[llvm] r192011 - Debug info: Don't crash in SelectionDAGISel when a vreg that is being

Eric Christopher echristo at gmail.com
Fri Oct 4 17:33:10 PDT 2013


So the reason why Dave and I are asking is this:

0x00000159:       DW_TAG_subprogram [16] *
                    DW_AT_MIPS_linkage_name [DW_FORM_strp]      (
.debug_str[0x00000088] = "_Z7Ellipse9GetMatrixEv")
                    DW_AT_name [DW_FORM_strp]   (
.debug_str[0x0000009f] = "GetMatrix")
                    DW_AT_decl_file [DW_FORM_data1]     (0x02)
                    DW_AT_decl_line [DW_FORM_data2]     (0x0135)
                    DW_AT_type [DW_FORM_ref4]   (cu + 0x00b0 => {0x000000b0})
                    DW_AT_declaration [DW_FORM_flag_present]    (true)
                    DW_AT_external [DW_FORM_flag_present]       (true)
                    DW_AT_APPLE_isa [DW_FORM_flag]      (0x01)
                    DW_AT_accessibility [DW_FORM_data1] (0x03)

0x0000016b:         DW_TAG_formal_parameter [9]
                      DW_AT_type [DW_FORM_ref4] (cu + 0x02aa => {0x000002aa})
                      DW_AT_artificial [DW_FORM_flag_present]   (true)

0x00000170:         NULL

0x00000171:       NULL

You'll notice that the only parameter you have listed for GetMatrix is
the implicit this parameter, none of the arguments. This would seem to
be a less than sufficient solution to your problem.

-eric


On Fri, Oct 4, 2013 at 5:22 PM, David Blaikie <dblaikie at gmail.com> wrote:
>
>
>
> On Fri, Oct 4, 2013 at 5:19 PM, Adrian Prantl <aprantl at apple.com> wrote:
>>
>> This is a bugpoint-reduced example. So it’s slightly nonsensical.
>
>
> It'd be nice to have the original source simplified so we didn't have quite
> so much debug info metadata (and so we could regenerate it if/when we change
> the debug info schema or want to add related cases to the test).
>
>>
>> -- adrian
>>
>> Am 04.10.2013 um 17:18 schrieb Adrian Prantl <aprantl at apple.com>:
>>
>> > Hi Eric,
>> >
>> > In SelectionDAG, %agg.result is CopyToReg’d into %vreg0, but the only
>> > instruction that would actually materialize this vreg is the getelementptr
>> > which isn’t emitted because it is dead.
>> > When SelectionDAGISel::runOnMachineFunction() tries to re-add all the
>> > DBG_VALUES for the function arguments it attempts to lookup the def of
>> > vreg0, but it isn’t there and we get a nullptr deref.
>> >
>> > -- adrian
>> >
>> > Am 04.10.2013 um 17:15 schrieb Eric Christopher <echristo at gmail.com>:
>> >
>> >> Which function argument is being eliminated here?
>> >>
>> >> -eric
>> >>
>> >> On Fri, Oct 4, 2013 at 5:08 PM, Adrian Prantl <aprantl at apple.com>
>> >> wrote:
>> >>> Author: adrian
>> >>> Date: Fri Oct  4 19:08:27 2013
>> >>> New Revision: 192011
>> >>>
>> >>> URL: http://llvm.org/viewvc/llvm-project?rev=192011&view=rev
>> >>> Log:
>> >>> Debug info: Don't crash in SelectionDAGISel when a vreg that is being
>> >>> pointed to by a dbg_value belonging to a function argument is
>> >>> eliminated
>> >>> during instruction selection.
>> >>> rdar://problem/15094721.
>> >>>
>> >>> Added:
>> >>>   llvm/trunk/test/DebugInfo/ARM/selectiondag-deadcode.ll
>> >>> Modified:
>> >>>   llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
>> >>>
>> >>> Modified: llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
>> >>> URL:
>> >>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp?rev=192011&r1=192010&r2=192011&view=diff
>> >>>
>> >>> ==============================================================================
>> >>> --- llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
>> >>> (original)
>> >>> +++ llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp Fri Oct
>> >>> 4 19:08:27 2013
>> >>> @@ -408,9 +408,13 @@ bool SelectionDAGISel::runOnMachineFunct
>> >>>      EntryMBB->insert(EntryMBB->begin(), MI);
>> >>>    else {
>> >>>      MachineInstr *Def = RegInfo->getVRegDef(Reg);
>> >>> -      MachineBasicBlock::iterator InsertPos = Def;
>> >>> -      // FIXME: VR def may not be in entry block.
