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; RUN: opt -objc-arc-contract -S < %s | FileCheck %s
target datalayout = "e-p:64:64:64"
declare i8* @objc_retain(i8*)
declare void @objc_release(i8*)
@x = external global i8*
; CHECK: define void @test0(
; CHECK: entry:
; CHECK-NEXT: call void @objc_storeStrong(i8** @x, i8* %p) nounwind
; CHECK-NEXT: ret void
define void @test0(i8* %p) {
entry:
%0 = tail call i8* @objc_retain(i8* %p) nounwind
%tmp = load i8** @x, align 8
store i8* %0, i8** @x, align 8
tail call void @objc_release(i8* %tmp) nounwind
ret void
}
; Don't do this if the load is volatile.
; CHECK: define void @test1(i8* %p) {
; CHECK-NEXT: entry:
; CHECK-NEXT: %0 = tail call i8* @objc_retain(i8* %p) nounwind
; CHECK-NEXT: %tmp = volatile load i8** @x, align 8
; CHECK-NEXT: store i8* %0, i8** @x, align 8
; CHECK-NEXT: tail call void @objc_release(i8* %tmp) nounwind
; CHECK-NEXT: ret void
; CHECK-NEXT: }
define void @test1(i8* %p) {
entry:
%0 = tail call i8* @objc_retain(i8* %p) nounwind
%tmp = volatile load i8** @x, align 8
store i8* %0, i8** @x, align 8
tail call void @objc_release(i8* %tmp) nounwind
ret void
}
; Don't do this if the store is volatile.
; CHECK: define void @test2(i8* %p) {
; CHECK-NEXT: entry:
; CHECK-NEXT: %0 = tail call i8* @objc_retain(i8* %p) nounwind
; CHECK-NEXT: %tmp = load i8** @x, align 8
; CHECK-NEXT: volatile store i8* %0, i8** @x, align 8
; CHECK-NEXT: tail call void @objc_release(i8* %tmp) nounwind
; CHECK-NEXT: ret void
; CHECK-NEXT: }
define void @test2(i8* %p) {
entry:
%0 = tail call i8* @objc_retain(i8* %p) nounwind
%tmp = load i8** @x, align 8
volatile store i8* %0, i8** @x, align 8
tail call void @objc_release(i8* %tmp) nounwind
ret void
}
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