InstSimplify: Ignore pointer casts when constant folding compares between pointers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150690 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Transforms/InstSimplify/compare.ll b/test/Transforms/InstSimplify/compare.ll
index 0c4153f..60f5990 100644
--- a/test/Transforms/InstSimplify/compare.ll
+++ b/test/Transforms/InstSimplify/compare.ll
@@ -10,6 +10,26 @@
; CHECK: ret i1 false
}
+define i1 @bitcast() {
+; CHECK: @bitcast
+ %a = alloca i32
+ %b = alloca i64
+ %x = bitcast i32* %a to i8*
+ %y = bitcast i64* %b to i8*
+ %cmp = icmp eq i8* %x, %y
+ ret i1 %cmp
+; CHECK-NEXT: ret i1 false
+}
+
+define i1 @gep() {
+; CHECK: @gep
+ %a = alloca [3 x i8], align 8
+ %x = getelementptr inbounds [3 x i8]* %a, i32 0, i32 0
+ %cmp = icmp eq i8* %x, null
+ ret i1 %cmp
+; CHECK-NEXT: ret i1 false
+}
+
define i1 @zext(i32 %x) {
; CHECK: @zext
%e1 = zext i32 %x to i64