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llvm-6502/test/Transforms/ObjCARC/ensure-that-exception-unwind-path-is-visited.ll
Duncan P. N. Exon Smith b056aa798d DebugInfo: Move new hierarchy into place 
Move the specialized metadata nodes for the new debug info hierarchy
into place, finishing off PR22464.  I've done bootstraps (and all that)
and I'm confident this commit is NFC as far as DWARF output is
concerned.  Let me know if I'm wrong :).

The code changes are fairly mechanical:

  - Bumped the "Debug Info Version".
  - `DIBuilder` now creates the appropriate subclass of `MDNode`.
  - Subclasses of DIDescriptor now expect to hold their "MD"
    counterparts (e.g., `DIBasicType` expects `MDBasicType`).
  - Deleted a ton of dead code in `AsmWriter.cpp` and `DebugInfo.cpp`
    for printing comments.
  - Big update to LangRef to describe the nodes in the new hierarchy.
    Feel free to make it better.

Testcase changes are enormous.  There's an accompanying clang commit on
its way.

If you have out-of-tree debug info testcases, I just broke your build.

  - `upgrade-specialized-nodes.sh` is attached to PR22564.  I used it to
    update all the IR testcases.
  - Unfortunately I failed to find way to script the updates to CHECK
    lines, so I updated all of these by hand.  This was fairly painful,
    since the old CHECKs are difficult to reason about.  That's one of
    the benefits of the new hierarchy.

This work isn't quite finished, BTW.  The `DIDescriptor` subclasses are
almost empty wrappers, but not quite: they still have loose casting
checks (see the `RETURN_FROM_RAW()` macro).  Once they're completely
gutted, I'll rename the "MD" classes to "DI" and kill the wrappers.  I
also expect to make a few schema changes now that it's easier to reason
about everything.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231082 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-03 17:24:31 +00:00

