2011-06-15 23:37:01 +00:00
|
|
|
; RUN: opt -objc-arc -S < %s | FileCheck %s
|
|
|
|
|
|
|
|
|
|
target datalayout = "e-p:64:64:64"
|
|
|
|
|
|
|
|
|
|
declare i8* @objc_retain(i8*)
|
|
|
|
|
declare i8* @objc_retainAutoreleasedReturnValue(i8*)
|
|
|
|
|
declare void @objc_release(i8*)
|
|
|
|
|
declare i8* @objc_autorelease(i8*)
|
|
|
|
|
declare i8* @objc_autoreleaseReturnValue(i8*)
|
|
|
|
|
declare i8* @objc_retainAutoreleaseReturnValue(i8*)
|
|
|
|
|
declare void @objc_autoreleasePoolPop(i8*)
|
|
|
|
|
declare void @objc_autoreleasePoolPush()
|
|
|
|
|
declare i8* @objc_retainBlock(i8*)
|
|
|
|
|
|
|
|
|
|
declare i8* @objc_retainedObject(i8*)
|
|
|
|
|
declare i8* @objc_unretainedObject(i8*)
|
|
|
|
|
declare i8* @objc_unretainedPointer(i8*)
|
|
|
|
|
|
|
|
|
|
declare void @use_pointer(i8*)
|
|
|
|
|
declare void @callee()
|
|
|
|
|
declare void @callee_fnptr(void ()*)
|
|
|
|
|
declare void @invokee()
|
|
|
|
|
declare i8* @returner()
|
|
|
|
|
|
|
|
|
|
; Test that retain+release elimination is suppressed when the
|
|
|
|
|
; retain is an objc_retainAutoreleasedReturnValue, since it's
|
|
|
|
|
; better to do the RV optimization.
|
|
|
|
|
|
|
|
|
|
; CHECK: define void @test0(
|
|
|
|
|
; CHECK-NEXT: entry:
|
|
|
|
|
; CHECK-NEXT: %x = call i8* @returner
|
|
|
|
|
; CHECK-NEXT: %0 = tail call i8* @objc_retainAutoreleasedReturnValue(i8* %x) nounwind
|
|
|
|
|
; CHECK: t:
|
|
|
|
|
; CHECK-NOT: @objc_
|
|
|
|
|
; CHECK: return:
|
|
|
|
|
; CHECK-NEXT: call void @objc_release(i8* %x)
|
|
|
|
|
; CHECK-NEXT: ret void
|
|
|
|
|
; CHECK-NEXT: }
|
|
|
|
|
define void @test0(i1 %p) nounwind {
|
|
|
|
|
entry:
|
|
|
|
|
%x = call i8* @returner()
|
|
|
|
|
%0 = call i8* @objc_retainAutoreleasedReturnValue(i8* %x)
|
|
|
|
|
br i1 %p, label %t, label %return
|
|
|
|
|
|
|
|
|
|
t:
|
|
|
|
|
call void @use_pointer(i8* %x)
|
|
|
|
|
store i8 0, i8* %x
|
|
|
|
|
br label %return
|
|
|
|
|
|
|
|
|
|
return:
|
|
|
|
|
call void @objc_release(i8* %x) nounwind
|
|
|
|
|
ret void
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
; Delete no-ops.
|
|
|
|
|
|
|
|
|
|
; CHECK: define void @test2
|
|
|
|
|
; CHECK-NOT: @objc_
|
|
|
|
|
; CHECK: }
|
|
|
|
|
define void @test2() {
|
|
|
|
|
call i8* @objc_retainAutoreleasedReturnValue(i8* null)
|
|
|
|
|
call i8* @objc_autoreleaseReturnValue(i8* null)
|
|
|
|
|
; call i8* @objc_retainAutoreleaseReturnValue(i8* null) ; TODO
|
|
|
|
|
ret void
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
; Delete a redundant retainRV,autoreleaseRV when forwaring a call result
|
|
|
|
|
; directly to a return value.
