llvm-6502/test/Transforms/ObjCARC/intrinsic-use.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

117 lines
4.2 KiB
LLVM

; RUN: opt -basicaa -objc-arc -S < %s | FileCheck %s
target datalayout = "e-p:64:64:64"
declare i8* @objc_retain(i8*)
declare i8* @objc_retainAutorelease(i8*)
declare void @objc_release(i8*)
declare i8* @objc_autorelease(i8*)
declare void @clang.arc.use(...)
declare void @test0_helper(i8*, i8**)
; Ensure that we honor clang.arc.use as a use and don't miscompile
; the reduced test case from <rdar://13195034>.
;
; FIXME: the fact that we re-order retains w.r.t. @clang.arc.use could
; be problematic if we get run twice, e.g. under LTO.
;
; CHECK-LABEL: define void @test0(
; CHECK: @objc_retain(i8* %x)
; CHECK-NEXT: store i8* %y, i8** %temp0
; CHECK-NEXT: @objc_retain(i8* %y)
; CHECK-NEXT: call void @test0_helper
; CHECK-NEXT: [[VAL1:%.*]] = load i8** %temp0
; CHECK-NEXT: call void (...)* @clang.arc.use(i8* %y)
; CHECK-NEXT: @objc_retain(i8* [[VAL1]])
; CHECK-NEXT: @objc_release(i8* %y)
; CHECK-NEXT: store i8* [[VAL1]], i8** %temp1
; CHECK-NEXT: call void @test0_helper
; CHECK-NEXT: [[VAL2:%.*]] = load i8** %temp1
; CHECK-NEXT: call void (...)* @clang.arc.use(i8* [[VAL1]])
; CHECK-NEXT: @objc_retain(i8* [[VAL2]])
; CHECK-NEXT: @objc_release(i8* [[VAL1]])
; CHECK-NEXT: @objc_autorelease(i8* %x)
; CHECK-NEXT: store i8* %x, i8** %out
; CHECK-NEXT: @objc_retain(i8* %x)
; CHECK-NEXT: @objc_release(i8* [[VAL2]])
; CHECK-NEXT: @objc_release(i8* %x)
; CHECK-NEXT: ret void
; CHECK-NEXT: }
define void @test0(i8** %out, i8* %x, i8* %y) {
entry:
%temp0 = alloca i8*, align 8
%temp1 = alloca i8*, align 8
%0 = call i8* @objc_retain(i8* %x) nounwind
%1 = call i8* @objc_retain(i8* %y) nounwind
store i8* %y, i8** %temp0
call void @test0_helper(i8* %x, i8** %temp0)
%val1 = load i8** %temp0
%2 = call i8* @objc_retain(i8* %val1) nounwind
call void (...)* @clang.arc.use(i8* %y) nounwind
call void @objc_release(i8* %y) nounwind
store i8* %val1, i8** %temp1
call void @test0_helper(i8* %x, i8** %temp1)
%val2 = load i8** %temp1
%3 = call i8* @objc_retain(i8* %val2) nounwind
call void (...)* @clang.arc.use(i8* %val1) nounwind
call void @objc_release(i8* %val1) nounwind
%4 = call i8* @objc_retain(i8* %x) nounwind
%5 = call i8* @objc_autorelease(i8* %x) nounwind
store i8* %x, i8** %out
call void @objc_release(i8* %val2) nounwind
call void @objc_release(i8* %x) nounwind
ret void
}
; CHECK-LABEL: define void @test0a(
; CHECK: @objc_retain(i8* %x)
; CHECK-NEXT: store i8* %y, i8** %temp0
; CHECK-NEXT: @objc_retain(i8* %y)
; CHECK-NEXT: call void @test0_helper
; CHECK-NEXT: [[VAL1:%.*]] = load i8** %temp0
; CHECK-NEXT: call void (...)* @clang.arc.use(i8* %y)
; CHECK-NEXT: @objc_retain(i8* [[VAL1]])
; CHECK-NEXT: @objc_release(i8* %y)
; CHECK-NEXT: store i8* [[VAL1]], i8** %temp1
; CHECK-NEXT: call void @test0_helper
; CHECK-NEXT: [[VAL2:%.*]] = load i8** %temp1
; CHECK-NEXT: call void (...)* @clang.arc.use(i8* [[VAL1]])
; CHECK-NEXT: @objc_retain(i8* [[VAL2]])
; CHECK-NEXT: @objc_release(i8* [[VAL1]])
; CHECK-NEXT: @objc_autorelease(i8* %x)
; CHECK-NEXT: @objc_release(i8* [[VAL2]])
; CHECK-NEXT: store i8* %x, i8** %out
; CHECK-NEXT: ret void
; CHECK-NEXT: }
define void @test0a(i8** %out, i8* %x, i8* %y) {
entry:
%temp0 = alloca i8*, align 8
%temp1 = alloca i8*, align 8
%0 = call i8* @objc_retain(i8* %x) nounwind
%1 = call i8* @objc_retain(i8* %y) nounwind
store i8* %y, i8** %temp0
call void @test0_helper(i8* %x, i8** %temp0)
%val1 = load i8** %temp0
%2 = call i8* @objc_retain(i8* %val1) nounwind
call void (...)* @clang.arc.use(i8* %y) nounwind
call void @objc_release(i8* %y) nounwind, !clang.imprecise_release !0
store i8* %val1, i8** %temp1
call void @test0_helper(i8* %x, i8** %temp1)
%val2 = load i8** %temp1
%3 = call i8* @objc_retain(i8* %val2) nounwind
call void (...)* @clang.arc.use(i8* %val1) nounwind
call void @objc_release(i8* %val1) nounwind, !clang.imprecise_release !0
%4 = call i8* @objc_retain(i8* %x) nounwind
%5 = call i8* @objc_autorelease(i8* %x) nounwind
store i8* %x, i8** %out
call void @objc_release(i8* %val2) nounwind, !clang.imprecise_release !0
call void @objc_release(i8* %x) nounwind, !clang.imprecise_release !0
ret void
}
!0 = !{}