[llvm] r222217 - Allow DwarfCompileUnit::constructImportedEntityDIE to instanciate a GlobalVariable DIE.
Frederic Riss
friss at apple.com
Mon Nov 17 18:46:11 PST 2014
Author: friss
Date: Mon Nov 17 20:46:11 2014
New Revision: 222217
URL: http://llvm.org/viewvc/llvm-project?rev=222217&view=rev
Log:
Allow DwarfCompileUnit::constructImportedEntityDIE to instanciate a GlobalVariable DIE.
Usually global variables are in a retain list and instanciated before
any call to constructImportedEntityDIE is made. This isn't true for
forward declarations though.
The testcase for this change is generated by a clang patched to emit
such forward declarations (patch at http://reviews.llvm.org/D6173
which will land soon). The updated testcase tests more than just
global variables, it now tests every type of 'using' clause we
support.
Modified:
llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
llvm/trunk/test/DebugInfo/namespace.ll
Modified: llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp?rev=222217&r1=222216&r2=222217&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp (original)
+++ llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp Mon Nov 17 20:46:11 2014
@@ -646,6 +646,8 @@ DwarfCompileUnit::constructImportedEntit
EntityDie = getOrCreateSubprogramDIE(DISubprogram(Entity));
else if (Entity.isType())
EntityDie = getOrCreateTypeDIE(DIType(Entity));
+ else if (Entity.isGlobalVariable())
+ EntityDie = getOrCreateGlobalVariableDIE(DIGlobalVariable(Entity));
else
EntityDie = getDIE(Entity);
assert(EntityDie);
Modified: llvm/trunk/test/DebugInfo/namespace.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/namespace.ll?rev=222217&r1=222216&r2=222217&view=diff
==============================================================================
--- llvm/trunk/test/DebugInfo/namespace.ll (original)
+++ llvm/trunk/test/DebugInfo/namespace.ll Mon Nov 17 20:46:11 2014
@@ -6,7 +6,7 @@
; CHECK: [[NS1:0x[0-9a-f]*]]:{{ *}}DW_TAG_namespace
; CHECK-NEXT: DW_AT_name{{.*}} = "A"
; CHECK-NEXT: DW_AT_decl_file{{.*}}([[F1:".*debug-info-namespace.cpp"]])
-; CHECK-NEXT: DW_AT_decl_line{{.*}}(3)
+; CHECK-NEXT: DW_AT_decl_line{{.*}}(5)
; CHECK-NOT: NULL
; CHECK: [[NS2:0x[0-9a-f]*]]:{{ *}}DW_TAG_namespace
; CHECK-NEXT: DW_AT_name{{.*}} = "B"
@@ -15,6 +15,8 @@
; CHECK-NOT: NULL
; CHECK: [[I:0x[0-9a-f]*]]:{{ *}}DW_TAG_variable
; CHECK-NEXT: DW_AT_name{{.*}}= "i"
+; CHECK: [[VAR_FWD:0x[0-9a-f]*]]:{{ *}}DW_TAG_variable
+; CHECK-NEXT: DW_AT_name{{.*}}= "var_fwd"
; CHECK-NOT: NULL
; CHECK: [[FOO:0x[0-9a-f]*]]:{{ *}}DW_TAG_structure_type
; CHECK-NEXT: DW_AT_name{{.*}}= "foo"
@@ -22,12 +24,28 @@
; CHECK-NOT: NULL
; CHECK: [[BAR:0x[0-9a-f]*]]:{{ *}}DW_TAG_structure_type
; CHECK-NEXT: DW_AT_name{{.*}}= "bar"
-; CHECK: NULL
; CHECK: [[FUNC1:.*]]: DW_TAG_subprogram
; CHECK-NOT: DW_TAG
; CHECK: DW_AT_MIPS_linkage_name
; CHECK-NOT: DW_TAG
; CHECK: DW_AT_name{{.*}}= "f1"
+; CHECK: [[BAZ:0x[0-9a-f]*]]:{{.*}}DW_TAG_typedef
+; CHECK-NOT: DW_TAG
+; CHECK: DW_AT_name{{.*}}= "baz"
+; CHECK: [[VAR_DECL:0x[0-9a-f]*]]:{{.*}}DW_TAG_variable
+; CHECK-NOT: DW_TAG
+; CHECK: DW_AT_name{{.*}}= "var_decl"
+; CHECK-NOT: DW_TAG
+; CHECK: DW_AT_declaration
