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Fix two issues that Eli Friedman pointed out, where would misoptimized code like:

Browse Source 
char a[200];
init(a, a+200);

OR

int a[200];
char* b = (char*)a;
char* c = (char*)a;
foo(b, c);


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51850 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson
2008-06-01 22:26:26 +00:00
parent 19d4d12ee0
commit 009e4f7609
2 changed files with 15 additions and 4 deletions
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2
test/Transforms/MemCpyOpt/2008-06-01-MemCpy-MemMove.ll
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@@ -1,4 +1,4 @@
; RUN: llvm-as < %s | opt -memcpyopt | llvm-dis | grep {call.*memcpy.*}
; RUN: llvm-as < %s | opt -memcpyopt | llvm-dis | grep {call.*memmove.*arg1.*}
; PR2401
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32"