llvm-6502/test/Transforms/ObjCARC/move-and-merge-autorelease.ll
Michael Gottesman f11a6856cc [objc-arc] Apply the RV optimization to retains next to calls in ObjCARCContract instead of ObjCARCOpts.
Turning retains into retainRV calls disrupts the data flow analysis in
ObjCARCOpts. Thus we move it as late as we can by moving it into
ObjCARCContract.

We leave in the conversion from retainRV -> retain in ObjCARCOpt since
it enables the dataflow analysis.

rdar://10813093

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180698 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-29 06:53:53 +00:00

109 lines
5.1 KiB
LLVM

; RUN: opt -S -objc-arc -objc-arc-contract < %s | FileCheck %s
; The optimizer should be able to move the autorelease past two phi nodes
; and fold it with the release in bb65.
; CHECK: bb65:
; CHECK: call i8* @objc_retainAutorelease
; CHECK: br label %bb76
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
target triple = "x86_64-apple-darwin11.0.0"
%0 = type opaque
%1 = type opaque
%2 = type opaque
%3 = type opaque
%4 = type opaque
%5 = type opaque
@"\01L_OBJC_SELECTOR_REFERENCES_11" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
@"\01L_OBJC_SELECTOR_REFERENCES_421455" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
@"\01L_OBJC_SELECTOR_REFERENCES_598" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
@"\01L_OBJC_SELECTOR_REFERENCES_620" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
@"\01L_OBJC_SELECTOR_REFERENCES_622" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
@"\01L_OBJC_SELECTOR_REFERENCES_624" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
@"\01L_OBJC_SELECTOR_REFERENCES_626" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
declare i8* @objc_msgSend(i8*, i8*, ...)
declare i8* @objc_retain(i8*)
declare void @objc_release(i8*)
declare i8* @objc_autorelease(i8*)
define hidden %0* @foo(%1* %arg, %3* %arg3) {
bb:
%tmp16 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_620", align 8
%tmp17 = bitcast %3* %arg3 to i8*
%tmp18 = call %4* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to %4* (i8*, i8*)*)(i8* %tmp17, i8* %tmp16)
%tmp19 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_622", align 8
%tmp20 = bitcast %4* %tmp18 to i8*
%tmp21 = call %5* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to %5* (i8*, i8*)*)(i8* %tmp20, i8* %tmp19)
%tmp22 = bitcast %5* %tmp21 to i8*
%tmp23 = call i8* @objc_retain(i8* %tmp22) nounwind
%tmp24 = bitcast i8* %tmp23 to %5*
%tmp26 = icmp eq i8* %tmp23, null
br i1 %tmp26, label %bb81, label %bb27
bb27: ; preds = %bb
%tmp29 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_11", align 8
%tmp30 = bitcast %1* %arg to i8*
%tmp31 = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8* (i8*, i8*)*)(i8* %tmp30, i8* %tmp29)
%tmp34 = call i8* @objc_retain(i8* %tmp31) nounwind
%tmp37 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_421455", align 8
%tmp39 = call %0* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to %0* (i8*, i8*)*)(i8* %tmp34, i8* %tmp37)
%tmp40 = bitcast %0* %tmp39 to i8*
%tmp41 = call i8* @objc_retain(i8* %tmp40) nounwind
%tmp42 = bitcast i8* %tmp41 to %0*
%tmp44 = icmp eq i8* %tmp41, null
br i1 %tmp44, label %bb45, label %bb55
bb45: ; preds = %bb27
%tmp47 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_624", align 8
%tmp49 = call %0* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to %0* (i8*, i8*)*)(i8* %tmp34, i8* %tmp47)
%tmp51 = bitcast %0* %tmp49 to i8*
%tmp52 = call i8* @objc_retain(i8* %tmp51) nounwind
call void @objc_release(i8* %tmp41) nounwind
br label %bb55
bb55: ; preds = %bb27, %bb45
%tmp13.0 = phi %0* [ %tmp42, %bb27 ], [ %tmp49, %bb45 ]
%tmp57 = icmp eq %0* %tmp13.0, null
br i1 %tmp57, label %bb76, label %bb58
bb58: ; preds = %bb55
%tmp60 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_598", align 8
%tmp61 = bitcast %0* %tmp13.0 to i8*
%tmp62 = call signext i8 bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8 (i8*, i8*)*)(i8* %tmp61, i8* %tmp60)
%tmp64 = icmp eq i8 %tmp62, 0
br i1 %tmp64, label %bb76, label %bb65
bb65: ; preds = %bb58
%tmp68 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_626", align 8
%tmp69 = bitcast %0* %tmp13.0 to i8*
%tmp70 = call %0* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to %0* (i8*, i8*, %5*)*)(i8* %tmp69, i8* %tmp68, %5* %tmp24)
%tmp72 = bitcast %0* %tmp70 to i8*
%tmp73 = call i8* @objc_retain(i8* %tmp72) nounwind
br label %bb76
bb76: ; preds = %bb58, %bb55, %bb65
%tmp10.0 = phi %0* [ %tmp70, %bb65 ], [ null, %bb58 ], [ null, %bb55 ]
%tmp78 = bitcast %0* %tmp13.0 to i8*
call void @objc_release(i8* %tmp78) nounwind
call void @objc_release(i8* %tmp34) nounwind
br label %bb81
bb81: ; preds = %bb, %bb76
%tmp10.1 = phi %0* [ %tmp10.0, %bb76 ], [ null, %bb ]
%tmp83 = bitcast %0* %tmp10.1 to i8*
%tmp84 = call i8* @objc_retain(i8* %tmp83) nounwind
%tmp88 = bitcast i8* %tmp87 to %0*
call void @objc_release(i8* %tmp23) nounwind
%tmp87 = call i8* @objc_autorelease(i8* %tmp84) nounwind
%tmp92 = bitcast %0* %tmp10.1 to i8*
call void @objc_release(i8* %tmp92) nounwind
ret %0* %tmp88
}