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do not set realloc() as NotAlias, since it can return the same pointer. This whole thing should be upgraded to use the MemoryBuiltin interface anyway..

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159173 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nuno Lopes
2012-06-25 22:55:50 +00:00
parent 540cda34b0
commit a88d0edb49
2 changed files with 1 additions and 2 deletions
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1
lib/Transforms/Scalar/SimplifyLibCalls.cpp
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@ -1942,7 +1942,6 @@ void SimplifyLibCalls::inferPrototypeAttributes(Function &F) {
!FTy->getReturnType()->isPointerTy()) !FTy->getReturnType()->isPointerTy())
return; return;
setDoesNotThrow(F); setDoesNotThrow(F);
setDoesNotAlias(F, 0);
setDoesNotCapture(F, 1); setDoesNotCapture(F, 1);
} else if (Name == "read") { } else if (Name == "read") {
if (FTy->getNumParams() != 3 || if (FTy->getNumParams() != 3 ||

2
test/Transforms/SimplifyLibCalls/2009-01-04-Annotate.ll
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@ -1,5 +1,5 @@
; RUN: opt < %s -simplify-libcalls -S > %t ; RUN: opt < %s -simplify-libcalls -S > %t
; RUN: grep noalias %t | count 2 ; RUN: grep noalias %t | count 1
; RUN: grep nocapture %t | count 3 ; RUN: grep nocapture %t | count 3
; RUN: grep nounwind %t | count 3 ; RUN: grep nounwind %t | count 3
; RUN: grep readonly %t | count 1 ; RUN: grep readonly %t | count 1