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[OpenMP][AMDGPU] Use AMDGPU_KERNEL calling convention for entry function 

AMDGPU backend requires entry functions/kernels to have AMDGPU_KERNEL
calling convention for proper linking.

Reviewed By: JonChesterfield

Differential Revision: https://reviews.llvm.org/D94060
This commit is contained in:
Pushpinder Singh 2021-01-04 06:46:31 -05:00
parent 7f7b0dc4e1
commit 4909cb1a0f
2 changed files with 4 additions and 2 deletions
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2
clang/lib/CodeGen/CGOpenMPRuntime.cpp
View File

@ -6471,6 +6471,8 @@ void CGOpenMPRuntime::emitTargetOutlinedFunctionHelper(
OutlinedFnID = llvm::ConstantExpr::getBitCast(OutlinedFn, CGM.Int8PtrTy);
OutlinedFn->setLinkage(llvm::GlobalValue::WeakAnyLinkage);
OutlinedFn->setDSOLocal(false);
if (CGM.getTriple().isAMDGCN())
OutlinedFn->setCallingConv(llvm::CallingConv::AMDGPU_KERNEL);
} else {
std::string Name = getName({EntryFnName, "region_id"});
OutlinedFnID = new llvm::GlobalVariable(

4
clang/test/OpenMP/amdgcn_target_codegen.cpp
View File

@ -9,7 +9,7 @@
#define N 1000
int test_amdgcn_target_tid_threads() {
// CHECK-LABEL: define weak void @{{.*}}test_amdgcn_target_tid_threads
// CHECK-LABEL: define weak amdgpu_kernel void @{{.*}}test_amdgcn_target_tid_threads
int arr[N];
@ -25,7 +25,7 @@ int test_amdgcn_target_tid_threads() {
}
int test_amdgcn_target_tid_threads_simd() {
// CHECK-LABEL: define weak void @{{.*}}test_amdgcn_target_tid_threads_simd
// CHECK-LABEL: define weak amdgpu_kernel void @{{.*}}test_amdgcn_target_tid_threads_simd
int arr[N];