[DWARFYAML] Add support for emitting multiple abbrev tables.

This patch adds support for emitting multiple abbrev tables. Currently,
compilation units will always reference the first abbrev table.

Reviewed By: jhenderson, labath

Differential Revision: https://reviews.llvm.org/D86194

1 files changed, 278 insertions, 258 deletions

diff --git a/llvm/unittests/DebugInfo/DWARF/DWARFDebugInfoTest.cpp b/llvm/unittests/DebugInfo/DWARF/DWARFDebugInfoTest.cpp
index 6e52156..f59b18f 100644
--- a/llvm/unittests/DebugInfo/DWARF/DWARFDebugInfoTest.cpp
+++ b/llvm/unittests/DebugInfo/DWARF/DWARFDebugInfoTest.cpp
@@ -1363,10 +1363,11 @@ TEST(DWARFDebugInfo, TestChildIteratorsOnInvalidDie) {
 
 TEST(DWARFDebugInfo, TestEmptyChildren) {
   const char *yamldata = "debug_abbrev:\n"
-                         "  - Code:            0x00000001\n"
-                         "    Tag:             DW_TAG_compile_unit\n"
-                         "    Children:        DW_CHILDREN_yes\n"
-                         "    Attributes:\n"
+                         "  - Table:\n"
+                         "      - Code:            0x00000001\n"
+                         "        Tag:             DW_TAG_compile_unit\n"
+                         "        Children:        DW_CHILDREN_yes\n"
+                         "        Attributes:\n"
                          "debug_info:\n"
                          "  - Version:         4\n"
                          "    AbbrOffset:      0\n"
@@ -1885,20 +1886,21 @@ TEST(DWARFDebugInfo, TestDwarfVerifyInvalidCURef) {
       - /tmp/main.c
       - main
     debug_abbrev:
-      - Code:            0x00000001
-        Tag:             DW_TAG_compile_unit
-        Children:        DW_CHILDREN_yes
-        Attributes:
-          - Attribute:       DW_AT_name
-            Form:            DW_FORM_strp
-      - Code:            0x00000002
-        Tag:             DW_TAG_subprogram
-        Children:        DW_CHILDREN_no
-        Attributes:
-          - Attribute:       DW_AT_name
-            Form:            DW_FORM_strp
-          - Attribute:       DW_AT_type
-            Form:            DW_FORM_ref4
+      - Table:
+          - Code:            0x00000001
+            Tag:             DW_TAG_compile_unit
+            Children:        DW_CHILDREN_yes
+            Attributes:
+              - Attribute:       DW_AT_name
+                Form:            DW_FORM_strp
+          - Code:            0x00000002
+            Tag:             DW_TAG_subprogram
+            Children:        DW_CHILDREN_no
+            Attributes:
+              - Attribute:       DW_AT_name
+                Form:            DW_FORM_strp
+              - Attribute:       DW_AT_type
+                Form:            DW_FORM_ref4
     debug_info:
       - Length:          22
         Version:         4
@@ -1933,20 +1935,21 @@ TEST(DWARFDebugInfo, TestDwarfVerifyInvalidRefAddr) {
       - /tmp/main.c
       - main
     debug_abbrev:
-      - Code:            0x00000001
-        Tag:             DW_TAG_compile_unit
-        Children:        DW_CHILDREN_yes
-        Attributes:
-          - Attribute:       DW_AT_name
-            Form:            DW_FORM_strp
-      - Code:            0x00000002
-        Tag:             DW_TAG_subprogram
-        Children:        DW_CHILDREN_no
-        Attributes:
-          - Attribute:       DW_AT_name
-            Form:            DW_FORM_strp
-          - Attribute:       DW_AT_type
-            Form:            DW_FORM_ref_addr
+      - Table:
+          - Code:            0x00000001
+            Tag:             DW_TAG_compile_unit
+            Children:        DW_CHILDREN_yes
+            Attributes:
+              - Attribute:       DW_AT_name
+                Form:            DW_FORM_strp
+          - Code:            0x00000002
+            Tag:             DW_TAG_subprogram