|
|
|
|
|
|
|
|
|
|
; CHECK: define i8* @test3
|
|
|
|
|
; CHECK: call i8* @returner()
|
|
|
|
|
; CHECK-NEXT: ret i8* %call
|
|
|
|
|
define i8* @test3() {
|
|
|
|
|
entry:
|
|
|
|
|
%call = call i8* @returner()
|
|
|
|
|
%0 = call i8* @objc_retainAutoreleasedReturnValue(i8* %call) nounwind
|
|
|
|
|
%1 = call i8* @objc_autoreleaseReturnValue(i8* %0) nounwind
|
|
|
|
|
ret i8* %1
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
; Delete a redundant retain,autoreleaseRV when forwaring a call result
|
|
|
|
|
; directly to a return value.
|
|
|
|
|
|
|
|
|
|
; CHECK: define i8* @test4
|
|
|
|
|
; CHECK: call i8* @returner()
|
|
|
|
|
; CHECK-NEXT: ret i8* %call
|
|
|
|
|
define i8* @test4() {
|
|
|
|
|
entry:
|
|
|
|
|
%call = call i8* @returner()
|
|
|
|
|
%0 = call i8* @objc_retain(i8* %call) nounwind
|
|
|
|
|
%1 = call i8* @objc_autoreleaseReturnValue(i8* %0) nounwind
|
|
|
|
|
ret i8* %1
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
; Delete a redundant fused retain+autoreleaseRV when forwaring a call result
|
|
|
|
|
; directly to a return value.
|
|
|
|
|
|
|
|
|
|
; TODO
|
|
|
|
|
; HECK: define i8* @test5
|
|
|
|
|
; HECK: call i8* @returner()
|
|
|
|
|
; HECK-NEXT: ret i8* %call
|
|
|
|
|
;define i8* @test5() {
|
|
|
|
|
;entry:
|
|
|
|
|
; %call = call i8* @returner()
|
|
|
|
|
; %0 = call i8* @objc_retainAutoreleaseReturnValue(i8* %call) nounwind
|
|
|
|
|
; ret i8* %0
|
|
|
|
|
;}
|
|
|
|
|
|
|
|
|
|
; Don't eliminate objc_retainAutoreleasedReturnValue by merging it into
|
|
|
|
|
; an objc_autorelease.
|
|
|
|
|
; TODO? Merge objc_retainAutoreleasedReturnValue and objc_autorelease into
|
|
|
|
|
; objc_retainAutoreleasedReturnValueAutorelease and merge
|
|
|
|
|
; objc_retainAutoreleasedReturnValue and objc_autoreleaseReturnValue
|
|
|
|
|
; into objc_retainAutoreleasedReturnValueAutoreleaseReturnValue?
|
|
|
|
|
; Those entrypoints don't exist yet though.
|
|
|
|
|
|
|
|
|
|
; CHECK: define i8* @test7(
|
|
|
|
|
; CHECK: call i8* @objc_retainAutoreleasedReturnValue(i8* %p)
|
|
|
|
|
; CHECK: %t = tail call i8* @objc_autoreleaseReturnValue(i8* %p)
|
|
|
|
|
define i8* @test7() {
|
|
|
|
|
%p = call i8* @returner()
|
|
|
|
|
call i8* @objc_retainAutoreleasedReturnValue(i8* %p)
|
|
|
|
|
%t = call i8* @objc_autoreleaseReturnValue(i8* %p)
|
|
|
|
|
call void @use_pointer(i8* %t)
|
|
|
|
|
ret i8* %t
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
; CHECK: define i8* @test7b(
|
|
|
|
|
; CHECK: call i8* @objc_retain(i8* %p)
|
|
|
|
|
; CHECK: %t = tail call i8* @objc_autoreleaseReturnValue(i8* %p)
|
|
|
|
|
define i8* @test7b() {
|
|
|
|
|
%p = call i8* @returner()
|
|
|
|
|
call void @use_pointer(i8* %p)
|
|
|
|
|
call i8* @objc_retainAutoreleasedReturnValue(i8* %p)
|
|
|
|
|
%t = call i8* @objc_autoreleaseReturnValue(i8* %p)
|
|
|
|
|
ret i8* %t
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
; Turn objc_retain into objc_retainAutoreleasedReturnValue if its operand
|
|
|
|
|
; is a return value.
