpenMP] Switch to __kmpc_parallel_60 with strict parameter #171082

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446fa26
[Clang][OpenMP] Switch to __kmpc_parallel_60 with nthreads strict par…
kevinsala Dec 8, 2025
4b3c8b9
Fix tests
kevinsala Dec 8, 2025
02f1770
Add comment
kevinsala Dec 8, 2025
760f0b8
Merge remote-tracking branch 'upstream/main' into parallel_60_with_st…
kevinsala Dec 8, 2025
5732e8a
Fix llvm unit test
kevinsala Dec 8, 2025
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6 changes: 4 additions & 2 deletions clang/lib/CodeGen/CGOpenMPRuntimeGPU.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1303,9 +1303,11 @@ void CGOpenMPRuntimeGPU::emitParallelCall(
ID,
Bld.CreateBitOrPointerCast(CapturedVarsAddrs.emitRawPointer(CGF),
CGF.VoidPtrPtrTy),
llvm::ConstantInt::get(CGM.SizeTy, CapturedVars.size())};
llvm::ConstantInt::get(CGM.SizeTy, CapturedVars.size()),
llvm::ConstantInt::get(CGF.Int32Ty, 0)};

CGF.EmitRuntimeCall(OMPBuilder.getOrCreateRuntimeFunction(
CGM.getModule(), OMPRTL___kmpc_parallel_51),
CGM.getModule(), OMPRTL___kmpc_parallel_60),
Args);
};

