From 567f7f0a95b28d822ab6d65f22976a724fb05c84 Mon Sep 17 00:00:00 2001
From: Sanjay Patel <spatel@rotateright.com>
Date: Wed, 19 Sep 2018 21:28:39 +0000
Subject: [PATCH] [x86] add test for add+not vector fold; NFC

The fold uses 'isBitwiseNot()', but that's not vector-friendly currently.

llvm-svn: 342592
---
 llvm/test/CodeGen/X86/add.ll | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/llvm/test/CodeGen/X86/add.ll b/llvm/test/CodeGen/X86/add.ll
index dbf3715..9feb45a 100644
--- a/llvm/test/CodeGen/X86/add.ll
+++ b/llvm/test/CodeGen/X86/add.ll
@@ -406,6 +406,47 @@ define i32 @inc_not(i32 %a) {
   ret i32 %r
 }
 
+define <4 x i32> @inc_not_vec(<4 x i32> %a) nounwind {
+; X32-LABEL: inc_not_vec:
+; X32:       # %bb.0:
+; X32-NEXT:    pushl %edi
+; X32-NEXT:    pushl %esi
+; X32-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X32-NEXT:    xorl %ecx, %ecx
+; X32-NEXT:    xorl %edx, %edx
+; X32-NEXT:    subl {{[0-9]+}}(%esp), %edx
+; X32-NEXT:    xorl %esi, %esi
+; X32-NEXT:    subl {{[0-9]+}}(%esp), %esi
+; X32-NEXT:    xorl %edi, %edi
+; X32-NEXT:    subl {{[0-9]+}}(%esp), %edi
+; X32-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X32-NEXT:    movl %ecx, 12(%eax)
+; X32-NEXT:    movl %edi, 8(%eax)
+; X32-NEXT:    movl %esi, 4(%eax)
+; X32-NEXT:    movl %edx, (%eax)
+; X32-NEXT:    popl %esi
+; X32-NEXT:    popl %edi
+; X32-NEXT:    retl $4
+;
+; X64-LINUX-LABEL: inc_not_vec:
+; X64-LINUX:       # %bb.0:
+; X64-LINUX-NEXT:    pcmpeqd %xmm1, %xmm1
+; X64-LINUX-NEXT:    pxor %xmm1, %xmm0
+; X64-LINUX-NEXT:    psubd %xmm1, %xmm0
+; X64-LINUX-NEXT:    retq
+;
+; X64-WIN32-LABEL: inc_not_vec:
+; X64-WIN32:       # %bb.0:
+; X64-WIN32-NEXT:    pcmpeqd %xmm1, %xmm1
+; X64-WIN32-NEXT:    movdqa (%rcx), %xmm0
+; X64-WIN32-NEXT:    pxor %xmm1, %xmm0
+; X64-WIN32-NEXT:    psubd %xmm1, %xmm0
+; X64-WIN32-NEXT:    retq
+  %nota = xor <4 x i32> %a, <i32 -1, i32 -1, i32 -1, i32 -1>
+  %r = add <4 x i32> %nota, <i32 1, i32 1, i32 1, i32 1>
+  ret <4 x i32> %r
+}
+
 define void @uaddo1_not(i32 %a, i32* %p0, i1* %p1) {
 ; X32-LABEL: uaddo1_not:
 ; X32:       # %bb.0:
-- 
2.7.4