[llvm] 6a28fa3 - [X86] Add test coverage for shuffle with freeze

[Simon Pilgrim via llvm-commits]

Author: Simon Pilgrim
Date: 2022-10-22T20:12:41+01:00
New Revision: 6a28fa35302cf58e26c943b0a27e18782523abf2

URL: https://github.com/llvm/llvm-project/commit/6a28fa35302cf58e26c943b0a27e18782523abf2
DIFF: https://github.com/llvm/llvm-project/commit/6a28fa35302cf58e26c943b0a27e18782523abf2.diff

LOG: [X86] Add test coverage for shuffle with freeze

Added: 
    

Modified: 
    llvm/test/CodeGen/X86/freeze-vector.ll

Removed: 
    


################################################################################
diff  --git a/llvm/test/CodeGen/X86/freeze-vector.ll b/llvm/test/CodeGen/X86/freeze-vector.ll
index af34e5667fa9..c30805979c2c 100644
--- a/llvm/test/CodeGen/X86/freeze-vector.ll
+++ b/llvm/test/CodeGen/X86/freeze-vector.ll
@@ -12,3 +12,15 @@ define <4 x i32> @freeze_insert_subvector(<8 x i32> %a0) nounwind {
   %z = shufflevector <8 x i32> %y, <8 x i32> poison, <4 x i32> <i32 4, i32 5, i32 6, i32 7>
   ret <4 x i32> %z
 }
+
+define <4 x i32> @freeze_shufflevector(<4 x i32> %a0) nounwind {
+; CHECK-LABEL: freeze_shufflevector:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vpermilps {{.*#+}} xmm0 = xmm0[3,2,1,0]
+; CHECK-NEXT:    vpermilps {{.*#+}} xmm0 = xmm0[3,2,1,0]
+; CHECK-NEXT:    ret{{[l|q]}}
+  %x = shufflevector <4 x i32> %a0, <4 x i32> poison, <4 x i32> <i32 3, i32 2, i32 1, i32 0>
+  %y = freeze <4 x i32> %x
+  %z = shufflevector <4 x i32> %y, <4 x i32> poison, <4 x i32> <i32 3, i32 2, i32 1, i32 0>
+  ret <4 x i32> %z
+}