[llvm] r374486 - [X86] Update trunc_packus_v32i32_v32i8 test in min-legal-vector-width.ll to use a load for the large type and add the min-legal-vector-width attribute.

[Craig Topper via llvm-commits]

Author: ctopper
Date: Thu Oct 10 17:38:41 2019
New Revision: 374486

URL: http://llvm.org/viewvc/llvm-project?rev=374486&view=rev
Log:
[X86] Update trunc_packus_v32i32_v32i8 test in min-legal-vector-width.ll to use a load for the large type and add the min-legal-vector-width attribute.

The attribute is needed to avoid zmm registers. Using memory
avoids argument splitting for large vectors.

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=374486&r1=374485&r2=374486&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 17:38:41 2019
@@ -1098,21 +1098,28 @@ define <16 x i8> @trunc_packus_v16i32_v1
   ret <16 x i8> %f
 }
 
-define <32 x i8> @trunc_packus_v32i32_v32i8(<32 x i32> %a0) {
+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:
-; CHECK-NEXT:    vpxor %xmm2, %xmm2, %xmm2
-; CHECK-NEXT:    vpmaxsd %zmm2, %zmm0, %zmm0
-; CHECK-NEXT:    vpmovusdb %zmm0, %xmm0
-; CHECK-NEXT:    vpmaxsd %zmm2, %zmm1, %zmm1
-; CHECK-NEXT:    vpmovusdb %zmm1, %xmm1
+; CHECK-NEXT:    vpxor %xmm0, %xmm0, %xmm0
+; CHECK-NEXT:    vpmaxsd 96(%rdi), %ymm0, %ymm1
+; CHECK-NEXT:    vpmovusdb %ymm1, %xmm1
+; CHECK-NEXT:    vpmaxsd 64(%rdi), %ymm0, %ymm2
+; CHECK-NEXT:    vpmovusdb %ymm2, %xmm2
+; CHECK-NEXT:    vpunpcklqdq {{.*#+}} xmm1 = xmm2[0],xmm1[0]
+; CHECK-NEXT:    vpmaxsd 32(%rdi), %ymm0, %ymm2
+; CHECK-NEXT:    vpmovusdb %ymm2, %xmm2
+; CHECK-NEXT:    vpmaxsd (%rdi), %ymm0, %ymm0
+; CHECK-NEXT:    vpmovusdb %ymm0, %xmm0
+; CHECK-NEXT:    vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm2[0]
 ; CHECK-NEXT:    vinserti128 $1, %xmm1, %ymm0, %ymm0
 ; CHECK-NEXT:    retq
-  %1 = icmp slt <32 x i32> %a0, <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, 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>
-  %2 = select <32 x i1> %1, <32 x i32> %a0, <32 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, 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>
-  %3 = icmp sgt <32 x i32> %2, zeroinitializer
-  %4 = select <32 x i1> %3, <32 x i32> %2, <32 x i32> zeroinitializer
-  %5 = trunc <32 x i32> %4 to <32 x i8>
-  ret <32 x i8> %5
+  %a = load <32 x i32>, <32 x i32>* %p
+  %b = icmp slt <32 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, 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 <32 x i1> %b, <32 x i32> %a, <32 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, 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 <32 x i32> %c, zeroinitializer
+  %e = select <32 x i1> %d, <32 x i32> %c, <32 x i32> zeroinitializer
+  %f = trunc <32 x i32> %e to <32 x i8>
+  ret <32 x i8> %f
 }