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Fix regression from r151466: an we can't replace uses of an instruction reachable from the entry block with uses of an instruction not reachable from the entry block. PR12231.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152595 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eli Friedman
2012-03-13 01:06:07 +00:00
parent 90c14fcb7e
commit 5b8f0ddc7e
2 changed files with 26 additions and 3 deletions
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19
test/Transforms/EarlyCSE/instsimplify-dom.ll Normal file
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; RUN: opt -early-cse -S < %s | FileCheck %s
; PR12231
declare i32 @f()
define i32 @fn() {
entry:
br label %lbl_1215
lbl_1215:
%ins34 = phi i32 [ %ins35, %xxx ], [ undef, %entry ]
ret i32 %ins34
xxx:
%ins35 = call i32 @f()
br label %lbl_1215
}
; CHECK: define i32 @fn