>> >>> -      Def->getParent()->insert(llvm::next(InsertPos), MI);
>> >>> +      if (Def) {
>> >>> +        MachineBasicBlock::iterator InsertPos = Def;
>> >>> +        // FIXME: VR def may not be in entry block.
>> >>> +        Def->getParent()->insert(llvm::next(InsertPos), MI);
>> >>> +      } else
>> >>> +        DEBUG(dbgs() << "Dropping debug info for dead vreg"
>> >>> +              << TargetRegisterInfo::virtReg2Index(Reg) << "\n");
>> >>>    }
>> >>>
>> >>>    // If Reg is live-in then update debug info to track its copy in a
>> >>> vreg.
>> >>>
>> >>> Added: llvm/trunk/test/DebugInfo/ARM/selectiondag-deadcode.ll
>> >>> URL:
>> >>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/ARM/selectiondag-deadcode.ll?rev=192011&view=auto
>> >>>
>> >>> ==============================================================================
>> >>> --- llvm/trunk/test/DebugInfo/ARM/selectiondag-deadcode.ll (added)
>> >>> +++ llvm/trunk/test/DebugInfo/ARM/selectiondag-deadcode.ll Fri Oct  4
>> >>> 19:08:27 2013
>> >>> @@ -0,0 +1,135 @@
>> >>> +; RUN: llc -filetype=asm < %s | FileCheck %s
>> >>> +target triple = "thumbv7-apple-ios7.0.0"
>> >>> +%"matrix" = type { [9 x float] }
>> >>> +%"ellipse" = type { %"plane" }
>> >>> +%"plane" = type { %"vector" }
>> >>> +%"vector" = type { %union.anon.2.26.2 }
>> >>> +%union.anon.2.26.2 = type { %struct.anon.1.25.1 }
>> >>> +%struct.anon.1.25.1 = type { float, float, float }
>> >>> +
>> >>> +define void @_Z7Ellipse9GetMatrixEv(%"matrix"* noalias nocapture sret
>> >>> %agg.result, %"ellipse"* nocapture readonly %this) #0 align 2 {
>> >>> +  br i1 undef, label %_Z7Vector39NormalizeEv.exit, label %1
>> >>> +  %2 = call double @_Z7StdMath4SqrtEd(double undef) #4
>> >>> +  br label %_Z7Vector39NormalizeEv.exit
>> >>> +_Z7Vector39NormalizeEv.exit:                 ; preds = %1, %0
>> >>> +  call void @llvm.dbg.declare(metadata !{%"matrix"* %agg.result},
>> >>> metadata !74)
>> >>> +  ; rdar://problem/15094721.  When this dead use gets eliminated (and
>> >>> +  ; thus the def of the vreg holding %agg.result) the dbg_value
>> >>> becomes
>> >>> +  ; dangling and SelectionDAGISel crashes.
>> >>> +  ; It should definitely not crash. Drop the dbg_value instead.
