1 ; RUN: opt -objc-arc -S < %s | FileCheck %s
3 target datalayout = "e-p:64:64:64"
5 declare i8* @objc_retain(i8*)
6 declare void @objc_release(i8*)
7 declare i8* @objc_autorelease(i8*)
8 declare void @objc_autoreleasePoolPop(i8*)
9 declare void @objc_autoreleasePoolPush()
10 declare i8* @objc_retainBlock(i8*)
12 declare i8* @objc_retainedObject(i8*)
13 declare i8* @objc_unretainedObject(i8*)
14 declare i8* @objc_unretainedPointer(i8*)
16 declare void @use_pointer(i8*)
17 declare void @callee()
18 declare void @callee_fnptr(void ()*)
19 declare void @invokee()
20 declare i8* @returner()
22 declare void @llvm.dbg.value(metadata, i64, metadata)
24 declare i8* @objc_msgSend(i8*, i8*, ...)
26 ; Simple retain+release pair deletion, with some intervening control
27 ; flow and harmless instructions.
29 ; CHECK: define void @test0(
32 define void @test0(i32* %x, i1 %p) nounwind {
34 %a = bitcast i32* %x to i8*
35 %0 = call i8* @objc_retain(i8* %a) nounwind
36 br i1 %p, label %t, label %f
40 %b = bitcast i32* %x to float*
41 store float 2.0, float* %b
49 %c = bitcast i32* %x to i8*
50 call void @objc_release(i8* %c) nounwind
54 ; Like test0 but the release isn't always executed when the retain is,
55 ; so the optimization is not safe.
57 ; TODO: Make the objc_release's argument be %0.
59 ; CHECK: define void @test1(
60 ; CHECK: @objc_retain(i8* %a)
61 ; CHECK: @objc_release
63 define void @test1(i32* %x, i1 %p, i1 %q) nounwind {
65 %a = bitcast i32* %x to i8*
66 %0 = call i8* @objc_retain(i8* %a) nounwind
67 br i1 %p, label %t, label %f
71 %b = bitcast i32* %x to float*
72 store float 2.0, float* %b
78 br i1 %q, label %return, label %alt_return
81 %c = bitcast i32* %x to i8*
82 call void @objc_release(i8* %c) nounwind
89 ; Like test0 but the pointer is passed to an intervening call,
90 ; so the optimization is not safe.
92 ; CHECK: define void @test2(
93 ; CHECK: @objc_retain(i8* %a)
94 ; CHECK: @objc_release
96 define void @test2(i32* %x, i1 %p) nounwind {
98 %a = bitcast i32* %x to i8*
99 %0 = call i8* @objc_retain(i8* %a) nounwind
100 br i1 %p, label %t, label %f
104 %b = bitcast i32* %x to float*
105 store float 2.0, float* %b
110 call void @use_pointer(i8* %0)
111 %d = bitcast i32* %x to float*
112 store float 3.0, float* %d
116 %c = bitcast i32* %x to i8*
117 call void @objc_release(i8* %c) nounwind
121 ; Like test0 but the release is in a loop,
122 ; so the optimization is not safe.
124 ; TODO: For now, assume this can't happen.
126 ; CHECK: define void @test3(
127 ; TODO: @objc_retain(i8* %a)
128 ; TODO: @objc_release
130 define void @test3(i32* %x, i1* %q) nounwind {
132 %a = bitcast i32* %x to i8*
133 %0 = call i8* @objc_retain(i8* %a) nounwind
137 %c = bitcast i32* %x to i8*
138 call void @objc_release(i8* %c) nounwind
139 %j = volatile load i1* %q
140 br i1 %j, label %loop, label %return
146 ; TODO: For now, assume this can't happen.
148 ; Like test0 but the retain is in a loop,
149 ; so the optimization is not safe.
151 ; CHECK: define void @test4(
152 ; TODO: @objc_retain(i8* %a)
153 ; TODO: @objc_release
155 define void @test4(i32* %x, i1* %q) nounwind {
160 %a = bitcast i32* %x to i8*
161 %0 = call i8* @objc_retain(i8* %a) nounwind
162 %j = volatile load i1* %q
163 br i1 %j, label %loop, label %return
166 %c = bitcast i32* %x to i8*
167 call void @objc_release(i8* %c) nounwind
171 ; Like test0 but the pointer is conditionally passed to an intervening call,
172 ; so the optimization is not safe.
174 ; CHECK: define void @test5(
175 ; CHECK: @objc_retain(i8*
176 ; CHECK: @objc_release
178 define void @test5(i32* %x, i1 %q, i8* %y) nounwind {
180 %a = bitcast i32* %x to i8*
181 %0 = call i8* @objc_retain(i8* %a) nounwind
182 %s = select i1 %q, i8* %y, i8* %0
183 call void @use_pointer(i8* %s)
185 %c = bitcast i32* %x to i8*
186 call void @objc_release(i8* %c) nounwind
190 ; retain+release pair deletion, where the release happens on two different
193 ; CHECK: define void @test6(
196 define void @test6(i32* %x, i1 %p) nounwind {
198 %a = bitcast i32* %x to i8*
199 %0 = call i8* @objc_retain(i8* %a) nounwind
200 br i1 %p, label %t, label %f
204 %b = bitcast i32* %x to float*
205 store float 2.0, float* %b
206 %ct = bitcast i32* %x to i8*
207 call void @objc_release(i8* %ct) nounwind
213 %cf = bitcast i32* %x to i8*
214 call void @objc_release(i8* %cf) nounwind
221 ; retain+release pair deletion, where the retain happens on two different
224 ; CHECK: define void @test7(
227 define void @test7(i32* %x, i1 %p) nounwind {
229 %a = bitcast i32* %x to i8*
230 br i1 %p, label %t, label %f
233 %0 = call i8* @objc_retain(i8* %a) nounwind
235 %b = bitcast i32* %x to float*
236 store float 2.0, float* %b
240 %1 = call i8* @objc_retain(i8* %a) nounwind
246 %c = bitcast i32* %x to i8*
247 call void @objc_release(i8* %c) nounwind
251 ; Like test7, but there's a retain/retainBlock mismatch. Don't delete!
253 ; CHECK: define void @test7b
255 ; CHECK: call i8* @objc_retainBlock
257 ; CHECK: call i8* @objc_retain
259 ; CHECK: call void @objc_release
261 define void @test7b(i32* %x, i1 %p) nounwind {
263 %a = bitcast i32* %x to i8*
264 br i1 %p, label %t, label %f
267 %0 = call i8* @objc_retainBlock(i8* %a) nounwind
269 %b = bitcast i32* %x to float*
270 store float 2.0, float* %b
274 %1 = call i8* @objc_retain(i8* %a) nounwind
280 %c = bitcast i32* %x to i8*
281 call void @objc_release(i8* %c) nounwind
285 ; retain+release pair deletion, where the retain and release both happen on
286 ; different flow paths. Wild!
288 ; CHECK: define void @test8(
291 define void @test8(i32* %x, i1 %p, i1 %q) nounwind {
293 %a = bitcast i32* %x to i8*
294 br i1 %p, label %t, label %f
297 %0 = call i8* @objc_retain(i8* %a) nounwind
299 %b = bitcast i32* %x to float*
300 store float 2.0, float* %b
304 %1 = call i8* @objc_retain(i8* %a) nounwind
309 br i1 %q, label %u, label %g
313 %cu = bitcast i32* %x to i8*
314 call void @objc_release(i8* %cu) nounwind
318 %cg = bitcast i32* %x to i8*
319 call void @objc_release(i8* %cg) nounwind
326 ; Trivial retain+release pair deletion.
328 ; CHECK: define void @test9(
331 define void @test9(i8* %x) nounwind {
333 %0 = call i8* @objc_retain(i8* %x) nounwind
334 call void @objc_release(i8* %0) nounwind
338 ; Retain+release pair, but on an unknown pointer relationship. Don't delete!
340 ; CHECK: define void @test9b
341 ; CHECK: @objc_retain(i8* %x)
342 ; CHECK: @objc_release(i8* %s)
344 define void @test9b(i8* %x, i1 %j, i8* %p) nounwind {
346 %0 = call i8* @objc_retain(i8* %x) nounwind
347 %s = select i1 %j, i8* %x, i8* %p
348 call void @objc_release(i8* %s) nounwind
352 ; Trivial retain+release pair with intervening calls - don't delete!
