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| ; RUN: llc < %s -mtriple=x86_64-unknown -mattr=sse4.1 -o /dev/null
; Testcase for PR31593.
; Revision r291120 introduced a regression and this test started failing
; because of a 'fatal error in the backend':
; Cannot select: t14: v2i64 = zero_extend_vector_inreg t18
; t18: v4i32 = bitcast t17
; t17: v2i64,ch = load<LD16[%0](dereferenceable)> t0, FrameIndex:i64<1>, undef:i64
; t1: i64 = FrameIndex<1>
; t3: i64 = undef
; In function: _Z3foov
; This regression was fixed in r291535.
%struct.S = type { <2 x i64> }
declare <4 x i32> @llvm.x86.sse2.pslli.d(<4 x i32>, i32)
define void @_Z3foov() local_unnamed_addr #2 {
entry:
%zero = alloca %struct.S, align 16
%e = alloca %struct.S, align 16
%s = alloca %struct.S, align 16
%0 = bitcast %struct.S* %zero to i8*
%1 = bitcast %struct.S* %e to i8*
%2 = bitcast %struct.S* %e to <4 x i32>*
%3 = load <4 x i32>, <4 x i32>* %2, align 16
%vecext.i = extractelement <4 x i32> %3, i32 0
%4 = bitcast %struct.S* %s to i8*
%5 = bitcast %struct.S* %s to <4 x i32>*
%6 = call <4 x i32> @llvm.x86.sse2.pslli.d(<4 x i32> undef, i32 %vecext.i)
store <4 x i32> %6, <4 x i32>* %5, align 16
ret void
}
attributes #2 = { "target-features"="+sse4.1" }
|