commit 76168e289ca4b307259e3bc9b3353f03b05bb6b9
author Ryan Flynn <pizza@parseerror.com> Sun Aug 09 20:07:29 2009 +0000
committer Ryan Flynn <pizza@parseerror.com> Sun Aug 09 20:07:29 2009 +0000
tree 0200fde8022319a4ea4d63582a4a64d9c5cd6322
parent 237957c45774713f81fbd5394b3db4317fef0938

map previously ignored __attribute((malloc)) to noalias attribute of llvm function's return

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78541 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/CGCall.cpp

diff --git a/lib/CodeGen/CGCall.cpp b/lib/CodeGen/CGCall.cpp
index 12d4d9c..24d8274 100644
--- a/lib/CodeGen/CGCall.cpp
+++ b/lib/CodeGen/CGCall.cpp
@@ -385,6 +385,8 @@
       FuncAttrs |= llvm::Attribute::ReadNone;
     else if (TargetDecl->hasAttr<PureAttr>())
       FuncAttrs |= llvm::Attribute::ReadOnly;
+    if (TargetDecl->hasAttr<MallocAttr>())
+      RetAttrs |= llvm::Attribute::NoAlias;
   }
 
   if (CompileOpts.DisableRedZone)