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6 changes: 3 additions & 3 deletions clang/test/OpenMP/amdgcn_target_device_vla.cpp
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Expand Up @@ -327,7 +327,7 @@ int main() {
// CHECK-NEXT: store ptr [[TMP1]], ptr [[TMP29]], align 8
// CHECK-NEXT: [[TMP30:%.*]] = load ptr, ptr [[DOTGLOBAL_TID__ADDR_ASCAST]], align 8
// CHECK-NEXT: [[TMP31:%.*]] = load i32, ptr [[TMP30]], align 4
// CHECK-NEXT: call void @__kmpc_parallel_51(ptr addrspacecast (ptr addrspace(1) @[[GLOB1]] to ptr), i32 [[TMP31]], i32 1, i32 -1, i32 -1, ptr @{{__omp_offloading_[0-9a-z]+_[0-9a-z]+}}__Z4foo2v_l30_omp_outlined_omp_outlined, ptr null, ptr [[CAPTURED_VARS_ADDRS_ASCAST]], i64 5)
// CHECK-NEXT: call void @__kmpc_parallel_60(ptr addrspacecast (ptr addrspace(1) @[[GLOB1]] to ptr), i32 [[TMP31]], i32 1, i32 -1, i32 -1, ptr @{{__omp_offloading_[0-9a-z]+_[0-9a-z]+}}__Z4foo2v_l30_omp_outlined_omp_outlined, ptr null, ptr [[CAPTURED_VARS_ADDRS_ASCAST]], i64 5, i32 0)
// CHECK-NEXT: br label [[OMP_INNER_FOR_INC:%.*]]
// CHECK: omp.inner.for.inc:
// CHECK-NEXT: [[TMP32:%.*]] = load i32, ptr [[DOTOMP_IV_ASCAST]], align 4
Expand Down Expand Up @@ -701,7 +701,7 @@ int main() {
// CHECK-NEXT: store ptr [[A]], ptr [[TMP27]], align 8
// CHECK-NEXT: [[TMP28:%.*]] = load ptr, ptr [[DOTGLOBAL_TID__ADDR_ASCAST]], align 8
// CHECK-NEXT: [[TMP29:%.*]] = load i32, ptr [[TMP28]], align 4
// CHECK-NEXT: call void @__kmpc_parallel_51(ptr addrspacecast (ptr addrspace(1) @[[GLOB1]] to ptr), i32 [[TMP29]], i32 1, i32 -1, i32 -1, ptr @{{__omp_offloading_[0-9a-z]+_[0-9a-z]+}}__Z4foo3v_l52_omp_outlined_omp_outlined, ptr @{{__omp_offloading_[0-9a-z]+_[0-9a-z]+}}__Z4foo3v_l52_omp_outlined_omp_outlined_wrapper, ptr [[CAPTURED_VARS_ADDRS_ASCAST]], i64 3)
// CHECK-NEXT: call void @__kmpc_parallel_60(ptr addrspacecast (ptr addrspace(1) @[[GLOB1]] to ptr), i32 [[TMP29]], i32 1, i32 -1, i32 -1, ptr @{{__omp_offloading_[0-9a-z]+_[0-9a-z]+}}__Z4foo3v_l52_omp_outlined_omp_outlined, ptr @{{__omp_offloading_[0-9a-z]+_[0-9a-z]+}}__Z4foo3v_l52_omp_outlined_omp_outlined_wrapper, ptr [[CAPTURED_VARS_ADDRS_ASCAST]], i64 3, i32 0)
// CHECK-NEXT: store i32 0, ptr [[J_ASCAST]], align 4
// CHECK-NEXT: br label [[FOR_COND:%.*]]
// CHECK: for.cond:
Expand Down Expand Up @@ -1070,7 +1070,7 @@ int main() {
// CHECK-NEXT: store ptr [[A]], ptr [[TMP28]], align 8
// CHECK-NEXT: [[TMP29:%.*]] = load ptr, ptr [[DOTGLOBAL_TID__ADDR_ASCAST]], align 8
// CHECK-NEXT: [[TMP30:%.*]] = load i32, ptr [[TMP29]], align 4
// CHECK-NEXT: call void @__kmpc_parallel_51(ptr addrspacecast (ptr addrspace(1) @[[GLOB1]] to ptr), i32 [[TMP30]], i32 1, i32 -1, i32 -1, ptr @{{__omp_offloading_[0-9a-z]+_[0-9a-z]+}}__Z4foo4v_l76_omp_outlined_omp_outlined, ptr @{{__omp_offloading_[0-9a-z]+_[0-9a-z]+}}__Z4foo4v_l76_omp_outlined_omp_outlined_wrapper, ptr [[CAPTURED_VARS_ADDRS_ASCAST]], i64 3)
// CHECK-NEXT: call void @__kmpc_parallel_60(ptr addrspacecast (ptr addrspace(1) @[[GLOB1]] to ptr), i32 [[TMP30]], i32 1, i32 -1, i32 -1, ptr @{{__omp_offloading_[0-9a-z]+_[0-9a-z]+}}__Z4foo4v_l76_omp_outlined_omp_outlined, ptr @{{__omp_offloading_[0-9a-z]+_[0-9a-z]+}}__Z4foo4v_l76_omp_outlined_omp_outlined_wrapper, ptr [[CAPTURED_VARS_ADDRS_ASCAST]], i64 3, i32 0)
// CHECK-NEXT: store i32 0, ptr [[J_ASCAST]], align 4
// CHECK-NEXT: br label [[FOR_COND:%.*]]
// CHECK: for.cond:
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2 changes: 1 addition & 1 deletion clang/test/OpenMP/amdgpu_target_with_aligned_attribute.c
