From 8b9e545477c64209aeeaa352d485cb9f317f1adb Mon Sep 17 00:00:00 2001
From: Simon Pilgrim <llvm-dev@redking.me.uk>
Date: Thu, 16 Aug 2018 17:07:41 +0000
Subject: [PATCH] [X86][SSE] Add sdiv by nonuniform constant vector test
 containing -1/+1 and all-bits style constants

llvm-svn: 339901
---
 llvm/test/CodeGen/X86/combine-sdiv.ll | 125 ++++++++++++++++++++++++++++++++++
 1 file changed, 125 insertions(+)

diff --git a/llvm/test/CodeGen/X86/combine-sdiv.ll b/llvm/test/CodeGen/X86/combine-sdiv.ll
index 8b721c6..8704343 100644
--- a/llvm/test/CodeGen/X86/combine-sdiv.ll
+++ b/llvm/test/CodeGen/X86/combine-sdiv.ll
@@ -2953,3 +2953,128 @@ define <8 x i16> @combine_vec_sdiv_nonuniform5(<8 x i16> %x) {
   %1 = sdiv <8 x i16> %x, <i16 -510, i16 -24, i16 -23, i16 3, i16 22, i16 25, i16 255, i16 511>
   ret <8 x i16> %1
 }
+
+define <8 x i16> @combine_vec_sdiv_nonuniform6(<8 x i16> %x) {
+; SSE-LABEL: combine_vec_sdiv_nonuniform6:
+; SSE:       # %bb.0:
+; SSE-NEXT:    pextrw $5, %xmm0, %eax
+; SSE-NEXT:    movswl %ax, %ecx
+; SSE-NEXT:    imull $-32639, %ecx, %ecx # imm = 0x8081
+; SSE-NEXT:    shrl $16, %ecx
+; SSE-NEXT:    addl %eax, %ecx
+; SSE-NEXT:    movzwl %cx, %eax
+; SSE-NEXT:    sarw $7, %cx
+; SSE-NEXT:    shrl $15, %eax
+; SSE-NEXT:    addl %ecx, %eax
+; SSE-NEXT:    pextrw $2, %xmm0, %ecx
+; SSE-NEXT:    movswl %cx, %edx
+; SSE-NEXT:    imull $32703, %edx, %edx # imm = 0x7FBF
+; SSE-NEXT:    shrl $16, %edx
+; SSE-NEXT:    subl %ecx, %edx
+; SSE-NEXT:    movzwl %dx, %ecx
+; SSE-NEXT:    sarw $8, %dx
+; SSE-NEXT:    shrl $15, %ecx
+; SSE-NEXT:    addl %edx, %ecx
+; SSE-NEXT:    pextrw $1, %xmm0, %edx
+; SSE-NEXT:    movl %edx, %esi
+; SSE-NEXT:    sarw $15, %si
+; SSE-NEXT:    movzwl %si, %esi
+; SSE-NEXT:    shrl $7, %esi
+; SSE-NEXT:    addl %edx, %esi
+; SSE-NEXT:    sarw $9, %si
+; SSE-NEXT:    negl %esi
+; SSE-NEXT:    pextrw $0, %xmm0, %edx
+; SSE-NEXT:    xorl %edi, %edi
+; SSE-NEXT:    cmpl $32768, %edx # imm = 0x8000
+; SSE-NEXT:    sete %dil
+; SSE-NEXT:    movd %edi, %xmm1
+; SSE-NEXT:    pinsrw $1, %esi, %xmm1
+; SSE-NEXT:    pinsrw $2, %ecx, %xmm1
+; SSE-NEXT:    pextrw $3, %xmm0, %ecx
+; SSE-NEXT:    negl %ecx
+; SSE-NEXT:    pinsrw $3, %ecx, %xmm1
+; SSE-NEXT:    pblendw {{.*#+}} xmm1 = xmm1[0,1,2,3],xmm0[4],xmm1[5,6,7]
+; SSE-NEXT:    pinsrw $5, %eax, %xmm1
+; SSE-NEXT:    pextrw $6, %xmm0, %eax
+; SSE-NEXT:    movl %eax, %ecx
+; SSE-NEXT:    sarw $15, %cx
+; SSE-NEXT:    movzwl %cx, %ecx
+; SSE-NEXT:    shrl $7, %ecx
+; SSE-NEXT:    addl %eax, %ecx
+; SSE-NEXT:    sarw $9, %cx
+; SSE-NEXT:    pinsrw $6, %ecx, %xmm1