>> >>> +  ; CHECK: "matrix"
>> >>> +  %3 = getelementptr inbounds %"matrix"* %agg.result, i32 0, i32 0,
>> >>> i32 8
>> >>> +  ret void
>> >>> +}
>> >>> +
>> >>> +declare void @llvm.dbg.declare(metadata, metadata) #1
>> >>> +
>> >>> +declare double @_Z7StdMath4SqrtEd(double) #3
>> >>> +
>> >>> +!llvm.dbg.cu = !{!0}
>> >>> +!0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang
>> >>> version 3.4 ", i1 true, metadata !"", i32 0, metadata !2, metadata !3,
>> >>> metadata !67, metadata !2, metadata !104, metadata !""} ; [
>> >>> DW_TAG_compile_unit ] [/Volumes/Data/radar/15094721/Ellipse.cpp]
>> >>> [DW_LANG_C_plus_plus]
>> >>> +!1 = metadata !{metadata !"Ellipse.cpp", metadata
>> >>> !"/Volumes/Data/radar/15094721"}
>> >>> +!2 = metadata !{i32 0}
>> >>> +!3 = metadata !{metadata !4, metadata !9, metadata !12, metadata !15,
>> >>> metadata !18, metadata !33, metadata !58}
>> >>> +!4 = metadata !{i32 786434, metadata !5, metadata !6, metadata
>> >>> !"Ellipse", i32 307, i64 96, i64 32, i32 0, i32 0, null, metadata !7, i32 0,
>> >>> null, null, metadata !"_ZTS7EllipseE"} ; [ DW_TAG_class_type ] [Ellipse]
>> >>> [line 307, size 96, align 32, offset 0] [def] [from ]
>> >>> +!5 = metadata !{metadata !"test.ii", metadata
>> >>> !"/Volumes/Data/radar/15094721"}
>> >>> +!6 = metadata !{i32 786489, metadata !5, null, metadata !"Namespace",
>> >>> i32 158} ; [ DW_TAG_namespace ] [Namespace] [line 158]
>> >>> +!7 = metadata !{metadata !8, metadata !30}
>> >>> +!8 = metadata !{i32 786460, null, metadata !"_ZTS7EllipseE", null,
>> >>> i32 0, i64 0, i64 0, i64 0, i32 0, metadata !9} ; [ DW_TAG_inheritance ]
>> >>> [line 0, size 0, align 0, offset 0] [from Plane]
>> >>> +!9 = metadata !{i32 786434, metadata !5, metadata !6, metadata
>> >>> !"Plane", i32 302, i64 96, i64 32, i32 0, i32 0, null, metadata !10, i32 0,
>> >>> null, null, metadata !"_ZTS5PlaneE"} ; [ DW_TAG_class_type ] [Plane] [line
>> >>> 302, size 96, align 32, offset 0] [def] [from ]
>> >>> +!10 = metadata !{metadata !11}
>> >>> +!11 = metadata !{i32 786445, metadata !5, metadata !"_ZTS5PlaneE",
>> >>> metadata !"normal", i32 305, i64 96, i64 32, i64 0, i32 0, metadata !12} ; [
>> >>> DW_TAG_member ] [normal] [line 305, size 96, align 32, offset 0] [from
>> >>> Vector3]
>> >>> +!12 = metadata !{i32 786434, metadata !5, metadata !6, metadata
>> >>> !"Vector3", i32 182, i64 96, i64 32, i32 0, i32 0, null, metadata !13, i32
>> >>> 0, null, null, metadata !"_ZTS7Vector3E"} ; [ DW_TAG_class_type ] [Vector3]
>> >>> [line 182, size 96, align 32, offset 0] [def] [from ]
>> >>> +!13 = metadata !{metadata !14, metadata !24}
>> >>> +!14 = metadata !{i32 786445, metadata !5, metadata !"_ZTS7Vector3E",
>> >>> metadata !"", i32 185, i64 96, i64 32, i64 0, i32 0, metadata !15} ; [
>> >>> DW_TAG_member ] [line 185, size 96, align 32, offset 0] [from ]
>> >>> +!15 = metadata !{i32 786455, metadata !5, metadata !12, metadata !"",
>> >>> i32 185, i64 96, i64 32, i64 0, i32 0, null, metadata !16, i32 0, null,
>> >>> null, metadata !"_ZTS7Vector3Ut_E"} ; [ DW_TAG_union_type ] [line 185, size
>> >>> 96, align 32, offset 0] [def] [from ]
>> >>> +!16 = metadata !{metadata !17}
>> >>> +!17 = metadata !{i32 786445, metadata !5, metadata
>> >>> !"_ZTS7Vector3Ut_E", metadata !"", i32 187, i64 96, i64 32, i64 0, i32 0,
>> >>> metadata !18} ; [ DW_TAG_member ] [line 187, size 96, align 32, offset 0]
>> >>> [from ]
>> >>> +!18 = metadata !{i32 786451, metadata !5, metadata !15, metadata !"",
