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https://github.com/c64scene-ar/llvm-6502.git
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1ef70ff39b
Now that `Metadata` is typeless, reflect that in the assembly. These
are the matching assembly changes for the metadata/value split in
r223802.
- Only use the `metadata` type when referencing metadata from a call
intrinsic -- i.e., only when it's used as a `Value`.
- Stop pretending that `ValueAsMetadata` is wrapped in an `MDNode`
when referencing it from call intrinsics.
So, assembly like this:
define @foo(i32 %v) {
call void @llvm.foo(metadata !{i32 %v}, metadata !0)
call void @llvm.foo(metadata !{i32 7}, metadata !0)
call void @llvm.foo(metadata !1, metadata !0)
call void @llvm.foo(metadata !3, metadata !0)
call void @llvm.foo(metadata !{metadata !3}, metadata !0)
ret void, !bar !2
}
!0 = metadata !{metadata !2}
!1 = metadata !{i32* @global}
!2 = metadata !{metadata !3}
!3 = metadata !{}
turns into this:
define @foo(i32 %v) {
call void @llvm.foo(metadata i32 %v, metadata !0)
call void @llvm.foo(metadata i32 7, metadata !0)
call void @llvm.foo(metadata i32* @global, metadata !0)
call void @llvm.foo(metadata !3, metadata !0)
call void @llvm.foo(metadata !{!3}, metadata !0)
ret void, !bar !2
}
!0 = !{!2}
!1 = !{i32* @global}
!2 = !{!3}
!3 = !{}
I wrote an upgrade script that handled almost all of the tests in llvm
and many of the tests in cfe (even handling many `CHECK` lines). I've
attached it (or will attach it in a moment if you're speedy) to PR21532
to help everyone update their out-of-tree testcases.
This is part of PR21532.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224257 91177308-0d34-0410-b5e6-96231b3b80d8
175 lines
5.5 KiB
LLVM
175 lines
5.5 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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declare void @use_pointer(i8*)
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@x = external global i8*
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; CHECK-LABEL: define void @test0(
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; CHECK: entry:
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; CHECK-NEXT: tail call void @objc_storeStrong(i8** @x, i8* %p) [[NUW:#[0-9]+]]
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; CHECK-NEXT: ret void
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; CHECK-NEXT: }
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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) [[NUW]]
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; CHECK-NEXT: %tmp = load volatile 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) [[NUW]]
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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 = load volatile 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) [[NUW]]
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; CHECK-NEXT: %tmp = load i8** @x, align 8
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; CHECK-NEXT: store volatile i8* %0, i8** @x, align 8
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; CHECK-NEXT: tail call void @objc_release(i8* %tmp) [[NUW]]
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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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store volatile 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 there's a use of the old pointer value between the store
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; and the release.
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; CHECK: define void @test3(i8* %newValue) {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: %x0 = tail call i8* @objc_retain(i8* %newValue) [[NUW]]
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; CHECK-NEXT: %x1 = load i8** @x, align 8
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; CHECK-NEXT: store i8* %x0, i8** @x, align 8
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; CHECK-NEXT: tail call void @use_pointer(i8* %x1), !clang.arc.no_objc_arc_exceptions !0
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; CHECK-NEXT: tail call void @objc_release(i8* %x1) [[NUW]], !clang.imprecise_release !0
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; CHECK-NEXT: ret void
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; CHECK-NEXT: }
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define void @test3(i8* %newValue) {
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entry:
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%x0 = tail call i8* @objc_retain(i8* %newValue) nounwind
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%x1 = load i8** @x, align 8
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store i8* %newValue, i8** @x, align 8
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tail call void @use_pointer(i8* %x1), !clang.arc.no_objc_arc_exceptions !0
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tail call void @objc_release(i8* %x1) nounwind, !clang.imprecise_release !0
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ret void
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}
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; Like test3, but with an icmp use instead of a call, for good measure.
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; CHECK: define i1 @test4(i8* %newValue, i8* %foo) {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: %x0 = tail call i8* @objc_retain(i8* %newValue) [[NUW]]
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; CHECK-NEXT: %x1 = load i8** @x, align 8
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; CHECK-NEXT: store i8* %x0, i8** @x, align 8
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; CHECK-NEXT: %t = icmp eq i8* %x1, %foo
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; CHECK-NEXT: tail call void @objc_release(i8* %x1) [[NUW]], !clang.imprecise_release !0
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; CHECK-NEXT: ret i1 %t
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; CHECK-NEXT: }
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define i1 @test4(i8* %newValue, i8* %foo) {
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entry:
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%x0 = tail call i8* @objc_retain(i8* %newValue) nounwind
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%x1 = load i8** @x, align 8
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store i8* %newValue, i8** @x, align 8
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%t = icmp eq i8* %x1, %foo
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tail call void @objc_release(i8* %x1) nounwind, !clang.imprecise_release !0
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ret i1 %t
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}
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; Do form an objc_storeStrong here, because the use is before the store.
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; CHECK: define i1 @test5(i8* %newValue, i8* %foo) {
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; CHECK: %t = icmp eq i8* %x1, %foo
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; CHECK: tail call void @objc_storeStrong(i8** @x, i8* %newValue) [[NUW]]
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; CHECK: }
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define i1 @test5(i8* %newValue, i8* %foo) {
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entry:
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%x0 = tail call i8* @objc_retain(i8* %newValue) nounwind
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%x1 = load i8** @x, align 8
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%t = icmp eq i8* %x1, %foo
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store i8* %newValue, i8** @x, align 8
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tail call void @objc_release(i8* %x1) nounwind, !clang.imprecise_release !0
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ret i1 %t
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}
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; Like test5, but the release is before the store.
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; CHECK: define i1 @test6(i8* %newValue, i8* %foo) {
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; CHECK: %t = icmp eq i8* %x1, %foo
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; CHECK: tail call void @objc_storeStrong(i8** @x, i8* %newValue) [[NUW]]
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; CHECK: }
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define i1 @test6(i8* %newValue, i8* %foo) {
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entry:
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%x0 = tail call i8* @objc_retain(i8* %newValue) nounwind
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%x1 = load i8** @x, align 8
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tail call void @objc_release(i8* %x1) nounwind, !clang.imprecise_release !0
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%t = icmp eq i8* %x1, %foo
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store i8* %newValue, i8** @x, align 8
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ret i1 %t
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}
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; Like test0, but there's no store, so don't form an objc_storeStrong.
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; CHECK-LABEL: define void @test7(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: %0 = tail call i8* @objc_retain(i8* %p) [[NUW]]
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; CHECK-NEXT: %tmp = load i8** @x, align 8
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; CHECK-NEXT: tail call void @objc_release(i8* %tmp) [[NUW]]
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; CHECK-NEXT: ret void
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; CHECK-NEXT: }
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define void @test7(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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tail call void @objc_release(i8* %tmp) nounwind
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ret void
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}
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; Like test0, but there's no retain, so don't form an objc_storeStrong.
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; CHECK-LABEL: define void @test8(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: %tmp = load i8** @x, align 8
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; CHECK-NEXT: store i8* %p, i8** @x, align 8
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; CHECK-NEXT: tail call void @objc_release(i8* %tmp) [[NUW]]
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; CHECK-NEXT: ret void
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; CHECK-NEXT: }
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define void @test8(i8* %p) {
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entry:
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%tmp = load i8** @x, align 8
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store i8* %p, 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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!0 = !{}
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; CHECK: attributes [[NUW]] = { nounwind }
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