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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes='default<O2>' -S < %s | FileCheck %s
@a = internal global i32 0, align 4
@c = internal global ptr @b, align 8
@b = internal global ptr null, align 8
@e = internal global ptr @d, align 8
@d = internal global i32 0, align 4
define i32 @main() {
; CHECK-LABEL: @main(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = load ptr, ptr @e, align 8
; CHECK-NEXT: store i32 0, ptr [[TMP0]], align 4
; CHECK-NEXT: store ptr null, ptr @e, align 8
; CHECK-NEXT: ret i32 0
;
entry:
%h = alloca ptr, align 8
%i = alloca ptr, align 8
%j = alloca ptr, align 8
store ptr @a, ptr %h, align 8
store ptr @a, ptr %j, align 8
%0 = load ptr, ptr %j, align 8
store i32 1, ptr %0, align 4
store ptr @a, ptr %i, align 8
%1 = load ptr, ptr %i, align 8
%2 = load ptr, ptr @c, align 8
store ptr %1, ptr %2, align 8
%3 = load ptr, ptr %h, align 8
%call = call ptr @bar(ptr %3)
ret i32 0
}
define internal ptr @bar(ptr %g) {
entry:
%g.addr = alloca ptr, align 8
store ptr %g, ptr %g.addr, align 8
%0 = load ptr, ptr @e, align 8
store i32 0, ptr %0, align 4
%1 = load ptr, ptr %g.addr, align 8
%2 = load i32, ptr %1, align 4
%tobool = icmp ne i32 %2, 0
br i1 %tobool, label %if.end, label %if.then
if.then: ; preds = %entry
call void @foo()
br label %if.end
if.end: ; preds = %if.then, %entry
store ptr null, ptr @e, align 8
%3 = load ptr, ptr @b, align 8
ret ptr %3
}
declare void @foo()
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