+; CHECK: [[FUNC_DECL:0x[0-9a-f]*]]:{{.*}}DW_TAG_subprogram
+; CHECK-NOT: DW_TAG
+; CHECK: DW_AT_name{{.*}}= "func_decl"
+; CHECK-NOT: DW_TAG
+; CHECK: DW_AT_declaration
+; CHECK: [[FUNC_FWD:0x[0-9a-f]*]]:{{.*}}DW_TAG_subprogram
+; CHECK-NOT: DW_TAG
+; CHECK: DW_AT_name{{.*}}= "func_fwd"
+; CHECK-NOT: DW_AT_declaration
; CHECK: DW_TAG_subprogram
; CHECK-NOT: DW_TAG
; CHECK: DW_AT_MIPS_linkage_name
@@ -40,7 +58,7 @@
; This is a bug, it should be in F2 but it inherits the file from its
; enclosing scope
; CHECK-NEXT: DW_AT_decl_file{{.*}}([[F1]])
-; CHECK-NEXT: DW_AT_decl_line{{.*}}(8)
+; CHECK-NEXT: DW_AT_decl_line{{.*}}(15)
; CHECK-NEXT: DW_AT_import{{.*}}=> {[[NS2]]})
; CHECK: NULL
; CHECK-NOT: NULL
@@ -48,7 +66,7 @@
; CHECK: DW_TAG_imported_module
; Same bug as above, this should be F2, not F1
; CHECK-NEXT: DW_AT_decl_file{{.*}}([[F1]])
-; CHECK-NEXT: DW_AT_decl_line{{.*}}(11)
+; CHECK-NEXT: DW_AT_decl_line{{.*}}(18)
; CHECK-NEXT: DW_AT_import{{.*}}=> {[[NS1]]})
; CHECK-NOT: NULL
@@ -60,67 +78,101 @@
; CHECK-NOT: NULL
; CHECK: DW_TAG_imported_module
; CHECK-NEXT: DW_AT_decl_file{{.*}}([[F2]])
-; CHECK-NEXT: DW_AT_decl_line{{.*}}(18)
+; CHECK-NEXT: DW_AT_decl_line{{.*}}(26)
; CHECK-NEXT: DW_AT_import{{.*}}=> {[[NS1]]})
; CHECK-NOT: NULL
; CHECK: DW_TAG_imported_declaration
; CHECK-NEXT: DW_AT_decl_file{{.*}}([[F2]])
-; CHECK-NEXT: DW_AT_decl_line{{.*}}(19)
+; CHECK-NEXT: DW_AT_decl_line{{.*}}(27)
; CHECK-NEXT: DW_AT_import{{.*}}=> {[[FOO]]})
; CHECK-NOT: NULL
; CHECK: DW_TAG_imported_declaration
; CHECK-NEXT: DW_AT_decl_file{{.*}}([[F2]])
-; CHECK-NEXT: DW_AT_decl_line{{.*}}(20)
+; CHECK-NEXT: DW_AT_decl_line{{.*}}(28)
; CHECK-NEXT: DW_AT_import{{.*}}=> {[[BAR]]})
; CHECK-NOT: NULL
; CHECK: DW_TAG_imported_declaration
; CHECK-NEXT: DW_AT_decl_file{{.*}}([[F2]])
-; CHECK-NEXT: DW_AT_decl_line{{.*}}(21)
+; CHECK-NEXT: DW_AT_decl_line{{.*}}(29)
; CHECK-NEXT: DW_AT_import{{.*}}=> {[[FUNC1]]})
; CHECK-NOT: NULL
; CHECK: DW_TAG_imported_declaration
; CHECK-NEXT: DW_AT_decl_file{{.*}}([[F2]])
-; CHECK-NEXT: DW_AT_decl_line{{.*}}(22)
+; CHECK-NEXT: DW_AT_decl_line{{.*}}(30)
; CHECK-NEXT: DW_AT_import{{.*}}=> {[[I]]})
; CHECK-NOT: NULL
+; CHECK: DW_TAG_imported_declaration
+; CHECK-NEXT: DW_AT_decl_file{{.*}}([[F2]])
+; CHECK-NEXT: DW_AT_decl_line{{.*}}(31)
+; CHECK-NEXT: DW_AT_import{{.*}}=> {[[BAZ]]})
+; CHECK-NOT: NULL
; CHECK: [[X:0x[0-9a-f]*]]:{{ *}}DW_TAG_imported_declaration
; CHECK-NEXT: DW_AT_decl_file{{.*}}([[F2]])
-; CHECK-NEXT: DW_AT_decl_line{{.*}}(24)
+; CHECK-NEXT: DW_AT_decl_line{{.*}}(32)
; CHECK-NEXT: DW_AT_import{{.*}}=> {[[NS1]]})
; CHECK-NEXT: DW_AT_name{{.*}}"X"
; CHECK-NOT: NULL
; CHECK: DW_TAG_imported_declaration
; CHECK-NEXT: DW_AT_decl_file{{.*}}([[F2]])
-; CHECK-NEXT: DW_AT_decl_line{{.*}}(25)
+; CHECK-NEXT: DW_AT_decl_line{{.*}}(33)
; CHECK-NEXT: DW_AT_import{{.*}}=> {[[X]]})
; CHECK-NEXT: DW_AT_name{{.*}}"Y"
; CHECK-NOT: NULL
+; CHECK: DW_TAG_imported_declaration
+; CHECK-NEXT: DW_AT_decl_file{{.*}}([[F2]])
+; CHECK-NEXT: DW_AT_decl_line{{.*}}(34)
+; CHECK-NEXT: DW_AT_import{{.*}}=> {[[VAR_DECL]]})
+; CHECK: DW_TAG_imported_declaration