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Expand Up @@ -158,7 +158,7 @@ void write_to_aligned_array(int *a, int N) {
// CHECK-AMD-NEXT: store ptr [[TMP19]], ptr [[TMP26]], align 8
// CHECK-AMD-NEXT: [[TMP27:%.*]] = load ptr, ptr [[DOTGLOBAL_TID__ADDR_ASCAST]], align 8
// CHECK-AMD-NEXT: [[TMP28:%.*]] = load i32, ptr [[TMP27]], align 4
// CHECK-AMD-NEXT: call void @__kmpc_parallel_51(ptr addrspacecast (ptr addrspace(1) @[[GLOB1]] to ptr), i32 [[TMP28]], i32 1, i32 -1, i32 -1, ptr @{{__omp_offloading_[0-9a-z]+_[0-9a-z]+}}_write_to_aligned_array_l14_omp_outlined_omp_outlined, ptr null, ptr [[CAPTURED_VARS_ADDRS_ASCAST]], i64 4)
// CHECK-AMD-NEXT: call void @__kmpc_parallel_60(ptr addrspacecast (ptr addrspace(1) @[[GLOB1]] to ptr), i32 [[TMP28]], i32 1, i32 -1, i32 -1, ptr @{{__omp_offloading_[0-9a-z]+_[0-9a-z]+}}_write_to_aligned_array_l14_omp_outlined_omp_outlined, ptr null, ptr [[CAPTURED_VARS_ADDRS_ASCAST]], i64 4, i32 0)
// CHECK-AMD-NEXT: br label [[OMP_INNER_FOR_INC:%.*]]
// CHECK-AMD: omp.inner.for.inc:
// CHECK-AMD-NEXT: [[TMP29:%.*]] = load i32, ptr [[DOTOMP_IV_ASCAST]], align 4
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2 changes: 1 addition & 1 deletion clang/test/OpenMP/declare_target_codegen_globalization.cpp
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Expand Up @@ -40,7 +40,7 @@ int maini1() {
// CHECK1-NEXT: [[TMP2:%.*]] = call i32 @__kmpc_global_thread_num(ptr @[[GLOB1:[0-9]+]])
// CHECK1-NEXT: [[TMP3:%.*]] = getelementptr inbounds [1 x ptr], ptr [[CAPTURED_VARS_ADDRS]], i64 0, i64 0
// CHECK1-NEXT: store ptr [[TMP0]], ptr [[TMP3]], align 8
// CHECK1-NEXT: call void @__kmpc_parallel_51(ptr @[[GLOB1]], i32 [[TMP2]], i32 1, i32 -1, i32 -1, ptr @{{__omp_offloading_[0-9a-z]+_[0-9a-z]+}}__Z6maini1v_l16_omp_outlined, ptr null, ptr [[CAPTURED_VARS_ADDRS]], i64 1)
// CHECK1-NEXT: call void @__kmpc_parallel_60(ptr @[[GLOB1]], i32 [[TMP2]], i32 1, i32 -1, i32 -1, ptr @{{__omp_offloading_[0-9a-z]+_[0-9a-z]+}}__Z6maini1v_l16_omp_outlined, ptr null, ptr [[CAPTURED_VARS_ADDRS]], i64 1, i32 0)
// CHECK1-NEXT: call void @__kmpc_target_deinit()
// CHECK1-NEXT: ret void
// CHECK1: worker.exit:
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2 changes: 1 addition & 1 deletion clang/test/OpenMP/metadirective_device_arch_codegen.cpp
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Expand Up @@ -49,7 +49,7 @@ int metadirective1() {
// CHECK: %{{[0-9]}} = call{{.*}} i32 @__kmpc_target_init
// CHECK: user_code.entry:
// CHECK: call{{.*}} void @[[METADIRECTIVE]]_omp_outlined
// CHECK-NOT: call{{.*}} void @__kmpc_parallel_51
// CHECK-NOT: call{{.*}} void @__kmpc_parallel_60
// CHECK: ret void


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4 changes: 2 additions & 2 deletions clang/test/OpenMP/metadirective_device_isa_codegen_amdgcn.cpp
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Expand Up @@ -24,7 +24,7 @@ int amdgcn_device_isa_selected() {

// CHECK: define weak_odr protected amdgpu_kernel void @__omp_offloading_{{.*}}amdgcn_device_isa_selected
// CHECK: user_code.entry:
// CHECK: call void @__kmpc_parallel_51
// CHECK: call void @__kmpc_parallel_60
// CHECK-NOT: call i32 @__kmpc_single
// CHECK: ret void

Expand All @@ -47,7 +47,7 @@ int amdgcn_device_isa_not_selected() {
// CHECK: define weak_odr protected amdgpu_kernel void @__omp_offloading_{{.*}}amdgcn_device_isa_not_selected
// CHECK: user_code.entry:
// CHECK: call i32 @__kmpc_single
// CHECK-NOT: call void @__kmpc_parallel_51
// CHECK-NOT: call void @__kmpc_parallel_60
// CHECK: ret void

#endif
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