|
|
|
|
|
|
|
|
|
|
; CHECK: define void @test8()
|
|
|
|
|
; CHECK: tail call i8* @objc_retainAutoreleasedReturnValue(i8* %p)
|
|
|
|
|
define void @test8() {
|
|
|
|
|
%p = call i8* @returner()
|
|
|
|
|
call i8* @objc_retain(i8* %p)
|
|
|
|
|
ret void
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
; Don't apply the RV optimization to autorelease if there's no retain.
|
|
|
|
|
|
|
|
|
|
; CHECK: define i8* @test9(i8* %p)
|
|
|
|
|
; CHECK: tail call i8* @objc_autorelease(i8* %p)
|
|
|
|
|
define i8* @test9(i8* %p) {
|
|
|
|
|
call i8* @objc_autorelease(i8* %p)
|
|
|
|
|
ret i8* %p
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
; Apply the RV optimization.
|
|
|
|
|
|
|
|
|
|
; CHECK: define i8* @test10(i8* %p)
|
|
|
|
|
; CHECK: tail call i8* @objc_retain(i8* %p) nounwind
|
|
|
|
|
; CHECK: tail call i8* @objc_autoreleaseReturnValue(i8* %p) nounwind
|
|
|
|
|
; CHECK-NEXT: ret i8* %p
|
|
|
|
|
define i8* @test10(i8* %p) {
|
|
|
|
|
%1 = call i8* @objc_retain(i8* %p)
|
|
|
|
|
%2 = call i8* @objc_autorelease(i8* %p)
|
|
|
|
|
ret i8* %p
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
; Don't do the autoreleaseRV optimization because @use_pointer
|
|
|
|
|
; could undo the retain.
|
|
|
|
|
|
|
|
|
|
; CHECK: define i8* @test11(i8* %p)
|
|
|
|
|
; CHECK: tail call i8* @objc_retain(i8* %p)
|
|
|
|
|
; CHECK-NEXT: call void @use_pointer(i8* %p)
|
|
|
|
|
; CHECK: tail call i8* @objc_autorelease(i8* %p)
|
|
|
|
|
; CHECK-NEXT: ret i8* %p
|
|
|
|
|
define i8* @test11(i8* %p) {
|
|
|
|
|
%1 = call i8* @objc_retain(i8* %p)
|
|
|
|
|
call void @use_pointer(i8* %p)
|
|
|
|
|
%2 = call i8* @objc_autorelease(i8* %p)
|
|
|
|
|
ret i8* %p
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
; Don't spoil the RV optimization.
|
|
|
|
|
|
|
|
|
|
; CHECK: define i8* @test12(i8* %p)
|
|
|
|
|
; CHECK: tail call i8* @objc_retain(i8* %p)
|
|
|
|
|
; CHECK: call void @use_pointer(i8* %p)
|
|
|
|
|
; CHECK: tail call i8* @objc_autoreleaseReturnValue(i8* %p)
|
|
|
|
|
; CHECK: ret i8* %p
|
|
|
|
|
define i8* @test12(i8* %p) {
|
|
|
|
|
%1 = call i8* @objc_retain(i8* %p)
|
|
|
|
|
call void @use_pointer(i8* %p)
|
|
|
|
|
%2 = call i8* @objc_autoreleaseReturnValue(i8* %p)
|
|
|
|
|
ret i8* %p
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
; Don't zap the objc_retainAutoreleasedReturnValue.