>> >>> i32 187, i64 96, i64 32, i32 0, i32 0, null, metadata !19, i32 0, null,
>> >>> null, metadata !"_ZTS7Vector3Ut_Ut_E"} ; [ DW_TAG_structure_type ] [line
>> >>> 187, size 96, align 32, offset 0] [def] [from ]
>> >>> +!19 = metadata !{metadata !20, metadata !22, metadata !23}
>> >>> +!20 = metadata !{i32 786445, metadata !5, metadata
>> >>> !"_ZTS7Vector3Ut_Ut_E", metadata !"x", i32 189, i64 32, i64 32, i64 0, i32
>> >>> 0, metadata !21} ; [ DW_TAG_member ] [x] [line 189, size 32, align 32,
>> >>> offset 0] [from float]
>> >>> +!21 = metadata !{i32 786468, null, null, metadata !"float", i32 0,
>> >>> i64 32, i64 32, i64 0, i32 0, i32 4} ; [ DW_TAG_base_type ] [float] [line 0,
>> >>> size 32, align 32, offset 0, enc DW_ATE_float]
>> >>> +!22 = metadata !{i32 786445, metadata !5, metadata
>> >>> !"_ZTS7Vector3Ut_Ut_E", metadata !"y", i32 190, i64 32, i64 32, i64 32, i32
>> >>> 0, metadata !21} ; [ DW_TAG_member ] [y] [line 190, size 32, align 32,
>> >>> offset 32] [from float]
>> >>> +!23 = metadata !{i32 786445, metadata !5, metadata
>> >>> !"_ZTS7Vector3Ut_Ut_E", metadata !"z", i32 191, i64 32, i64 32, i64 64, i32
>> >>> 0, metadata !21} ; [ DW_TAG_member ] [z] [line 191, size 32, align 32,
>> >>> offset 64] [from float]
>> >>> +!24 = metadata !{i32 786478, metadata !5, metadata !12, metadata
>> >>> !"Normalize", metadata !"Normalize", metadata !"_Z7Vector39NormalizeEv", i32
>> >>> 194, metadata !25, i1 false, i1 false, i32 0, i32 0, null, i32 256, i1 true,
>> >>> null, null, i32 0, metadata !29, i32 194} ; [ DW_TAG_subprogram ] [line 194]
>> >>> [Normalize]
>> >>> +!25 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0,
>> >>> i64 0, i64 0, i32 0, null, metadata !26, i32 0, null, null, null} ; [
>> >>> DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
>> >>> +!26 = metadata !{metadata !27, metadata !28}
>> >>> +!27 = metadata !{i32 786448, null, null, null, i32 0, i64 0, i64 0,
>> >>> i64 0, i32 0, metadata !12} ; [ DW_TAG_reference_type ] [line 0, size 0,
>> >>> align 0, offset 0] [from Vector3]
>> >>> +!28 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 32,
>> >>> i64 32, i64 0, i32 1088, metadata !"_ZTS7Vector3E"} ; [ DW_TAG_pointer_type
>> >>> ] [line 0, size 32, align 32, offset 0] [artificial] [from _ZTS7Vector3E]
>> >>> +!29 = metadata !{i32 786468}
>> >>> +!30 = metadata !{i32 786478, metadata !5, metadata !4, metadata
>> >>> !"GetMatrix", metadata !"GetMatrix", metadata !"_Z7Ellipse9GetMatrixEv", i32
>> >>> 309, metadata !31, i1 false, i1 false, i32 0, i32 0, null, i32 257, i1 true,
>> >>> null, null, i32 0, metadata !29, i32 309} ; [ DW_TAG_subprogram ] [line 309]
>> >>> [private] [GetMatrix]
>> >>> +!31 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0,
>> >>> i64 0, i64 0, i32 0, null, metadata !32, i32 0, null, null, null} ; [
>> >>> DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
>> >>> +!32 = metadata !{metadata !33, metadata !57}
>> >>> +!33 = metadata !{i32 786434, metadata !5, metadata !6, metadata
>> >>> !"Matrix3", i32 202, i64 288, i64 32, i32 0, i32 0, null, metadata !34, i32
>> >>> 0, null, null, metadata !"_ZTS7Matrix3E"} ; [ DW_TAG_class_type ] [Matrix3]
>> >>> [line 202, size 288, align 32, offset 0] [def] [from ]
>> >>> +!34 = metadata !{metadata !35, metadata !39, metadata !43, metadata
>> >>> !46, metadata !51}
>> >>> +!35 = metadata !{i32 786445, metadata !5, metadata !"_ZTS7Matrix3E",