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; RUN: opt -objc-arc -S < %s | FileCheck %s
; rdar://11744105
; bugzilla://14584
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-S128"
target triple = "x86_64-apple-macosx10.9.0"
%0 = type opaque
%struct._class_t = type { %struct._class_t*, %struct._class_t*, %struct._objc_cache*, i8* (i8*, i8*)**, %struct._class_ro_t* }
%struct._objc_cache = type opaque
%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* }
%struct.__method_list_t = type { i32, i32, [0 x %struct._objc_method] }
%struct._objc_method = type { i8*, i8*, i8* }
%struct._objc_protocol_list = type { i64, [0 x %struct._protocol_t*] }
%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, i8** }
%struct._prop_list_t = type { i32, i32, [0 x %struct._prop_t] }
%struct._prop_t = type { i8*, i8* }
%struct._ivar_list_t = type { i32, i32, [0 x %struct._ivar_t] }
%struct._ivar_t = type { i64*, i8*, i8*, i32, i32 }
%struct.NSConstantString = type { i32*, i32, i8*, i64 }
@"OBJC_CLASS_$_NSObject" = external global %struct._class_t
@"\01L_OBJC_CLASSLIST_REFERENCES_$_" = internal global %struct._class_t* @"OBJC_CLASS_$_NSObject", section "__DATA, __objc_classrefs, regular, no_dead_strip", align 8
@"\01L_OBJC_METH_VAR_NAME_" = internal global [4 x i8] c"new\00", section "__TEXT,__objc_methname,cstring_literals", align 1
@"\01L_OBJC_SELECTOR_REFERENCES_" = internal global i8* getelementptr inbounds ([4 x i8]* @"\01L_OBJC_METH_VAR_NAME_", i64 0, i64 0), section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
@__CFConstantStringClassReference = external global [0 x i32]
@.str = private unnamed_addr constant [11 x i8] c"Failed: %@\00", align 1
@_unnamed_cfstring_ = private constant %struct.NSConstantString { i32* getelementptr inbounds ([0 x i32]* @__CFConstantStringClassReference, i32 0, i32 0), i32 1992, i8* getelementptr inbounds ([11 x i8]* @.str, i32 0, i32 0), i64 10 }, section "__DATA,__cfstring"
@"OBJC_CLASS_$_NSException" = external global %struct._class_t
@"\01L_OBJC_CLASSLIST_REFERENCES_$_1" = internal global %struct._class_t* @"OBJC_CLASS_$_NSException", section "__DATA, __objc_classrefs, regular, no_dead_strip", align 8
@.str2 = private unnamed_addr constant [4 x i8] c"Foo\00", align 1
@_unnamed_cfstring_3 = private constant %struct.NSConstantString { i32* getelementptr inbounds ([0 x i32]* @__CFConstantStringClassReference, i32 0, i32 0), i32 1992, i8* getelementptr inbounds ([4 x i8]* @.str2, i32 0, i32 0), i64 3 }, section "__DATA,__cfstring"
@"\01L_OBJC_METH_VAR_NAME_4" = internal global [14 x i8] c"raise:format:\00", section "__TEXT,__objc_methname,cstring_literals", align 1
@"\01L_OBJC_SELECTOR_REFERENCES_5" = internal global i8* getelementptr inbounds ([14 x i8]* @"\01L_OBJC_METH_VAR_NAME_4", i64 0, i64 0), section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
@llvm.used = appending global [6 x i8*] [i8* bitcast (%struct._class_t** @"\01L_OBJC_CLASSLIST_REFERENCES_$_" to i8*), i8* getelementptr inbounds ([4 x i8]* @"\01L_OBJC_METH_VAR_NAME_", i32 0, i32 0), i8* bitcast (i8** @"\01L_OBJC_SELECTOR_REFERENCES_" to i8*), i8* bitcast (%struct._class_t** @"\01L_OBJC_CLASSLIST_REFERENCES_$_1" to i8*), i8* getelementptr inbounds ([14 x i8]* @"\01L_OBJC_METH_VAR_NAME_4", i32 0, i32 0), i8* bitcast (i8** @"\01L_OBJC_SELECTOR_REFERENCES_5" to i8*)], section "llvm.metadata"
define i32 @main() uwtable ssp {
entry:
%tmp = load %struct._class_t*, %struct._class_t** @"\01L_OBJC_CLASSLIST_REFERENCES_$_", align 8, !dbg !37
%tmp1 = load i8*, i8** @"\01L_OBJC_SELECTOR_REFERENCES_", align 8, !dbg !37, !invariant.load !38
%tmp2 = bitcast %struct._class_t* %tmp to i8*, !dbg !37
