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