|
|
|
|
|
|
|
|
|
|
; CHECK: define i8* @test13(
|
|
|
|
|
; CHECK: tail call i8* @objc_retainAutoreleasedReturnValue(i8* %p)
|
|
|
|
|
; CHECK: tail call i8* @objc_autorelease(i8* %p)
|
|
|
|
|
; CHECK: ret i8* %p
|
|
|
|
|
define i8* @test13() {
|
|
|
|
|
%p = call i8* @returner()
|
|
|
|
|
%1 = call i8* @objc_retainAutoreleasedReturnValue(i8* %p)
|
|
|
|
|
call void @callee()
|
|
|
|
|
%2 = call i8* @objc_autorelease(i8* %p)
|
|
|
|
|
ret i8* %p
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
; Convert objc_retainAutoreleasedReturnValue to objc_retain if its
|
|
|
|
|
; argument is not a return value.
|
|
|
|
|
|
|
|
|
|
; CHECK: define void @test14(
|
|
|
|
|
; CHECK-NEXT: tail call i8* @objc_retain(i8* %p) nounwind
|
|
|
|
|
; CHECK-NEXT: ret void
|
|
|
|
|
define void @test14(i8* %p) {
|
|
|
|
|
call i8* @objc_retainAutoreleasedReturnValue(i8* %p)
|
|
|
|
|
ret void
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
; Don't convert objc_retainAutoreleasedReturnValue to objc_retain if its
|
|
|
|
|
; argument is a return value.
|
|
|
|
|
|
|
|
|
|
; CHECK: define void @test15(
|
|
|
|
|
; CHECK-NEXT: %y = call i8* @returner()
|
|
|
|
|
; CHECK-NEXT: tail call i8* @objc_retainAutoreleasedReturnValue(i8* %y) nounwind
|
|
|
|
|
; CHECK-NEXT: ret void
|
|
|
|
|
define void @test15() {
|
|
|
|
|
%y = call i8* @returner()
|
|
|
|
|
call i8* @objc_retainAutoreleasedReturnValue(i8* %y)
|
|
|
|
|
ret void
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
; Convert objc_retain to objc_retainAutoreleasedReturnValue if its
|
|
|
|
|
; argument is a return value.
|
|
|
|
|
|
|
|
|
|
; CHECK: define void @test16(
|
|
|
|
|
; CHECK-NEXT: %y = call i8* @returner()
|
|
|
|
|
; CHECK-NEXT: tail call i8* @objc_retainAutoreleasedReturnValue(i8* %y) nounwind
|
|
|
|
|
; CHECK-NEXT: ret void
|
|
|
|
|
define void @test16() {
|
|
|
|
|
%y = call i8* @returner()
|
|
|
|
|
call i8* @objc_retain(i8* %y)
|
|
|
|
|
ret void
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
; Don't convert objc_retain to objc_retainAutoreleasedReturnValue if its
|
|
|
|
|
; argument is not a return value.
|
|
|
|
|
|
|
|
|
|
; CHECK: define void @test17(
|
|
|
|
|
; CHECK-NEXT: tail call i8* @objc_retain(i8* %y) nounwind
|
|
|
|
|
; CHECK-NEXT: ret void
|
|
|
|
|
define void @test17(i8* %y) {
|
|
|
|
|
call i8* @objc_retain(i8* %y)
|
|
|
|
|
ret void
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
; Don't Convert objc_retain to objc_retainAutoreleasedReturnValue if it
|
|
|
|
|
; isn't next to the call providing its return value.
|
|
|
|
|
|
|
|
|
|
; CHECK: define void @test18(
|
|
|
|
|
; CHECK-NEXT: %y = call i8* @returner()
|
|
|
|
|
; CHECK-NEXT: call void @callee()
|
|
|
|
|
; CHECK-NEXT: tail call i8* @objc_retain(i8* %y) nounwind
|
|
|
|
|
; CHECK-NEXT: ret void
|
|
|
|
|
define void @test18() {
|
|
|
|
|
%y = call i8* @returner()
|
|
|
|
|
call void @callee()
|
|
|
|
|
call i8* @objc_retain(i8* %y)
|
|
|
|
|
ret void
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
; Delete autoreleaseRV+retainRV pairs.
