mirror of
https://github.com/RPCSX/llvm.git
synced 2024-12-13 23:18:51 +00:00
7c9c6ed761
Essentially the same as the GEP change in r230786.
A similar migration script can be used to update test cases, though a few more
test case improvements/changes were required this time around: (r229269-r229278)
import fileinput
import sys
import re
pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)")
for line in sys.stdin:
sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line))
Reviewers: rafael, dexonsmith, grosser
Differential Revision: http://reviews.llvm.org/D7649
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230794 91177308-0d34-0410-b5e6-96231b3b80d8
223 lines
7.5 KiB
LLVM
223 lines
7.5 KiB
LLVM
; 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*)
|
|
declare void @use_pointer(i8*)
|
|
|
|
@x = external global i8*
|
|
|
|
; CHECK-LABEL: define void @test0(
|
|
; CHECK: entry:
|
|
; CHECK-NEXT: tail call void @objc_storeStrong(i8** @x, i8* %p) [[NUW:#[0-9]+]]
|
|
; CHECK-NEXT: ret void
|
|
; CHECK-NEXT: }
|
|
define void @test0(i8* %p) {
|
|
entry:
|
|
%0 = tail call i8* @objc_retain(i8* %p) nounwind
|
|
%tmp = load i8*, 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-LABEL: define void @test1(i8* %p) {
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: %0 = tail call i8* @objc_retain(i8* %p) [[NUW]]
|
|
; CHECK-NEXT: %tmp = load volatile i8*, i8** @x, align 8
|
|
; CHECK-NEXT: store i8* %0, i8** @x, align 8
|
|
; CHECK-NEXT: tail call void @objc_release(i8* %tmp) [[NUW]]
|
|
; CHECK-NEXT: ret void
|
|
; CHECK-NEXT: }
|
|
define void @test1(i8* %p) {
|
|
entry:
|
|
%0 = tail call i8* @objc_retain(i8* %p) nounwind
|
|
%tmp = load volatile i8*, 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-LABEL: define void @test2(i8* %p) {
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: %0 = tail call i8* @objc_retain(i8* %p) [[NUW]]
|
|
; CHECK-NEXT: %tmp = load i8*, i8** @x, align 8
|
|
; CHECK-NEXT: store volatile i8* %0, i8** @x, align 8
|
|
; CHECK-NEXT: tail call void @objc_release(i8* %tmp) [[NUW]]
|
|
; CHECK-NEXT: ret void
|
|
; CHECK-NEXT: }
|
|
define void @test2(i8* %p) {
|
|
entry:
|
|
%0 = tail call i8* @objc_retain(i8* %p) nounwind
|
|
%tmp = load i8*, i8** @x, align 8
|
|
store volatile i8* %0, i8** @x, align 8
|
|
tail call void @objc_release(i8* %tmp) nounwind
|
|
ret void
|
|
}
|
|
|
|
; Don't do this if there's a use of the old pointer value between the store
|
|
; and the release.
|
|
|
|
; CHECK-LABEL: define void @test3(i8* %newValue) {
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: %x0 = tail call i8* @objc_retain(i8* %newValue) [[NUW]]
|
|
; CHECK-NEXT: %x1 = load i8*, i8** @x, align 8
|
|
; CHECK-NEXT: store i8* %x0, i8** @x, align 8
|
|
; CHECK-NEXT: tail call void @use_pointer(i8* %x1), !clang.arc.no_objc_arc_exceptions !0
|
|
; CHECK-NEXT: tail call void @objc_release(i8* %x1) [[NUW]], !clang.imprecise_release !0
|
|
; CHECK-NEXT: ret void
|
|
; CHECK-NEXT: }
|
|
define void @test3(i8* %newValue) {
|
|
entry:
|
|
%x0 = tail call i8* @objc_retain(i8* %newValue) nounwind
|
|
%x1 = load i8*, i8** @x, align 8
|
|
store i8* %newValue, i8** @x, align 8
|
|
tail call void @use_pointer(i8* %x1), !clang.arc.no_objc_arc_exceptions !0
|
|
tail call void @objc_release(i8* %x1) nounwind, !clang.imprecise_release !0
|
|
ret void
|
|
}
|
|
|
|
; Like test3, but with an icmp use instead of a call, for good measure.
