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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@365145 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/X86/load-partial.ll b/test/CodeGen/X86/load-partial.ll
index 91ea66b..6d8d663 100644 (file)
--- a/test/CodeGen/X86/load-partial.ll
+++ b/test/CodeGen/X86/load-partial.ll
@@ -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
-\r
-;\r
-; Partial Vector Loads - PR16739\r
-;\r
+
+;
+; 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
+}