[PATCH] D102361: [OpenMP] Add Module metadata for OpenMP compilation

[Joseph Huber via Phabricator via cfe-commits]

jhuber6 created this revision.
jhuber6 added a reviewer: jdoerfert.
Herald added subscribers: guansong, yaxunl.
jhuber6 requested review of this revision.
Herald added subscribers: cfe-commits, sstefan1.
Herald added a project: clang.

This patch adds a module level metadata flag indicating that the module
was compiled with the `-fopenmp` flag. This will make it easier for
passes like OpenMPOpt to determine if it should be run.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D102361

Files:
  clang/lib/CodeGen/CodeGenModule.cpp


Index: clang/lib/CodeGen/CodeGenModule.cpp
===================================================================
--- clang/lib/CodeGen/CodeGenModule.cpp
+++ clang/lib/CodeGen/CodeGenModule.cpp
@@ -697,6 +697,10 @@
                                   llvm::DenormalMode::IEEE);
   }
 
+  // Indicate whether this Module was compiled with -fopenmp
+  if (getLangOpts().OpenMP && !getLangOpts().OpenMPSimd)
+    getModule().addModuleFlag(llvm::Module::Max, "openmp", LangOpts.OpenMP);
+
   // Emit OpenCL specific module metadata: OpenCL/SPIR version.
   if (LangOpts.OpenCL) {
     EmitOpenCLMetadata();


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