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When tail duplicating these functions, the add instruction should not be

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duplicated, even though the block it is in is duplicated.

llvm-svn: 16757
This commit is contained in:
Chris Lattner 2004-10-06 03:26:38 +00:00
parent b2e8fdc431
commit 7a3968b6c0
1 changed files with 31 additions and 0 deletions
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31
test/Regression/Transforms/TailDup/MergeTest.ll Normal file
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@ -0,0 +1,31 @@
; RUN: llvm-as < %s | opt -tailduplicate | llvm-dis | grep add | not grep uses=1
int %test1(bool %C, int %A, int* %P) {
entry:
br bool %C, label %L1, label %L2
L1:
store int 1, int* %P
br label %L2
L2:
%X = add int %A, 17
ret int %X
}
int %test2(bool %C, int %A, int* %P) {
entry:
br bool %C, label %L1, label %L2
L1:
store int 1, int* %P
br label %L3
L2:
store int 7, int* %P
br label %L3
L3:
%X = add int %A, 17
ret int %X
}