[llvm] 6569b7f - [X86][AVX] Add test case for PR51281

[Simon Pilgrim via llvm-commits]

Author: Simon Pilgrim
Date: 2021-07-30T14:12:56+01:00
New Revision: 6569b7f90239b5932465a1c6936632b4a9527d66

URL: https://github.com/llvm/llvm-project/commit/6569b7f90239b5932465a1c6936632b4a9527d66
DIFF: https://github.com/llvm/llvm-project/commit/6569b7f90239b5932465a1c6936632b4a9527d66.diff

LOG: [X86][AVX] Add test case for PR51281

Added: 
    llvm/test/CodeGen/X86/pr51281.ll

Modified: 
    

Removed: 
    


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diff  --git a/llvm/test/CodeGen/X86/pr51281.ll b/llvm/test/CodeGen/X86/pr51281.ll
new file mode 100644
index 0000000000000..116e6d1470f83
--- /dev/null
+++ b/llvm/test/CodeGen/X86/pr51281.ll
@@ -0,0 +1,39 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --no_x86_scrub_mem_shuffle
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx | FileCheck %s
+
+; CHECK: .LCPI0_0:
+; CHECK-NEXT: .long   0x00000000
+; CHECK-NEXT: .zero   4
+; CHECK-NEXT: .long   0x3eb5dbc6
+; CHECK-NEXT: .long   0x3eb5dbc6
+; CHECK-NEXT: .zero   4
+; CHECK-NEXT: .long   0x3eb5dbc6
+; CHECK-NEXT: .zero   4
+; CHECK-NEXT: .zero   4
+
+; CHECK: .LCPI0_1:
+; CHECK-NEXT: .long   3
+; CHECK-NEXT: .long   3
+; CHECK-NEXT: .long   1
+; CHECK-NEXT: .long   1
+; CHECK-NEXT: .long   6
+; CHECK-NEXT: .long   7
+; CHECK-NEXT: .long   6
+; CHECK-NEXT: .long   4
+
+define <16 x float> @PR51281(<8 x float> %a0) {
+; CHECK-LABEL: PR51281:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vextractf128 $1, %ymm0, %xmm1
+; CHECK-NEXT:    vshufps {{.*#+}} xmm2 = xmm0[1,0],xmm1[3,0]
+; CHECK-NEXT:    vshufps {{.*#+}} xmm1 = xmm2[2,0],xmm1[1,3]
+; CHECK-NEXT:    vmovsldup {{.*#+}} xmm2 = xmm0[0,0,2,2]
+; CHECK-NEXT:    vinsertf128 $1, %xmm1, %ymm2, %ymm1
+; CHECK-NEXT:    vblendps $141, {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %ymm1, %ymm1 # ymm1 = mem[0],ymm1[1],mem[2,3],ymm1[4,5,6],mem[7]
+; CHECK-NEXT:    vperm2f128 {{.*#+}} ymm2 = ymm0[2,3,0,1]
+; CHECK-NEXT:    vblendps {{.*#+}} ymm0 = ymm2[0],ymm0[1],ymm2[2,3,4,5],ymm0[6],ymm2[7]
+; CHECK-NEXT:    vpermilps {{.*#+}} ymm0 = ymm0[3,3,1,1,6,7,6,4]
+; CHECK-NEXT:    retq
+  %shuffle = shufflevector <8 x float> %a0, <8 x float> <float poison, float 0x3FD6BB78C0000000, float poison, float poison, float poison, float poison, float 0.000000e+00, float poison>, <16 x i32> <i32 7, i32 7, i32 1, i32 1, i32 6, i32 3, i32 6, i32 0, i32 14, i32 0, i32 9, i32 9, i32 7, i32 1, i32 5, i32 9>
+  ret <16 x float> %shuffle
+}