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new testcase that caused instcombine to crash on 176.gcc last night.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26039 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2006-02-07 19:07:25 +00:00
parent 2338c5cb0e
commit 78ee0added
1 changed files with 22 additions and 0 deletions
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test/Transforms/InstCombine/2006-02-07-SextZextCrash.ll Normal file
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; RUN: llvm-as < %s | opt -instcombine -disable-output
%struct.rtx_const = type { uint, { %union.real_extract } }
%struct.rtx_def = type { int, [1 x %union.rtunion_def] }
%union.real_extract = type { double }
%union.rtunion_def = type { uint }
implementation ; Functions:
fastcc void %decode_rtx_const(%struct.rtx_def* %x, %struct.rtx_const* %value) {
%tmp.54 = getelementptr %struct.rtx_const* %value, int 0, uint 0 ; <uint*> [#uses=1]
%tmp.56 = getelementptr %struct.rtx_def* %x, int 0, uint 0 ; <int*> [#uses=1]
%tmp.57 = load int* %tmp.56 ; <int> [#uses=1]
%tmp.58 = shl int %tmp.57, ubyte 8 ; <int> [#uses=1]
%tmp.59 = shr int %tmp.58, ubyte 24 ; <int> [#uses=1]
%tmp.60 = cast int %tmp.59 to ushort ; <ushort> [#uses=1]
%tmp.61 = cast ushort %tmp.60 to uint ; <uint> [#uses=1]
%tmp.62 = shl uint %tmp.61, ubyte 16 ; <uint> [#uses=1]
%tmp.65 = or uint 0, %tmp.62 ; <uint> [#uses=1]
store uint %tmp.65, uint* %tmp.54
ret void
}