+            Children:        DW_CHILDREN_no
+            Attributes:
+              - Attribute:       DW_AT_name
+                Form:            DW_FORM_strp
+              - Attribute:       DW_AT_type
+                Form:            DW_FORM_ref_addr
     debug_info:
       - Length:          22
         Version:         4
@@ -1979,14 +1982,15 @@ TEST(DWARFDebugInfo, TestDwarfVerifyInvalidRanges) {
       - ''
       - /tmp/main.c
     debug_abbrev:
-      - Code:            0x00000001
-        Tag:             DW_TAG_compile_unit
-        Children:        DW_CHILDREN_no
-        Attributes:
-          - Attribute:       DW_AT_name
-            Form:            DW_FORM_strp
-          - Attribute:       DW_AT_ranges
-            Form:            DW_FORM_sec_offset
+      - Table:
+          - Code:            0x00000001
+            Tag:             DW_TAG_compile_unit
+            Children:        DW_CHILDREN_no
+            Attributes:
+              - Attribute:       DW_AT_name
+                Form:            DW_FORM_strp
+              - Attribute:       DW_AT_ranges
+                Form:            DW_FORM_sec_offset
     debug_info:
       - Length:          16
         Version:         4
@@ -2016,14 +2020,15 @@ TEST(DWARFDebugInfo, TestDwarfVerifyInvalidRnglists) {
       - ''
       - /tmp/main.c
     debug_abbrev:
-      - Code:            0x00000001
-        Tag:             DW_TAG_compile_unit
-        Children:        DW_CHILDREN_no
-        Attributes:
-          - Attribute:       DW_AT_name
-            Form:            DW_FORM_strp
-          - Attribute:       DW_AT_ranges
-            Form:            DW_FORM_sec_offset
+      - Table:
+          - Code:            0x00000001
+            Tag:             DW_TAG_compile_unit
+            Children:        DW_CHILDREN_no
+            Attributes:
+              - Attribute:       DW_AT_name
+                Form:            DW_FORM_strp
+              - Attribute:       DW_AT_ranges
+                Form:            DW_FORM_sec_offset
     debug_info:
       - Length:          17
         Version:         5
@@ -2053,14 +2058,15 @@ TEST(DWARFDebugInfo, TestDwarfVerifyInvalidStmtList) {
       - ''
       - /tmp/main.c
     debug_abbrev:
-      - Code:            0x00000001
-        Tag:             DW_TAG_compile_unit
-        Children:        DW_CHILDREN_no
-        Attributes:
-          - Attribute:       DW_AT_name
-            Form:            DW_FORM_strp
-          - Attribute:       DW_AT_stmt_list
-            Form:            DW_FORM_sec_offset
+      - Table:
+          - Code:            0x00000001
+            Tag:             DW_TAG_compile_unit
+            Children:        DW_CHILDREN_no
+            Attributes:
+              - Attribute:       DW_AT_name
+                Form:            DW_FORM_strp
+              - Attribute:       DW_AT_stmt_list
+                Form:            DW_FORM_sec_offset
     debug_info:
       - Length:          16
         Version:         4
@@ -2089,12 +2095,13 @@ TEST(DWARFDebugInfo, TestDwarfVerifyInvalidStrp) {
     debug_str:
       - ''
     debug_abbrev:
-      - Code:            0x00000001
-        Tag:             DW_TAG_compile_unit
-        Children:        DW_CHILDREN_no
-        Attributes:
-          - Attribute:       DW_AT_name
-            Form:            DW_FORM_strp
+      - Table:
+          - Code:            0x00000001
+            Tag:             DW_TAG_compile_unit
+            Children:        DW_CHILDREN_no
+            Attributes:
+              - Attribute:       DW_AT_name
+                Form:            DW_FORM_strp
     debug_info:
       - Length:          12
         Version:         4
@@ -2122,20 +2129,21 @@ TEST(DWARFDebugInfo, TestDwarfVerifyInvalidRefAddrBetween) {
       - /tmp/main.c
       - main
