-; RUN: opt %s -globalopt | llvm-dis | not grep G
+; RUN: opt < %s -globalopt -S | FileCheck %s
@G = internal global i32 17 ; <i32*> [#uses=3]
+; CHECK-NOT: @G
define void @foo() {
%V = load i32* @G ; <i32> [#uses=1]
store i32 %V, i32* @G
ret void
+; CHECK-LABEL: @foo(
+; CHECK-NEXT: ret void
}
define i32 @bar() {
%X = load i32* @G ; <i32> [#uses=1]
ret i32 %X
+; CHECK-LABEL: @bar(
+; CHECK-NEXT: ret i32 17
+}
+
+@a = internal global i64* null, align 8
+; CHECK-NOT: @a
+
+; PR13968
+define void @qux() nounwind {
+ %b = bitcast i64** @a to i8*
+ %g = getelementptr i64** @a, i32 1
+ %cmp = icmp ne i8* null, %b
+ %cmp2 = icmp eq i8* null, %b
+ %cmp3 = icmp eq i64** null, %g
+ store i64* inttoptr (i64 1 to i64*), i64** @a, align 8
+ %l = load i64** @a, align 8
+ ret void
+; CHECK-LABEL: @qux(
+; CHECK-NOT: store
+; CHECK-NOT: load
}