[OPENMP]Fix thread id passed to outlined region in sequential parallel

regions.

The real global thread id must be passed to the outlined region instead
of the zero thread id.

llvm-svn: 375119

1 files changed, 3 insertions, 5 deletions

diff --git a/clang/lib/CodeGen/CGOpenMPRuntime.cpp b/clang/lib/CodeGen/CGOpenMPRuntime.cpp
index 7ff36c79f6f..6a6659f9063 100644
--- a/clang/lib/CodeGen/CGOpenMPRuntime.cpp
+++ b/clang/lib/CodeGen/CGOpenMPRuntime.cpp
@@ -3075,17 +3075,15 @@ void CGOpenMPRuntime::emitParallelCall(CodeGenFunction &CGF, SourceLocation Loc,
     CGF.EmitRuntimeCall(
         RT.createRuntimeFunction(OMPRTL__kmpc_serialized_parallel), Args);
 
-    // OutlinedFn(&zero, &zero_bound, CapturedStruct);
-    Address ZeroAddr = CGF.CreateDefaultAlignTempAlloca(CGF.Int32Ty,
-                                                        /*Name=*/".zero.addr");
-    CGF.InitTempAlloca(ZeroAddr, CGF.Builder.getInt32(/*C*/ 0));
+    // OutlinedFn(&GTid, &zero_bound, CapturedStruct);
+    Address ThreadIDAddr = RT.emitThreadIDAddress(CGF, Loc);
     Address ZeroAddrBound =
         CGF.CreateDefaultAlignTempAlloca(CGF.Int32Ty,
                                          /*Name=*/".bound.zero.addr");
     CGF.InitTempAlloca(ZeroAddrBound, CGF.Builder.getInt32(/*C*/ 0));
     llvm::SmallVector<llvm::Value *, 16> OutlinedFnArgs;
     // ThreadId for serialized parallels is 0.
-    OutlinedFnArgs.push_back(ZeroAddr.getPointer());
+    OutlinedFnArgs.push_back(ThreadIDAddr.getPointer());
     OutlinedFnArgs.push_back(ZeroAddrBound.getPointer());
     OutlinedFnArgs.append(CapturedVars.begin(), CapturedVars.end());
     RT.emitOutlinedFunctionCall(CGF, Loc, OutlinedFn, OutlinedFnArgs);