commit 94236e7393d5cd4acbc5f0b503d23bbe78d9aeec
author Bill Wendling <isanbard@gmail.com> Fri Feb 22 00:13:35 2013 +0000
committer Bill Wendling <isanbard@gmail.com> Fri Feb 22 00:13:35 2013 +0000
tree 233a3a5226d93c4471488674ea70408ea57ce69f
parent 0c67fc9c2e2ec8aa787ee9daf2780d47abe1fb6c

Apply the 'nobuiltin' attribute to call sites when the user specifies `-fno-builtin' on the command line.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175836 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/CGCall.cpp

diff --git a/lib/CodeGen/CGCall.cpp b/lib/CodeGen/CGCall.cpp
index 6072f60..9fd31fe 100644
--- a/lib/CodeGen/CGCall.cpp
+++ b/lib/CodeGen/CGCall.cpp
@@ -969,7 +969,8 @@
 void CodeGenModule::ConstructAttributeList(const CGFunctionInfo &FI,
                                            const Decl *TargetDecl,
                                            AttributeListType &PAL,
-                                           unsigned &CallingConv) {
+                                           unsigned &CallingConv,
+                                           bool AttrOnCallSite) {
   llvm::AttrBuilder FuncAttrs;
   llvm::AttrBuilder RetAttrs;
 
@@ -1028,6 +1029,9 @@
     FuncAttrs.addAttribute("target-features", Features.getString());
   }
 
+  if (AttrOnCallSite && !CodeGenOpts.SimplifyLibCalls)
+    FuncAttrs.addAttribute(llvm::Attribute::NoBuiltin);
+
   QualType RetTy = FI.getReturnType();
   unsigned Index = 1;
   const ABIArgInfo &RetAI = FI.getReturnInfo();
@@ -2238,9 +2242,10 @@
 
   unsigned CallingConv;
   CodeGen::AttributeListType AttributeList;
-  CGM.ConstructAttributeList(CallInfo, TargetDecl, AttributeList, CallingConv);
+  CGM.ConstructAttributeList(CallInfo, TargetDecl, AttributeList,
+                             CallingConv, true);
   llvm::AttributeSet Attrs = llvm::AttributeSet::get(getLLVMContext(),
-                                                   AttributeList);
+                                                     AttributeList);
 
   llvm::BasicBlock *InvokeDest = 0;
   if (!Attrs.hasAttribute(llvm::AttributeSet::FunctionIndex,