354 ; CHECK: define void @test10(
355 ; CHECK: @objc_retain(i8* %x)
356 ; CHECK: @use_pointer
357 ; CHECK: @objc_release
359 define void @test10(i8* %x) nounwind {
361 %0 = call i8* @objc_retain(i8* %x) nounwind
362 call void @use_pointer(i8* %x)
363 call void @use_pointer(i8* %x)
364 call void @objc_release(i8* %0) nounwind
368 ; Trivial retain+autoreleaserelease pair. Don't delete!
369 ; Also, add a tail keyword, since objc_retain can never be passed
372 ; CHECK: define void @test11(
373 ; CHECK: tail call i8* @objc_retain(i8* %x) nounwind
374 ; CHECK: tail call i8* @objc_autorelease(i8* %0) nounwind
376 define void @test11(i8* %x) nounwind {
378 %0 = call i8* @objc_retain(i8* %x) nounwind
379 call i8* @objc_autorelease(i8* %0) nounwind
380 call void @use_pointer(i8* %x)
384 ; Same as test11 but with no use_pointer call. Delete the pair!
386 ; CHECK: define void @test11a(
388 ; CHECK-NEXT: ret void
390 define void @test11a(i8* %x) nounwind {
392 %0 = call i8* @objc_retain(i8* %x) nounwind
393 call i8* @objc_autorelease(i8* %0) nounwind
397 ; Same as test11 but the value is returned. Do an RV optimization.
399 ; CHECK: define i8* @test11b(
400 ; CHECK: tail call i8* @objc_retain(i8* %x) nounwind
401 ; CHECK: tail call i8* @objc_autoreleaseReturnValue(i8* %0) nounwind
403 define i8* @test11b(i8* %x) nounwind {
405 %0 = call i8* @objc_retain(i8* %x) nounwind
406 call i8* @objc_autorelease(i8* %0) nounwind
410 ; Trivial retain,release pair with intervening call, but it's dominated
411 ; by another retain - delete!
413 ; CHECK: define void @test12(
415 ; CHECK-NEXT: @objc_retain(i8* %x)
418 define void @test12(i8* %x, i64 %n) {
420 call i8* @objc_retain(i8* %x) nounwind
421 call i8* @objc_retain(i8* %x) nounwind
422 call void @use_pointer(i8* %x)
423 call void @use_pointer(i8* %x)
424 call void @objc_release(i8* %x) nounwind
428 ; Trivial retain,autorelease pair. Don't delete!
430 ; CHECK: define void @test13(
431 ; CHECK: tail call i8* @objc_retain(i8* %x) nounwind
432 ; CHECK: tail call i8* @objc_retain(i8* %x) nounwind
433 ; CHECK: @use_pointer(i8* %x)
434 ; CHECK: tail call i8* @objc_autorelease(i8* %x) nounwind
436 define void @test13(i8* %x, i64 %n) {
438 call i8* @objc_retain(i8* %x) nounwind
439 call i8* @objc_retain(i8* %x) nounwind
440 call void @use_pointer(i8* %x)
441 call i8* @objc_autorelease(i8* %x) nounwind
445 ; Delete the retain+release pair.
447 ; CHECK: define void @test13b
449 ; CHECK-NEXT: @objc_retain(i8* %x)
450 ; CHECK-NEXT: @use_pointer
451 ; CHECK-NEXT: @use_pointer
452 ; CHECK-NEXT: ret void
453 define void @test13b(i8* %x, i64 %n) {
455 call i8* @objc_retain(i8* %x) nounwind
456 call i8* @objc_retain(i8* %x) nounwind
457 call void @use_pointer(i8* %x)
458 call void @use_pointer(i8* %x)
459 call void @objc_release(i8* %x) nounwind
463 ; Don't delete the retain+release pair because there's an
464 ; autoreleasePoolPop in the way.
466 ; CHECK: define void @test13c
467 ; CHECK: @objc_retain(i8* %x)
468 ; CHECK: @objc_autoreleasePoolPop
469 ; CHECK: @objc_retain(i8* %x)
470 ; CHECK: @use_pointer
471 ; CHECK: @objc_release
473 define void @test13c(i8* %x, i64 %n) {
475 call i8* @objc_retain(i8* %x) nounwind
476 call void @objc_autoreleasePoolPop(i8* undef)
477 call i8* @objc_retain(i8* %x) nounwind
478 call void @use_pointer(i8* %x)
479 call void @use_pointer(i8* %x)
480 call void @objc_release(i8* %x) nounwind
484 ; Like test13c, but there's an autoreleasePoolPush in the way, but that
487 ; CHECK: define void @test13d
489 ; CHECK-NEXT: @objc_retain(i8* %x)
490 ; CHECK-NEXT: @objc_autoreleasePoolPush
491 ; CHECK-NEXT: @use_pointer
492 ; CHECK-NEXT: @use_pointer
493 ; CHECK-NEXT: ret void
494 define void @test13d(i8* %x, i64 %n) {
496 call i8* @objc_retain(i8* %x) nounwind
497 call void @objc_autoreleasePoolPush()
498 call i8* @objc_retain(i8* %x) nounwind
499 call void @use_pointer(i8* %x)
500 call void @use_pointer(i8* %x)
501 call void @objc_release(i8* %x) nounwind
505 ; Trivial retain,release pair with intervening call, but it's post-dominated
506 ; by another release - delete!
508 ; CHECK: define void @test14(
510 ; CHECK-NEXT: @use_pointer
511 ; CHECK-NEXT: @use_pointer
512 ; CHECK-NEXT: @objc_release
513 ; CHECK-NEXT: ret void
515 define void @test14(i8* %x, i64 %n) {
517 call i8* @objc_retain(i8* %x) nounwind
518 call void @use_pointer(i8* %x)
519 call void @use_pointer(i8* %x)
520 call void @objc_release(i8* %x) nounwind
521 call void @objc_release(i8* %x) nounwind
525 ; Trivial retain,autorelease pair with intervening call, but it's post-dominated
526 ; by another release. Don't delete anything.
528 ; CHECK: define void @test15(
530 ; CHECK-NEXT: @objc_retain(i8* %x)
531 ; CHECK-NEXT: @use_pointer
532 ; CHECK-NEXT: @objc_autorelease(i8* %x)
533 ; CHECK-NEXT: @objc_release
534 ; CHECK-NEXT: ret void
536 define void @test15(i8* %x, i64 %n) {
538 call i8* @objc_retain(i8* %x) nounwind
539 call void @use_pointer(i8* %x)
540 call i8* @objc_autorelease(i8* %x) nounwind
541 call void @objc_release(i8* %x) nounwind
545 ; Trivial retain,autorelease pair, post-dominated
546 ; by another release. Delete the retain and release.
548 ; CHECK: define void @test15b
550 ; CHECK-NEXT: @objc_autorelease
551 ; CHECK-NEXT: ret void
553 define void @test15b(i8* %x, i64 %n) {
555 call i8* @objc_retain(i8* %x) nounwind
556 call i8* @objc_autorelease(i8* %x) nounwind
557 call void @objc_release(i8* %x) nounwind
561 ; Retain+release pairs in diamonds, all dominated by a retain.
563 ; CHECK: define void @test16(
564 ; CHECK: @objc_retain(i8* %x)
567 define void @test16(i1 %a, i1 %b, i8* %x) {
569 call i8* @objc_retain(i8* %x) nounwind
570 br i1 %a, label %red, label %orange
573 call i8* @objc_retain(i8* %x) nounwind
577 call i8* @objc_retain(i8* %x) nounwind
581 call void @use_pointer(i8* %x)
582 call void @use_pointer(i8* %x)
583 br i1 %b, label %green, label %blue
586 call void @objc_release(i8* %x) nounwind
590 call void @objc_release(i8* %x) nounwind
597 ; Retain+release pairs in diamonds, all post-dominated by a release.
