From: Simon Pilgrim <llvm-dev@redking.me.uk>
Date: Mon, 30 Oct 2017 19:19:58 +0000 (+0000)
Subject: [X86][SSE] Add another computeKnownBits test showing missing VSELECT demandedelts... 
X-Git-Tag: llvmorg-6.0.0-rc1~4567
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=28b6219bd635a85a3d82aba1ac0549866a979abb;p=platform%2Fupstream%2Fllvm.git

[X86][SSE] Add another computeKnownBits test showing missing VSELECT demandedelts support

llvm-svn: 316945
---

diff --git a/llvm/test/CodeGen/X86/known-bits-vector.ll b/llvm/test/CodeGen/X86/known-bits-vector.ll
index bf9044d..67c0b6a 100644
--- a/llvm/test/CodeGen/X86/known-bits-vector.ll
+++ b/llvm/test/CodeGen/X86/known-bits-vector.ll
@@ -605,6 +605,50 @@ define <4 x float> @knownbits_or_abs_uitofp(<4 x i32> %a0) {
   ret <4 x float> %6
 }
 
+define <4 x float> @knownbits_and_select_shuffle_uitofp(<4 x i32> %a0, <4 x i32> %a1, <4 x i32> %a2, <4 x i32> %a3) nounwind {
+; X32-LABEL: knownbits_and_select_shuffle_uitofp:
+; X32:       # BB#0:
+; X32-NEXT:    pushl %ebp
+; X32-NEXT:    movl %esp, %ebp
+; X32-NEXT:    andl $-16, %esp
+; X32-NEXT:    subl $16, %esp
+; X32-NEXT:    vmovaps 8(%ebp), %xmm3
+; X32-NEXT:    vandps {{\.LCPI.*}}, %xmm2, %xmm2
+; X32-NEXT:    vandps {{\.LCPI.*}}, %xmm3, %xmm3
+; X32-NEXT:    vpcmpeqd %xmm1, %xmm0, %xmm0
+; X32-NEXT:    vblendvps %xmm0, %xmm2, %xmm3, %xmm0
+; X32-NEXT:    vpermilps {{.*#+}} xmm0 = xmm0[0,0,2,2]
+; X32-NEXT:    vpblendw {{.*#+}} xmm1 = xmm0[0],mem[1],xmm0[2],mem[3],xmm0[4],mem[5],xmm0[6],mem[7]
+; X32-NEXT:    vpsrld $16, %xmm0, %xmm0
+; X32-NEXT:    vpblendw {{.*#+}} xmm0 = xmm0[0],mem[1],xmm0[2],mem[3],xmm0[4],mem[5],xmm0[6],mem[7]
+; X32-NEXT:    vaddps {{\.LCPI.*}}, %xmm0, %xmm0
+; X32-NEXT:    vaddps %xmm0, %xmm1, %xmm0
+; X32-NEXT:    movl %ebp, %esp
+; X32-NEXT:    popl %ebp
+; X32-NEXT:    retl
+;
+; X64-LABEL: knownbits_and_select_shuffle_uitofp:
+; X64:       # BB#0:
+; X64-NEXT:    vandps {{.*}}(%rip), %xmm2, %xmm2
+; X64-NEXT:    vandps {{.*}}(%rip), %xmm3, %xmm3
+; X64-NEXT:    vpcmpeqd %xmm1, %xmm0, %xmm0
+; X64-NEXT:    vblendvps %xmm0, %xmm2, %xmm3, %xmm0
+; X64-NEXT:    vpermilps {{.*#+}} xmm0 = xmm0[0,0,2,2]
+; X64-NEXT:    vpblendw {{.*#+}} xmm1 = xmm0[0],mem[1],xmm0[2],mem[3],xmm0[4],mem[5],xmm0[6],mem[7]
+; X64-NEXT:    vpsrld $16, %xmm0, %xmm0
+; X64-NEXT:    vpblendw {{.*#+}} xmm0 = xmm0[0],mem[1],xmm0[2],mem[3],xmm0[4],mem[5],xmm0[6],mem[7]
+; X64-NEXT:    vaddps {{.*}}(%rip), %xmm0, %xmm0
+; X64-NEXT:    vaddps %xmm0, %xmm1, %xmm0
+; X64-NEXT:    retq
+  %1 = and <4 x i32> %a2, <i32 65535, i32 -1, i32 255, i32 -1>
+  %2 = and <4 x i32> %a3, <i32 255, i32 -1, i32 65535, i32 -1>
+  %3 = icmp eq <4 x i32> %a0, %a1
+  %4 = select <4 x i1> %3, <4 x i32> %1, <4 x i32> %2
+  %5 = shufflevector <4 x i32> %4, <4 x i32> undef, <4 x i32> <i32 0, i32 0, i32 2, i32 2>
+  %6 = uitofp <4 x i32> %5 to <4 x float>
+  ret <4 x float> %6
+}
+
 define <4 x float> @knownbits_lshr_and_select_shuffle_uitofp(<4 x i32> %a0, <4 x i32> %a1, <4 x i32> %a2, <4 x i32> %a3) nounwind {
 ; X32-LABEL: knownbits_lshr_and_select_shuffle_uitofp:
 ; X32:       # BB#0: