derek.holloway
7502bf64a4
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79 lines
2.7 KiB
LLVM
79 lines
2.7 KiB
LLVM
; RUN: opt -passes=objc-arc-contract -S < %s | FileCheck %s
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; CHECK-LABEL: define void @test0() {
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; CHECK: %[[CALL:.*]] = notail call ptr @foo() [ "clang.arc.attachedcall"(ptr @llvm.objc.retainAutoreleasedReturnValue) ]
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; CHECK-NOT: call ptr @llvm.objc.retainAutoreleasedReturnValue(
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define void @test0() {
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%call1 = call ptr @foo() [ "clang.arc.attachedcall"(ptr @llvm.objc.retainAutoreleasedReturnValue) ]
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ret void
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}
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; CHECK-LABEL: define void @test1() {
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; CHECK: %[[CALL:.*]] = notail call ptr @foo() [ "clang.arc.attachedcall"(ptr @llvm.objc.unsafeClaimAutoreleasedReturnValue) ]
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; CHECK-NOT: call ptr @llvm.objc.unsafeClaimAutoreleasedReturnValue(
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define void @test1() {
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%call1 = call ptr @foo() [ "clang.arc.attachedcall"(ptr @llvm.objc.unsafeClaimAutoreleasedReturnValue) ]
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ret void
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}
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; CHECK-LABEL:define ptr @test2(
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; CHECK: %[[V0:.*]] = invoke ptr @foo() [ "clang.arc.attachedcall"(ptr @llvm.objc.retainAutoreleasedReturnValue) ]
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; CHECK-NOT: = call ptr @llvm.objc.retainAutoreleasedReturnValue(
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; CHECK: br
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; CHECK: %[[V2:.*]] = invoke ptr @foo() [ "clang.arc.attachedcall"(ptr @llvm.objc.retainAutoreleasedReturnValue) ]
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; CHECK-NOT: = call ptr @llvm.objc.retainAutoreleasedReturnValue(
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; CHECK: br
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; CHECK: %[[RETVAL:.*]] = phi ptr [ %[[V0]], {{.*}} ], [ %[[V2]], {{.*}} ]
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; CHECK: ret ptr %[[RETVAL]]
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define ptr @test2(i1 zeroext %b) personality ptr @__gxx_personality_v0 {
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entry:
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br i1 %b, label %if.then, label %if.end
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if.then:
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%call1 = invoke ptr @foo() [ "clang.arc.attachedcall"(ptr @llvm.objc.retainAutoreleasedReturnValue) ]
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to label %cleanup unwind label %lpad
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lpad:
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%0 = landingpad { ptr, i32 }
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cleanup
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resume { ptr, i32 } undef
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if.end:
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%call3 = invoke ptr @foo() [ "clang.arc.attachedcall"(ptr @llvm.objc.retainAutoreleasedReturnValue) ]
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to label %cleanup unwind label %lpad
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cleanup:
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%retval.0 = phi ptr [ %call1, %if.then ], [ %call3, %if.end ]
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ret ptr %retval.0
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}
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; "clang.arc.attachedcall" is ignored if the return type of the called function is void.
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; CHECK-LABEL: define void @test3(
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; CHECK: call void @foo2() #[[ATTR1:.*]] [ "clang.arc.attachedcall"(ptr @llvm.objc.retainAutoreleasedReturnValue) ]
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; CHECK-NEXT: ret void
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define void @test3() {
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call void @foo2() #0 [ "clang.arc.attachedcall"(ptr @llvm.objc.retainAutoreleasedReturnValue) ]
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ret void
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}
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declare ptr @foo()
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declare void @foo2()
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declare i32 @__gxx_personality_v0(...)
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declare ptr @llvm.objc.retainAutoreleasedReturnValue(ptr)
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declare ptr @llvm.objc.unsafeClaimAutoreleasedReturnValue(ptr)
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!llvm.module.flags = !{!0}
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; CHECK: attributes #[[ATTR1]] = { noreturn }
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attributes #0 = { noreturn }
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!0 = !{i32 1, !"clang.arc.retainAutoreleasedReturnValueMarker", !"mov\09fp, fp\09\09// marker for objc_retainAutoreleaseReturnValue"}
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