DWARFDebugLoc(v4): Add an incremental parsing function
Summary:
This adds a visitLocationList function to the DWARF v4 location lists,
similar to what already exists for DWARF v5. It follows the approach
outlined in previous patches (D69672), where the parsed form is always
stored in the DWARF v5 format, which makes it easier for generic code to
be built on top of that. v4 location lists are "upgraded" during
parsing, and then this upgrade is undone while dumping.
Both "inline" and section-based dumping is rewritten to reuse the
existing "generic" location list dumper. This means that the output
format is consistent for all location lists (the only thing one needs to
implement is the function which prints the "raw" form of a location
list), and that debug_loc dumping correctly processes base address
selection entries, etc.
The previous existing debug_loc functionality (e.g.,
parseOneLocationList) is rewritten on top of the new API, but it is not
removed as there is still code which uses them. This will be done in
follow-up patches, after I build the API to access the "interpreted"
location lists in a generic way (as that is what those users really
want).
Reviewers: dblaikie, probinson, JDevlieghere, aprantl, SouraVX
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D69847
2019-11-05 14:46:54 +01:00
|
|
|
; RUN: llc %s -filetype=obj -o - | llvm-dwarfdump -debug-info -debug-loc - | FileCheck %s
|
2016-11-02 17:12:16 +01:00
|
|
|
; Test that DW_OP_piece is emitted for constants.
|
|
|
|
|
;
|
|
|
|
|
; // Generated from:
|
|
|
|
|
; typedef struct { int a, b; } I;
|
|
|
|
|
; I i(int i) {
|
|
|
|
|
; I r = {i, 0};
|
|
|
|
|
; return r;
|
|
|
|
|
; }
|
2018-01-16 12:17:57 +01:00
|
|
|
;
|
2016-11-02 17:12:16 +01:00
|
|
|
; typedef struct { float a, b; } F;
|
|
|
|
|
; F f(float f) {
|
|
|
|
|
; F r = {f, 0};
|
|
|
|
|
; return r;
|
|
|
|
|
; }
|
|
|
|
|
|
|
|
|
|
; CHECK: .debug_info contents:
|
|
|
|
|
; CHECK: DW_TAG_subprogram
|
DWARFDebugLoc(v4): Add an incremental parsing function
Summary:
This adds a visitLocationList function to the DWARF v4 location lists,
similar to what already exists for DWARF v5. It follows the approach
outlined in previous patches (D69672), where the parsed form is always
stored in the DWARF v5 format, which makes it easier for generic code to
be built on top of that. v4 location lists are "upgraded" during
parsing, and then this upgrade is undone while dumping.
Both "inline" and section-based dumping is rewritten to reuse the
existing "generic" location list dumper. This means that the output
format is consistent for all location lists (the only thing one needs to
implement is the function which prints the "raw" form of a location
list), and that debug_loc dumping correctly processes base address
selection entries, etc.
The previous existing debug_loc functionality (e.g.,
parseOneLocationList) is rewritten on top of the new API, but it is not
removed as there is still code which uses them. This will be done in
follow-up patches, after I build the API to access the "interpreted"
location lists in a generic way (as that is what those users really
want).
Reviewers: dblaikie, probinson, JDevlieghere, aprantl, SouraVX
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D69847
2019-11-05 14:46:54 +01:00
|
|
|
; CHECK: DW_AT_name ("i")
|
2016-11-02 17:12:16 +01:00
|
|
|
; CHECK: DW_TAG_variable
|
DWARFDebugLoc(v4): Add an incremental parsing function
Summary:
This adds a visitLocationList function to the DWARF v4 location lists,
similar to what already exists for DWARF v5. It follows the approach
outlined in previous patches (D69672), where the parsed form is always
stored in the DWARF v5 format, which makes it easier for generic code to
be built on top of that. v4 location lists are "upgraded" during
parsing, and then this upgrade is undone while dumping.