>> >>> metadata !"data", i32 211, i64 288, i64 32, i64 0, i32 0, metadata !36} ; [
>> >>> DW_TAG_member ] [data] [line 211, size 288, align 32, offset 0] [from ]
>> >>> +!36 = metadata !{i32 786433, null, null, metadata !"", i32 0, i64
>> >>> 288, i64 32, i32 0, i32 0, metadata !21, metadata !37, i32 0, null, null,
>> >>> null} ; [ DW_TAG_array_type ] [line 0, size 288, align 32, offset 0] [from
>> >>> float]
>> >>> +!37 = metadata !{metadata !38}
>> >>> +!38 = metadata !{i32 786465, i64 0, i64 9}        ; [
>> >>> DW_TAG_subrange_type ] [0, 8]
>> >>> +!39 = metadata !{i32 786478, metadata !5, metadata !33, metadata
>> >>> !"Matrix3", metadata !"Matrix3", metadata !"", i32 205, metadata !40, i1
>> >>> false, i1 false, i32 0, i32 0, null, i32 256, i1 true, null, null, i32 0,
>> >>> metadata !29, i32 205} ; [ DW_TAG_subprogram ] [line 205] [Matrix3]
>> >>> +!40 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0,
>> >>> i64 0, i64 0, i32 0, null, metadata !41, i32 0, null, null, null} ; [
>> >>> DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
>> >>> +!41 = metadata !{null, metadata !42}
>> >>> +!42 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 32,
>> >>> i64 32, i64 0, i32 1088, metadata !"_ZTS7Matrix3E"} ; [ DW_TAG_pointer_type
>> >>> ] [line 0, size 32, align 32, offset 0] [artificial] [from _ZTS7Matrix3E]
>> >>> +!43 = metadata !{i32 786478, metadata !5, metadata !33, metadata
>> >>> !"Matrix3", metadata !"Matrix3", metadata !"", i32 206, metadata !44, i1
>> >>> false, i1 false, i32 0, i32 0, null, i32 256, i1 true, null, null, i32 0,
>> >>> metadata !29, i32 206} ; [ DW_TAG_subprogram ] [line 206] [Matrix3]
>> >>> +!44 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0,
>> >>> i64 0, i64 0, i32 0, null, metadata !45, i32 0, null, null, null} ; [
>> >>> DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
>> >>> +!45 = metadata !{null, metadata !42, metadata !21, metadata !21,
>> >>> metadata !21, metadata !21, metadata !21, metadata !21, metadata !21,
>> >>> metadata !21, metadata !21}
>> >>> +!46 = metadata !{i32 786478, metadata !5, metadata !33, metadata
>> >>> !"Multiply", metadata !"Multiply", metadata !"_Z7Matrix38MultiplyEPKf", i32
>> >>> 209, metadata !47, i1 false, i1 false, i32 0, i32 0, null, i32 256, i1 true,
>> >>> null, null, i32 0, metadata !29, i32 209} ; [ DW_TAG_subprogram ] [line 209]
>> >>> [Multiply]
>> >>> +!47 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0,
>> >>> i64 0, i64 0, i32 0, null, metadata !48, i32 0, null, null, null} ; [
>> >>> DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
>> >>> +!48 = metadata !{null, metadata !42, metadata !49}
>> >>> +!49 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 32,
>> >>> i64 32, i64 0, i32 0, metadata !50} ; [ DW_TAG_pointer_type ] [line 0, size
>> >>> 32, align 32, offset 0] [from ]
>> >>> +!50 = metadata !{i32 786470, null, null, metadata !"", i32 0, i64 0,
>> >>> i64 0, i64 0, i32 0, metadata !21} ; [ DW_TAG_const_type ] [line 0, size 0,
>> >>> align 0, offset 0] [from float]
>> >>> +!51 = metadata !{i32 786478, metadata !5, metadata !33, metadata
>> >>> !"operator*=", metadata !"operator*=", metadata !"_Z7Matrix3mLERKS0_", i32
>> >>> 210, metadata !52, i1 false, i1 false, i32 0, i32 0, null, i32 256, i1 true,
>> >>> null, null, i32 0, metadata !29, i32 210} ; [ DW_TAG_subprogram ] [line 210]
>> >>> [operator*=]
>> >>> +!52 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0,
