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New testcase

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llvm-svn: 11766
This commit is contained in:
Chris Lattner 2004-02-23 20:19:51 +00:00
parent 7715d8e2ba
commit 745388980f
1 changed files with 8 additions and 0 deletions
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test/Regression/Transforms/InstCombine/2004-02-23-ShiftShiftOverflow.ll Normal file
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; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep 34
int %test(int %X) {
; Do not fold into shr X, 34, as this uses undefined behavior!
%Y = shr int %X, ubyte 17
%Z = shr int %Y, ubyte 17
ret int %Z
}