Both "inline" and section-based dumping is rewritten to reuse the
existing "generic" location list dumper. This means that the output
format is consistent for all location lists (the only thing one needs to
implement is the function which prints the "raw" form of a location
list), and that debug_loc dumping correctly processes base address
selection entries, etc.
The previous existing debug_loc functionality (e.g.,
parseOneLocationList) is rewritten on top of the new API, but it is not
removed as there is still code which uses them. This will be done in
follow-up patches, after I build the API to access the "interpreted"
location lists in a generic way (as that is what those users really
want).
Reviewers: dblaikie, probinson, JDevlieghere, aprantl, SouraVX
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D69847
2019-11-05 14:46:54 +01:00
|
|
|
; CHECK-NEXT: DW_AT_location ([[I:0x[0-9a-f]+]]
|
2018-09-05 12:18:36 +02:00
|
|
|
; CHECK-NEXT: [{{.*}}, {{.*}}): DW_OP_reg5 RDI, DW_OP_piece 0x4, DW_OP_lit0, DW_OP_stack_value, DW_OP_piece 0x4)
|
DWARFDebugLoc(v4): Add an incremental parsing function
Summary:
This adds a visitLocationList function to the DWARF v4 location lists,
similar to what already exists for DWARF v5. It follows the approach
outlined in previous patches (D69672), where the parsed form is always
stored in the DWARF v5 format, which makes it easier for generic code to
be built on top of that. v4 location lists are "upgraded" during
parsing, and then this upgrade is undone while dumping.
Both "inline" and section-based dumping is rewritten to reuse the
existing "generic" location list dumper. This means that the output
format is consistent for all location lists (the only thing one needs to
implement is the function which prints the "raw" form of a location
list), and that debug_loc dumping correctly processes base address
selection entries, etc.
The previous existing debug_loc functionality (e.g.,
parseOneLocationList) is rewritten on top of the new API, but it is not
removed as there is still code which uses them. This will be done in
follow-up patches, after I build the API to access the "interpreted"
location lists in a generic way (as that is what those users really
want).
Reviewers: dblaikie, probinson, JDevlieghere, aprantl, SouraVX
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D69847
2019-11-05 14:46:54 +01:00
|
|
|
; CHECK-NEXT: DW_AT_name ("r")
|
2016-11-02 17:12:16 +01:00
|
|
|
;
|
|
|
|
|
; CHECK: DW_TAG_subprogram
|
DWARFDebugLoc(v4): Add an incremental parsing function
Summary:
This adds a visitLocationList function to the DWARF v4 location lists,
similar to what already exists for DWARF v5. It follows the approach
outlined in previous patches (D69672), where the parsed form is always
stored in the DWARF v5 format, which makes it easier for generic code to
be built on top of that. v4 location lists are "upgraded" during
parsing, and then this upgrade is undone while dumping.
Both "inline" and section-based dumping is rewritten to reuse the
existing "generic" location list dumper. This means that the output
format is consistent for all location lists (the only thing one needs to
implement is the function which prints the "raw" form of a location
list), and that debug_loc dumping correctly processes base address
selection entries, etc.
The previous existing debug_loc functionality (e.g.,
parseOneLocationList) is rewritten on top of the new API, but it is not
removed as there is still code which uses them. This will be done in
follow-up patches, after I build the API to access the "interpreted"
location lists in a generic way (as that is what those users really
want).
Reviewers: dblaikie, probinson, JDevlieghere, aprantl, SouraVX
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D69847
2019-11-05 14:46:54 +01:00
|
|
|
; CHECK: DW_AT_name ("f")
|
2016-11-02 17:12:16 +01:00
|
|
|
; CHECK: DW_TAG_variable
|
DWARFDebugLoc(v4): Add an incremental parsing function
Summary:
This adds a visitLocationList function to the DWARF v4 location lists,
similar to what already exists for DWARF v5. It follows the approach
outlined in previous patches (D69672), where the parsed form is always
stored in the DWARF v5 format, which makes it easier for generic code to
be built on top of that. v4 location lists are "upgraded" during
parsing, and then this upgrade is undone while dumping.
