[llvm] e54f683 - [X86] Add shuffle tests for #104482

[Simon Pilgrim via llvm-commits]

Author: Simon Pilgrim
Date: 2024-08-16T10:42:01+01:00
New Revision: e54f683fc5a896cdc167596c98d01db8763220b9

URL: https://github.com/llvm/llvm-project/commit/e54f683fc5a896cdc167596c98d01db8763220b9
DIFF: https://github.com/llvm/llvm-project/commit/e54f683fc5a896cdc167596c98d01db8763220b9.diff

LOG: [X86] Add shuffle tests for #104482

Added: 
    

Modified: 
    llvm/test/CodeGen/X86/vector-shuffle-128-v16.ll

Removed: 
    


################################################################################
diff  --git a/llvm/test/CodeGen/X86/vector-shuffle-128-v16.ll b/llvm/test/CodeGen/X86/vector-shuffle-128-v16.ll
index ccaaca6c44f050..fcc50041a1d829 100644
--- a/llvm/test/CodeGen/X86/vector-shuffle-128-v16.ll
+++ b/llvm/test/CodeGen/X86/vector-shuffle-128-v16.ll
@@ -2771,3 +2771,47 @@ entry:
   %vzip.i = shufflevector <16 x i8> %lane, <16 x i8> %lane3, <16 x i32> <i32 0, i32 16, i32 1, i32 17, i32 2, i32 18, i32 3, i32 19, i32 4, i32 20, i32 5, i32 21, i32 6, i32 22, i32 7, i32 23>
   ret <16 x i8> %vzip.i
 }
+
+define <8 x i16> @PR104482(<16 x i8> %i) {
+; SSE2-LABEL: PR104482:
+; SSE2:       # %bb.0:
+; SSE2-NEXT:    pxor %xmm2, %xmm2
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm0 = xmm0[8],xmm2[8],xmm0[9],xmm2[9],xmm0[10],xmm2[10],xmm0[11],xmm2[11],xmm0[12],xmm2[12],xmm0[13],xmm2[13],xmm0[14],xmm2[14],xmm0[15],xmm2[15]
+; SSE2-NEXT:    movdqa %xmm0, %xmm1
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm1 = xmm1[8],xmm2[8],xmm1[9],xmm2[9],xmm1[10],xmm2[10],xmm1[11],xmm2[11],xmm1[12],xmm2[12],xmm1[13],xmm2[13],xmm1[14],xmm2[14],xmm1[15],xmm2[15]
+; SSE2-NEXT:    pshufd {{.*#+}} xmm1 = xmm1[2,1,0,3]
+; SSE2-NEXT:    pshuflw {{.*#+}} xmm1 = xmm1[0,3,2,3,4,5,6,7]
+; SSE2-NEXT:    pshufd {{.*#+}} xmm1 = xmm1[3,0,1,2]
+; SSE2-NEXT:    movdqa {{.*#+}} xmm3 = [65535,65535,65535,65535,65535,0,65535,0]
+; SSE2-NEXT:    pand %xmm3, %xmm1
+; SSE2-NEXT:    punpcklbw {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1],xmm0[2],xmm2[2],xmm0[3],xmm2[3],xmm0[4],xmm2[4],xmm0[5],xmm2[5],xmm0[6],xmm2[6],xmm0[7],xmm2[7]
+; SSE2-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[2,1,0,3]
+; SSE2-NEXT:    pshuflw {{.*#+}} xmm0 = xmm0[0,3,2,3,4,5,6,7]
+; SSE2-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[0,3,1,2]
+; SSE2-NEXT:    pshuflw {{.*#+}} xmm0 = xmm0[2,1,0,3,4,5,6,7]
+; SSE2-NEXT:    pand %xmm3, %xmm0
+; SSE2-NEXT:    packuswb %xmm0, %xmm1
+; SSE2-NEXT:    movdqa %xmm1, %xmm0
+; SSE2-NEXT:    retq
+;
+; SSSE3-LABEL: PR104482:
+; SSSE3:       # %bb.0:
+; SSSE3-NEXT:    pshufb {{.*#+}} xmm0 = xmm0[15],zero,xmm0[14],zero,xmm0[13],zero,xmm0[12],zero,xmm0[11],zero,xmm0[10],zero,xmm0[9],zero,xmm0[8],zero
+; SSSE3-NEXT:    retq
+;
+; SSE41-LABEL: PR104482:
+; SSE41:       # %bb.0:
+; SSE41-NEXT:    pshufb {{.*#+}} xmm0 = xmm0[15],zero,xmm0[14],zero,xmm0[13],zero,xmm0[12],zero,xmm0[11],zero,xmm0[10],zero,xmm0[9],zero,xmm0[8],zero
+; SSE41-NEXT:    retq
+;
+; AVX-LABEL: PR104482:
+; AVX:       # %bb.0:
+; AVX-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[15],zero,xmm0[14],zero,xmm0[13],zero,xmm0[12],zero,xmm0[11],zero,xmm0[10],zero,xmm0[9],zero,xmm0[8],zero
+; AVX-NEXT:    retq
+  %i7 = shufflevector <16 x i8> %i, <16 x i8> <i8 poison, i8 poison, i8 poison, i8 poison, i8 poison, i8 poison, i8 poison, i8 poison, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0>, <16 x i32> <i32 8, i32 24, i32 9, i32 25, i32 10, i32 26, i32 11, i32 27, i32 12, i32 28, i32 13, i32 29, i32 14, i32 30, i32 15, i32 31>
+  %1 = bitcast <16 x i8> %i7 to <8 x i16>
+  %i10 = shufflevector <8 x i16> %1, <8 x i16> poison, <8 x i32> <i32 4, i32 5, i32 6, i32 7, i32 0, i32 1, i32 2, i32 3>
+  %i11 = shufflevector <8 x i16> %i10, <8 x i16> poison, <8 x i32> <i32 3, i32 2, i32 1, i32 0, i32 4, i32 5, i32 6, i32 7>
+  %i12 = shufflevector <8 x i16> %i11, <8 x i16> poison, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 7, i32 6, i32 5, i32 4>
+  ret <8 x i16> %i12
+}