+; CHECK-NEXT: DW_AT_decl_file{{.*}}([[F2]])
+; CHECK-NEXT: DW_AT_decl_line{{.*}}(35)
+; CHECK-NEXT: DW_AT_import{{.*}}=> {[[FUNC_DECL]]})
+; CHECK: DW_TAG_imported_declaration
+; CHECK-NEXT: DW_AT_decl_file{{.*}}([[F2]])
+; CHECK-NEXT: DW_AT_decl_line{{.*}}(36)
+; CHECK-NEXT: DW_AT_import{{.*}}=> {[[VAR_FWD]]})
+; CHECK: DW_TAG_imported_declaration
+; CHECK-NEXT: DW_AT_decl_file{{.*}}([[F2]])
+; CHECK-NEXT: DW_AT_decl_line{{.*}}(37)
+; CHECK-NEXT: DW_AT_import{{.*}}=> {[[FUNC_FWD]]})
+
; CHECK: DW_TAG_lexical_block
; CHECK-NOT: NULL
; CHECK: DW_TAG_imported_module
; CHECK-NEXT: DW_AT_decl_file{{.*}}([[F2]])
-; CHECK-NEXT: DW_AT_decl_line{{.*}}(15)
-; CHECK-NEXT: DW_AT_import{{.*}}=> {[[NS2]]})
+; CHECK-NEXT: DW_AT_decl_line{{.*}}(23)
+; CHECK-NEXT: DW_AT_import{{.*}}=>
; CHECK: NULL
; CHECK: NULL
; CHECK: NULL
; IR generated from clang/test/CodeGenCXX/debug-info-namespace.cpp, file paths
; changed to protect the guilty. The C++ source code is:
+; // RUN...
+; // RUN...
+; // RUN...
+;
; namespace A {
; #line 1 "foo.cpp"
; namespace B {
-; int i;
-; void f1() { }
+; extern int i;
+; int f1() { return 0; }
; void f1(int) { }
; struct foo;
; struct bar { };
+; typedef bar baz;
+; extern int var_decl;
+; void func_decl(void);
+; extern int var_fwd;
+; void func_fwd(void);
+; }
; }
+; namespace A {
; using namespace B;
; }
;
; using namespace A;
-;
+; namespace E = A;
+; int B::i = f1();
; int func(bool b) {
; if (b) {
; using namespace A::B;
@@ -131,123 +183,184 @@
; using B::bar;
; using B::f1;
; using B::i;
-; bar x;
+; using B::baz;
; namespace X = A;
; namespace Y = X;
+; using B::var_decl;
+; using B::func_decl;
+; using B::var_fwd;
+; using B::func_fwd;
; return i + X::B::i + Y::B::i;
; }
-
-%"struct.A::B::bar" = type { i8 }
+;
+; namespace A {
+; using B::i;
+; namespace B {
+; int var_fwd = i;
+; }
+; }
+; void B::func_fwd() {}
@_ZN1A1B1iE = global i32 0, align 4
+ at _ZN1A1B7var_fwdE = global i32 0, align 4
+ at llvm.global_ctors = appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 65535, void ()* @_GLOBAL__sub_I_debug_info_namespace.cpp, i8* null }]
-; Function Attrs: nounwind uwtable
-define void @_ZN1A1B2f1Ev() #0 {
+; Function Attrs: nounwind ssp uwtable
+define i32 @_ZN1A1B2f1Ev() #0 {
entry:
- ret void, !dbg !41
+ ret i32 0, !dbg !60
}
-; Function Attrs: nounwind uwtable
+; Function Attrs: nounwind ssp uwtable
define void @_ZN1A1B2f1Ei(i32) #0 {
entry:
%.addr = alloca i32, align 4
store i32 %0, i32* %.addr, align 4
- call void @llvm.dbg.declare(metadata !{i32* %.addr}, metadata !42, metadata !{metadata !"0x102"}), !dbg !43
- ret void, !dbg !43
+ call void @llvm.dbg.declare(metadata !{i32* %.addr}, metadata !61, metadata !62), !dbg !63
+ ret void, !dbg !64
}
; Function Attrs: nounwind readnone
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
-; Function Attrs: nounwind uwtable
+define internal void @__cxx_global_var_init() section "__TEXT,__StaticInit,regular,pure_instructions" {
+entry:
+ %call = call i32 @_ZN1A1B2f1Ev(), !dbg !65
+ store i32 %call, i32* @_ZN1A1B1iE, align 4, !dbg !65
+ ret void, !dbg !65
+}
+
+; Function Attrs: nounwind ssp uwtable
define i32 @_Z4funcb(i1 zeroext %b) #0 {