+; SSE-NEXT:    pextrw $7, %xmm0, %eax
+; SSE-NEXT:    cwtl
+; SSE-NEXT:    movl %eax, %ecx
+; SSE-NEXT:    shll $14, %ecx
+; SSE-NEXT:    addl %eax, %ecx
+; SSE-NEXT:    movl %ecx, %eax
+; SSE-NEXT:    shrl $31, %eax
+; SSE-NEXT:    sarl $29, %ecx
+; SSE-NEXT:    addl %eax, %ecx
+; SSE-NEXT:    pinsrw $7, %ecx, %xmm1
+; SSE-NEXT:    movdqa %xmm1, %xmm0
+; SSE-NEXT:    retq
+;
+; AVX-LABEL: combine_vec_sdiv_nonuniform6:
+; AVX:       # %bb.0:
+; AVX-NEXT:    vpextrw $5, %xmm0, %eax
+; AVX-NEXT:    movswl %ax, %ecx
+; AVX-NEXT:    imull $-32639, %ecx, %ecx # imm = 0x8081
+; AVX-NEXT:    shrl $16, %ecx
+; AVX-NEXT:    addl %eax, %ecx
+; AVX-NEXT:    movzwl %cx, %eax
+; AVX-NEXT:    sarw $7, %cx
+; AVX-NEXT:    shrl $15, %eax
+; AVX-NEXT:    addl %ecx, %eax
+; AVX-NEXT:    vpextrw $2, %xmm0, %ecx
+; AVX-NEXT:    movswl %cx, %edx
+; AVX-NEXT:    imull $32703, %edx, %edx # imm = 0x7FBF
+; AVX-NEXT:    shrl $16, %edx
+; AVX-NEXT:    subl %ecx, %edx
+; AVX-NEXT:    movzwl %dx, %ecx
+; AVX-NEXT:    sarw $8, %dx
+; AVX-NEXT:    shrl $15, %ecx
+; AVX-NEXT:    addl %edx, %ecx
+; AVX-NEXT:    vpextrw $1, %xmm0, %edx
+; AVX-NEXT:    movl %edx, %esi
+; AVX-NEXT:    sarw $15, %si
+; AVX-NEXT:    movzwl %si, %esi
+; AVX-NEXT:    shrl $7, %esi
+; AVX-NEXT:    addl %edx, %esi
+; AVX-NEXT:    sarw $9, %si
+; AVX-NEXT:    negl %esi
+; AVX-NEXT:    vpextrw $0, %xmm0, %edx
+; AVX-NEXT:    xorl %edi, %edi
+; AVX-NEXT:    cmpl $32768, %edx # imm = 0x8000
+; AVX-NEXT:    sete %dil
+; AVX-NEXT:    vmovd %edi, %xmm1
+; AVX-NEXT:    vpinsrw $1, %esi, %xmm1, %xmm1
+; AVX-NEXT:    vpinsrw $2, %ecx, %xmm1, %xmm1
+; AVX-NEXT:    vpextrw $3, %xmm0, %ecx
+; AVX-NEXT:    negl %ecx
+; AVX-NEXT:    vpinsrw $3, %ecx, %xmm1, %xmm1
+; AVX-NEXT:    vpblendw {{.*#+}} xmm1 = xmm1[0,1,2,3],xmm0[4],xmm1[5,6,7]
+; AVX-NEXT:    vpinsrw $5, %eax, %xmm1, %xmm1
+; AVX-NEXT:    vpextrw $6, %xmm0, %eax
+; AVX-NEXT:    movl %eax, %ecx
+; AVX-NEXT:    sarw $15, %cx
+; AVX-NEXT:    movzwl %cx, %ecx
+; AVX-NEXT:    shrl $7, %ecx
+; AVX-NEXT:    addl %eax, %ecx
+; AVX-NEXT:    sarw $9, %cx
+; AVX-NEXT:    vpinsrw $6, %ecx, %xmm1, %xmm1
+; AVX-NEXT:    vpextrw $7, %xmm0, %eax
+; AVX-NEXT:    cwtl
+; AVX-NEXT:    movl %eax, %ecx
+; AVX-NEXT:    shll $14, %ecx
+; AVX-NEXT:    addl %eax, %ecx
+; AVX-NEXT:    movl %ecx, %eax
+; AVX-NEXT:    shrl $31, %eax
+; AVX-NEXT:    sarl $29, %ecx
+; AVX-NEXT:    addl %eax, %ecx
+; AVX-NEXT:    vpinsrw $7, %ecx, %xmm1, %xmm0
+; AVX-NEXT:    retq
+  %1 = sdiv <8 x i16> %x, <i16 -32768, i16 -512, i16 -511, i16 -1, i16 1, i16 255, i16 512, i16 32767>
+  ret <8 x i16> %1
+}
-- 
2.7.4