599 ; CHECK: define void @test17(
602 ; CHECK: @objc_release
604 define void @test17(i1 %a, i1 %b, i8* %x) {
606 br i1 %a, label %red, label %orange
609 call i8* @objc_retain(i8* %x) nounwind
613 call i8* @objc_retain(i8* %x) nounwind
617 call void @use_pointer(i8* %x)
618 call void @use_pointer(i8* %x)
619 br i1 %b, label %green, label %blue
622 call void @objc_release(i8* %x) nounwind
626 call void @objc_release(i8* %x) nounwind
630 call void @objc_release(i8* %x) nounwind
636 ; CHECK: define void @test18(
639 define void @test18() {
640 call i8* @objc_retain(i8* null)
641 call void @objc_release(i8* null)
642 call i8* @objc_autorelease(i8* null)
646 ; Delete no-ops where undef can be assumed to be null.
648 ; CHECK: define void @test18b
651 define void @test18b() {
652 call i8* @objc_retain(i8* undef)
653 call void @objc_release(i8* undef)
654 call i8* @objc_autorelease(i8* undef)
658 ; Replace uses of arguments with uses of return values, to reduce
661 ; CHECK: define void @test19(i32* %y) {
662 ; CHECK: %z = bitcast i32* %y to i8*
663 ; CHECK: %0 = bitcast i32* %y to i8*
664 ; CHECK: %1 = tail call i8* @objc_retain(i8* %0)
665 ; CHECK: call void @use_pointer(i8* %z)
666 ; CHECK: call void @use_pointer(i8* %z)
667 ; CHECK: %2 = bitcast i32* %y to i8*
668 ; CHECK: call void @objc_release(i8* %2)
671 define void @test19(i32* %y) {
673 %x = bitcast i32* %y to i8*
674 %0 = call i8* @objc_retain(i8* %x) nounwind
675 %z = bitcast i32* %y to i8*
676 call void @use_pointer(i8* %z)
677 call void @use_pointer(i8* %z)
678 call void @objc_release(i8* %x)
684 ; CHECK: define void @test20(
685 ; CHECK: %tmp1 = tail call i8* @objc_retain(i8* %tmp) nounwind
687 define void @test20(double* %self) {
689 %tmp = bitcast double* %self to i8*
690 %tmp1 = call i8* @objc_retain(i8* %tmp) nounwind
691 invoke void @invokee()
692 to label %invoke.cont23 unwind label %lpad20
694 invoke.cont23: ; preds = %if.then12
695 invoke void @invokee()
696 to label %if.end unwind label %lpad20
698 lpad20: ; preds = %invoke.cont23, %if.then12
699 %tmp502 = phi double* [ undef, %invoke.cont23 ], [ %self, %if.then12 ]
702 if.end: ; preds = %invoke.cont23
706 ; Delete a redundant retain,autorelease when forwaring a call result
707 ; directly to a return value.
709 ; CHECK: define i8* @test21(
710 ; CHECK: call i8* @returner()
711 ; CHECK-NEXT: ret i8* %call
712 define i8* @test21() {
714 %call = call i8* @returner()
715 %0 = call i8* @objc_retain(i8* %call) nounwind
716 %1 = call i8* @objc_autorelease(i8* %0) nounwind
720 ; Move an objc call up through a phi that has null operands.
722 ; CHECK: define void @test22(
724 ; CHECK: %1 = bitcast double* %p to i8*
725 ; CHECK: call void @objc_release(i8* %1)
727 ; CHECK: C: ; preds = %B, %A
728 ; CHECK-NOT: @objc_release
730 define void @test22(double* %p, i1 %a) {
731 br i1 %a, label %A, label %B
737 %h = phi double* [ null, %A ], [ %p, %B ]
738 %c = bitcast double* %h to i8*
739 call void @objc_release(i8* %c)
743 ; Optimize objc_retainBlock.
745 ; CHECK: define void @test23(
748 %block0 = type { i64, i64, i8*, i8* }
749 %block1 = type { i8**, i32, i32, i32 (%struct.__block_literal_1*)*, %block0* }
750 %struct.__block_descriptor = type { i64, i64 }
751 %struct.__block_literal_1 = type { i8**, i32, i32, i8**, %struct.__block_descriptor* }
752 @__block_holder_tmp_1 = external constant %block1
753 define void @test23() {
755 %0 = call i8* @objc_retainBlock(i8* bitcast (%block1* @__block_holder_tmp_1 to i8*)) nounwind
756 call void @bar(i32 ()* bitcast (%block1* @__block_holder_tmp_1 to i32 ()*))
757 call void @bar(i32 ()* bitcast (%block1* @__block_holder_tmp_1 to i32 ()*))
758 call void @objc_release(i8* bitcast (%block1* @__block_holder_tmp_1 to i8*)) nounwind
762 ; Don't optimize objc_retainBlock.
764 ; CHECK: define void @test23b
765 ; CHECK: @objc_retainBlock
766 ; CHECK: @objc_release
768 define void @test23b(i8* %p) {
770 %0 = call i8* @objc_retainBlock(i8* %p) nounwind
771 call void @use_pointer(i8* %p)
772 call void @use_pointer(i8* %p)
773 call void @objc_release(i8* %p) nounwind
777 ; Any call can decrement a retain count.
779 ; CHECK: define void @test24(
780 ; CHECK: @objc_retain(i8* %a)
781 ; CHECK: @objc_release
783 define void @test24(i8* %r, i8* %a) {
784 call i8* @objc_retain(i8* %a)
785 call void @use_pointer(i8* %r)
787 call void @objc_release(i8* %a)
791 ; Don't move a retain/release pair if the release can be moved
792 ; but the retain can't be moved to balance it.
794 ; CHECK: define void @test25(
796 ; CHECK: call i8* @objc_retain(i8* %p)
799 ; CHECK: call void @objc_release(i8* %p)
801 define void @test25(i8* %p, i1 %x) {
803 %f0 = call i8* @objc_retain(i8* %p)
805 br i1 %x, label %true, label %done
812 call void @objc_release(i8* %p)
816 ; Don't move a retain/release pair if the retain can be moved
817 ; but the release can't be moved to balance it.
819 ; CHECK: define void @test26(
821 ; CHECK: call i8* @objc_retain(i8* %p)
824 ; CHECK: call void @objc_release(i8* %p)
826 define void @test26(i8* %p, i1 %x) {
828 %f0 = call i8* @objc_retain(i8* %p)
829 br i1 %x, label %true, label %done
837 call void @objc_release(i8* %p)
841 ; Don't sink the retain,release into the loop.
843 ; CHECK: define void @test27(
845 ; CHECK: call i8* @objc_retain(i8* %p)
849 ; CHECK: call void @objc_release
851 define void @test27(i8* %p, i1 %x, i1 %y) {
853 %f0 = call i8* @objc_retain(i8* %p)
854 br i1 %x, label %loop, label %done
859 br i1 %y, label %done, label %loop
862 call void @objc_release(i8* %p)
866 ; Trivial code motion case: Triangle.
868 ; CHECK: define void @test28(
871 ; CHECK: call i8* @objc_retain(
872 ; CHECK: call void @callee()
874 ; CHECK: call void @objc_release
878 define void @test28(i8* %p, i1 %x) {
880 %f0 = call i8* @objc_retain(i8* %p)
881 br i1 %x, label %true, label %done
889 call void @objc_release(i8* %p), !clang.imprecise_release !0
893 ; Trivial code motion case: Triangle, but no metadata. Don't move past
894 ; unrelated memory references!
896 ; CHECK: define void @test28b
897 ; CHECK: call i8* @objc_retain(
900 ; CHECK: call void @callee()
905 ; CHECK: @objc_release
907 define void @test28b(i8* %p, i1 %x, i8* noalias %t) {
909 %f0 = call i8* @objc_retain(i8* %p)
910 br i1 %x, label %true, label %done
919 call void @objc_release(i8* %p)
923 ; Trivial code motion case: Triangle, with metadata. Do move past
924 ; unrelated memory references! And preserve the metadata.
926 ; CHECK: define void @test28c
929 ; CHECK: call i8* @objc_retain(
930 ; CHECK: call void @callee()
932 ; CHECK: call void @objc_release(i8* %p) nounwind, !clang.imprecise_release
936 define void @test28c(i8* %p, i1 %x, i8* noalias %t) {
938 %f0 = call i8* @objc_retain(i8* %p)
939 br i1 %x, label %true, label %done
948 call void @objc_release(i8* %p), !clang.imprecise_release !0
952 ; Like test28. but with two releases.
