mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2025-01-31 20:51:52 +01:00
f6c9646a94
We're moving ARC optimisation and ARC emission in clang away from runtime methods and towards intrinsics. This is the part which actually uses the intrinsics in the ARC optimizer when both analyzing the existing calls and emitting new ones. Differential Revision: https://reviews.llvm.org/D55348 Reviewers: ahatanak llvm-svn: 349534
58 lines
2.4 KiB
LLVM
58 lines
2.4 KiB
LLVM
; RUN: opt -mtriple x86_64-unknown-windows-msvc -objc-arc -o - %s | llvm-dis -o - - | FileCheck %s
|
|
|
|
target triple = "x86_64-unknown-windows-msvc"
|
|
|
|
declare i32 @__CxxFrameHandler3(...)
|
|
|
|
declare dllimport i8* @llvm.objc.msgSend(i8*, i8*, ...) local_unnamed_addr
|
|
|
|
declare dllimport i8* @llvm.objc.retain(i8* returned) local_unnamed_addr
|
|
declare dllimport void @llvm.objc.release(i8*) local_unnamed_addr
|
|
declare dllimport i8* @llvm.objc.retainAutoreleasedReturnValue(i8* returned) local_unnamed_addr
|
|
|
|
declare dllimport i8* @llvm.objc.begin_catch(i8*) local_unnamed_addr
|
|
declare dllimport void @llvm.objc.end_catch() local_unnamed_addr
|
|
|
|
@llvm.objc.METH_VAR_NAME_ = private unnamed_addr constant [2 x i8] c"m\00", align 1
|
|
@llvm.objc.SELECTOR_REFERENCES_ = private externally_initialized global i8* getelementptr inbounds ([2 x i8], [2 x i8]* @llvm.objc.METH_VAR_NAME_, i64 0, i64 0), section ".objc_selrefs$B", align 8
|
|
|
|
define void @f(i8* %i) local_unnamed_addr personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) {
|
|
entry:
|
|
%0 = tail call i8* @llvm.objc.retain(i8* %i)
|
|
%1 = load i8*, i8** @llvm.objc.SELECTOR_REFERENCES_, align 8, !invariant.load !0
|
|
%call = invoke i8* bitcast (i8* (i8*, i8*, ...)* @llvm.objc.msgSend to i8* (i8*, i8*)*)(i8* %0, i8* %1)
|
|
to label %invoke.cont unwind label %catch.dispatch, !clang.arc.no_objc_arc_exceptions !0
|
|
|
|
catch.dispatch: ; preds = %entry
|
|
%2 = catchswitch within none [label %catch] unwind to caller
|
|
|
|
invoke.cont: ; preds = %entry
|
|
%3 = tail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* %call)
|
|
tail call void @llvm.objc.release(i8* %3) #0, !clang.imprecise_release !0
|
|
br label %eh.cont
|
|
|
|
eh.cont: ; preds = %invoke.cont, %catch
|
|
tail call void @llvm.objc.release(i8* %0) #0, !clang.imprecise_release !0
|
|
ret void
|
|
|
|
catch: ; preds = %catch.dispatch
|
|
%4 = catchpad within %2 [i8* null, i32 0, i8* null]
|
|
%exn.adjusted = tail call i8* @llvm.objc.begin_catch(i8* undef)
|
|
tail call void @llvm.objc.end_catch(), !clang.arc.no_objc_arc_exceptions !0
|
|
br label %eh.cont
|
|
}
|
|
|
|
; CHECK-LABEL: @f
|
|
|
|
; CHECK-NOT: tail call i8* @llvm.objc.retain(i8* %i)
|
|
; CHECK: load i8*, i8** @llvm.objc.SELECTOR_REFERENCES_, align 8
|
|
|
|
; CHECK: eh.cont:
|
|
; CHECK-NOT: call void @llvm.objc.release(i8*
|
|
; CHECK: ret void
|
|
|
|
attributes #0 = { nounwind }
|
|
|
|
!0 = !{}
|
|
|