[OPENMP 4.0] Codegen for 'declare reduction' construct.

Emit function for 'combiner' part of 'declare reduction' construct and
'initialilzer' part, if any.

llvm-svn: 262699

1 files changed, 9 insertions, 0 deletions

diff --git a/clang/lib/CodeGen/ModuleBuilder.cpp b/clang/lib/CodeGen/ModuleBuilder.cpp
index 041a15c..b5a5dfbe 100644
--- a/clang/lib/CodeGen/ModuleBuilder.cpp
+++ b/clang/lib/CodeGen/ModuleBuilder.cpp
@@ -187,6 +187,15 @@ namespace {
           }
         }
       }
+      // For OpenMP emit declare reduction functions, if required.
+      if (Ctx->getLangOpts().OpenMP) {
+        for (Decl *Member : D->decls()) {
+          if (auto *DRD = dyn_cast<OMPDeclareReductionDecl>(Member)) {
+            if (Ctx->DeclMustBeEmitted(DRD))
+              Builder->EmitGlobal(DRD);
+          }
+        }
+      }
     }
 
     void HandleTagDeclRequiredDefinition(const TagDecl *D) override {