954 ; CHECK: define void @test29(
957 ; CHECK: call i8* @objc_retain(
958 ; CHECK: call void @callee()
960 ; CHECK: call void @objc_release
961 ; CHECK-NOT: @objc_release
967 define void @test29(i8* %p, i1 %x, i1 %y) {
969 %f0 = call i8* @objc_retain(i8* %p)
970 br i1 %x, label %true, label %done
975 br i1 %y, label %done, label %ohno
978 call void @objc_release(i8* %p)
982 call void @objc_release(i8* %p)
986 ; Basic case with the use and call in a diamond
987 ; with an extra release.
989 ; CHECK: define void @test30(
992 ; CHECK: call i8* @objc_retain(
993 ; CHECK: call void @callee()
995 ; CHECK: call void @objc_release
996 ; CHECK-NOT: @objc_release
1004 define void @test30(i8* %p, i1 %x, i1 %y, i1 %z) {
1006 %f0 = call i8* @objc_retain(i8* %p)
1007 br i1 %x, label %true, label %false
1012 br i1 %y, label %done, label %ohno
1015 br i1 %z, label %done, label %ohno
1018 call void @objc_release(i8* %p)
1022 call void @objc_release(i8* %p)
1026 ; Basic case with a mergeable release.
1028 ; CHECK: define void @test31(
1029 ; CHECK: call i8* @objc_retain(i8* %p)
1030 ; CHECK: call void @callee()
1032 ; CHECK: call void @objc_release
1033 ; CHECK-NOT: @objc_release
1035 ; CHECK-NOT: @objc_release
1037 ; CHECK-NOT: @objc_release
1039 ; CHECK-NOT: @objc_release
1041 define void @test31(i8* %p, i1 %x) {
1043 %f0 = call i8* @objc_retain(i8* %p)
1046 br i1 %x, label %true, label %false
1048 call void @objc_release(i8* %p)
1051 call void @objc_release(i8* %p)
1055 ; Don't consider bitcasts or getelementptrs direct uses.
1057 ; CHECK: define void @test32(
1060 ; CHECK: call i8* @objc_retain(
1061 ; CHECK: call void @callee()
1063 ; CHECK: call void @objc_release
1067 define void @test32(i8* %p, i1 %x) {
1069 %f0 = call i8* @objc_retain(i8* %p)
1070 br i1 %x, label %true, label %done
1078 %g = bitcast i8* %p to i8*
1079 %h = getelementptr i8* %g, i64 0
1080 call void @objc_release(i8* %g)
1084 ; Do consider icmps to be direct uses.
1086 ; CHECK: define void @test33(
1089 ; CHECK: call i8* @objc_retain(
1090 ; CHECK: call void @callee()
1092 ; CHECK: call void @objc_release
1096 define void @test33(i8* %p, i1 %x, i8* %y) {
1098 %f0 = call i8* @objc_retain(i8* %p)
1099 br i1 %x, label %true, label %done
1103 %v = icmp eq i8* %p, %y
1107 %g = bitcast i8* %p to i8*
1108 %h = getelementptr i8* %g, i64 0
1109 call void @objc_release(i8* %g)
1113 ; Delete retain,release if there's just a possible dec.
1115 ; CHECK: define void @test34(
1118 define void @test34(i8* %p, i1 %x, i8* %y) {
1120 %f0 = call i8* @objc_retain(i8* %p)
1121 br i1 %x, label %true, label %done
1128 %g = bitcast i8* %p to i8*
1129 %h = getelementptr i8* %g, i64 0
1130 call void @objc_release(i8* %g)
1134 ; Delete retain,release if there's just a use.
1136 ; CHECK: define void @test35(
1139 define void @test35(i8* %p, i1 %x, i8* %y) {
1141 %f0 = call i8* @objc_retain(i8* %p)
1142 br i1 %x, label %true, label %done
1145 %v = icmp eq i8* %p, %y
1149 %g = bitcast i8* %p to i8*
1150 %h = getelementptr i8* %g, i64 0
1151 call void @objc_release(i8* %g)
1155 ; Delete a retain,release if there's no actual use.
1157 ; CHECK: define void @test36(
1159 ; CHECK: call void @callee()
1161 ; CHECK: call void @callee()
1164 define void @test36(i8* %p) {
1166 call i8* @objc_retain(i8* %p)
1169 call void @objc_release(i8* %p)
1173 ; Like test36, but with metadata.
1175 ; CHECK: define void @test37(
1178 define void @test37(i8* %p) {
1180 call i8* @objc_retain(i8* %p)
1183 call void @objc_release(i8* %p), !clang.imprecise_release !0
1187 ; Be aggressive about analyzing phis to eliminate possible uses.
1189 ; CHECK: define void @test38(
1192 define void @test38(i8* %p, i1 %u, i1 %m, i8* %z, i8* %y, i8* %x, i8* %w) {
1194 call i8* @objc_retain(i8* %p)
1195 br i1 %u, label %true, label %false
1197 br i1 %m, label %a, label %b
1199 br i1 %m, label %c, label %d
1209 %j = phi i8* [ %z, %a ], [ %y, %b ]
1212 %k = phi i8* [ %w, %c ], [ %x, %d ]
1215 %h = phi i8* [ %j, %e ], [ %k, %f ]
1216 call void @use_pointer(i8* %h)
1217 call void @objc_release(i8* %p), !clang.imprecise_release !0
1221 ; Delete retain,release pairs around loops.
1223 ; CHECK: define void @test39(
1226 define void @test39(i8* %p) {
1228 %0 = call i8* @objc_retain(i8* %p)
1231 loop: ; preds = %loop, %entry
1232 br i1 undef, label %loop, label %exit
1234 exit: ; preds = %loop
1235 call void @objc_release(i8* %0), !clang.imprecise_release !0
1239 ; Delete retain,release pairs around loops containing uses.
1241 ; CHECK: define void @test39b(
1244 define void @test39b(i8* %p) {
1246 %0 = call i8* @objc_retain(i8* %p)
1249 loop: ; preds = %loop, %entry
1251 br i1 undef, label %loop, label %exit
1253 exit: ; preds = %loop
1254 call void @objc_release(i8* %0), !clang.imprecise_release !0
1258 ; Delete retain,release pairs around loops containing potential decrements.
1260 ; CHECK: define void @test39c(
1263 define void @test39c(i8* %p) {
1265 %0 = call i8* @objc_retain(i8* %p)
1268 loop: ; preds = %loop, %entry
1269 call void @use_pointer(i8* %0)
1270 br i1 undef, label %loop, label %exit
1272 exit: ; preds = %loop
1273 call void @objc_release(i8* %0), !clang.imprecise_release !0
1277 ; Delete retain,release pairs around loops even if
1278 ; the successors are in a different order.
1280 ; CHECK: define void @test40(
1283 define void @test40(i8* %p) {
1285 %0 = call i8* @objc_retain(i8* %p)
1288 loop: ; preds = %loop, %entry
1289 call void @use_pointer(i8* %0)
1290 br i1 undef, label %exit, label %loop
1292 exit: ; preds = %loop
1293 call void @objc_release(i8* %0), !clang.imprecise_release !0
1297 ; Do the known-incremented retain+release elimination even if the pointer
1298 ; is also autoreleased.
1300 ; CHECK: define void @test42(
1301 ; CHECK-NEXT: entry:
1302 ; CHECK-NEXT: call i8* @objc_retain(i8* %p)
1303 ; CHECK-NEXT: call i8* @objc_autorelease(i8* %p)
1304 ; CHECK-NEXT: call void @use_pointer(i8* %p)
1305 ; CHECK-NEXT: call void @use_pointer(i8* %p)
1306 ; CHECK-NEXT: ret void
1308 define void @test42(i8* %p) {
1310 call i8* @objc_retain(i8* %p)
1311 call i8* @objc_autorelease(i8* %p)
1312 call i8* @objc_retain(i8* %p)
1313 call void @use_pointer(i8* %p)
1314 call void @use_pointer(i8* %p)
1315 call void @objc_release(i8* %p)
1319 ; Don't the known-incremented retain+release elimination if the pointer is
1320 ; autoreleased and there's an autoreleasePoolPop.
