mirror of
https://github.com/c64scene-ar/llvm-6502.git
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9fbd318d36
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133108 91177308-0d34-0410-b5e6-96231b3b80d8
60 lines
1.7 KiB
LLVM
60 lines
1.7 KiB
LLVM
; RUN: opt -objc-arc-contract -S < %s | FileCheck %s
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target datalayout = "e-p:64:64:64"
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declare i8* @objc_retain(i8*)
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declare void @objc_release(i8*)
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@x = external global i8*
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; CHECK: define void @test0(
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; CHECK: entry:
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; CHECK-NEXT: call void @objc_storeStrong(i8** @x, i8* %p) nounwind
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; CHECK-NEXT: ret void
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define void @test0(i8* %p) {
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entry:
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%0 = tail call i8* @objc_retain(i8* %p) nounwind
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%tmp = load i8** @x, align 8
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store i8* %0, i8** @x, align 8
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tail call void @objc_release(i8* %tmp) nounwind
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ret void
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}
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; Don't do this if the load is volatile.
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; CHECK: define void @test1(i8* %p) {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: %0 = tail call i8* @objc_retain(i8* %p) nounwind
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; CHECK-NEXT: %tmp = volatile load i8** @x, align 8
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; CHECK-NEXT: store i8* %0, i8** @x, align 8
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; CHECK-NEXT: tail call void @objc_release(i8* %tmp) nounwind
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; CHECK-NEXT: ret void
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; CHECK-NEXT: }
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define void @test1(i8* %p) {
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entry:
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%0 = tail call i8* @objc_retain(i8* %p) nounwind
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%tmp = volatile load i8** @x, align 8
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store i8* %0, i8** @x, align 8
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tail call void @objc_release(i8* %tmp) nounwind
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ret void
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}
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; Don't do this if the store is volatile.
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; CHECK: define void @test2(i8* %p) {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: %0 = tail call i8* @objc_retain(i8* %p) nounwind
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; CHECK-NEXT: %tmp = load i8** @x, align 8
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; CHECK-NEXT: volatile store i8* %0, i8** @x, align 8
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; CHECK-NEXT: tail call void @objc_release(i8* %tmp) nounwind
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; CHECK-NEXT: ret void
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; CHECK-NEXT: }
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define void @test2(i8* %p) {
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entry:
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%0 = tail call i8* @objc_retain(i8* %p) nounwind
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%tmp = load i8** @x, align 8
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volatile store i8* %0, i8** @x, align 8
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tail call void @objc_release(i8* %tmp) nounwind
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ret void
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}
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