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[X86][SSE] Add partial dereferenceable vector load test inspired by PR21780 

llvm-svn: 365145
This commit is contained in:
Simon Pilgrim 2019-07-04 15:00:04 +00:00
parent 7aff852810
commit e602f70de1
1 changed files with 42 additions and 4 deletions
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46
llvm/test/CodeGen/X86/load-partial.ll
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@ -4,10 +4,10 @@
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+sse4.1 | FileCheck %s --check-prefixes=SSE,SSE41
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx | FileCheck %s --check-prefixes=AVX,AVX1
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx2 | FileCheck %s --check-prefixes=AVX,AVX2
;
; Partial Vector Loads - PR16739
;
;
; Partial Vector Loads - PR16739
;
define <4 x float> @load_float4_float3(<4 x float>* nocapture readonly dereferenceable(16)) {
; SSE2-LABEL: load_float4_float3:
@ -174,3 +174,41 @@ define <4 x float> @load_float4_float3_trunc(<4 x float>* nocapture readonly der
%16 = insertelement <4 x float> %13, float %15, i32 2
ret <4 x float> %16
}
; PR21780
define <4 x double> @load_double4_0u2u(double* nocapture readonly dereferenceable(32)) {
; SSE2-LABEL: load_double4_0u2u:
; SSE2: # %bb.0:
; SSE2-NEXT: movsd {{.*#+}} xmm0 = mem[0],zero
; SSE2-NEXT: movsd {{.*#+}} xmm1 = mem[0],zero
; SSE2-NEXT: movlhps {{.*#+}} xmm0 = xmm0[0,0]
; SSE2-NEXT: movlhps {{.*#+}} xmm1 = xmm1[0,0]
; SSE2-NEXT: retq
;
; SSSE3-LABEL: load_double4_0u2u:
; SSSE3: # %bb.0:
; SSSE3-NEXT: movddup {{.*#+}} xmm0 = mem[0,0]
; SSSE3-NEXT: movddup {{.*#+}} xmm1 = mem[0,0]
; SSSE3-NEXT: retq
;
; SSE41-LABEL: load_double4_0u2u:
; SSE41: # %bb.0:
; SSE41-NEXT: movddup {{.*#+}} xmm0 = mem[0,0]
; SSE41-NEXT: movddup {{.*#+}} xmm1 = mem[0,0]
; SSE41-NEXT: retq
;
; AVX-LABEL: load_double4_0u2u:
; AVX: # %bb.0:
; AVX-NEXT: vmovsd {{.*#+}} xmm0 = mem[0],zero
; AVX-NEXT: vmovsd {{.*#+}} xmm1 = mem[0],zero
; AVX-NEXT: vinsertf128 $1, %xmm1, %ymm0, %ymm0
; AVX-NEXT: vmovddup {{.*#+}} ymm0 = ymm0[0,0,2,2]
; AVX-NEXT: retq
%2 = load double, double* %0, align 8
%3 = insertelement <4 x double> undef, double %2, i32 0
%4 = getelementptr inbounds double, double* %0, i64 2
%5 = load double, double* %4, align 8
%6 = insertelement <4 x double> %3, double %5, i32 2
%7 = shufflevector <4 x double> %6, <4 x double> undef, <4 x i32> <i32 0, i32 0, i32 2, i32 2>
ret <4 x double> %7
}