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Add a test case for PR1271 (necessary, but not sufficient).

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35343 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer 2007-03-25 21:30:41 +00:00
parent 55702aaa52
commit 9031aca96b
1 changed files with 9 additions and 0 deletions

9
test/Transforms/InstCombine/2007-03-25-DoubleShift.ll Normal file

@ -0,0 +1,9 @@
; PR1271
; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep and
define i1 @test(i32 %tmp13) {
entry:
%tmp14 = shl i32 %tmp13, 12 ; <i32> [#uses=1]
%tmp15 = lshr i32 %tmp14, 12 ; <i32> [#uses=1]
%res = icmp ne i32 %tmp15, 0 ; <i1>:3 [#uses=1]
ret i1 %res
}