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; RUN: opt < %s -globalopt -S | FileCheck %s
@G = internal global i32 17 ; <i32*> [#uses=3]
; CHECK-NOT: @G
define void @foo() {
%V = load i32, 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, 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*, 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*, i64** @a, align 8
ret void
; CHECK-LABEL: @qux(
; CHECK-NOT: store
; CHECK-NOT: load
}
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