|
|
|
|
|
|
|
|
|
|
; CHECK: define i8* @test19(i8* %p) {
|
|
|
|
|
; CHECK-NEXT: ret i8* %p
|
|
|
|
|
define i8* @test19(i8* %p) {
|
|
|
|
|
call i8* @objc_autoreleaseReturnValue(i8* %p)
|
|
|
|
|
call i8* @objc_retainAutoreleasedReturnValue(i8* %p)
|
|
|
|
|
ret i8* %p
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
; Like test19 but with plain autorelease.
|
|
|
|
|
|
|
|
|
|
; CHECK: define i8* @test20(i8* %p) {
|
|
|
|
|
; CHECK-NEXT: call i8* @objc_autorelease(i8* %p)
|
|
|
|
|
; CHECK-NEXT: call i8* @objc_retain(i8* %p)
|
|
|
|
|
; CHECK-NEXT: ret i8* %p
|
|
|
|
|
define i8* @test20(i8* %p) {
|
|
|
|
|
call i8* @objc_autorelease(i8* %p)
|
|
|
|
|
call i8* @objc_retainAutoreleasedReturnValue(i8* %p)
|
|
|
|
|
ret i8* %p
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
; Like test19 but with plain retain.
|
|
|
|
|
|
|
|
|
|
; CHECK: define i8* @test21(i8* %p) {
|
|
|
|
|
; CHECK-NEXT: call i8* @objc_autoreleaseReturnValue(i8* %p)
|
|
|
|
|
; CHECK-NEXT: call i8* @objc_retain(i8* %p)
|
|
|
|
|
; CHECK-NEXT: ret i8* %p
|
|
|
|
|
define i8* @test21(i8* %p) {
|
|
|
|
|
call i8* @objc_autoreleaseReturnValue(i8* %p)
|
|
|
|
|
call i8* @objc_retain(i8* %p)
|
|
|
|
|
ret i8* %p
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
; Like test19 but with plain retain and autorelease.
|
|
|
|
|
|
|
|
|
|
; CHECK: define i8* @test22(i8* %p) {
|
|
|
|
|
; CHECK-NEXT: call i8* @objc_autorelease(i8* %p)
|
|
|
|
|
; CHECK-NEXT: call i8* @objc_retain(i8* %p)
|
|
|
|
|
; CHECK-NEXT: ret i8* %p
|
|
|
|
|
define i8* @test22(i8* %p) {
|
|
|
|
|
call i8* @objc_autorelease(i8* %p)
|
|
|
|
|
call i8* @objc_retain(i8* %p)
|
|
|
|
|
ret i8* %p
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
; Convert autoreleaseRV to autorelease.
|
|
|
|
|
|
|
|
|
|
; CHECK: define void @test23(
|
|
|
|
|
; CHECK: tail call i8* @objc_autorelease(i8* %p) nounwind
|
|
|
|
|
define void @test23(i8* %p) {
|
|
|
|
|
store i8 0, i8* %p
|
|
|
|
|
call i8* @objc_autoreleaseReturnValue(i8* %p)
|
|
|
|
|
ret void
|
|
|
|
|
}
|
2011-08-12 00:36:31 +00:00
|
|
|
|
|
|
|
|
; Don't convert autoreleaseRV to autorelease if the result is returned,
|
|
|
|
|
; even through a bitcast.
|
|
|
|
|
|
|
|
|
|
; CHECK: define {}* @test24(
|
|
|
|
|
; CHECK: tail call i8* @objc_autoreleaseReturnValue(i8* %p)
|
|
|
|
|
define {}* @test24(i8* %p) {
|
|
|
|
|
%t = call i8* @objc_autoreleaseReturnValue(i8* %p)
|
|
|
|
|
%s = bitcast i8* %p to {}*
|
|
|
|
|
ret {}* %s
|
|
|
|
|
}
|