entry:
%retval = alloca i32, align 4
%b.addr = alloca i8, align 1
- %x = alloca %"struct.A::B::bar", align 1
%frombool = zext i1 %b to i8
store i8 %frombool, i8* %b.addr, align 1
- call void @llvm.dbg.declare(metadata !{i8* %b.addr}, metadata !44, metadata !{metadata !"0x102"}), !dbg !45
- %0 = load i8* %b.addr, align 1, !dbg !46
- %tobool = trunc i8 %0 to i1, !dbg !46
- br i1 %tobool, label %if.then, label %if.end, !dbg !46
+ call void @llvm.dbg.declare(metadata !{i8* %b.addr}, metadata !66, metadata !62), !dbg !67
+ %0 = load i8* %b.addr, align 1, !dbg !68
+ %tobool = trunc i8 %0 to i1, !dbg !68
+ br i1 %tobool, label %if.then, label %if.end, !dbg !68
if.then: ; preds = %entry
- %1 = load i32* @_ZN1A1B1iE, align 4, !dbg !47
- store i32 %1, i32* %retval, !dbg !47
- br label %return, !dbg !47
+ %1 = load i32* @_ZN1A1B1iE, align 4, !dbg !69
+ store i32 %1, i32* %retval, !dbg !69
+ br label %return, !dbg !69
if.end: ; preds = %entry
- call void @llvm.dbg.declare(metadata !{%"struct.A::B::bar"* %x}, metadata !48, metadata !{metadata !"0x102"}), !dbg !49
- %2 = load i32* @_ZN1A1B1iE, align 4, !dbg !50
- %3 = load i32* @_ZN1A1B1iE, align 4, !dbg !50
- %add = add nsw i32 %2, %3, !dbg !50
- %4 = load i32* @_ZN1A1B1iE, align 4, !dbg !50
- %add1 = add nsw i32 %add, %4, !dbg !50
- store i32 %add1, i32* %retval, !dbg !50
- br label %return, !dbg !50
+ %2 = load i32* @_ZN1A1B1iE, align 4, !dbg !70
+ %3 = load i32* @_ZN1A1B1iE, align 4, !dbg !70
+ %add = add nsw i32 %2, %3, !dbg !70
+ %4 = load i32* @_ZN1A1B1iE, align 4, !dbg !70
+ %add1 = add nsw i32 %add, %4, !dbg !70
+ store i32 %add1, i32* %retval, !dbg !70
+ br label %return, !dbg !70
return: ; preds = %if.end, %if.then
- %5 = load i32* %retval, !dbg !51
- ret i32 %5, !dbg !51
+ %5 = load i32* %retval, !dbg !71
+ ret i32 %5, !dbg !71
+}
+
+define internal void @__cxx_global_var_init1() section "__TEXT,__StaticInit,regular,pure_instructions" {
+entry:
+ %0 = load i32* @_ZN1A1B1iE, align 4, !dbg !72
+ store i32 %0, i32* @_ZN1A1B7var_fwdE, align 4, !dbg !72
+ ret void, !dbg !72
+}
+
+; Function Attrs: nounwind ssp uwtable
+define void @_ZN1A1B8func_fwdEv() #0 {
+entry:
+ ret void, !dbg !73
+}
+
+define internal void @_GLOBAL__sub_I_debug_info_namespace.cpp() section "__TEXT,__StaticInit,regular,pure_instructions" {
+entry:
+ call void @__cxx_global_var_init(), !dbg !74
+ call void @__cxx_global_var_init1(), !dbg !74
+ ret void, !dbg !74
}
-attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }
+attributes #0 = { nounwind ssp uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #1 = { nounwind readnone }
!llvm.dbg.cu = !{!0}
-!llvm.module.flags = !{!52}
+!llvm.module.flags = !{!57, !58}
+!llvm.ident = !{!59}
-!0 = metadata !{metadata !"0x11\004\00clang version 3.4 \000\00\000\00\000", metadata !1, metadata !2, metadata !2, metadata !3, metadata !19, metadata !21} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/blaikie/dev/llvm/build/clang/debug//usr/local/google/home/blaikie/dev/llvm/src/tools/clang/test/CodeGenCXX/debug-info-namespace.cpp] [DW_LANG_C_plus_plus]
