From 070ac768ff4ddeb372ec5d91d570ddc545fceede Mon Sep 17 00:00:00 2001
From: Amara Emerson <aemerson@apple.com>
Date: Wed, 15 Aug 2018 17:46:22 +0000
Subject: [InstCombine] Fix IC trying to create a xor of pointer types.

rdar://42473741

Differential Revision: https://reviews.llvm.org/D50775

llvm-svn: 339796
---
 llvm/test/Transforms/InstCombine/xor-icmps.ll | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'llvm/test')

diff --git a/llvm/test/Transforms/InstCombine/xor-icmps.ll b/llvm/test/Transforms/InstCombine/xor-icmps.ll
index e19a061c7cc..7f0a8d8cd2a 100644
--- a/llvm/test/Transforms/InstCombine/xor-icmps.ll
+++ b/llvm/test/Transforms/InstCombine/xor-icmps.ll
@@ -158,3 +158,16 @@ define i1 @test14(i8 %A, i8 %B) {
   ret i1 %E
 }
 
+define i1 @xor_icmp_ptr(i8* %c, i8* %d) {
+; CHECK-LABEL: @xor_icmp_ptr(
+; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i8* [[C:%.*]], null
+; CHECK-NEXT:    [[CMP1:%.*]] = icmp slt i8* [[D:%.*]], null
+; CHECK-NEXT:    [[XOR:%.*]] = xor i1 [[CMP]], [[CMP1]]
+; CHECK-NEXT:    ret i1 [[XOR]]
+;
+  %cmp = icmp slt i8* %c, null
+  %cmp1 = icmp slt i8* %d, null
+  %xor = xor i1 %cmp, %cmp1
+  ret i1 %xor
+}
+
-- 
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