commit 9f81f8f01c23674fbae1f8c0a9557dcb6aced4fe
author Duncan Sands <baldrick@free.fr> Wed Dec 31 18:08:59 2008 +0000
committer Duncan Sands <baldrick@free.fr> Wed Dec 31 18:08:59 2008 +0000
tree 0e33d3417585a9e2401d155da5f75a4aba0693b4
parent 987453389c8dc10aad5a8744b8a8740d6babf141

Don't analyze arguments already marked 'nocapture'.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61532 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Transforms/IPO/FunctionAttrs.cpp

diff --git a/lib/Transforms/IPO/FunctionAttrs.cpp b/lib/Transforms/IPO/FunctionAttrs.cpp
index 9ed605c..1824a71 100644
--- a/lib/Transforms/IPO/FunctionAttrs.cpp
+++ b/lib/Transforms/IPO/FunctionAttrs.cpp
@@ -263,7 +263,8 @@
       continue;
 
     for (Function::arg_iterator A = F->arg_begin(), E = F->arg_end(); A!=E; ++A)
-      if (isa<PointerType>(A->getType()) && !isCaptured(*F, A)) {
+      if (isa<PointerType>(A->getType()) && !A->hasNoCaptureAttr() &&
+          !isCaptured(*F, A)) {
         A->addAttr(Attribute::NoCapture);
         NumNoCapture++;
         Changed = true;