; CHECK: call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8* (i8*, i8*)*)(i8* %tmp2, i8* %tmp1)
%call = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8* (i8*, i8*)*)(i8* %tmp2, i8* %tmp1), !dbg !37, !clang.arc.no_objc_arc_exceptions !38
call void @llvm.dbg.value(metadata i8* %call, i64 0, metadata i32 02, metadata !{}), !dbg !37
; CHECK: call i8* @objc_retain(i8* %call) [[NUW:#[0-9]+]]
%tmp3 = call i8* @objc_retain(i8* %call) nounwind, !dbg !39
call void @llvm.dbg.value(metadata i8* %call, i64 0, metadata !25, metadata !{}), !dbg !39
invoke fastcc void @ThrowFunc(i8* %call)
to label %eh.cont unwind label %lpad, !dbg !40, !clang.arc.no_objc_arc_exceptions !38
eh.cont: ; preds = %entry
; CHECK: call void @objc_release(i8* %call)
call void @objc_release(i8* %call) nounwind, !dbg !42, !clang.imprecise_release !38
br label %if.end, !dbg !43
lpad: ; preds = %entry
%tmp4 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__objc_personality_v0 to i8*)
catch i8* null, !dbg !40
%tmp5 = extractvalue { i8*, i32 } %tmp4, 0, !dbg !40
%exn.adjusted = call i8* @objc_begin_catch(i8* %tmp5) nounwind, !dbg !44
call void @llvm.dbg.value(metadata i8 0, i64 0, metadata !21, metadata !{}), !dbg !46
call void @objc_end_catch(), !dbg !49, !clang.arc.no_objc_arc_exceptions !38
; CHECK: call void @objc_release(i8* %call)
call void @objc_release(i8* %call) nounwind, !dbg !42, !clang.imprecise_release !38
call void (i8*, ...)* @NSLog(i8* bitcast (%struct.NSConstantString* @_unnamed_cfstring_ to i8*), i8* %call), !dbg !50, !clang.arc.no_objc_arc_exceptions !38
br label %if.end, !dbg !52
if.end: ; preds = %lpad, %eh.cont
call void (i8*, ...)* @NSLog(i8* bitcast (%struct.NSConstantString* @_unnamed_cfstring_ to i8*), i8* %call), !dbg !53, !clang.arc.no_objc_arc_exceptions !38
; CHECK: call void @objc_release(i8* %call)
call void @objc_release(i8* %call) nounwind, !dbg !54, !clang.imprecise_release !38
ret i32 0, !dbg !54
}
declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
declare i8* @objc_msgSend(i8*, i8*, ...) nonlazybind
declare i8* @objc_retain(i8*) nonlazybind
declare i8* @objc_begin_catch(i8*)
declare void @objc_end_catch()
declare void @objc_exception_rethrow()
define internal fastcc void @ThrowFunc(i8* %obj) uwtable noinline ssp {
entry:
%tmp = call i8* @objc_retain(i8* %obj) nounwind
call void @llvm.dbg.value(metadata i8* %obj, i64 0, metadata !32, metadata !{}), !dbg !55
%tmp1 = load %struct._class_t*, %struct._class_t** @"\01L_OBJC_CLASSLIST_REFERENCES_$_1", align 8, !dbg !56
%tmp2 = load i8*, i8** @"\01L_OBJC_SELECTOR_REFERENCES_5", align 8, !dbg !56, !invariant.load !38
%tmp3 = bitcast %struct._class_t* %tmp1 to i8*, !dbg !56
call void (i8*, i8*, %0*, %0*, ...)* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to void (i8*, i8*, %0*, %0*, ...)*)(i8* %tmp3, i8* %tmp2, %0* bitcast (%struct.NSConstantString* @_unnamed_cfstring_3 to %0*), %0* bitcast (%struct.NSConstantString* @_unnamed_cfstring_3 to %0*)), !dbg !56, !clang.arc.no_objc_arc_exceptions !38
call void @objc_release(i8* %obj) nounwind, !dbg !58, !clang.imprecise_release !38
ret void, !dbg !58
}
declare i32 @__objc_personality_v0(...)
declare void @objc_release(i8*) nonlazybind
declare void @NSLog(i8*, ...)
declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnone
; CHECK: attributes #0 = { ssp uwtable }
; CHECK: attributes #1 = { nounwind readnone }
; CHECK: attributes #2 = { nonlazybind }
; CHECK: attributes #3 = { noinline ssp uwtable }
; CHECK: attributes [[NUW]] = { nounwind }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!33, !34, !35, !36, !61}
!0 = !MDCompileUnit(language: DW_LANG_ObjC, producer: "clang version 3.3 ", isOptimized: true, runtimeVersion: 2, emissionKind: 0, file: !60, enums: !1, retainedTypes: !1, subprograms: !3, globals: !1)
