[llvm] r374507 - [X86] Add test case for trunc_packus_v16i32_v16i8_store to min-legal-vector-width.ll

[Craig Topper via llvm-commits]

Author: ctopper
Date: Thu Oct 10 21:02:04 2019
New Revision: 374507

URL: http://llvm.org/viewvc/llvm-project?rev=374507&view=rev
Log:
[X86] Add test case for trunc_packus_v16i32_v16i8_store to min-legal-vector-width.ll

We aren't folding the vpmovuswb into the store.

Modified:
    llvm/trunk/test/CodeGen/X86/min-legal-vector-width.ll

Modified: llvm/trunk/test/CodeGen/X86/min-legal-vector-width.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/min-legal-vector-width.ll?rev=374507&r1=374506&r2=374507&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/min-legal-vector-width.ll (original)
+++ llvm/trunk/test/CodeGen/X86/min-legal-vector-width.ll Thu Oct 10 21:02:04 2019
@@ -1080,7 +1080,7 @@ define void @vselect_split_v16i16_setcc(
   ret void
 }
 
-define <16 x i8> @trunc_packus_v16i32_v16i8(<16 x i32>* %p, <16 x i8>* %q) "min-legal-vector-width"="256" {
+define <16 x i8> @trunc_packus_v16i32_v16i8(<16 x i32>* %p) "min-legal-vector-width"="256" {
 ; CHECK-LABEL: trunc_packus_v16i32_v16i8:
 ; CHECK:       # %bb.0:
 ; CHECK-NEXT:    vmovdqa (%rdi), %ymm0
@@ -1098,6 +1098,26 @@ define <16 x i8> @trunc_packus_v16i32_v1
   ret <16 x i8> %f
 }
 
+define void @trunc_packus_v16i32_v16i8_store(<16 x i32>* %p, <16 x i8>* %q) "min-legal-vector-width"="256" {
+; CHECK-LABEL: trunc_packus_v16i32_v16i8_store:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vmovdqa (%rdi), %ymm0
+; CHECK-NEXT:    vpackusdw 32(%rdi), %ymm0, %ymm0
+; CHECK-NEXT:    vpermq {{.*#+}} ymm0 = ymm0[0,2,1,3]
+; CHECK-NEXT:    vpmovuswb %ymm0, %xmm0
+; CHECK-NEXT:    vmovdqa %xmm0, (%rsi)
+; CHECK-NEXT:    vzeroupper
+; CHECK-NEXT:    retq
+  %a = load <16 x i32>, <16 x i32>* %p
+  %b = icmp slt <16 x i32> %a, <i32 255, i32 255, i32 255, i32 255, i32 255, i32 255, i32 255, i32 255, i32 255, i32 255, i32 255, i32 255, i32 255, i32 255, i32 255, i32 255>
+  %c = select <16 x i1> %b, <16 x i32> %a, <16 x i32> <i32 255, i32 255, i32 255, i32 255, i32 255, i32 255, i32 255, i32 255, i32 255, i32 255, i32 255, i32 255, i32 255, i32 255, i32 255, i32 255>
+  %d = icmp sgt <16 x i32> %c, zeroinitializer
+  %e = select <16 x i1> %d, <16 x i32> %c, <16 x i32> zeroinitializer
+  %f = trunc <16 x i32> %e to <16 x i8>
+  store <16 x i8> %f, <16 x i8>* %q
+  ret void
+}
+
 define <32 x i8> @trunc_packus_v32i32_v32i8(<32 x i32>* %p) "min-legal-vector-width"="256" {
 ; CHECK-LABEL: trunc_packus_v32i32_v32i8:
 ; CHECK:       # %bb.0: