[x86] add test for sext-of-setcc; NFC

D103462

diff --git a/llvm/test/CodeGen/X86/sext-vsetcc.ll b/llvm/test/CodeGen/X86/sext-vsetcc.ll
index c87a9e2..91fc99a 100644 (file)
--- a/llvm/test/CodeGen/X86/sext-vsetcc.ll
+++ b/llvm/test/CodeGen/X86/sext-vsetcc.ll
@@ -492,8 +492,8 @@ define <8 x i32> @PR50055(<8 x i8>* %src, <8 x i32>* %dst) nounwind {
   ret <8 x i32> %zext
 }
 
-define <8 x i16> @multi_use_different_sizes(<8 x i8>* %src, <8 x i32>* %dst) nounwind {
-; SSE-LABEL: multi_use_different_sizes:
+define <8 x i16> @multi_use_narrower_sizes(<8 x i8>* %src, <8 x i32>* %dst) nounwind {
+; SSE-LABEL: multi_use_narrower_sizes:
 ; SSE:       # %bb.0:
 ; SSE-NEXT:    movq {{.*#+}} xmm1 = mem[0],zero
 ; SSE-NEXT:    pxor %xmm2, %xmm2
@@ -509,7 +509,7 @@ define <8 x i16> @multi_use_different_sizes(<8 x i8>* %src, <8 x i32>* %dst) nou
 ; SSE-NEXT:    movdqa %xmm2, (%rsi)
 ; SSE-NEXT:    retq
 ;
-; AVX-LABEL: multi_use_different_sizes:
+; AVX-LABEL: multi_use_narrower_sizes:
 ; AVX:       # %bb.0:
 ; AVX-NEXT:    vmovq {{.*#+}} xmm1 = mem[0],zero
 ; AVX-NEXT:    vpmovzxbw {{.*#+}} xmm0 = xmm1[0],zero,xmm1[1],zero,xmm1[2],zero,xmm1[3],zero,xmm1[4],zero,xmm1[5],zero,xmm1[6],zero,xmm1[7],zero
@@ -526,3 +526,36 @@ define <8 x i16> @multi_use_different_sizes(<8 x i8>* %src, <8 x i32>* %dst) nou
   store <8 x i32> %sext, <8 x i32>* %dst
   ret <8 x i16> %zext
 }
+
+define <8 x i32> @multi_use_wider_size(<8 x i8>* %src, <8 x i16>* %dst) nounwind {
+; SSE-LABEL: multi_use_wider_size:
+; SSE:       # %bb.0:
+; SSE-NEXT:    movq {{.*#+}} xmm2 = mem[0],zero
+; SSE-NEXT:    pxor %xmm3, %xmm3
+; SSE-NEXT:    movdqa %xmm2, %xmm1
+; SSE-NEXT:    punpcklbw {{.*#+}} xmm1 = xmm1[0],xmm3[0],xmm1[1],xmm3[1],xmm1[2],xmm3[2],xmm1[3],xmm3[3],xmm1[4],xmm3[4],xmm1[5],xmm3[5],xmm1[6],xmm3[6],xmm1[7],xmm3[7]
+; SSE-NEXT:    movdqa %xmm1, %xmm0
+; SSE-NEXT:    punpcklwd {{.*#+}} xmm0 = xmm0[0],xmm3[0],xmm0[1],xmm3[1],xmm0[2],xmm3[2],xmm0[3],xmm3[3]
+; SSE-NEXT:    punpckhwd {{.*#+}} xmm1 = xmm1[4],xmm3[4],xmm1[5],xmm3[5],xmm1[6],xmm3[6],xmm1[7],xmm3[7]
+; SSE-NEXT:    pcmpeqb %xmm3, %xmm2
+; SSE-NEXT:    punpcklbw {{.*#+}} xmm2 = xmm2[0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7]
+; SSE-NEXT:    psraw $8, %xmm2
+; SSE-NEXT:    movdqa %xmm2, (%rsi)
+; SSE-NEXT:    retq
+;
+; AVX-LABEL: multi_use_wider_size:
+; AVX:       # %bb.0:
+; AVX-NEXT:    vmovq {{.*#+}} xmm1 = mem[0],zero
+; AVX-NEXT:    vpmovzxbd {{.*#+}} ymm0 = xmm1[0],zero,zero,zero,xmm1[1],zero,zero,zero,xmm1[2],zero,zero,zero,xmm1[3],zero,zero,zero,xmm1[4],zero,zero,zero,xmm1[5],zero,zero,zero,xmm1[6],zero,zero,zero,xmm1[7],zero,zero,zero
+; AVX-NEXT:    vpxor %xmm2, %xmm2, %xmm2
+; AVX-NEXT:    vpcmpeqb %xmm2, %xmm1, %xmm1
+; AVX-NEXT:    vpmovsxbw %xmm1, %xmm1
+; AVX-NEXT:    vmovdqa %xmm1, (%rsi)
+; AVX-NEXT:    retq
+  %load = load <8 x i8>, <8 x i8>* %src
+  %zext = zext <8 x i8> %load to <8 x i32>
+  %icmp = icmp eq <8 x i8> %load, zeroinitializer
+  %sext = sext <8 x i1> %icmp to <8 x i16>
+  store <8 x i16> %sext, <8 x i16>* %dst
+  ret <8 x i32> %zext
+}