[cfe-commits] r92749 - /cfe/trunk/lib/CodeGen/CodeGenModule.cpp

[Mike Stump]

Author: mrs
Date: Tue Jan  5 12:48:04 2010
New Revision: 92749

URL: http://llvm.org/viewvc/llvm-project?rev=92749&view=rev
Log:
Add code to skip the emission of available externally functions at -O0.  WIP.

Modified:
    cfe/trunk/lib/CodeGen/CodeGenModule.cpp

Modified: cfe/trunk/lib/CodeGen/CodeGenModule.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CodeGenModule.cpp?rev=92749&r1=92748&r2=92749&view=diff

==============================================================================
--- cfe/trunk/lib/CodeGen/CodeGenModule.cpp (original)
+++ cfe/trunk/lib/CodeGen/CodeGenModule.cpp Tue Jan  5 12:48:04 2010
@@ -468,6 +468,16 @@
     if (!CGRef->isDeclaration())
       continue;
 
+    // Skip available externally functions at -O0
+    // FIXME: these aren't instantiated yet, so we can't yet do this.
+    if (0 && getCodeGenOpts().OptimizationLevel == 0)
+      if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D.getDecl())) {
+        GVALinkage Linkage = GetLinkageForFunction(getContext(), FD, Features);
+
+        if (Linkage == GVA_C99Inline)
+          continue;
+      }
+
     // Otherwise, emit the definition and move on to the next one.
     EmitGlobalDefinition(D);
   }