Both "inline" and section-based dumping is rewritten to reuse the
existing "generic" location list dumper. This means that the output
format is consistent for all location lists (the only thing one needs to
implement is the function which prints the "raw" form of a location
list), and that debug_loc dumping correctly processes base address
selection entries, etc.
The previous existing debug_loc functionality (e.g.,
parseOneLocationList) is rewritten on top of the new API, but it is not
removed as there is still code which uses them. This will be done in
follow-up patches, after I build the API to access the "interpreted"
location lists in a generic way (as that is what those users really
want).
Reviewers: dblaikie, probinson, JDevlieghere, aprantl, SouraVX
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D69847
2019-11-05 14:46:54 +01:00
|
|
|
; CHECK-NEXT: DW_AT_location ([[F:0x[0-9a-f]+]]
|
2019-06-10 17:23:46 +02:00
|
|
|
; CHECK-NEXT: [{{.*}}, {{.*}}): DW_OP_reg17 XMM0, DW_OP_piece 0x4, DW_OP_lit0, DW_OP_stack_value, DW_OP_piece 0x4
|
|
|
|
|
; CHECK-NEXT: [{{.*}}, {{.*}}): DW_OP_piece 0x4, DW_OP_lit0, DW_OP_stack_value, DW_OP_piece 0x4)
|
DWARFDebugLoc(v4): Add an incremental parsing function
Summary:
This adds a visitLocationList function to the DWARF v4 location lists,
similar to what already exists for DWARF v5. It follows the approach
outlined in previous patches (D69672), where the parsed form is always
stored in the DWARF v5 format, which makes it easier for generic code to
be built on top of that. v4 location lists are "upgraded" during
parsing, and then this upgrade is undone while dumping.
Both "inline" and section-based dumping is rewritten to reuse the
existing "generic" location list dumper. This means that the output
format is consistent for all location lists (the only thing one needs to
implement is the function which prints the "raw" form of a location
list), and that debug_loc dumping correctly processes base address
selection entries, etc.
The previous existing debug_loc functionality (e.g.,
parseOneLocationList) is rewritten on top of the new API, but it is not
removed as there is still code which uses them. This will be done in
follow-up patches, after I build the API to access the "interpreted"
location lists in a generic way (as that is what those users really
want).
Reviewers: dblaikie, probinson, JDevlieghere, aprantl, SouraVX
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D69847
2019-11-05 14:46:54 +01:00
|
|
|
; CHECK-NEXT: DW_AT_name ("r")
|
2016-11-02 17:12:16 +01:00
|
|
|
;
|
|
|
|
|
; CHECK: .debug_loc contents:
|
[dwarfdump] Pretty print location expressions and location lists
Summary:
Based on Fred's patch here: https://reviews.llvm.org/D6771
I can't seem to commandeer the old review, so I'm creating a new one.
With that change the locations exrpessions are pretty printed inline in the
DIE tree. The output looks like this for debug_loc entries:
DW_AT_location [DW_FORM_data4] (0x00000000
0x0000000000000001 - 0x000000000000000b: DW_OP_consts +3
0x000000000000000b - 0x0000000000000012: DW_OP_consts +7
0x0000000000000012 - 0x000000000000001b: DW_OP_reg0 RAX, DW_OP_piece 0x4
0x000000000000001b - 0x0000000000000024: DW_OP_breg5 RDI+0)
And like this for debug_loc.dwo entries:
DW_AT_location [DW_FORM_sec_offset] (0x00000000
Addr idx 2 (w/ length 190): DW_OP_consts +0, DW_OP_stack_value
Addr idx 3 (w/ length 23): DW_OP_reg0 RAX, DW_OP_piece 0x4)
Simple locations without ranges are printed inline:
DW_AT_location [DW_FORM_block1] (DW_OP_reg4 RSI, DW_OP_piece 0x4, DW_OP_bit_piece 0x20 0x0)
The debug_loc(.dwo) dumping in changed accordingly to factor the code.