|
|
|
|
; CHECK-LABEL: define i1 @test4(i8* %newValue, i8* %foo) {
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: %x0 = tail call i8* @objc_retain(i8* %newValue) [[NUW]]
|
|
; CHECK-NEXT: %x1 = load i8*, i8** @x, align 8
|
|
; CHECK-NEXT: store i8* %x0, i8** @x, align 8
|
|
; CHECK-NEXT: %t = icmp eq i8* %x1, %foo
|
|
; CHECK-NEXT: tail call void @objc_release(i8* %x1) [[NUW]], !clang.imprecise_release !0
|
|
; CHECK-NEXT: ret i1 %t
|
|
; CHECK-NEXT: }
|
|
define i1 @test4(i8* %newValue, i8* %foo) {
|
|
entry:
|
|
%x0 = tail call i8* @objc_retain(i8* %newValue) nounwind
|
|
%x1 = load i8*, i8** @x, align 8
|
|
store i8* %newValue, i8** @x, align 8
|
|
%t = icmp eq i8* %x1, %foo
|
|
tail call void @objc_release(i8* %x1) nounwind, !clang.imprecise_release !0
|
|
ret i1 %t
|
|
}
|
|
|
|
; Do form an objc_storeStrong here, because the use is before the store.
|
|
|
|
; CHECK-LABEL: define i1 @test5(i8* %newValue, i8* %foo) {
|
|
; CHECK: %t = icmp eq i8* %x1, %foo
|
|
; CHECK: tail call void @objc_storeStrong(i8** @x, i8* %newValue) [[NUW]]
|
|
; CHECK: }
|
|
define i1 @test5(i8* %newValue, i8* %foo) {
|
|
entry:
|
|
%x0 = tail call i8* @objc_retain(i8* %newValue) nounwind
|
|
%x1 = load i8*, i8** @x, align 8
|
|
%t = icmp eq i8* %x1, %foo
|
|
store i8* %newValue, i8** @x, align 8
|
|
tail call void @objc_release(i8* %x1) nounwind, !clang.imprecise_release !0
|
|
ret i1 %t
|
|
}
|
|
|
|
; Like test5, but the release is before the store.
|
|
|
|
; CHECK-LABEL: define i1 @test6(i8* %newValue, i8* %foo) {
|
|
; CHECK: %t = icmp eq i8* %x1, %foo
|
|
; CHECK: tail call void @objc_storeStrong(i8** @x, i8* %newValue) [[NUW]]
|
|
; CHECK: }
|
|
define i1 @test6(i8* %newValue, i8* %foo) {
|
|
entry:
|
|
%x0 = tail call i8* @objc_retain(i8* %newValue) nounwind
|
|
%x1 = load i8*, i8** @x, align 8
|
|
tail call void @objc_release(i8* %x1) nounwind, !clang.imprecise_release !0
|
|
%t = icmp eq i8* %x1, %foo
|
|
store i8* %newValue, i8** @x, align 8
|
|
ret i1 %t
|
|
}
|
|
|
|
; Like test0, but there's no store, so don't form an objc_storeStrong.
|
|
|
|
; CHECK-LABEL: define void @test7(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: %0 = tail call i8* @objc_retain(i8* %p) [[NUW]]
|
|
; CHECK-NEXT: %tmp = load i8*, i8** @x, align 8
|
|
; CHECK-NEXT: tail call void @objc_release(i8* %tmp) [[NUW]]
|
|
; CHECK-NEXT: ret void
|
|
; CHECK-NEXT: }
|
|
define void @test7(i8* %p) {
|
|
entry:
|
|
%0 = tail call i8* @objc_retain(i8* %p) nounwind
|
|
%tmp = load i8*, i8** @x, align 8
|
|
tail call void @objc_release(i8* %tmp) nounwind
|
|
ret void
|
|
}
|
|
|
|
; Like test0, but there's no retain, so don't form an objc_storeStrong.