!1 = !{i32 0}
!3 = !{!5, !27}
!5 = !MDSubprogram(name: "main", line: 9, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, scopeLine: 10, file: !60, scope: !6, type: !7, function: i32 ()* @main, variables: !10)
!6 = !MDFile(filename: "test.m", directory: "/Volumes/Files/gottesmmcab/Radar/12906997")
!7 = !MDSubroutineType(types: !8)
!8 = !{!9}
!9 = !MDBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
!10 = !{!11}
!11 = !{!12, !21, !25}
!12 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "obj", line: 11, scope: !13, file: !6, type: !14)
!13 = distinct !MDLexicalBlock(line: 10, column: 0, file: !60, scope: !5)
!14 = !MDDerivedType(tag: DW_TAG_typedef, name: "id", line: 11, file: !60, baseType: !15)
!15 = !MDDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, file: !60, baseType: !16)
!16 = !MDCompositeType(tag: DW_TAG_structure_type, name: "objc_object", file: !60, elements: !17)
!17 = !{!18}
!18 = !MDDerivedType(tag: DW_TAG_member, name: "isa", size: 64, file: !60, scope: !16, baseType: !19)
!19 = !MDDerivedType(tag: DW_TAG_pointer_type, size: 64, baseType: !20)
!20 = !MDCompositeType(tag: DW_TAG_structure_type, name: "objc_class", flags: DIFlagFwdDecl, file: !60)
!21 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "ok", line: 13, scope: !22, file: !6, type: !23)
!22 = distinct !MDLexicalBlock(line: 12, column: 0, file: !60, scope: !13)
!23 = !MDDerivedType(tag: DW_TAG_typedef, name: "BOOL", line: 62, file: !60, baseType: !24)
!24 = !MDBasicType(tag: DW_TAG_base_type, name: "signed char", size: 8, align: 8, encoding: DW_ATE_signed_char)
!25 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "obj2", line: 15, scope: !26, file: !6, type: !14)
!26 = distinct !MDLexicalBlock(line: 14, column: 0, file: !60, scope: !22)
!27 = !MDSubprogram(name: "ThrowFunc", line: 4, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 5, file: !60, scope: !6, type: !28, function: void (i8*)* @ThrowFunc, variables: !30)
!28 = !MDSubroutineType(types: !29)
!29 = !{null, !14}
!30 = !{!31}
!31 = !{!32}
!32 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "obj", line: 4, arg: 1, scope: !27, file: !6, type: !14)
!33 = !{i32 1, !"Objective-C Version", i32 2}
!34 = !{i32 1, !"Objective-C Image Info Version", i32 0}
!35 = !{i32 1, !"Objective-C Image Info Section", !"__DATA, __objc_imageinfo, regular, no_dead_strip"}
!36 = !{i32 4, !"Objective-C Garbage Collection", i32 0}
!37 = !MDLocation(line: 11, scope: !13)
!38 = !{}
!39 = !MDLocation(line: 15, scope: !26)
!40 = !MDLocation(line: 17, scope: !41)
!41 = distinct !MDLexicalBlock(line: 16, column: 0, file: !60, scope: !26)
!42 = !MDLocation(line: 22, scope: !26)
!43 = !MDLocation(line: 23, scope: !22)
!44 = !MDLocation(line: 19, scope: !41)
!45 = !{i8 0}
!46 = !MDLocation(line: 20, scope: !47)
!47 = distinct !MDLexicalBlock(line: 19, column: 0, file: !60, scope: !48)
!48 = distinct !MDLexicalBlock(line: 19, column: 0, file: !60, scope: !26)
!49 = !MDLocation(line: 21, scope: !47)
!50 = !MDLocation(line: 24, scope: !51)
!51 = distinct !MDLexicalBlock(line: 23, column: 0, file: !60, scope: !22)
!52 = !MDLocation(line: 25, scope: !51)
!53 = !MDLocation(line: 27, scope: !13)
!54 = !MDLocation(line: 28, scope: !13)
!55 = !MDLocation(line: 4, scope: !27)
!56 = !MDLocation(line: 6, scope: !57)
!57 = distinct !MDLexicalBlock(line: 5, column: 0, file: !60, scope: !27)
!58 = !MDLocation(line: 7, scope: !57)
!60 = !MDFile(filename: "test.m", directory: "/Volumes/Files/gottesmmcab/Radar/12906997")
!61 = !{i32 1, !"Debug Info Version", i32 3}
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