     debug_abbrev:
-      - Code:            0x00000001
-        Tag:             DW_TAG_compile_unit
-        Children:        DW_CHILDREN_yes
-        Attributes:
-          - Attribute:       DW_AT_name
-            Form:            DW_FORM_strp
-      - Code:            0x00000002
-        Tag:             DW_TAG_subprogram
-        Children:        DW_CHILDREN_no
-        Attributes:
-          - Attribute:       DW_AT_name
-            Form:            DW_FORM_strp
-          - Attribute:       DW_AT_type
-            Form:            DW_FORM_ref_addr
+      - Table:
+          - Code:            0x00000001
+            Tag:             DW_TAG_compile_unit
+            Children:        DW_CHILDREN_yes
+            Attributes:
+              - Attribute:       DW_AT_name
+                Form:            DW_FORM_strp
+          - Code:            0x00000002
+            Tag:             DW_TAG_subprogram
+            Children:        DW_CHILDREN_no
+            Attributes:
+              - Attribute:       DW_AT_name
+                Form:            DW_FORM_strp
+              - Attribute:       DW_AT_type
+                Form:            DW_FORM_ref_addr
     debug_info:
       - Length:          22
         Version:         4
@@ -2169,14 +2177,15 @@ TEST(DWARFDebugInfo, TestDwarfVerifyInvalidLineSequence) {
       - ''
       - /tmp/main.c
     debug_abbrev:
-      - Code:            0x00000001
-        Tag:             DW_TAG_compile_unit
-        Children:        DW_CHILDREN_no
-        Attributes:
-          - Attribute:       DW_AT_name
-            Form:            DW_FORM_strp
-          - Attribute:       DW_AT_stmt_list
-            Form:            DW_FORM_sec_offset
+      - Table:
+          - Code:            0x00000001
+            Tag:             DW_TAG_compile_unit
+            Children:        DW_CHILDREN_no
+            Attributes:
+              - Attribute:       DW_AT_name
+                Form:            DW_FORM_strp
+              - Attribute:       DW_AT_stmt_list
+                Form:            DW_FORM_sec_offset
     debug_info:
       - Length:          16
         Version:         4
@@ -2237,14 +2246,15 @@ TEST(DWARFDebugInfo, TestDwarfVerifyInvalidLineFileIndex) {
       - ''
       - /tmp/main.c
     debug_abbrev:
-      - Code:            0x00000001
-        Tag:             DW_TAG_compile_unit
-        Children:        DW_CHILDREN_no
-        Attributes:
-          - Attribute:       DW_AT_name
-            Form:            DW_FORM_strp
-          - Attribute:       DW_AT_stmt_list
-            Form:            DW_FORM_sec_offset
+      - Table:
+          - Code:            0x00000001
+            Tag:             DW_TAG_compile_unit
+            Children:        DW_CHILDREN_no
+            Attributes:
+              - Attribute:       DW_AT_name
+                Form:            DW_FORM_strp
+              - Attribute:       DW_AT_stmt_list
+                Form:            DW_FORM_sec_offset
     debug_info:
       - Length:          16
         Version:         4
@@ -2307,14 +2317,15 @@ TEST(DWARFDebugInfo, TestDwarfVerifyInvalidLineTablePorlogueDirIndex) {
       - ''
       - /tmp/main.c
     debug_abbrev:
-      - Code:            0x00000001
-        Tag:             DW_TAG_compile_unit
-        Children:        DW_CHILDREN_no
-        Attributes:
-          - Attribute:       DW_AT_name
-            Form:            DW_FORM_strp
-          - Attribute:       DW_AT_stmt_list
-            Form:            DW_FORM_sec_offset
+      - Table:
+          - Code:            0x00000001
+            Tag:             DW_TAG_compile_unit
+            Children:        DW_CHILDREN_no
+            Attributes:
+              - Attribute:       DW_AT_name
+                Form:            DW_FORM_strp
+              - Attribute:       DW_AT_stmt_list
