40 lines
1.6 KiB
LLVM
40 lines
1.6 KiB
LLVM
; RUN: opt -objc-arc -S < %s | FileCheck %s
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declare void @alterRefCount()
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declare void @use(i8*)
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; Check that ARC optimizer doesn't reverse the order of the retain call and the
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; release call when there are debug instructions.
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; CHECK: call i8* @llvm.objc.retain(i8* %x)
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; CHECK: call void @llvm.objc.release(i8* %x)
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define i32 @test(i8* %x, i8* %y, i8 %z, i32 %i) {
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%i.addr = alloca i32, align 4
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store i32 %i, i32* %i.addr, align 4
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%v1 = tail call i8* @llvm.objc.retain(i8* %x)
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store i8 %z, i8* %x
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call void @llvm.dbg.declare(metadata i32* %i.addr, metadata !9, metadata !DIExpression()), !dbg !10
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call void @alterRefCount()
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tail call void @llvm.objc.release(i8* %x)
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ret i32 %i
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}
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declare void @llvm.dbg.declare(metadata, metadata, metadata)
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declare i8* @llvm.objc.retain(i8*) local_unnamed_addr
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declare void @llvm.objc.release(i8*) local_unnamed_addr
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!llvm.module.flags = !{!0, !1}
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!0 = !{i32 2, !"Dwarf Version", i32 4}
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!1 = !{i32 2, !"Debug Info Version", i32 3}
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!2 = !DILocalVariable(name: "i", arg: 1, scope: !3, file: !4, line: 1, type: !7)
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!3 = distinct !DISubprogram(name: "test", scope: !4, file: !4, line: 1, type: !5, scopeLine: 1, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !8, retainedNodes: !9)
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!4 = !DIFile(filename: "test.m", directory: "dir")
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!5 = !DISubroutineType(types: !6)
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!6 = !{!7, !7}
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!7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!8 = distinct !DICompileUnit(language: DW_LANG_ObjC, file: !4, isOptimized: false, runtimeVersion: 2, emissionKind: FullDebug, enums: !9, nameTableKind: None)
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!9 = !{}
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!10 = !DILocation(line: 1, column: 14, scope: !3)
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