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[DAG] Don't try to create an INSERT_SUBVECTOR with an illegal source
We currently can't legalize those, but we should really not be creating them in the first place, since legalization would probably look similar to the way we legalize CONCAT_VECTORS - basically replace the INSERT with a BUILD. This fixes PR311956. Differential Revision: https://reviews.llvm.org/D29961 llvm-svn: 295213
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py | ||
; RUN: llc -mattr=+avx < %s | FileCheck %s | ||
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" | ||
target triple = "x86_64-scei-ps4" | ||
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@G1 = common global <2 x float> zeroinitializer, align 8 | ||
@G2 = common global <8 x float> zeroinitializer, align 32 | ||
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define <4 x float> @foo() { | ||
; CHECK-LABEL: foo: | ||
; CHECK: # BB#0: # %entry | ||
; CHECK-NEXT: vmovsd {{.*#+}} xmm0 = mem[0],zero | ||
; CHECK-NEXT: vblendpd {{.*#+}} ymm0 = ymm0[0],mem[1,2,3] | ||
; CHECK-NEXT: vextractf128 $1, %ymm0, %xmm1 | ||
; CHECK-NEXT: vshufps {{.*#+}} xmm0 = xmm1[0,2],xmm0[2,0] | ||
; CHECK-NEXT: vpermilps {{.*#+}} xmm0 = xmm0[0,2,1,3] | ||
; CHECK-NEXT: vzeroupper | ||
; CHECK-NEXT: retq | ||
entry: | ||
%V = load <2 x float>, <2 x float>* @G1, align 8 | ||
%shuffle = shufflevector <2 x float> %V, <2 x float> undef, <8 x i32> <i32 undef, i32 undef, i32 undef, i32 undef, i32 0, i32 undef, i32 undef, i32 undef> | ||
%L = load <8 x float>, <8 x float>* @G2, align 32 | ||
%shuffle1 = shufflevector <8 x float> %shuffle, <8 x float> %L, <4 x i32> <i32 12, i32 10, i32 14, i32 4> | ||
ret <4 x float> %shuffle1 | ||
} |