+                Form:            DW_FORM_sec_offset
     debug_info:
       - Length:          16
         Version:         4
@@ -2378,14 +2389,15 @@ TEST(DWARFDebugInfo, TestDwarfVerifyDuplicateFileWarning) {
       - ''
       - /tmp/main.c
     debug_abbrev:
-      - Code:            0x00000001
-        Tag:             DW_TAG_compile_unit
-        Children:        DW_CHILDREN_no
-        Attributes:
-          - Attribute:       DW_AT_name
-            Form:            DW_FORM_strp
-          - Attribute:       DW_AT_stmt_list
-            Form:            DW_FORM_sec_offset
+      - Table:
+          - Code:            0x00000001
+            Tag:             DW_TAG_compile_unit
+            Children:        DW_CHILDREN_no
+            Attributes:
+              - Attribute:       DW_AT_name
+                Form:            DW_FORM_strp
+              - Attribute:       DW_AT_stmt_list
+                Form:            DW_FORM_sec_offset
     debug_info:
       - Length:          16
         Version:         4
@@ -2454,14 +2466,15 @@ TEST(DWARFDebugInfo, TestDwarfVerifyCUDontShareLineTable) {
       - /tmp/main.c
       - /tmp/foo.c
     debug_abbrev:
-      - Code:            0x00000001
-        Tag:             DW_TAG_compile_unit
-        Children:        DW_CHILDREN_no
-        Attributes:
-          - Attribute:       DW_AT_name
-            Form:            DW_FORM_strp
-          - Attribute:       DW_AT_stmt_list
-            Form:            DW_FORM_sec_offset
+      - Table:
+          - Code:            0x00000001
+            Tag:             DW_TAG_compile_unit
+            Children:        DW_CHILDREN_no
+            Attributes:
+              - Attribute:       DW_AT_name
+                Form:            DW_FORM_strp
+              - Attribute:       DW_AT_stmt_list
+                Form:            DW_FORM_sec_offset
     debug_info:
       - Length:          16
         Version:         4
@@ -2569,24 +2582,25 @@ TEST(DWARFDebugInfo, TestDwarfVerifyCURangesIncomplete) {
       - ''
       - /tmp/main.c
     debug_abbrev:
-      - Code:            0x00000001
-        Tag:             DW_TAG_compile_unit
-        Children:        DW_CHILDREN_yes
-        Attributes:
-          - Attribute:       DW_AT_low_pc
-            Form:            DW_FORM_addr
-          - Attribute:       DW_AT_high_pc
-            Form:            DW_FORM_addr
-          - Attribute:       DW_AT_name
-            Form:            DW_FORM_strp
-      - Code:            0x00000002
-        Tag:             DW_TAG_subprogram
-        Children:        DW_CHILDREN_no
-        Attributes:
-          - Attribute:       DW_AT_low_pc
-            Form:            DW_FORM_addr
-          - Attribute:       DW_AT_high_pc
-            Form:            DW_FORM_addr
+      - Table:
+          - Code:            0x00000001
+            Tag:             DW_TAG_compile_unit
+            Children:        DW_CHILDREN_yes
+            Attributes:
+              - Attribute:       DW_AT_low_pc
+                Form:            DW_FORM_addr
+              - Attribute:       DW_AT_high_pc
+                Form:            DW_FORM_addr
+              - Attribute:       DW_AT_name
+                Form:            DW_FORM_strp
+          - Code:            0x00000002
+            Tag:             DW_TAG_subprogram
+            Children:        DW_CHILDREN_no
+            Attributes:
+              - Attribute:       DW_AT_low_pc
+                Form:            DW_FORM_addr
+              - Attribute:       DW_AT_high_pc
+                Form:            DW_FORM_addr
     debug_info:
       - Length:          46
         Version:         4
@@ -2622,30 +2636,31 @@ TEST(DWARFDebugInfo, TestDwarfVerifyLexicalBlockRanges) {
       - /tmp/main.c
       - main
     debug_abbrev:
-      - Code:            0x00000001
