mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-30 02:32:08 +00:00
60 lines
1.7 KiB
LLVM
60 lines
1.7 KiB
LLVM
|
; RUN: opt -S -objc-arc < %s | FileCheck %s
|
||
|
|
; rdar://10210274
|
||
|
|
|
||
|
|
%0 = type opaque
|
||
|
|
|
||
|
|
declare i8* @objc_retain(i8*)
|
||
|
|
|
||
|
|
declare void @objc_release(i8*)
|
||
|
|
|
||
|
|
declare i8* @objc_autoreleaseReturnValue(i8*)
|
||
|
|
|
||
|
|
; Don't delete the autorelease.
|
||
|
|
|
||
|
|
; CHECK: define %0* @test0(
|
||
|
|
; CHECK: @objc_retain
|
||
|
|
; CHECK: .lr.ph:
|
||
|
|
; CHECK-NOT: @objc_r
|
||
|
|
; CHECK: @objc_autoreleaseReturnValue
|
||
|
|
; CHECK-NOT: @objc_
|
||
|
|
; CHECK: }
|
||
|
|
define %0* @test0(%0* %buffer) nounwind {
|
||
|
|
%1 = bitcast %0* %buffer to i8*
|
||
|
|
%2 = tail call i8* @objc_retain(i8* %1) nounwind
|
||
|
|
br i1 undef, label %.lr.ph, label %._crit_edge
|
||
|
|
|
||
|
|
.lr.ph: ; preds = %.lr.ph, %0
|
||
|
|
br i1 false, label %.lr.ph, label %._crit_edge
|
||
|
|
|
||
|
|
._crit_edge: ; preds = %.lr.ph, %0
|
||
|
|
%3 = tail call i8* @objc_retain(i8* %1) nounwind
|
||
|
|
tail call void @objc_release(i8* %1) nounwind, !clang.imprecise_release !0
|
||
|
|
%4 = tail call i8* @objc_autoreleaseReturnValue(i8* %1) nounwind
|
||
|
|
ret %0* %buffer
|
||
|
|
}
|
||
|
|
|
||
|
|
; Do delete the autorelease, even with the retain in a different block.
|
||
|
|
|
||
|
|
; CHECK: define %0* @test1(
|
||
|
|
; CHECK-NOT: @objc
|
||
|
|
; CHECK: }
|
||
|
|
define %0* @test1() nounwind {
|
||
|
|
%buffer = call %0* @foo()
|
||
|
|
%1 = bitcast %0* %buffer to i8*
|
||
|
|
%2 = tail call i8* @objc_retain(i8* %1) nounwind
|
||
|
|
br i1 undef, label %.lr.ph, label %._crit_edge
|
||
|
|
|
||
|
|
.lr.ph: ; preds = %.lr.ph, %0
|
||
|
|
br i1 false, label %.lr.ph, label %._crit_edge
|
||
|
|
|
||
|
|
._crit_edge: ; preds = %.lr.ph, %0
|
||
|
|
%3 = tail call i8* @objc_retain(i8* %1) nounwind
|
||
|
|
tail call void @objc_release(i8* %1) nounwind, !clang.imprecise_release !0
|
||
|
|
%4 = tail call i8* @objc_autoreleaseReturnValue(i8* %1) nounwind
|
||
|
|
ret %0* %buffer
|
||
|
|
}
|
||
|
|
|
||
|
|
declare %0* @foo()
|
||
|
|
|
||
|
|
!0 = metadata !{}
|