Reviewers: dblaikie, aprantl, friss
Subscribers: mgorny, javed.absar, hiraditya, llvm-commits, JDevlieghere
Differential Revision: https://reviews.llvm.org/D37123
llvm-svn: 312042
2017-08-29 23:41:21 +02:00
|
|
|
; CHECK: [[I]]:
|
DWARFDebugLoc(v4): Add an incremental parsing function
Summary:
This adds a visitLocationList function to the DWARF v4 location lists,
similar to what already exists for DWARF v5. It follows the approach
outlined in previous patches (D69672), where the parsed form is always
stored in the DWARF v5 format, which makes it easier for generic code to
be built on top of that. v4 location lists are "upgraded" during
parsing, and then this upgrade is undone while dumping.
Both "inline" and section-based dumping is rewritten to reuse the
existing "generic" location list dumper. This means that the output
format is consistent for all location lists (the only thing one needs to
implement is the function which prints the "raw" form of a location
list), and that debug_loc dumping correctly processes base address
selection entries, etc.
The previous existing debug_loc functionality (e.g.,
parseOneLocationList) is rewritten on top of the new API, but it is not
removed as there is still code which uses them. This will be done in
follow-up patches, after I build the API to access the "interpreted"
location lists in a generic way (as that is what those users really
want).
Reviewers: dblaikie, probinson, JDevlieghere, aprantl, SouraVX
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D69847
2019-11-05 14:46:54 +01:00
|
|
|
; CHECK-NEXT: ({{.*}}, {{.*}}): DW_OP_reg5 RDI, DW_OP_piece 0x4, DW_OP_lit0, DW_OP_stack_value, DW_OP_piece 0x4
|
[dwarfdump] Pretty print location expressions and location lists
Summary:
Based on Fred's patch here: https://reviews.llvm.org/D6771
I can't seem to commandeer the old review, so I'm creating a new one.
With that change the locations exrpessions are pretty printed inline in the
DIE tree. The output looks like this for debug_loc entries:
DW_AT_location [DW_FORM_data4] (0x00000000
0x0000000000000001 - 0x000000000000000b: DW_OP_consts +3
0x000000000000000b - 0x0000000000000012: DW_OP_consts +7
0x0000000000000012 - 0x000000000000001b: DW_OP_reg0 RAX, DW_OP_piece 0x4
0x000000000000001b - 0x0000000000000024: DW_OP_breg5 RDI+0)
And like this for debug_loc.dwo entries:
DW_AT_location [DW_FORM_sec_offset] (0x00000000
Addr idx 2 (w/ length 190): DW_OP_consts +0, DW_OP_stack_value
Addr idx 3 (w/ length 23): DW_OP_reg0 RAX, DW_OP_piece 0x4)
Simple locations without ranges are printed inline:
DW_AT_location [DW_FORM_block1] (DW_OP_reg4 RSI, DW_OP_piece 0x4, DW_OP_bit_piece 0x20 0x0)
The debug_loc(.dwo) dumping in changed accordingly to factor the code.
Reviewers: dblaikie, aprantl, friss
Subscribers: mgorny, javed.absar, hiraditya, llvm-commits, JDevlieghere
Differential Revision: https://reviews.llvm.org/D37123
llvm-svn: 312042
2017-08-29 23:41:21 +02:00
|
|
|
; CHECK: [[F]]:
|
DWARFDebugLoc(v4): Add an incremental parsing function
Summary:
This adds a visitLocationList function to the DWARF v4 location lists,
similar to what already exists for DWARF v5. It follows the approach
outlined in previous patches (D69672), where the parsed form is always
stored in the DWARF v5 format, which makes it easier for generic code to
be built on top of that. v4 location lists are "upgraded" during
parsing, and then this upgrade is undone while dumping.