1322 ; CHECK: define void @test43(
1323 ; CHECK-NEXT: entry:
1324 ; CHECK-NEXT: call i8* @objc_retain(i8* %p)
1325 ; CHECK-NEXT: call i8* @objc_autorelease(i8* %p)
1326 ; CHECK-NEXT: call i8* @objc_retain
1327 ; CHECK-NEXT: call void @use_pointer(i8* %p)
1328 ; CHECK-NEXT: call void @use_pointer(i8* %p)
1329 ; CHECK-NEXT: call void @objc_autoreleasePoolPop(i8* undef)
1330 ; CHECK-NEXT: call void @objc_release
1331 ; CHECK-NEXT: ret void
1333 define void @test43(i8* %p) {
1335 call i8* @objc_retain(i8* %p)
1336 call i8* @objc_autorelease(i8* %p)
1337 call i8* @objc_retain(i8* %p)
1338 call void @use_pointer(i8* %p)
1339 call void @use_pointer(i8* %p)
1340 call void @objc_autoreleasePoolPop(i8* undef)
1341 call void @objc_release(i8* %p)
1345 ; Do the known-incremented retain+release elimination if the pointer is
1346 ; autoreleased and there's an autoreleasePoolPush.
1348 ; CHECK: define void @test43b
1349 ; CHECK-NEXT: entry:
1350 ; CHECK-NEXT: call i8* @objc_retain(i8* %p)
1351 ; CHECK-NEXT: call i8* @objc_autorelease(i8* %p)
1352 ; CHECK-NEXT: call void @use_pointer(i8* %p)
1353 ; CHECK-NEXT: call void @use_pointer(i8* %p)
1354 ; CHECK-NEXT: call void @objc_autoreleasePoolPush()
1355 ; CHECK-NEXT: ret void
1357 define void @test43b(i8* %p) {
1359 call i8* @objc_retain(i8* %p)
1360 call i8* @objc_autorelease(i8* %p)
1361 call i8* @objc_retain(i8* %p)
1362 call void @use_pointer(i8* %p)
1363 call void @use_pointer(i8* %p)
1364 call void @objc_autoreleasePoolPush()
1365 call void @objc_release(i8* %p)
1369 ; Do retain+release elimination for non-provenance pointers.
1371 ; CHECK: define void @test44(
1374 define void @test44(i8** %pp) {
1376 %q = call i8* @objc_retain(i8* %p)
1377 call void @objc_release(i8* %q)
1381 ; Don't delete retain+release with an unknown-provenance
1382 ; may-alias objc_release between them.
1384 ; CHECK: define void @test45(
1385 ; CHECK: call i8* @objc_retain(i8* %p)
1386 ; CHECK: call void @objc_release(i8* %q)
1387 ; CHECK: call void @use_pointer(i8* %p)
1388 ; CHECK: call void @objc_release(i8* %p)
1389 define void @test45(i8** %pp, i8** %qq) {
1392 call i8* @objc_retain(i8* %p)
1393 call void @objc_release(i8* %q)
1394 call void @use_pointer(i8* %p)
1395 call void @objc_release(i8* %p)
1399 ; Don't delete retain and autorelease here.
1401 ; CHECK: define void @test46(
1402 ; CHECK: tail call i8* @objc_retain(i8* %p) nounwind
1404 ; CHECK: tail call i8* @objc_autorelease(i8* %p) nounwind
1405 define void @test46(i8* %p, i1 %a) {
1407 call i8* @objc_retain(i8* %p)
1408 br i1 %a, label %true, label %false
1411 call i8* @objc_autorelease(i8* %p)
1412 call void @use_pointer(i8* %p)
1419 ; Delete no-op cast calls.
1421 ; CHECK: define i8* @test47(
1424 define i8* @test47(i8* %p) nounwind {
1425 %x = call i8* @objc_retainedObject(i8* %p)
1429 ; Delete no-op cast calls.
1431 ; CHECK: define i8* @test48(
1434 define i8* @test48(i8* %p) nounwind {
1435 %x = call i8* @objc_unretainedObject(i8* %p)
1439 ; Delete no-op cast calls.
1441 ; CHECK: define i8* @test49(
1444 define i8* @test49(i8* %p) nounwind {
1445 %x = call i8* @objc_unretainedPointer(i8* %p)
1449 ; Do delete retain+release with intervening stores of the
1452 ; CHECK: define void @test50(
1455 define void @test50(i8* %p, i8** %pp) {
1456 call i8* @objc_retain(i8* %p)
1458 store i8* %p, i8** %pp
1459 call void @objc_release(i8* %p)
1463 ; Don't delete retain+release with intervening stores through the
1466 ; CHECK: define void @test51(
1467 ; CHECK: call i8* @objc_retain(i8* %p)
1468 ; CHECK: call void @objc_release(i8* %p)
1469 define void @test51(i8* %p) {
1470 call i8* @objc_retain(i8* %p)
1473 call void @objc_release(i8* %p)
1477 ; Don't delete retain+release with intervening use of a pointer of
1478 ; unknown provenance.
1480 ; CHECK: define void @test52(
1481 ; CHECK: call i8* @objc_retain
1482 ; CHECK: call void @callee()
1483 ; CHECK: call void @use_pointer(i8* %z)
1484 ; CHECK: call void @objc_release
1485 define void @test52(i8** %zz, i8** %pp) {
1487 %1 = call i8* @objc_retain(i8* %p)
1490 call void @use_pointer(i8* %z)
1491 call void @objc_release(i8* %p)
1495 ; Like test52, but the pointer has function type, so it's assumed to
1496 ; be not reference counted.
1498 ; CHECK: define void @test53(
1501 define void @test53(void ()** %zz, i8** %pp) {
1503 %1 = call i8* @objc_retain(i8* %p)
1505 %z = load void ()** %zz
1506 call void @callee_fnptr(void ()* %z)
1507 call void @objc_release(i8* %p)
1511 ; Convert autorelease to release if the value is unused.
1513 ; CHECK: define void @test54(
1514 ; CHECK: call i8* @returner()
1515 ; CHECK-NEXT: call void @objc_release(i8* %t) nounwind, !clang.imprecise_release !0
1516 ; CHECK-NEXT: ret void
1517 define void @test54() {
1518 %t = call i8* @returner()
1519 call i8* @objc_autorelease(i8* %t)
1523 ; Nested retain+release pairs. Delete them both.
1525 ; CHECK: define void @test55(
1528 define void @test55(i8* %x) {
1530 %0 = call i8* @objc_retain(i8* %x) nounwind
1531 %1 = call i8* @objc_retain(i8* %x) nounwind
1532 call void @objc_release(i8* %x) nounwind
1533 call void @objc_release(i8* %x) nounwind
1537 ; Nested retain+release pairs where the inner pair depends
1538 ; on the outer pair to be removed, and then the outer pair
1539 ; can be partially eliminated. Plus an extra outer pair to
1540 ; eliminate, for fun.
1542 ; CHECK: define void @test56(
1545 ; CHECK-NEXT: %0 = tail call i8* @objc_retain(i8* %x) nounwind
1546 ; CHECK-NEXT: tail call void @use_pointer(i8* %x)
1547 ; CHECK-NEXT: tail call void @use_pointer(i8* %x)
1548 ; CHECK-NEXT: tail call void @objc_release(i8* %x) nounwind, !clang.imprecise_release !0
1549 ; CHECK-NEXT: br label %if.end
1552 define void @test56(i8* %x, i32 %n) {
1554 %0 = tail call i8* @objc_retain(i8* %x) nounwind
1555 %1 = tail call i8* @objc_retain(i8* %0) nounwind
1556 %tobool = icmp eq i32 %n, 0
1557 br i1 %tobool, label %if.end, label %if.then
1559 if.then: ; preds = %entry
1560 %2 = tail call i8* @objc_retain(i8* %1) nounwind
1561 tail call void @use_pointer(i8* %2)
1562 tail call void @use_pointer(i8* %2)
1563 tail call void @objc_release(i8* %2) nounwind, !clang.imprecise_release !0
1566 if.end: ; preds = %entry, %if.then
1567 tail call void @objc_release(i8* %1) nounwind, !clang.imprecise_release !0
1568 tail call void @objc_release(i8* %0) nounwind, !clang.imprecise_release !0
1572 declare void @bar(i32 ()*)
1574 ; A few real-world testcases.
