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view test/CodeGen/X86/pshufd-combine-crash.ll @ 95:afa8332a0e37 LLVM3.8

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LLVM 3.8
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Tue, 13 Oct 2015 17:48:58 +0900
parents 54457678186b
children 803732b1fca8
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; RUN: llc < %s -march=x86-64 -mcpu=corei7 -debug

; REQUIRES: asserts

; Test that the dag combiner doesn't assert if we try to replace a sequence of two
; v4f32 X86ISD::PSHUFD nodes with a single PSHUFD.


define <4 x float> @test(<4 x float> %V) {
  %1 = shufflevector <4 x float> %V, <4 x float> undef, <4 x i32> <i32 3, i32 0, i32 2, i32 1>
  %2 = shufflevector <4 x float> %1, <4 x float> undef, <4 x i32> <i32 3, i32 0, i32 2, i32 1>
  ret <4 x float> %2
}