llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT--> @llvm/pr-subscribers-hlsl Author: Xiang Li (python3kgae) <details> <summary>Changes</summary> Generate function attribute hlsl.wavesize from [WaveSize]. For #<!-- -->70118 --- Full diff: https://github.com/llvm/llvm-project/pull/107176.diff 2 Files Affected: - (modified) clang/lib/CodeGen/CGHLSLRuntime.cpp (+7) - (added) clang/test/CodeGenHLSL/wavesize.hlsl (+25) ``````````diff diff --git a/clang/lib/CodeGen/CGHLSLRuntime.cpp b/clang/lib/CodeGen/CGHLSLRuntime.cpp index 4bd7b6ba58de0d..28ff1153c8e1e3 100644 --- a/clang/lib/CodeGen/CGHLSLRuntime.cpp +++ b/clang/lib/CodeGen/CGHLSLRuntime.cpp @@ -337,6 +337,13 @@ void clang::CodeGen::CGHLSLRuntime::setHLSLEntryAttributes( NumThreadsAttr->getZ()); Fn->addFnAttr(NumThreadsKindStr, NumThreadsStr); } + if (HLSLWaveSizeAttr *WaveSizeAttr = FD->getAttr<HLSLWaveSizeAttr>()) { + const StringRef WaveSizeKindStr = "hlsl.wavesize"; + std::string WaveSizeStr = + formatv("{0},{1},{2}", WaveSizeAttr->getMin(), WaveSizeAttr->getMax(), + WaveSizeAttr->getPreferred()); + Fn->addFnAttr(WaveSizeKindStr, WaveSizeStr); + } } static Value *buildVectorInput(IRBuilder<> &B, Function *F, llvm::Type *Ty) { diff --git a/clang/test/CodeGenHLSL/wavesize.hlsl b/clang/test/CodeGenHLSL/wavesize.hlsl new file mode 100644 index 00000000000000..ae4b2f17c543e0 --- /dev/null +++ b/clang/test/CodeGenHLSL/wavesize.hlsl @@ -0,0 +1,25 @@ +// RUN: %clang_cc1 -std=hlsl2021 -finclude-default-header -x hlsl -triple \ +// RUN: dxil-pc-shadermodel6.6-compute %s -DSM66 -hlsl-entry foo \ +// RUN: -emit-llvm -disable-llvm-passes -o - | FileCheck %s + +// RUN: %clang_cc1 -std=hlsl2021 -finclude-default-header -x hlsl -triple \ +// RUN: dxil-pc-shadermodel6.8-compute %s -hlsl-entry foo \ +// RUN: -emit-llvm -disable-llvm-passes -o - | FileCheck %s --check-prefix=CHECK-SM68 + + +// Make sure wavesize attribute get correct value for sm66 and sm68. +// CHECK:define void @foo() +// CHECK:"hlsl.wavesize"="8,0,0" + +// CHECK-SM68:define void @foo() +// CHECK-SM68:"hlsl.wavesize"="8,128,64" + +[numthreads(16,8,1)] +#ifdef SM66 +[WaveSize(8)] +#else +[WaveSize(8, 128, 64)] +#endif +void foo() { + +} `````````` </details> https://github.com/llvm/llvm-project/pull/107176 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