1576 @.str4 = private unnamed_addr constant [33 x i8] c"-[A z] = { %f, %f, { %f, %f } }\0A\00"
1577 @"OBJC_IVAR_$_A.myZ" = global i64 20, section "__DATA, __objc_const", align 8
1578 declare i32 @printf(i8* nocapture, ...) nounwind
1579 declare i32 @puts(i8* nocapture) nounwind
1580 @str = internal constant [16 x i8] c"-[ Top0 _getX ]\00"
1582 ; CHECK: @"\01-[A z]"
1586 define {<2 x float>, <2 x float>} @"\01-[A z]"({}* %self, i8* nocapture %_cmd) nounwind {
1588 %0 = bitcast {}* %self to i8*
1589 %1 = tail call i8* @objc_retain(i8* %0) nounwind
1590 tail call void @llvm.dbg.value(metadata !{{}* %self}, i64 0, metadata !0)
1591 tail call void @llvm.dbg.value(metadata !{{}* %self}, i64 0, metadata !0)
1592 %ivar = load i64* @"OBJC_IVAR_$_A.myZ", align 8
1593 %add.ptr = getelementptr i8* %0, i64 %ivar
1594 %tmp1 = bitcast i8* %add.ptr to float*
1595 %tmp2 = load float* %tmp1, align 4
1596 %conv = fpext float %tmp2 to double
1597 %add.ptr.sum = add i64 %ivar, 4
1598 %tmp6 = getelementptr inbounds i8* %0, i64 %add.ptr.sum
1599 %2 = bitcast i8* %tmp6 to float*
1600 %tmp7 = load float* %2, align 4
1601 %conv8 = fpext float %tmp7 to double
1602 %add.ptr.sum36 = add i64 %ivar, 8
1603 %tmp12 = getelementptr inbounds i8* %0, i64 %add.ptr.sum36
1604 %arrayidx = bitcast i8* %tmp12 to float*
1605 %tmp13 = load float* %arrayidx, align 4
1606 %conv14 = fpext float %tmp13 to double
1607 %tmp12.sum = add i64 %ivar, 12
1608 %arrayidx19 = getelementptr inbounds i8* %0, i64 %tmp12.sum
1609 %3 = bitcast i8* %arrayidx19 to float*
1610 %tmp20 = load float* %3, align 4
1611 %conv21 = fpext float %tmp20 to double
1612 %call = tail call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([33 x i8]* @.str4, i64 0, i64 0), double %conv, double %conv8, double %conv14, double %conv21)
1613 %ivar23 = load i64* @"OBJC_IVAR_$_A.myZ", align 8
1614 %add.ptr24 = getelementptr i8* %0, i64 %ivar23
1615 %4 = bitcast i8* %add.ptr24 to i128*
1616 %srcval = load i128* %4, align 4
1617 tail call void @objc_release(i8* %0) nounwind
1618 %tmp29 = trunc i128 %srcval to i64
1619 %tmp30 = bitcast i64 %tmp29 to <2 x float>
1620 %tmp31 = insertvalue {<2 x float>, <2 x float>} undef, <2 x float> %tmp30, 0
1621 %tmp32 = lshr i128 %srcval, 64
1622 %tmp33 = trunc i128 %tmp32 to i64
1623 %tmp34 = bitcast i64 %tmp33 to <2 x float>
1624 %tmp35 = insertvalue {<2 x float>, <2 x float>} %tmp31, <2 x float> %tmp34, 1
1625 ret {<2 x float>, <2 x float>} %tmp35
1628 ; CHECK: @"\01-[Top0 _getX]"
1632 define i32 @"\01-[Top0 _getX]"({}* %self, i8* nocapture %_cmd) nounwind {
1634 %0 = bitcast {}* %self to i8*
1635 %1 = tail call i8* @objc_retain(i8* %0) nounwind
1636 %puts = tail call i32 @puts(i8* getelementptr inbounds ([16 x i8]* @str, i64 0, i64 0))
1637 tail call void @objc_release(i8* %0) nounwind
1641 @"\01L_OBJC_METH_VAR_NAME_" = internal global [5 x i8] c"frob\00", section "__TEXT,__cstring,cstring_literals", align 1@"\01L_OBJC_SELECTOR_REFERENCES_" = internal global i8* getelementptr inbounds ([5 x i8]* @"\01L_OBJC_METH_VAR_NAME_", i64 0, i64 0), section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
1642 @"\01L_OBJC_IMAGE_INFO" = internal constant [2 x i32] [i32 0, i32 16], section "__DATA, __objc_imageinfo, regular, no_dead_strip"
1643 @llvm.used = appending global [3 x i8*] [i8* getelementptr inbounds ([5 x i8]* @"\01L_OBJC_METH_VAR_NAME_", i32 0, i32 0), i8* bitcast (i8** @"\01L_OBJC_SELECTOR_REFERENCES_" to i8*), i8* bitcast ([2 x i32]* @"\01L_OBJC_IMAGE_INFO" to i8*)], section "llvm.metadata"
1645 ; A simple loop. Eliminate the retain and release inside of it!
1647 ; CHECK: define void @loop
1650 ; CHECK: @objc_msgSend
1653 define void @loop(i8* %x, i64 %n) {
1655 %0 = tail call i8* @objc_retain(i8* %x) nounwind
1656 %cmp9 = icmp sgt i64 %n, 0
1657 br i1 %cmp9, label %for.body, label %for.end
1659 for.body: ; preds = %entry, %for.body
1660 %i.010 = phi i64 [ %inc, %for.body ], [ 0, %entry ]
1661 %1 = tail call i8* @objc_retain(i8* %x) nounwind
1662 %tmp5 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_", align 8
1663 %call = tail call i8* (i8*, i8*, ...)* @objc_msgSend(i8* %1, i8* %tmp5)
1664 tail call void @objc_release(i8* %1) nounwind, !clang.imprecise_release !0
1665 %inc = add nsw i64 %i.010, 1
1666 %exitcond = icmp eq i64 %inc, %n
1667 br i1 %exitcond, label %for.end, label %for.body
1669 for.end: ; preds = %for.body, %entry
1670 tail call void @objc_release(i8* %x) nounwind, !clang.imprecise_release !0
1674 ; ObjCARCOpt can delete the retain,release on self.
