llvm-6502/test/Transforms/ObjCARC/arc-annotations.ll
Duncan P. N. Exon Smith 1ef70ff39b 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

84 lines
3.3 KiB
LLVM

; This file consists of various tests which ensure that the objc-arc-annotations
; are working correctly. In the future, I will use this in other lit tests to
; check the data flow analysis of ARC.
; REQUIRES: asserts
; RUN: opt -S -objc-arc -enable-objc-arc-annotations < %s | FileCheck %s
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 void @objc_autoreleasePoolPop(i8*)
declare i8* @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()
; Simple retain+release pair deletion, with some intervening control
; flow and harmless instructions.
; CHECK-LABEL: define void @test0(
; CHECK: entry:
; CHECK: call void @llvm.arc.annotation.bottomup.bbstart(i8** @x, i8** @S_None)
; CHECK: %0 = tail call i8* @objc_retain(i8* %a) #0, !llvm.arc.annotation.bottomup ![[ANN0:[0-9]+]], !llvm.arc.annotation.topdown ![[ANN1:[0-9]+]]
; CHECK: call void @llvm.arc.annotation.bottomup.bbend(i8** @x, i8** @S_Use)
; CHECK: call void @llvm.arc.annotation.topdown.bbend(i8** @x, i8** @S_Retain)
; CHECK: t:
; CHECK: call void @llvm.arc.annotation.topdown.bbstart(i8** @x, i8** @S_Retain)
; CHECK: call void @llvm.arc.annotation.bottomup.bbstart(i8** @x, i8** @S_Use)
; CHECK: store float 2.000000e+00, float* %b, !llvm.arc.annotation.bottomup ![[ANN2:[0-9]+]]
; CHECK: call void @llvm.arc.annotation.bottomup.bbend(i8** @x, i8** @S_Release)
; CHECK: call void @llvm.arc.annotation.topdown.bbend(i8** @x, i8** @S_Retain)
; CHECK: f:
; CHECK: call void @llvm.arc.annotation.topdown.bbstart(i8** @x, i8** @S_Retain)
; CHECK: call void @llvm.arc.annotation.bottomup.bbstart(i8** @x, i8** @S_Use)
; CHECK: store i32 7, i32* %x, !llvm.arc.annotation.bottomup ![[ANN2]]
; CHECK: call void @llvm.arc.annotation.bottomup.bbend(i8** @x, i8** @S_Release)
; CHECK: call void @llvm.arc.annotation.topdown.bbend(i8** @x, i8** @S_Retain)
; CHECK: return:
; CHECK: call void @llvm.arc.annotation.topdown.bbstart(i8** @x, i8** @S_Retain)
; CHECK: call void @llvm.arc.annotation.bottomup.bbstart(i8** @x, i8** @S_Release)
; CHECK: call void @objc_release(i8* %c) #0, !llvm.arc.annotation.bottomup ![[ANN3:[0-9]+]], !llvm.arc.annotation.topdown ![[ANN4:[0-9]+]]
; CHECK: call void @llvm.arc.annotation.topdown.bbend(i8** @x, i8** @S_None)
; CHECK: }
define void @test0(i32* %x, i1 %p) nounwind {
entry:
%a = bitcast i32* %x to i8*
%0 = call i8* @objc_retain(i8* %a) nounwind
br i1 %p, label %t, label %f
t:
store i8 3, i8* %a
%b = bitcast i32* %x to float*
store float 2.0, float* %b
br label %return
f:
store i32 7, i32* %x
br label %return
return:
%c = bitcast i32* %x to i8*
call void @objc_release(i8* %c) nounwind
ret void
}
!0 = !{}
; CHECK: ![[ANN0]] = !{!"(test0,%x)", !"S_Use", !"S_None"}
; CHECK: ![[ANN1]] = !{!"(test0,%x)", !"S_None", !"S_Retain"}
; CHECK: ![[ANN2]] = !{!"(test0,%x)", !"S_Release", !"S_Use"}
; CHECK: ![[ANN3]] = !{!"(test0,%x)", !"S_None", !"S_Release"}
; CHECK: ![[ANN4]] = !{!"(test0,%x)", !"S_Retain", !"S_None"}