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Testcase for PR1011

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31877 91177308-0d34-0410-b5e6-96231b3b80d8
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Chris Lattner 2006-11-20 18:05:26 +00:00
parent a138c6c73a
commit f2d2a5a79c
1 changed files with 44 additions and 0 deletions
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test/CodeGen/Generic/2006-11-20-DAGCombineCrash.ll Normal file
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; RUN: llvm-as < %s | llc
; PR1011
%struct.mng_data = type { sbyte* (%struct.mng_data*, uint)*, int, int, int, sbyte, sbyte, int, int, int, int, int }
implementation ; Functions:
void %mng_display_bgr565() {
entry:
br bool false, label %bb.preheader, label %return
bb.preheader: ; preds = %entry
br bool false, label %cond_true48, label %cond_next80
cond_true48: ; preds = %bb.preheader
%tmp = load ubyte* null ; <ubyte> [#uses=1]
%tmp51 = cast ubyte %tmp to ushort ; <ushort> [#uses=1]
%tmp99 = load sbyte* null ; <sbyte> [#uses=1]
%tmp54 = cast sbyte %tmp99 to ubyte ; <ubyte> [#uses=1]
%tmp54 = cast ubyte %tmp54 to int ; <int> [#uses=1]
%tmp55 = lshr int %tmp54, ubyte 3 ; <int> [#uses=1]
%tmp55 = cast int %tmp55 to ushort ; <ushort> [#uses=1]
%tmp52 = shl ushort %tmp51, ubyte 5 ; <ushort> [#uses=1]
%tmp56 = and ushort %tmp55, 28 ; <ushort> [#uses=1]
%tmp57 = or ushort %tmp56, %tmp52 ; <ushort> [#uses=1]
%tmp60 = cast ushort %tmp57 to uint ; <uint> [#uses=1]
%tmp62 = xor uint 0, 65535 ; <uint> [#uses=1]
%tmp63 = mul uint %tmp60, %tmp62 ; <uint> [#uses=1]
%tmp65 = add uint 0, %tmp63 ; <uint> [#uses=1]
%tmp69 = add uint 0, %tmp65 ; <uint> [#uses=1]
%tmp70 = lshr uint %tmp69, ubyte 16 ; <uint> [#uses=1]
%tmp70 = cast uint %tmp70 to ushort ; <ushort> [#uses=1]
%tmp75 = lshr ushort %tmp70, ubyte 8 ; <ushort> [#uses=1]
%tmp75 = cast ushort %tmp75 to ubyte ; <ubyte> [#uses=1]
%tmp76 = lshr ubyte %tmp75, ubyte 5 ; <ubyte> [#uses=1]
store ubyte %tmp76, ubyte* null
ret void
cond_next80: ; preds = %bb.preheader
ret void
return: ; preds = %entry
ret void
}