>> >>> i64 0, i64 0, i32 0, null, metadata !53, i32 0, null, null, null} ; [
>> >>> DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
>> >>> +!53 = metadata !{metadata !54, metadata !42, metadata !55}
>> >>> +!54 = metadata !{i32 786448, null, null, null, i32 0, i64 0, i64 0,
>> >>> i64 0, i32 0, metadata !33} ; [ DW_TAG_reference_type ] [line 0, size 0,
>> >>> align 0, offset 0] [from Matrix3]
>> >>> +!55 = metadata !{i32 786448, null, null, null, i32 0, i64 0, i64 0,
>> >>> i64 0, i32 0, metadata !56} ; [ DW_TAG_reference_type ] [line 0, size 0,
>> >>> align 0, offset 0] [from ]
>> >>> +!56 = metadata !{i32 786470, null, null, metadata !"", i32 0, i64 0,
>> >>> i64 0, i64 0, i32 0, metadata !33} ; [ DW_TAG_const_type ] [line 0, size 0,
>> >>> align 0, offset 0] [from Matrix3]
>> >>> +!57 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 32,
>> >>> i64 32, i64 0, i32 1088, metadata !"_ZTS7EllipseE"} ; [ DW_TAG_pointer_type
>> >>> ] [line 0, size 32, align 32, offset 0] [artificial] [from _ZTS7EllipseE]
>> >>> +!58 = metadata !{i32 786434, metadata !5, metadata !6, metadata
>> >>> !"StdMath", i32 159, i64 8, i64 8, i32 0, i32 0, null, metadata !59, i32 0,
>> >>> null, null, metadata !"_ZTS7StdMathE"} ; [ DW_TAG_class_type ] [StdMath]
>> >>> [line 159, size 8, align 8, offset 0] [def] [from ]
>> >>> +!59 = metadata !{metadata !60, metadata !63}
>> >>> +!60 = metadata !{i32 786478, metadata !5, metadata !58, metadata
>> >>> !"InvSqrt", metadata !"InvSqrt", metadata !"_Z7StdMath7InvSqrtEf", i32 162,
>> >>> metadata !61, i1 false, i1 false, i32 0, i32 0, null, i32 256, i1 true,
>> >>> null, null, i32 0, metadata !29, i32 162} ; [ DW_TAG_subprogram ] [line 162]
>> >>> [InvSqrt]
>> >>> +!61 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0,
>> >>> i64 0, i64 0, i32 0, null, metadata !62, i32 0, null, null, null} ; [
>> >>> DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
>> >>> +!62 = metadata !{metadata !21, metadata !21}
>> >>> +!63 = metadata !{i32 786478, metadata !5, metadata !58, metadata
>> >>> !"Sqrt", metadata !"Sqrt", metadata !"_Z7StdMath4SqrtEd", i32 163, metadata
>> >>> !64, i1 false, i1 false, i32 0, i32 0, null, i32 256, i1 true, null, null,
>> >>> i32 0, metadata !29, i32 163} ; [ DW_TAG_subprogram ] [line 163] [Sqrt]
>> >>> +!64 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0,
>> >>> i64 0, i64 0, i32 0, null, metadata !65, i32 0, null, null, null} ; [
>> >>> DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
>> >>> +!65 = metadata !{metadata !66, metadata !66}
>> >>> +!66 = metadata !{i32 786468, null, null, metadata !"double", i32 0,
>> >>> i64 64, i64 32, i64 0, i32 0, i32 4} ; [ DW_TAG_base_type ] [double] [line
>> >>> 0, size 64, align 32, offset 0, enc DW_ATE_float]
>> >>> +!67 = metadata !{metadata !68, metadata !76, metadata !81, metadata
>> >>> !89, metadata !92, metadata !95, metadata !101}
>> >>> +!68 = metadata !{i32 786478, metadata !5, metadata !6, metadata
>> >>> !"GetMatrix", metadata !"GetMatrix", metadata !"_Z7Ellipse9GetMatrixEv", i32
>> >>> 313, metadata !31, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true,
>> >>> void (%"matrix"*, %"ellipse"*)* @_Z7Ellipse9GetMatrixEv, null, metadata !30,
>> >>> metadata !69, i32 314} ; [ DW_TAG_subprogram ] [line 313] [def] [scope 314]
>> >>> [GetMatrix]
>> >>> +!69 = metadata !{metadata !70, metadata !72, metadata !74, metadata
>> >>> !75}
>> >>> +!70 = metadata !{i32 786689, metadata !68, metadata !"this", null,
