91 lines
4.9 KiB
LLVM
91 lines
4.9 KiB
LLVM
; RUN: opt -S -objc-arc < %s | FileCheck %s
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; rdar://10209613
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%0 = type opaque
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%struct.__block_descriptor = type { i64, i64 }
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@_NSConcreteStackBlock = external global i8*
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@__block_descriptor_tmp = external hidden constant { i64, i64, i8*, i8*, i8*, i8* }
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@"\01L_OBJC_SELECTOR_REFERENCES_" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
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; CHECK: define void @test(
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; CHECK: %3 = call i8* @objc_retainBlock(i8* %2) nounwind
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; CHECK: @objc_msgSend
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; CHECK-NEXT: @objc_release(i8* %3)
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define void @test(%0* %array) uwtable {
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entry:
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%block = alloca <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>, align 8
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%0 = bitcast %0* %array to i8*
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%1 = tail call i8* @objc_retain(i8* %0) nounwind
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%block.isa = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>* %block, i64 0, i32 0
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store i8* bitcast (i8** @_NSConcreteStackBlock to i8*), i8** %block.isa, align 8
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%block.flags = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>* %block, i64 0, i32 1
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store i32 1107296256, i32* %block.flags, align 8
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%block.reserved = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>* %block, i64 0, i32 2
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store i32 0, i32* %block.reserved, align 4
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%block.invoke = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>* %block, i64 0, i32 3
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store i8* bitcast (void (i8*)* @__test_block_invoke_0 to i8*), i8** %block.invoke, align 8
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%block.descriptor = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>* %block, i64 0, i32 4
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store %struct.__block_descriptor* bitcast ({ i64, i64, i8*, i8*, i8*, i8* }* @__block_descriptor_tmp to %struct.__block_descriptor*), %struct.__block_descriptor** %block.descriptor, align 8
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%block.captured = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>* %block, i64 0, i32 5
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store %0* %array, %0** %block.captured, align 8
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%2 = bitcast <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>* %block to i8*
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%3 = call i8* @objc_retainBlock(i8* %2) nounwind
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%tmp2 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_", align 8
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call void bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to void (i8*, i8*, i8*)*)(i8* %0, i8* %tmp2, i8* %3)
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call void @objc_release(i8* %3) nounwind
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%strongdestroy = load %0** %block.captured, align 8
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%4 = bitcast %0* %strongdestroy to i8*
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call void @objc_release(i8* %4) nounwind, !clang.imprecise_release !0
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ret void
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}
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; Same as test, but the objc_retainBlock has a clang.arc.copy_on_escape
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; tag so it's safe to delete.
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; CHECK: define void @test_with_COE(
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; CHECK-NOT: @objc_retainBlock
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; CHECK: @objc_msgSend
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; CHECK: @objc_release
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; CHECK-NOT: @objc_release
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; CHECK: }
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define void @test_with_COE(%0* %array) uwtable {
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entry:
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%block = alloca <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>, align 8
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%0 = bitcast %0* %array to i8*
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%1 = tail call i8* @objc_retain(i8* %0) nounwind
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%block.isa = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>* %block, i64 0, i32 0
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store i8* bitcast (i8** @_NSConcreteStackBlock to i8*), i8** %block.isa, align 8
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%block.flags = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>* %block, i64 0, i32 1
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store i32 1107296256, i32* %block.flags, align 8
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%block.reserved = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>* %block, i64 0, i32 2
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store i32 0, i32* %block.reserved, align 4
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%block.invoke = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>* %block, i64 0, i32 3
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store i8* bitcast (void (i8*)* @__test_block_invoke_0 to i8*), i8** %block.invoke, align 8
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%block.descriptor = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>* %block, i64 0, i32 4
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store %struct.__block_descriptor* bitcast ({ i64, i64, i8*, i8*, i8*, i8* }* @__block_descriptor_tmp to %struct.__block_descriptor*), %struct.__block_descriptor** %block.descriptor, align 8
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%block.captured = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>* %block, i64 0, i32 5
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store %0* %array, %0** %block.captured, align 8
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%2 = bitcast <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>* %block to i8*
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%3 = call i8* @objc_retainBlock(i8* %2) nounwind, !clang.arc.copy_on_escape !0
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%tmp2 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_", align 8
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call void bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to void (i8*, i8*, i8*)*)(i8* %0, i8* %tmp2, i8* %3)
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call void @objc_release(i8* %3) nounwind
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%strongdestroy = load %0** %block.captured, align 8
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%4 = bitcast %0* %strongdestroy to i8*
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call void @objc_release(i8* %4) nounwind, !clang.imprecise_release !0
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ret void
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}
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declare i8* @objc_retain(i8*)
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declare void @__test_block_invoke_0(i8* nocapture) uwtable
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declare i8* @objc_retainBlock(i8*)
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declare i8* @objc_msgSend(i8*, i8*, ...) nonlazybind
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declare void @objc_release(i8*)
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!0 = metadata !{}
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