Both "inline" and section-based dumping is rewritten to reuse the
existing "generic" location list dumper. This means that the output
format is consistent for all location lists (the only thing one needs to
implement is the function which prints the "raw" form of a location
list), and that debug_loc dumping correctly processes base address
selection entries, etc.
The previous existing debug_loc functionality (e.g.,
parseOneLocationList) is rewritten on top of the new API, but it is not
removed as there is still code which uses them. This will be done in
follow-up patches, after I build the API to access the "interpreted"
location lists in a generic way (as that is what those users really
want).
Reviewers: dblaikie, probinson, JDevlieghere, aprantl, SouraVX
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D69847
2019-11-05 14:46:54 +01:00
|
|
|
; CHECK-NEXT: ({{.*}}, {{.*}}): DW_OP_reg17 XMM0, DW_OP_piece 0x4, DW_OP_lit0, DW_OP_stack_value, DW_OP_piece 0x4
|
2016-11-02 17:12:16 +01:00
|
|
|
|
|
|
|
|
source_filename = "stack-value-piece.c"
|
|
|
|
|
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
|
|
|
|
|
target triple = "x86_64-apple-macosx10.12.0"
|
|
|
|
|
|
|
|
|
|
%struct.I = type { i32, i32 }
|
|
|
|
|
%struct.F = type { float, float }
|
|
|
|
|
|
|
|
|
|
; Function Attrs: nounwind readnone ssp uwtable
|
|
|
|
|
define i64 @i(i32 %i) local_unnamed_addr #0 !dbg !7 {
|
|
|
|
|
entry:
|
2017-07-28 22:21:02 +02:00
|
|
|
tail call void @llvm.dbg.value(metadata i32 %i, metadata !18, metadata !22), !dbg !21
|
|
|
|
|
tail call void @llvm.dbg.value(metadata i32 0, metadata !18, metadata !23), !dbg !21
|
2016-11-02 17:12:16 +01:00
|
|
|
%retval.sroa.0.0.insert.ext = zext i32 %i to i64, !dbg !24
|
|
|
|
|
ret i64 %retval.sroa.0.0.insert.ext, !dbg !24
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
; Function Attrs: nounwind readnone
|
|
|
|
|
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
|
|
|
|
|
|
|
|
|
|
; Function Attrs: nounwind readnone ssp uwtable
|
|
|
|
|
define <2 x float> @f(float %f) local_unnamed_addr #0 !dbg !25 {
|
|
|
|
|
entry:
|
2017-07-28 22:21:02 +02:00
|
|
|
tail call void @llvm.dbg.value(metadata float %f, metadata !36, metadata !22), !dbg !38
|
|
|
|
|
tail call void @llvm.dbg.value(metadata float 0.000000e+00, metadata !36, metadata !23), !dbg !38
|
2016-11-02 17:12:16 +01:00
|
|
|
%retval.sroa.0.0.vec.insert = insertelement <2 x float> undef, float %f, i32 0, !dbg !39
|
|
|
|
|
%retval.sroa.0.4.vec.insert = insertelement <2 x float> %retval.sroa.0.0.vec.insert, float 0.000000e+00, i32 1, !dbg !39
|
|
|
|
|
ret <2 x float> %retval.sroa.0.4.vec.insert, !dbg !40
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
; Function Attrs: nounwind readnone
|
2017-07-28 22:21:02 +02:00
|
|
|
declare void @llvm.dbg.value(metadata, metadata, metadata) #1
|
2016-11-02 17:12:16 +01:00
|
|
|
|
|
|
|
|
attributes #0 = { nounwind readnone ssp uwtable }
|
|
|
|
|
attributes #1 = { nounwind readnone }
|
|
|
|
|
|
|
|
|
|
!llvm.dbg.cu = !{!0}
|
|
|
|
|
!llvm.module.flags = !{!3, !4, !5}
|
|
|
|
|
!llvm.ident = !{!6}
|
|
|
|
|
|
|
|
|
|
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 4.0.0 (trunk 285655) (llvm/trunk 285654)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
|
|
|
|
|
!1 = !DIFile(filename: "stack-value-piece.c", directory: "/")