>> >>> i32 16777216, metadata !71, i32 1088, i32 0} ; [ DW_TAG_arg_variable ]
>> >>> [this] [line 0]
>> >>> +!71 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 32,
>> >>> i64 32, i64 0, i32 0, metadata !"_ZTS7EllipseE"} ; [ DW_TAG_pointer_type ]
>> >>> [line 0, size 32, align 32, offset 0] [from _ZTS7EllipseE]
>> >>> +!72 = metadata !{i32 786688, metadata !68, metadata !"vert", metadata
>> >>> !73, i32 315, metadata !12, i32 0, i32 0} ; [ DW_TAG_auto_variable ] [vert]
>> >>> [line 315]
>> >>> +!73 = metadata !{i32 786473, metadata !5}         ; [
>> >>> DW_TAG_file_type ] [/Volumes/Data/radar/15094721/test.ii]
>> >>> +!74 = metadata !{i32 786688, metadata !68, metadata !"matrix",
>> >>> metadata !73, i32 317, metadata !33, i32 8192, i32 0} ; [
>> >>> DW_TAG_auto_variable ] [matrix] [line 317]
>> >>> +!75 = metadata !{i32 786688, metadata !68, metadata !"rotateZ",
>> >>> metadata !73, i32 318, metadata !33, i32 0, i32 0} ; [ DW_TAG_auto_variable
>> >>> ] [rotateZ] [line 318]
>> >>> +!76 = metadata !{i32 786478, metadata !5, metadata !6, metadata
>> >>> !"operator*=", metadata !"operator*=", metadata !"_Z7Matrix3mLERKS0_", i32
>> >>> 219, metadata !52, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true,
>> >>> null, null, metadata !51, metadata !77, i32 220} ; [ DW_TAG_subprogram ]
>> >>> [line 219] [def] [scope 220] [operator*=]
>> >>> +!77 = metadata !{metadata !78, metadata !80}
>> >>> +!78 = metadata !{i32 786689, metadata !76, metadata !"this", null,
>> >>> i32 16777216, metadata !79, i32 1088, i32 0} ; [ DW_TAG_arg_variable ]
>> >>> [this] [line 0]
>> >>> +!79 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 32,
>> >>> i64 32, i64 0, i32 0, metadata !"_ZTS7Matrix3E"} ; [ DW_TAG_pointer_type ]
>> >>> [line 0, size 32, align 32, offset 0] [from _ZTS7Matrix3E]
>> >>> +!80 = metadata !{i32 786689, metadata !76, metadata !"matrix",
>> >>> metadata !73, i32 33554651, metadata !55, i32 0, i32 0} ; [
>> >>> DW_TAG_arg_variable ] [matrix] [line 219]
>> >>> +!81 = metadata !{i32 786478, metadata !5, metadata !6, metadata
>> >>> !"Multiply", metadata !"Multiply", metadata !"_Z7Matrix38MultiplyEPKf", i32
>> >>> 214, metadata !47, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true,
>> >>> null, null, metadata !46, metadata !82, i32 215} ; [ DW_TAG_subprogram ]
>> >>> [line 214] [def] [scope 215] [Multiply]
>> >>> +!82 = metadata !{metadata !83, metadata !84, metadata !85}
>> >>> +!83 = metadata !{i32 786689, metadata !81, metadata !"this", null,
>> >>> i32 16777216, metadata !79, i32 1088, i32 0} ; [ DW_TAG_arg_variable ]
>> >>> [this] [line 0]
>> >>> +!84 = metadata !{i32 786689, metadata !81, metadata !"matrix",
>> >>> metadata !73, i32 33554646, metadata !49, i32 0, i32 0} ; [
>> >>> DW_TAG_arg_variable ] [matrix] [line 214]
>> >>> +!85 = metadata !{i32 786688, metadata !81, metadata !"temp", metadata
>> >>> !73, i32 216, metadata !86, i32 0, i32 0} ; [ DW_TAG_auto_variable ] [temp]
>> >>> [line 216]
>> >>> +!86 = metadata !{i32 786433, null, null, metadata !"", i32 0, i64
>> >>> 512, i64 32, i32 0, i32 0, metadata !21, metadata !87, i32 0, null, null,
>> >>> null} ; [ DW_TAG_array_type ] [line 0, size 512, align 32, offset 0] [from
>> >>> float]
>> >>> +!87 = metadata !{metadata !88}
>> >>> +!88 = metadata !{i32 786465, i64 0, i64 16}       ; [
>> >>> DW_TAG_subrange_type ] [0, 15]
>> >>> +!89 = metadata !{i32 786478, metadata !5, metadata !6, metadata
