llvm/test/CodeGen/X86/2008-06-25-VecISelBug.ll

; RUN: llc < %s -march=x86 -mattr=+sse2 | not grep pslldq

define void @t() nounwind  {
entry:
	%tmp1 = shufflevector <4 x float> zeroinitializer, <4 x float> < float 0.000000e+00, float 1.000000e+00, float 0.000000e+00, float 1.000000e+00 >, <4 x i32> < i32 0, i32 1, i32 4, i32 5 >
	%tmp2 = insertelement <4 x float> %tmp1, float 1.000000e+00, i32 3
	store <4 x float> %tmp2, <4 x float>* null, align 16
	unreachable
}
Eliminate more uses of llvm-as and llvm-dis. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81290 91177308-0d34-0410-b5e6-96231b3b80d8 2009-09-08 23:54:48 +00:00			`; RUN: llc < %s -march=x86 -mattr=+sse2 \| not grep pslldq`
- Fix a x86 vector isel bug: illegal transformation of a vector_shuffle into a shift. - Add a readme entry for a missing vector_shuffle optimization that results in awful codegen. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52740 91177308-0d34-0410-b5e6-96231b3b80d8 2008-06-25 20:52:59 +00:00
			`define void @t() nounwind {`
			`entry:`
			`%tmp1 = shufflevector <4 x float> zeroinitializer, <4 x float> < float 0.000000e+00, float 1.000000e+00, float 0.000000e+00, float 1.000000e+00 >, <4 x i32> < i32 0, i32 1, i32 4, i32 5 >`
			`%tmp2 = insertelement <4 x float> %tmp1, float 1.000000e+00, i32 3`
			`store <4 x float> %tmp2, <4 x float>* null, align 16`
			`unreachable`
			`}`