[AMDGPU] Remove use of OpenCL triple environment and replace with function attribute for AMDGPU (CLANG)
- Remove use of the opencl and amdopencl environment member of the target triple for the AMDGPU target.
- Use a function attribute to communicate to the AMDGPU backend.
Differential Revision: https://reviews.llvm.org/D43735
llvm-svn: 328347
diff --git a/clang/lib/CodeGen/TargetInfo.cpp b/clang/lib/CodeGen/TargetInfo.cpp
index 01eb6ea..435565d 100644
--- a/clang/lib/CodeGen/TargetInfo.cpp
+++ b/clang/lib/CodeGen/TargetInfo.cpp
@@ -7661,6 +7661,11 @@
const auto *ReqdWGS = M.getLangOpts().OpenCL ?
FD->getAttr<ReqdWorkGroupSizeAttr>() : nullptr;
+
+ if (M.getLangOpts().OpenCL && FD->hasAttr<OpenCLKernelAttr>() &&
+ (M.getTriple().getOS() == llvm::Triple::AMDHSA))
+ F->addFnAttr("amdgpu-implicitarg-num-bytes", "32");
+
const auto *FlatWGS = FD->getAttr<AMDGPUFlatWorkGroupSizeAttr>();
if (ReqdWGS || FlatWGS) {
unsigned Min = FlatWGS ? FlatWGS->getMin() : 0;