-        Tag:             DW_TAG_compile_unit
-        Children:        DW_CHILDREN_yes
-        Attributes:
-          - Attribute:       DW_AT_name
-            Form:            DW_FORM_strp
-      - Code:            0x00000002
-        Tag:             DW_TAG_subprogram
-        Children:        DW_CHILDREN_yes
-        Attributes:
-          - Attribute:       DW_AT_name
-            Form:            DW_FORM_strp
-          - Attribute:       DW_AT_low_pc
-            Form:            DW_FORM_addr
-          - Attribute:       DW_AT_high_pc
-            Form:            DW_FORM_addr
-      - Code:            0x00000003
-        Tag:             DW_TAG_lexical_block
-        Children:        DW_CHILDREN_no
-        Attributes:
-          - Attribute:       DW_AT_low_pc
-            Form:            DW_FORM_addr
-          - Attribute:       DW_AT_high_pc
-            Form:            DW_FORM_addr
+      - Table:
+          - Code:            0x00000001
+            Tag:             DW_TAG_compile_unit
+            Children:        DW_CHILDREN_yes
+            Attributes:
+              - Attribute:       DW_AT_name
+                Form:            DW_FORM_strp
+          - Code:            0x00000002
+            Tag:             DW_TAG_subprogram
+            Children:        DW_CHILDREN_yes
+            Attributes:
+              - Attribute:       DW_AT_name
+                Form:            DW_FORM_strp
+              - Attribute:       DW_AT_low_pc
+                Form:            DW_FORM_addr
+              - Attribute:       DW_AT_high_pc
+                Form:            DW_FORM_addr
+          - Code:            0x00000003
+            Tag:             DW_TAG_lexical_block
+            Children:        DW_CHILDREN_no
+            Attributes:
+              - Attribute:       DW_AT_low_pc
+                Form:            DW_FORM_addr
+              - Attribute:       DW_AT_high_pc
+                Form:            DW_FORM_addr
     debug_info:
       - Length:          52
         Version:         4
@@ -2687,22 +2702,23 @@ TEST(DWARFDebugInfo, TestDwarfVerifyOverlappingFunctionRanges) {
       - main
       - foo
     debug_abbrev:
-      - Code:            0x00000001
-        Tag:             DW_TAG_compile_unit
-        Children:        DW_CHILDREN_yes
-        Attributes:
-          - Attribute:       DW_AT_name
-            Form:            DW_FORM_strp
-      - Code:            0x00000002
-        Tag:             DW_TAG_subprogram
-        Children:        DW_CHILDREN_no
-        Attributes:
-          - Attribute:       DW_AT_name
-            Form:            DW_FORM_strp
-          - Attribute:       DW_AT_low_pc
-            Form:            DW_FORM_addr
-          - Attribute:       DW_AT_high_pc
-            Form:            DW_FORM_addr
+      - Table:
+          - Code:            0x00000001
+            Tag:             DW_TAG_compile_unit
+            Children:        DW_CHILDREN_yes
+            Attributes:
+              - Attribute:       DW_AT_name
+                Form:            DW_FORM_strp
+          - Code:            0x00000002
+            Tag:             DW_TAG_subprogram
+            Children:        DW_CHILDREN_no
+            Attributes:
+              - Attribute:       DW_AT_name
+                Form:            DW_FORM_strp
+              - Attribute:       DW_AT_low_pc
+                Form:            DW_FORM_addr
+              - Attribute:       DW_AT_high_pc
+                Form:            DW_FORM_addr
     debug_info:
       - Length:          55
         Version:         4
@@ -2741,34 +2757,35 @@ TEST(DWARFDebugInfo, TestDwarfVerifyOverlappingLexicalBlockRanges) {
       - /tmp/main.c
       - main
     debug_abbrev:
-      - Code:            0x00000001
-        Tag:             DW_TAG_compile_unit