1676 ; CHECK: define void @TextEditTest
1677 ; CHECK-NOT: call i8* @objc_retain(i8* %tmp7)
1680 %0 = type { i8* (i8*, %struct._message_ref_t*, ...)*, i8* }
1686 %struct.NSConstantString = type { i32*, i32, i8*, i64 }
1687 %struct._NSRange = type { i64, i64 }
1688 %struct.__CFString = type opaque
1689 %struct.__method_list_t = type { i32, i32, [0 x %struct._objc_method] }
1690 %struct._class_ro_t = type { i32, i32, i32, i8*, i8*, %struct.__method_list_t*, %struct._objc_protocol_list*, %struct._ivar_list_t*, i8*, %struct._prop_list_t* }
1691 %struct._class_t = type { %struct._class_t*, %struct._class_t*, %struct._objc_cache*, i8* (i8*, i8*)**, %struct._class_ro_t* }
1692 %struct._ivar_list_t = type { i32, i32, [0 x %struct._ivar_t] }
1693 %struct._ivar_t = type { i64*, i8*, i8*, i32, i32 }
1694 %struct._message_ref_t = type { i8*, i8* }
1695 %struct._objc_cache = type opaque
1696 %struct._objc_method = type { i8*, i8*, i8* }
1697 %struct._objc_protocol_list = type { i64, [0 x %struct._protocol_t*] }
1698 %struct._prop_list_t = type { i32, i32, [0 x %struct._message_ref_t] }
1699 %struct._protocol_t = type { i8*, i8*, %struct._objc_protocol_list*, %struct.__method_list_t*, %struct.__method_list_t*, %struct.__method_list_t*, %struct.__method_list_t*, %struct._prop_list_t*, i32, i32 }
1701 @"\01L_OBJC_CLASSLIST_REFERENCES_$_17" = external hidden global %struct._class_t*, section "__DATA, __objc_classrefs, regular, no_dead_strip", align 8
1702 @kUTTypePlainText = external constant %struct.__CFString*
1703 @"\01L_OBJC_SELECTOR_REFERENCES_19" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
1704 @"\01L_OBJC_SELECTOR_REFERENCES_21" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
1705 @"\01L_OBJC_SELECTOR_REFERENCES_23" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
1706 @"\01L_OBJC_SELECTOR_REFERENCES_25" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
1707 @"\01L_OBJC_CLASSLIST_REFERENCES_$_26" = external hidden global %struct._class_t*, section "__DATA, __objc_classrefs, regular, no_dead_strip", align 8
1708 @"\01L_OBJC_SELECTOR_REFERENCES_28" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
1709 @"\01L_OBJC_CLASSLIST_REFERENCES_$_29" = external hidden global %struct._class_t*, section "__DATA, __objc_classrefs, regular, no_dead_strip", align 8
1710 @"\01L_OBJC_SELECTOR_REFERENCES_31" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
1711 @"\01L_OBJC_SELECTOR_REFERENCES_33" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
1712 @"\01L_OBJC_SELECTOR_REFERENCES_35" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
1713 @"\01L_OBJC_SELECTOR_REFERENCES_37" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
1714 @"\01L_OBJC_CLASSLIST_REFERENCES_$_38" = external hidden global %struct._class_t*, section "__DATA, __objc_classrefs, regular, no_dead_strip", align 8
1715 @"\01L_OBJC_SELECTOR_REFERENCES_40" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
1716 @"\01L_OBJC_SELECTOR_REFERENCES_42" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
1717 @_unnamed_cfstring_44 = external hidden constant %struct.NSConstantString, section "__DATA,__cfstring"
1718 @"\01L_OBJC_SELECTOR_REFERENCES_46" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
1719 @"\01L_OBJC_SELECTOR_REFERENCES_48" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
1720 @"\01l_objc_msgSend_fixup_isEqual_" = external hidden global %0, section "__DATA, __objc_msgrefs, coalesced", align 16
1721 @"\01L_OBJC_CLASSLIST_REFERENCES_$_50" = external hidden global %struct._class_t*, section "__DATA, __objc_classrefs, regular, no_dead_strip", align 8
1722 @NSCocoaErrorDomain = external constant %1*
1723 @"\01L_OBJC_CLASSLIST_REFERENCES_$_51" = external hidden global %struct._class_t*, section "__DATA, __objc_classrefs, regular, no_dead_strip", align 8
1724 @NSFilePathErrorKey = external constant %1*
1725 @"\01L_OBJC_SELECTOR_REFERENCES_53" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
1726 @"\01L_OBJC_SELECTOR_REFERENCES_55" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
1727 @"\01L_OBJC_CLASSLIST_REFERENCES_$_56" = external hidden global %struct._class_t*, section "__DATA, __objc_classrefs, regular, no_dead_strip", align 8
1728 @"\01L_OBJC_SELECTOR_REFERENCES_58" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
1729 @"\01L_OBJC_SELECTOR_REFERENCES_60" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
1731 declare %1* @truncatedString(%1*, i64)
1732 define void @TextEditTest(%2* %self, %3* %pboard) {
1734 %err = alloca %4*, align 8
1735 %tmp7 = bitcast %2* %self to i8*
1736 %tmp8 = call i8* @objc_retain(i8* %tmp7) nounwind
1737 store %4* null, %4** %err, align 8
1738 %tmp1 = load %struct._class_t** @"\01L_OBJC_CLASSLIST_REFERENCES_$_17", align 8
1739 %tmp2 = load %struct.__CFString** @kUTTypePlainText, align 8
1740 %tmp3 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_19", align 8
1741 %tmp4 = bitcast %struct._class_t* %tmp1 to i8*
1742 %call5 = call i8* (i8*, i8*, ...)* @objc_msgSend(i8* %tmp4, i8* %tmp3, %struct.__CFString* %tmp2)
1743 %tmp5 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_21", align 8
1744 %tmp6 = bitcast %3* %pboard to i8*
1745 %call76 = call i8* (i8*, i8*, ...)* @objc_msgSend(i8* %tmp6, i8* %tmp5, i8* %call5)
1746 %tmp9 = call i8* @objc_retain(i8* %call76) nounwind
1747 %tobool = icmp eq i8* %tmp9, null
1748 br i1 %tobool, label %end, label %land.lhs.true
1750 land.lhs.true: ; preds = %entry
1751 %tmp11 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_23", align 8
1752 %call137 = call i8* (i8*, i8*, ...)* @objc_msgSend(i8* %tmp6, i8* %tmp11, i8* %tmp9)
1753 %tmp = bitcast i8* %call137 to %1*
1754 %tmp10 = call i8* @objc_retain(i8* %call137) nounwind
1755 call void @objc_release(i8* null) nounwind
1756 %tmp12 = call i8* @objc_retain(i8* %call137) nounwind
1757 call void @objc_release(i8* null) nounwind
1758 %tobool16 = icmp eq i8* %call137, null
1759 br i1 %tobool16, label %end, label %if.then
1761 if.then: ; preds = %land.lhs.true
1762 %tmp19 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_25", align 8
1763 %call21 = call signext i8 bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8 (i8*, i8*)*)(i8* %call137, i8* %tmp19)
1764 %tobool22 = icmp eq i8 %call21, 0
1765 br i1 %tobool22, label %if.then44, label %land.lhs.true23
1767 land.lhs.true23: ; preds = %if.then
1768 %tmp24 = load %struct._class_t** @"\01L_OBJC_CLASSLIST_REFERENCES_$_26", align 8
1769 %tmp26 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_28", align 8
1770 %tmp27 = bitcast %struct._class_t* %tmp24 to i8*
1771 %call2822 = call i8* (i8*, i8*, ...)* @objc_msgSend(i8* %tmp27, i8* %tmp26, i8* %call137)
1772 %tmp13 = bitcast i8* %call2822 to %5*
1773 %tmp14 = call i8* @objc_retain(i8* %call2822) nounwind
1774 call void @objc_release(i8* null) nounwind
1775 %tobool30 = icmp eq i8* %call2822, null
1776 br i1 %tobool30, label %if.then44, label %if.end
1778 if.end: ; preds = %land.lhs.true23
1779 %tmp32 = load %struct._class_t** @"\01L_OBJC_CLASSLIST_REFERENCES_$_29", align 8
1780 %tmp33 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_31", align 8
1781 %tmp34 = bitcast %struct._class_t* %tmp32 to i8*
1782 %call35 = call i8* (i8*, i8*, ...)* @objc_msgSend(i8* %tmp34, i8* %tmp33)
1783 %tmp37 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_33", align 8
