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Revert r64460. strtol and friends cannot be marked readonly, even with

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a null endptr argument, because they may write to errno.

This fixes a seflhost miscompile observed on Linux targets when TBAA
was enabled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122014 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2010-12-17 01:09:43 +00:00
parent 2d8e3e741f
commit c32046e6ea
2 changed files with 3 additions and 2 deletions
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2
test/Transforms/SimplifyLibCalls/2009-02-12-StrTo.ll
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@@ -1,7 +1,7 @@
; RUN: opt < %s -simplify-libcalls -S > %t
; RUN: grep nocapture %t | count 2
; RUN: grep null %t | grep nocapture | count 1
; RUN: grep null %t | grep call | grep readonly | count 1
; RUN: grep null %t | grep call | not grep readonly
; Test that we add nocapture to the declaration, and to the second call only.