|
|
|
|
; CHECK-LABEL: define void @test8(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: %tmp = load i8*, i8** @x, align 8
|
|
; CHECK-NEXT: store i8* %p, i8** @x, align 8
|
|
; CHECK-NEXT: tail call void @objc_release(i8* %tmp) [[NUW]]
|
|
; CHECK-NEXT: ret void
|
|
; CHECK-NEXT: }
|
|
define void @test8(i8* %p) {
|
|
entry:
|
|
%tmp = load i8*, i8** @x, align 8
|
|
store i8* %p, i8** @x, align 8
|
|
tail call void @objc_release(i8* %tmp) nounwind
|
|
ret void
|
|
}
|
|
|
|
; Make sure that we properly handle release that *may* release our new
|
|
; value in between the retain and the store. We need to be sure that
|
|
; this we can safely move the retain to the store. This specific test
|
|
; makes sure that we properly handled a release of an unrelated
|
|
; pointer.
|
|
;
|
|
; CHECK-LABEL: define i1 @test9(i8* %newValue, i8* %foo, i8* %unrelated_ptr) {
|
|
; CHECK-NOT: objc_storeStrong
|
|
define i1 @test9(i8* %newValue, i8* %foo, i8* %unrelated_ptr) {
|
|
entry:
|
|
%x0 = tail call i8* @objc_retain(i8* %newValue) nounwind
|
|
tail call void @objc_release(i8* %unrelated_ptr) nounwind, !clang.imprecise_release !0
|
|
%x1 = load i8*, i8** @x, align 8
|
|
tail call void @objc_release(i8* %x1) nounwind, !clang.imprecise_release !0
|
|
%t = icmp eq i8* %x1, %foo
|
|
store i8* %newValue, i8** @x, align 8
|
|
ret i1 %t
|
|
}
|
|
|
|
; Make sure that we don't perform the optimization when we just have a call.
|
|
;
|
|
; CHECK-LABEL: define i1 @test10(i8* %newValue, i8* %foo, i8* %unrelated_ptr) {
|
|
; CHECK-NOT: objc_storeStrong
|
|
define i1 @test10(i8* %newValue, i8* %foo, i8* %unrelated_ptr) {
|
|
entry:
|
|
%x0 = tail call i8* @objc_retain(i8* %newValue) nounwind
|
|
call void @use_pointer(i8* %unrelated_ptr)
|
|
%x1 = load i8*, i8** @x, align 8
|
|
tail call void @objc_release(i8* %x1) nounwind, !clang.imprecise_release !0
|
|
%t = icmp eq i8* %x1, %foo
|
|
store i8* %newValue, i8** @x, align 8
|
|
ret i1 %t
|
|
}
|
|
|
|
; Make sure we form the store strong if the use in between the retain
|
|
; and the store does not touch reference counts.
|
|
; CHECK-LABEL: define i1 @test11(i8* %newValue, i8* %foo, i8* %unrelated_ptr) {
|
|
; CHECK: objc_storeStrong
|
|
define i1 @test11(i8* %newValue, i8* %foo, i8* %unrelated_ptr) {
|
|
entry:
|
|
%x0 = tail call i8* @objc_retain(i8* %newValue) nounwind
|
|
%t = icmp eq i8* %newValue, %foo
|
|
%x1 = load i8*, i8** @x, align 8
|
|
tail call void @objc_release(i8* %x1) nounwind, !clang.imprecise_release !0
|
|
store i8* %newValue, i8** @x, align 8
|
|
ret i1 %t
|
|
}
|
|
|
|
!0 = !{}
|
|
|
|
; CHECK: attributes [[NUW]] = { nounwind }
|