From a0dee61df34fc819aeb26607bd099ef2ae61c903 Mon Sep 17 00:00:00 2001
From: Simon Pilgrim <llvm-dev@redking.me.uk>
Date: Thu, 10 Nov 2016 22:34:12 +0000
Subject: [PATCH] [X86] Updated knownbits vector ADD/SUB test

In preparation for demandedelts support

llvm-svn: 286513
---
 llvm/test/CodeGen/X86/known-bits-vector.ll | 54 ++++++++++++++++++++----------
 1 file changed, 37 insertions(+), 17 deletions(-)

diff --git a/llvm/test/CodeGen/X86/known-bits-vector.ll b/llvm/test/CodeGen/X86/known-bits-vector.ll
index c31dff3..967447c 100644
--- a/llvm/test/CodeGen/X86/known-bits-vector.ll
+++ b/llvm/test/CodeGen/X86/known-bits-vector.ll
@@ -204,36 +204,56 @@ define <4 x i32> @knownbits_mask_trunc_shuffle_shl(<4 x i64> %a0) nounwind {
   ret <4 x i32> %4
 }
 
-define <4 x i32> @knownbits_add_lshr(<4 x i32> %a0, <4 x i32> %a1) nounwind {
-; X32-LABEL: knownbits_add_lshr:
+define <4 x i32> @knownbits_mask_add_shuffle_lshr(<4 x i32> %a0, <4 x i32> %a1) nounwind {
+; X32-LABEL: knownbits_mask_add_shuffle_lshr:
 ; X32:       # BB#0:
-; X32-NEXT:    vxorps %xmm0, %xmm0, %xmm0
+; X32-NEXT:    vmovdqa {{.*#+}} xmm2 = [32767,4294967295,4294967295,32767]
+; X32-NEXT:    vpand %xmm2, %xmm0, %xmm0
+; X32-NEXT:    vpand %xmm2, %xmm1, %xmm1
+; X32-NEXT:    vpaddd %xmm1, %xmm0, %xmm0
+; X32-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[0,0,3,3]
+; X32-NEXT:    vpsrld $17, %xmm0, %xmm0
 ; X32-NEXT:    retl
 ;
-; X64-LABEL: knownbits_add_lshr:
+; X64-LABEL: knownbits_mask_add_shuffle_lshr:
 ; X64:       # BB#0:
-; X64-NEXT:    vxorps %xmm0, %xmm0, %xmm0
+; X64-NEXT:    vmovdqa {{.*#+}} xmm2 = [32767,4294967295,4294967295,32767]
+; X64-NEXT:    vpand %xmm2, %xmm0, %xmm0
+; X64-NEXT:    vpand %xmm2, %xmm1, %xmm1
+; X64-NEXT:    vpaddd %xmm1, %xmm0, %xmm0
+; X64-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[0,0,3,3]
+; X64-NEXT:    vpsrld $17, %xmm0, %xmm0
 ; X64-NEXT:    retq
-  %1 = and <4 x i32> %a0, <i32 32767, i32 32767, i32 32767, i32 32767>
-  %2 = and <4 x i32> %a1, <i32 32767, i32 32767, i32 32767, i32 32767>
+  %1 = and <4 x i32> %a0, <i32 32767, i32 -1, i32 -1, i32 32767>
+  %2 = and <4 x i32> %a1, <i32 32767, i32 -1, i32 -1, i32 32767>
   %3 = add <4 x i32> %1, %2
-  %4 = lshr <4 x i32> %3, <i32 17, i32 17, i32 17, i32 17>
-  ret <4 x i32> %4
+  %4 = shufflevector <4 x i32> %3, <4 x i32> undef, <4 x i32> <i32 0, i32 0, i32 3, i32 3>
+  %5 = lshr <4 x i32> %4, <i32 17, i32 17, i32 17, i32 17>
+  ret <4 x i32> %5
 }
 
-define <4 x i32> @knownbits_sub_lshr(<4 x i32> %a0) nounwind {
-; X32-LABEL: knownbits_sub_lshr:
+define <4 x i32> @knownbits_mask_sub_shuffle_lshr(<4 x i32> %a0) nounwind {
+; X32-LABEL: knownbits_mask_sub_shuffle_lshr:
 ; X32:       # BB#0:
-; X32-NEXT:    vxorps %xmm0, %xmm0, %xmm0
+; X32-NEXT:    vpand {{\.LCPI.*}}, %xmm0, %xmm0
+; X32-NEXT:    vmovdqa {{.*#+}} xmm1 = [255,255,255,255]
+; X32-NEXT:    vpsubd %xmm0, %xmm1, %xmm0
+; X32-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[0,0,3,3]
+; X32-NEXT:    vpsrld $22, %xmm0, %xmm0
 ; X32-NEXT:    retl
 ;
-; X64-LABEL: knownbits_sub_lshr:
+; X64-LABEL: knownbits_mask_sub_shuffle_lshr:
 ; X64:       # BB#0:
-; X64-NEXT:    vxorps %xmm0, %xmm0, %xmm0
+; X64-NEXT:    vpand {{.*}}(%rip), %xmm0, %xmm0
+; X64-NEXT:    vmovdqa {{.*#+}} xmm1 = [255,255,255,255]
+; X64-NEXT:    vpsubd %xmm0, %xmm1, %xmm0
+; X64-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[0,0,3,3]
+; X64-NEXT:    vpsrld $22, %xmm0, %xmm0
 ; X64-NEXT:    retq
-  %1 = and <4 x i32> %a0, <i32 15, i32 15, i32 15, i32 15>
+  %1 = and <4 x i32> %a0, <i32 15, i32 -1, i32 -1, i32 15>
   %2 = sub <4 x i32> <i32 255, i32 255, i32 255, i32 255>, %1
-  %3 = lshr <4 x i32> %2, <i32 22, i32 22, i32 22, i32 22>
-  ret <4 x i32> %3
+  %3 = shufflevector <4 x i32> %2, <4 x i32> undef, <4 x i32> <i32 0, i32 0, i32 3, i32 3>
+  %4 = lshr <4 x i32> %3, <i32 22, i32 22, i32 22, i32 22>
+  ret <4 x i32> %4
 
 }
-- 
2.7.4