-        Children:        DW_CHILDREN_yes
-        Attributes:
-          - Attribute:       DW_AT_low_pc
-            Form:            DW_FORM_addr
-          - Attribute:       DW_AT_high_pc
-            Form:            DW_FORM_addr
-          - Attribute:       DW_AT_name
-            Form:            DW_FORM_strp
-      - Code:            0x00000002
-        Tag:             DW_TAG_subprogram
-        Children:        DW_CHILDREN_yes
-        Attributes:
-          - Attribute:       DW_AT_name
-            Form:            DW_FORM_strp
-          - Attribute:       DW_AT_low_pc
-            Form:            DW_FORM_addr
-          - Attribute:       DW_AT_high_pc
-            Form:            DW_FORM_addr
-      - Code:            0x00000003
-        Tag:             DW_TAG_lexical_block
-        Children:        DW_CHILDREN_no
-        Attributes:
-          - Attribute:       DW_AT_low_pc
-            Form:            DW_FORM_addr
-          - Attribute:       DW_AT_high_pc
-            Form:            DW_FORM_addr
+      - Table:
+          - Code:            0x00000001
+            Tag:             DW_TAG_compile_unit
+            Children:        DW_CHILDREN_yes
+            Attributes:
+              - Attribute:       DW_AT_low_pc
+                Form:            DW_FORM_addr
+              - Attribute:       DW_AT_high_pc
+                Form:            DW_FORM_addr
+              - Attribute:       DW_AT_name
+                Form:            DW_FORM_strp
+          - Code:            0x00000002
+            Tag:             DW_TAG_subprogram
+            Children:        DW_CHILDREN_yes
+            Attributes:
+              - Attribute:       DW_AT_name
+                Form:            DW_FORM_strp
+              - Attribute:       DW_AT_low_pc
+                Form:            DW_FORM_addr
+              - Attribute:       DW_AT_high_pc
+                Form:            DW_FORM_addr
+          - Code:            0x00000003
+            Tag:             DW_TAG_lexical_block
+            Children:        DW_CHILDREN_no
+            Attributes:
+              - Attribute:       DW_AT_low_pc
+                Form:            DW_FORM_addr
+              - Attribute:       DW_AT_high_pc
+                Form:            DW_FORM_addr
     debug_info:
       - Length:          85
         Version:         4
@@ -2814,22 +2831,23 @@ TEST(DWARFDebugInfo, TestDwarfVerifyInvalidDIERange) {
       - /tmp/main.c
       - main
     debug_abbrev:
-      - Code:            0x00000001
-        Tag:             DW_TAG_compile_unit
-        Children:        DW_CHILDREN_yes
-        Attributes:
-          - Attribute:       DW_AT_name
-            Form:            DW_FORM_strp
-      - Code:            0x00000002
-        Tag:             DW_TAG_subprogram
-        Children:        DW_CHILDREN_no
-        Attributes:
-          - Attribute:       DW_AT_name
-            Form:            DW_FORM_strp
-          - Attribute:       DW_AT_low_pc
-            Form:            DW_FORM_addr
-          - Attribute:       DW_AT_high_pc
-            Form:            DW_FORM_addr
+      - Table:
+          - Code:            0x00000001
+            Tag:             DW_TAG_compile_unit
+            Children:        DW_CHILDREN_yes
+            Attributes:
+              - Attribute:       DW_AT_name
+                Form:            DW_FORM_strp
+          - Code:            0x00000002
+            Tag:             DW_TAG_subprogram
+            Children:        DW_CHILDREN_no
+            Attributes:
+              - Attribute:       DW_AT_name
+                Form:            DW_FORM_strp
+              - Attribute:       DW_AT_low_pc
+                Form:            DW_FORM_addr
+              - Attribute:       DW_AT_high_pc
+                Form:            DW_FORM_addr
     debug_info:
       - Length:          34
         Version:         4
@@ -2866,26 +2884,27 @@ TEST(DWARFDebugInfo, TestDwarfVerifyElidedDoesntFail) {
       - main
       - elided
     debug_abbrev:
-      - Code:            0x00000001
-        Tag:             DW_TAG_compile_unit
-        Children:        DW_CHILDREN_yes
-        Attributes:
-          - Attribute:       DW_AT_low_pc
-            Form:            DW_FORM_addr
-          - Attribute:       DW_AT_high_pc
-            Form:            DW_FORM_addr
-          - Attribute:       DW_AT_name
-            Form:            DW_FORM_strp
-      - Code:            0x00000002
-        Tag:             DW_TAG_subprogram
-        Children:        DW_CHILDREN_no
-        Attributes:
-          - Attribute:       DW_AT_name
-            Form:            DW_FORM_strp
-          - Attribute:       DW_AT_low_pc
-            Form:            DW_FORM_addr
-          - Attribute:       DW_AT_high_pc
-            Form:            DW_FORM_addr
+      - Table:
+          - Code:            0x00000001
+            Tag:             DW_TAG_compile_unit
+            Children:        DW_CHILDREN_yes
+            Attributes:
+              - Attribute:       DW_AT_low_pc
+                Form:            DW_FORM_addr
+              - Attribute:       DW_AT_high_pc
+                Form:            DW_FORM_addr
+              - Attribute:       DW_AT_name
+                Form:            DW_FORM_strp
+          - Code:            0x00000002
+            Tag:             DW_TAG_subprogram
+            Children:        DW_CHILDREN_no
+            Attributes:
+              - Attribute:       DW_AT_name
+                Form:            DW_FORM_strp
+              - Attribute:       DW_AT_low_pc
+                Form:            DW_FORM_addr
+              - Attribute:       DW_AT_high_pc
+                Form:            DW_FORM_addr
     debug_info:
       - Length:          71
         Version:         4
@@ -2928,26 +2947,27 @@ TEST(DWARFDebugInfo, TestDwarfVerifyNestedFunctions) {
       - main
       - nested
     debug_abbrev:
-      - Code:            0x00000001
-        Tag:             DW_TAG_compile_unit
-        Children:        DW_CHILDREN_yes
-        Attributes:
-          - Attribute:       DW_AT_low_pc
-            Form:            DW_FORM_addr
-          - Attribute:       DW_AT_high_pc
-            Form:            DW_FORM_addr
-          - Attribute:       DW_AT_name
-            Form:            DW_FORM_strp
-      - Code:            0x00000002
-        Tag:             DW_TAG_subprogram
-        Children:        DW_CHILDREN_yes
-        Attributes:
-          - Attribute:       DW_AT_name
-            Form:            DW_FORM_strp
-          - Attribute:       DW_AT_low_pc
-            Form:            DW_FORM_addr
-          - Attribute:       DW_AT_high_pc
-            Form:            DW_FORM_addr
+      - Table:
+          - Code:            0x00000001
+            Tag:             DW_TAG_compile_unit
+            Children:        DW_CHILDREN_yes
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+                Form:            DW_FORM_addr
+              - Attribute:       DW_AT_high_pc
+                Form:            DW_FORM_addr
+              - Attribute:       DW_AT_name
+                Form:            DW_FORM_strp
+          - Code:            0x00000002
+            Tag:             DW_TAG_subprogram
+            Children:        DW_CHILDREN_yes
+            Attributes:
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+                Form:            DW_FORM_strp
+              - Attribute:       DW_AT_low_pc
+                Form:            DW_FORM_addr
+              - Attribute:       DW_AT_high_pc
+                Form:            DW_FORM_addr
     debug_info:
       - Length:          73
         Version:         4