[PATCH] D123049: Emit OpenCL metadata when targeting SPIR-V

[Shangwu Yao via Phabricator via cfe-commits]

shangwuyao created this revision.
shangwuyao added reviewers: jlebar, yaxunl, tra.
Herald added subscribers: ldrumm, ThomasRaoux, Anastasia.
Herald added a project: All.
shangwuyao requested review of this revision.
Herald added a project: clang.
Herald added a subscriber: cfe-commits.

This is required for converting function calls such as get_global_id()
into SPIR-V builtins.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D123049

Files:
  clang/lib/CodeGen/CodeGenModule.cpp
  clang/lib/Frontend/CompilerInvocation.cpp
  clang/test/CodeGenCUDASPIRV/kernel-cc.cu


Index: clang/test/CodeGenCUDASPIRV/kernel-cc.cu
===================================================================
--- clang/test/CodeGenCUDASPIRV/kernel-cc.cu
+++ clang/test/CodeGenCUDASPIRV/kernel-cc.cu
@@ -7,3 +7,6 @@
 // CHECK: define spir_kernel void @_Z6kernelv()
 
 __attribute__((global)) void kernel() { return; }
+
+// CHECK: !opencl.ocl.version = !{[[OCL:![0-9]+]]}
+// CHECK: [[OCL]] = !{i32 2, i32 0}
Index: clang/lib/Frontend/CompilerInvocation.cpp
===================================================================
--- clang/lib/Frontend/CompilerInvocation.cpp
+++ clang/lib/Frontend/CompilerInvocation.cpp
@@ -3312,6 +3312,10 @@
     // whereas respecting contract flag in backend.
     Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas);
   } else if (Opts.CUDA) {
+    if (T.isSPIRV()) {
+      // Emit OpenCL version metadata in LLVM IR when targeting SPIR-V.
+      Opts.OpenCLVersion = 200;
+    }
     // Allow fuse across statements disregarding pragmas.
     Opts.setDefaultFPContractMode(LangOptions::FPM_Fast);
   }
Index: clang/lib/CodeGen/CodeGenModule.cpp
===================================================================
--- clang/lib/CodeGen/CodeGenModule.cpp
+++ clang/lib/CodeGen/CodeGenModule.cpp
@@ -784,7 +784,7 @@
                               LangOpts.OpenMP);
 
   // Emit OpenCL specific module metadata: OpenCL/SPIR version.
-  if (LangOpts.OpenCL) {
+  if (LangOpts.OpenCL || (LangOpts.CUDAIsDevice && getTriple().isSPIRV())) {
     EmitOpenCLMetadata();
     // Emit SPIR version.
     if (getTriple().isSPIR()) {


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