|
|
|
|
|
!2 = !{}
|
|
|
|
|
!3 = !{i32 2, !"Dwarf Version", i32 4}
|
|
|
|
|
!4 = !{i32 2, !"Debug Info Version", i32 3}
|
|
|
|
|
!5 = !{i32 1, !"PIC Level", i32 2}
|
|
|
|
|
!6 = !{!"clang version 4.0.0 (trunk 285655) (llvm/trunk 285654)"}
|
|
|
|
|
!7 = distinct !DISubprogram(name: "i", scope: !1, file: !1, line: 2, type: !8, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: true, unit: !0)
|
|
|
|
|
!8 = !DISubroutineType(types: !9)
|
|
|
|
|
!9 = !{!10, !14}
|
|
|
|
|
!10 = !DIDerivedType(tag: DW_TAG_typedef, name: "I", file: !1, line: 1, baseType: !11)
|
|
|
|
|
!11 = distinct !DICompositeType(tag: DW_TAG_structure_type, file: !1, line: 1, size: 64, elements: !12)
|
|
|
|
|
!12 = !{!13, !15}
|
|
|
|
|
!13 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !11, file: !1, line: 1, baseType: !14, size: 32)
|
|
|
|
|
!14 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
|
|
|
|
|
!15 = !DIDerivedType(tag: DW_TAG_member, name: "b", scope: !11, file: !1, line: 1, baseType: !14, size: 32, offset: 32)
|
|
|
|
|
!18 = !DILocalVariable(name: "r", scope: !7, file: !1, line: 3, type: !10)
|
|
|
|
|
!19 = !DIExpression()
|
|
|
|
|
!20 = !DILocation(line: 2, column: 9, scope: !7)
|
|
|
|
|
!21 = !DILocation(line: 3, column: 5, scope: !7)
|
2016-12-05 19:04:47 +01:00
|
|
|
!22 = !DIExpression(DW_OP_LLVM_fragment, 0, 32)
|
|
|
|
|
!23 = !DIExpression(DW_OP_LLVM_fragment, 32, 32)
|
2016-11-02 17:12:16 +01:00
|
|
|
!24 = !DILocation(line: 5, column: 1, scope: !7)
|
|
|
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!25 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 8, type: !26, isLocal: false, isDefinition: true, scopeLine: 8, flags: DIFlagPrototyped, isOptimized: true, unit: !0)
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!26 = !DISubroutineType(types: !27)
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!27 = !{!28, !32}
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!28 = !DIDerivedType(tag: DW_TAG_typedef, name: "F", file: !1, line: 7, baseType: !29)
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!29 = distinct !DICompositeType(tag: DW_TAG_structure_type, file: !1, line: 7, size: 64, elements: !30)
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!30 = !{!31, !33}
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!31 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !29, file: !1, line: 7, baseType: !32, size: 32)
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!32 = !DIBasicType(name: "float", size: 32, encoding: DW_ATE_float)
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!33 = !DIDerivedType(tag: DW_TAG_member, name: "b", scope: !29, file: !1, line: 7, baseType: !32, size: 32, offset: 32)
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!36 = !DILocalVariable(name: "r", scope: !25, file: !1, line: 9, type: !28)
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!37 = !DILocation(line: 8, column: 11, scope: !25)
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!38 = !DILocation(line: 9, column: 5, scope: !25)
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!39 = !DILocation(line: 10, column: 10, scope: !25)
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!40 = !DILocation(line: 11, column: 1, scope: !25)
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