1784 %call3923 = call i8* (i8*, i8*, ...)* @objc_msgSend(i8* %call35, i8* %tmp37, i8* %call2822, i32 signext 1, %4** %err)
1785 %cmp = icmp eq i8* %call3923, null
1786 br i1 %cmp, label %if.then44, label %end
1788 if.then44: ; preds = %if.end, %land.lhs.true23, %if.then
1789 %url.025 = phi %5* [ %tmp13, %if.end ], [ %tmp13, %land.lhs.true23 ], [ null, %if.then ]
1790 %tmp49 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_35", align 8
1791 %call51 = call %struct._NSRange bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to %struct._NSRange (i8*, i8*, i64, i64)*)(i8* %call137, i8* %tmp49, i64 0, i64 0)
1792 %call513 = extractvalue %struct._NSRange %call51, 0
1793 %call514 = extractvalue %struct._NSRange %call51, 1
1794 %tmp52 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_37", align 8
1795 %call548 = call i8* (i8*, i8*, ...)* @objc_msgSend(i8* %call137, i8* %tmp52, i64 %call513, i64 %call514)
1796 %tmp55 = load %struct._class_t** @"\01L_OBJC_CLASSLIST_REFERENCES_$_38", align 8
1797 %tmp56 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_40", align 8
1798 %tmp57 = bitcast %struct._class_t* %tmp55 to i8*
1799 %call58 = call i8* (i8*, i8*, ...)* @objc_msgSend(i8* %tmp57, i8* %tmp56)
1800 %tmp59 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_42", align 8
1801 %call6110 = call i8* (i8*, i8*, ...)* @objc_msgSend(i8* %call548, i8* %tmp59, i8* %call58)
1802 %tmp15 = call i8* @objc_retain(i8* %call6110) nounwind
1803 call void @objc_release(i8* %call137) nounwind
1804 %tmp64 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_46", align 8
1805 %call66 = call signext i8 bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8 (i8*, i8*, %1*)*)(i8* %call6110, i8* %tmp64, %1* bitcast (%struct.NSConstantString* @_unnamed_cfstring_44 to %1*))
1806 %tobool67 = icmp eq i8 %call66, 0
1807 br i1 %tobool67, label %if.end74, label %if.then68
1809 if.then68: ; preds = %if.then44
1810 %tmp70 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_48", align 8
1811 %call7220 = call i8* (i8*, i8*, ...)* @objc_msgSend(i8* %call6110, i8* %tmp70)
1812 %tmp16 = call i8* @objc_retain(i8* %call7220) nounwind
1813 call void @objc_release(i8* %call6110) nounwind
1816 if.end74: ; preds = %if.then68, %if.then44
1817 %filename.0.in = phi i8* [ %call7220, %if.then68 ], [ %call6110, %if.then44 ]
1818 %filename.0 = bitcast i8* %filename.0.in to %1*
1819 %tmp17 = load i8** bitcast (%0* @"\01l_objc_msgSend_fixup_isEqual_" to i8**), align 16
1820 %tmp18 = bitcast i8* %tmp17 to i8 (i8*, %struct._message_ref_t*, i8*, ...)*
1821 %call78 = call signext i8 (i8*, %struct._message_ref_t*, i8*, ...)* %tmp18(i8* %call137, %struct._message_ref_t* bitcast (%0* @"\01l_objc_msgSend_fixup_isEqual_" to %struct._message_ref_t*), i8* %filename.0.in)
1822 %tobool79 = icmp eq i8 %call78, 0
1823 br i1 %tobool79, label %land.lhs.true80, label %if.then109
1825 land.lhs.true80: ; preds = %if.end74
1826 %tmp82 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_25", align 8
1827 %call84 = call signext i8 bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8 (i8*, i8*)*)(i8* %filename.0.in, i8* %tmp82)
1828 %tobool86 = icmp eq i8 %call84, 0
1829 br i1 %tobool86, label %if.then109, label %if.end106
1831 if.end106: ; preds = %land.lhs.true80
1832 %tmp88 = load %struct._class_t** @"\01L_OBJC_CLASSLIST_REFERENCES_$_26", align 8
1833 %tmp90 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_28", align 8
1834 %tmp91 = bitcast %struct._class_t* %tmp88 to i8*
1835 %call9218 = call i8* (i8*, i8*, ...)* @objc_msgSend(i8* %tmp91, i8* %tmp90, i8* %filename.0.in)
1836 %tmp20 = bitcast i8* %call9218 to %5*
1837 %tmp21 = call i8* @objc_retain(i8* %call9218) nounwind
1838 %tmp22 = bitcast %5* %url.025 to i8*
1839 call void @objc_release(i8* %tmp22) nounwind
1840 %tmp94 = load %struct._class_t** @"\01L_OBJC_CLASSLIST_REFERENCES_$_29", align 8
1841 %tmp95 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_31", align 8
1842 %tmp96 = bitcast %struct._class_t* %tmp94 to i8*
1843 %call97 = call i8* (i8*, i8*, ...)* @objc_msgSend(i8* %tmp96, i8* %tmp95)
1844 %tmp99 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_33", align 8
1845 %call10119 = call i8* (i8*, i8*, ...)* @objc_msgSend(i8* %call97, i8* %tmp99, i8* %call9218, i32 signext 1, %4** %err)
1846 %phitmp = icmp eq i8* %call10119, null
1847 br i1 %phitmp, label %if.then109, label %end
1849 if.then109: ; preds = %if.end106, %land.lhs.true80, %if.end74
1850 %url.129 = phi %5* [ %tmp20, %if.end106 ], [ %url.025, %if.end74 ], [ %url.025, %land.lhs.true80 ]
1851 %tmp110 = load %4** %err, align 8
1852 %tobool111 = icmp eq %4* %tmp110, null
1853 br i1 %tobool111, label %if.then112, label %if.end125
1855 if.then112: ; preds = %if.then109
1856 %tmp113 = load %struct._class_t** @"\01L_OBJC_CLASSLIST_REFERENCES_$_50", align 8
1857 %tmp114 = load %1** @NSCocoaErrorDomain, align 8
1858 %tmp115 = load %struct._class_t** @"\01L_OBJC_CLASSLIST_REFERENCES_$_51", align 8
1859 %call117 = call %1* @truncatedString(%1* %filename.0, i64 1034)
1860 %tmp118 = load %1** @NSFilePathErrorKey, align 8
1861 %tmp119 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_53", align 8
1862 %tmp120 = bitcast %struct._class_t* %tmp115 to i8*
1863 %call12113 = call i8* (i8*, i8*, ...)* @objc_msgSend(i8* %tmp120, i8* %tmp119, %1* %call117, %1* %tmp118, i8* null)
1864 %tmp122 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_55", align 8
1865 %tmp123 = bitcast %struct._class_t* %tmp113 to i8*
1866 %call12414 = call i8* (i8*, i8*, ...)* @objc_msgSend(i8* %tmp123, i8* %tmp122, %1* %tmp114, i64 258, i8* %call12113)
1867 %tmp23 = call i8* @objc_retain(i8* %call12414) nounwind
1868 %tmp25 = call i8* @objc_autorelease(i8* %tmp23) nounwind
1869 %tmp28 = bitcast i8* %tmp25 to %4*
1870 store %4* %tmp28, %4** %err, align 8
1873 if.end125: ; preds = %if.then112, %if.then109
1874 %tmp127 = phi %4* [ %tmp110, %if.then109 ], [ %tmp28, %if.then112 ]
1875 %tmp126 = load %struct._class_t** @"\01L_OBJC_CLASSLIST_REFERENCES_$_56", align 8
1876 %tmp128 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_58", align 8
1877 %tmp129 = bitcast %struct._class_t* %tmp126 to i8*
1878 %call13015 = call i8* (i8*, i8*, ...)* @objc_msgSend(i8* %tmp129, i8* %tmp128, %4* %tmp127)
1879 %tmp131 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_60", align 8
1880 %call13317 = call i8* (i8*, i8*, ...)* @objc_msgSend(i8* %call13015, i8* %tmp131)
1883 end: ; preds = %if.end125, %if.end106, %if.end, %land.lhs.true, %entry
1884 %filename.2 = phi %1* [ %filename.0, %if.end106 ], [ %filename.0, %if.end125 ], [ %tmp, %land.lhs.true ], [ null, %entry ], [ %tmp, %if.end ]
1885 %origFilename.0 = phi %1* [ %tmp, %if.end106 ], [ %tmp, %if.end125 ], [ %tmp, %land.lhs.true ], [ null, %entry ], [ %tmp, %if.end ]
1886 %url.2 = phi %5* [ %tmp20, %if.end106 ], [ %url.129, %if.end125 ], [ null, %land.lhs.true ], [ null, %entry ], [ %tmp13, %if.end ]
1887 call void @objc_release(i8* %tmp9) nounwind, !clang.imprecise_release !0
1888 %tmp29 = bitcast %5* %url.2 to i8*
1889 call void @objc_release(i8* %tmp29) nounwind, !clang.imprecise_release !0
1890 %tmp30 = bitcast %1* %origFilename.0 to i8*
1891 call void @objc_release(i8* %tmp30) nounwind, !clang.imprecise_release !0
1892 %tmp31 = bitcast %1* %filename.2 to i8*
1893 call void @objc_release(i8* %tmp31) nounwind, !clang.imprecise_release !0
1894 call void @objc_release(i8* %tmp7) nounwind, !clang.imprecise_release !0