[OpenMP] Allow OMP6.0 features. (#122108)

Add support for the `-fopenmp-version=60` command line argument. It is
needed for https://github.com/llvm/llvm-project/pull/119891 (`#pragma
omp stripe`) which will be the first OpenMP 6.0 directive implemented.
Add regression tests for Clang in `-fopenmp-version=60` mode.

2 files changed, 7 insertions, 1 deletions

diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp
index 2097a83..8411217 100644
--- a/clang/lib/Frontend/CompilerInvocation.cpp
+++ b/clang/lib/Frontend/CompilerInvocation.cpp
@@ -4215,7 +4215,7 @@ bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args,
     }
   }
 
-  // Check if -fopenmp is specified and set default version to 5.0.
+  // Check if -fopenmp is specified and set default version to 5.1.
   Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 51 : 0;
   // Check if -fopenmp-simd is specified.
   bool IsSimdSpecified =
diff --git a/clang/lib/Frontend/InitPreprocessor.cpp b/clang/lib/Frontend/InitPreprocessor.cpp
index 17f624e..542e26b6 100644
--- a/clang/lib/Frontend/InitPreprocessor.cpp
+++ b/clang/lib/Frontend/InitPreprocessor.cpp
@@ -1466,9 +1466,15 @@ static void InitializePredefinedMacros(const TargetInfo &TI,
     case 50:
       Builder.defineMacro("_OPENMP", "201811");
       break;
+    case 51:
+      Builder.defineMacro("_OPENMP", "202011");
+      break;
     case 52:
       Builder.defineMacro("_OPENMP", "202111");
       break;
+    case 60:
+      Builder.defineMacro("_OPENMP", "202411");
+      break;
     default: // case 51:
       // Default version is OpenMP 5.1
       Builder.defineMacro("_OPENMP", "202011");