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llvm-6502/test/Transforms/InstCombine/2006-02-07-SextZextCrash.ll
2008-03-01 09:15:35 +00:00

22 lines
1.1 KiB
LLVM

; RUN: llvm-as < %s | opt -instcombine -disable-output
%struct.rtx_const = type { i32, { %union.real_extract } }
%struct.rtx_def = type { i32, [1 x %union.rtunion_def] }
%union.real_extract = type { double }
%union.rtunion_def = type { i32 }
define fastcc void @decode_rtx_const(%struct.rtx_def* %x, %struct.rtx_const* %value) {
%tmp.54 = getelementptr %struct.rtx_const* %value, i32 0, i32 0 ; <i32*> [#uses=1]
%tmp.56 = getelementptr %struct.rtx_def* %x, i32 0, i32 0 ; <i32*> [#uses=1]
%tmp.57 = load i32* %tmp.56 ; <i32> [#uses=1]
%tmp.58 = shl i32 %tmp.57, 8 ; <i32> [#uses=1]
%tmp.59 = ashr i32 %tmp.58, 24 ; <i32> [#uses=1]
%tmp.60 = trunc i32 %tmp.59 to i16 ; <i16> [#uses=1]
%tmp.61 = zext i16 %tmp.60 to i32 ; <i32> [#uses=1]
%tmp.62 = shl i32 %tmp.61, 16 ; <i32> [#uses=1]
%tmp.65 = or i32 0, %tmp.62 ; <i32> [#uses=1]
store i32 %tmp.65, i32* %tmp.54
ret void
}