>> >>> !"Matrix3", metadata !"Matrix3", metadata !"_Z7Matrix3C1Ev", i32 213,
>> >>> metadata !40, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, null,
>> >>> null, metadata !39, metadata !90, i32 213} ; [ DW_TAG_subprogram ] [line
>> >>> 213] [def] [Matrix3]
>> >>> +!90 = metadata !{metadata !91}
>> >>> +!91 = metadata !{i32 786689, metadata !89, metadata !"this", null,
>> >>> i32 16777216, metadata !79, i32 1088, i32 0} ; [ DW_TAG_arg_variable ]
>> >>> [this] [line 0]
>> >>> +!92 = metadata !{i32 786478, metadata !5, metadata !6, metadata
>> >>> !"Matrix3", metadata !"Matrix3", metadata !"_Z7Matrix3C2Ev", i32 213,
>> >>> metadata !40, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, null,
>> >>> null, metadata !39, metadata !93, i32 213} ; [ DW_TAG_subprogram ] [line
>> >>> 213] [def] [Matrix3]
>> >>> +!93 = metadata !{metadata !94}
>> >>> +!94 = metadata !{i32 786689, metadata !92, metadata !"this", null,
>> >>> i32 16777216, metadata !79, i32 1088, i32 0} ; [ DW_TAG_arg_variable ]
>> >>> [this] [line 0]
>> >>> +!95 = metadata !{i32 786478, metadata !5, metadata !6, metadata
>> >>> !"Normalize", metadata !"Normalize", metadata !"_Z7Vector39NormalizeEv", i32
>> >>> 196, metadata !25, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true,
>> >>> null, null, metadata !24, metadata !96, i32 197} ; [ DW_TAG_subprogram ]
>> >>> [line 196] [def] [scope 197] [Normalize]
>> >>> +!96 = metadata !{metadata !97, metadata !99, metadata !100}
>> >>> +!97 = metadata !{i32 786689, metadata !95, metadata !"this", null,
>> >>> i32 16777216, metadata !98, i32 1088, i32 0} ; [ DW_TAG_arg_variable ]
>> >>> [this] [line 0]
>> >>> +!98 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 32,
>> >>> i64 32, i64 0, i32 0, metadata !"_ZTS7Vector3E"} ; [ DW_TAG_pointer_type ]
>> >>> [line 0, size 32, align 32, offset 0] [from _ZTS7Vector3E]
>> >>> +!99 = metadata !{i32 786688, metadata !95, metadata !"len2", metadata
>> >>> !73, i32 198, metadata !21, i32 0, i32 0} ; [ DW_TAG_auto_variable ] [len2]
>> >>> [line 198]
>> >>> +!100 = metadata !{i32 786688, metadata !95, metadata !"invLen",
>> >>> metadata !73, i32 199, metadata !21, i32 0, i32 0} ; [ DW_TAG_auto_variable
>> >>> ] [invLen] [line 199]
>> >>> +!101 = metadata !{i32 786478, metadata !5, metadata !6, metadata
>> >>> !"InvSqrt", metadata !"InvSqrt", metadata !"_Z7StdMath7InvSqrtEf", i32 165,
>> >>> metadata !61, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, null,
>> >>> null, metadata !60, metadata !102, i32 166} ; [ DW_TAG_subprogram ] [line
>> >>> 165] [def] [scope 166] [InvSqrt]
>> >>> +!102 = metadata !{metadata !103}
>> >>> +!103 = metadata !{i32 786689, metadata !101, metadata !"a_val",
>> >>> metadata !73, i32 16777381, metadata !21, i32 0, i32 0} ; [
>> >>> DW_TAG_arg_variable ] [a_val] [line 165]
>> >>> +!104 = metadata !{metadata !105}
>> >>> +!105 = metadata !{i32 786490, metadata !0, metadata !6, i32 312} ; [
>> >>> DW_TAG_imported_module ]
>> >>>
>> >>>
>> >>> _______________________________________________
>> >>> llvm-commits mailing list
>> >>> llvm-commits at cs.uiuc.edu
>> >>> http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits
>> >
>>
>>
>> _______________________________________________
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>> llvm-commits at cs.uiuc.edu
>> http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits
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