2012-04-19 21:50:46 +00:00
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; RUN: opt -S -objc-arc < %s | FileCheck %s
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; Handle a retain+release pair entirely contained within a split loop backedge.
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; rdar://11256239
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2013-07-14 01:50:49 +00:00
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; CHECK-LABEL: define void @test0(
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2013-02-22 09:09:42 +00:00
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; CHECK: call i8* @objc_retain(i8* %call) [[NUW:#[0-9]+]]
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; CHECK: call i8* @objc_retain(i8* %call) [[NUW]]
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; CHECK: call i8* @objc_retain(i8* %cond) [[NUW]]
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; CHECK: call void @objc_release(i8* %call) [[NUW]]
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; CHECK: call void @objc_release(i8* %call) [[NUW]]
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; CHECK: call void @objc_release(i8* %cond) [[NUW]]
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2012-04-19 21:50:46 +00:00
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define void @test0() {
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entry:
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br label %while.body
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while.body: ; preds = %while.cond
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%call = invoke i8* @returner()
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to label %invoke.cont unwind label %lpad, !clang.arc.no_objc_arc_exceptions !0
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invoke.cont: ; preds = %while.body
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%t0 = call i8* @objc_retain(i8* %call) nounwind
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%t1 = call i8* @objc_retain(i8* %call) nounwind
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%call.i1 = invoke i8* @returner()
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to label %invoke.cont1 unwind label %lpad
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invoke.cont1: ; preds = %invoke.cont
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%cond = select i1 undef, i8* null, i8* %call
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%t2 = call i8* @objc_retain(i8* %cond) nounwind
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call void @objc_release(i8* %call) nounwind
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call void @objc_release(i8* %call) nounwind
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call void @use_pointer(i8* %cond)
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call void @objc_release(i8* %cond) nounwind
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br label %while.body
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lpad: ; preds = %invoke.cont, %while.body
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%t4 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__objc_personality_v0 to i8*)
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catch i8* null
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ret void
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}
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declare i8* @returner()
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declare i32 @__objc_personality_v0(...)
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declare void @objc_release(i8*)
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declare i8* @objc_retain(i8*)
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declare void @use_pointer(i8*)
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IR: Make metadata typeless in assembly
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
2014-12-15 19:07:53 +00:00
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!0 = !{}
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2013-02-22 09:09:42 +00:00
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; CHECK: attributes [[NUW]] = { nounwind }
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