-!1 = metadata !{metadata !"/usr/local/google/home/blaikie/dev/llvm/src/tools/clang/test/CodeGenCXX/debug-info-namespace.cpp", metadata !"/usr/local/google/home/blaikie/dev/llvm/build/clang/debug"}
+!0 = metadata !{metadata !"0x11\004\00clang version 3.6.0 \000\00\000\00\001", metadata !1, metadata !2, metadata !3, metadata !9, metadata !30, metadata !33} ; [ DW_TAG_compile_unit ] [/tmp/debug-info-namespace.cpp] [DW_LANG_C_plus_plus]
+!1 = metadata !{metadata !"debug-info-namespace.cpp", metadata !"/tmp"}
!2 = metadata !{}
-!3 = metadata !{metadata !4, metadata !10, metadata !14}
-!4 = metadata !{metadata !"0x2e\00f1\00f1\00_ZN1A1B2f1Ev\003\000\001\000\006\00256\000\003", metadata !5, metadata !6, metadata !8, null, void ()* @_ZN1A1B2f1Ev, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 3] [def] [f1]
-!5 = metadata !{metadata !"foo.cpp", metadata !"/usr/local/google/home/blaikie/dev/llvm/build/clang/debug"}
+!3 = metadata !{metadata !4, metadata !8}
+!4 = metadata !{metadata !"0x13\00foo\005\000\000\000\004\000", metadata !5, metadata !6, null, null, null, null, metadata !"_ZTSN1A1B3fooE"} ; [ DW_TAG_structure_type ] [foo] [line 5, size 0, align 0, offset 0] [decl] [from ]
+!5 = metadata !{metadata !"foo.cpp", metadata !"/tmp"}
!6 = metadata !{metadata !"0x39\00B\001", metadata !5, metadata !7} ; [ DW_TAG_namespace ] [B] [line 1]
-!7 = metadata !{metadata !"0x39\00A\003", metadata !1, null} ; [ DW_TAG_namespace ] [A] [line 3]
-!8 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !9, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!9 = metadata !{null}
-!10 = metadata !{metadata !"0x2e\00f1\00f1\00_ZN1A1B2f1Ei\004\000\001\000\006\00256\000\004", metadata !5, metadata !6, metadata !11, null, void (i32)* @_ZN1A1B2f1Ei, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 4] [def] [f1]
-!11 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !12, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!12 = metadata !{null, metadata !13}
+!7 = metadata !{metadata !"0x39\00A\005", metadata !1, null} ; [ DW_TAG_namespace ] [A] [line 5]
+!8 = metadata !{metadata !"0x13\00bar\006\008\008\000\000\000", metadata !5, metadata !6, null, metadata !2, null, null, metadata !"_ZTSN1A1B3barE"} ; [ DW_TAG_structure_type ] [bar] [line 6, size 8, align 8, offset 0] [def] [from ]
+!9 = metadata !{metadata !10, metadata !14, metadata !17, metadata !21, metadata !25, metadata !26, metadata !27}
+!10 = metadata !{metadata !"0x2e\00f1\00f1\00_ZN1A1B2f1Ev\003\000\001\000\000\00256\000\003", metadata !5, metadata !6, metadata !11, null, i32 ()* @_ZN1A1B2f1Ev, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 3] [def] [f1]
+!11 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", null, null, null, metadata !12, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!12 = metadata !{metadata !13}
!13 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
-!14 = metadata !{metadata !"0x2e\00func\00func\00_Z4funcb\0013\000\001\000\006\00256\000\0013", metadata !5, metadata !15, metadata !16, null, i32 (i1)* @_Z4funcb, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 13] [def] [func]
-!15 = metadata !{metadata !"0x29", metadata !5} ; [ DW_TAG_file_type ] [/usr/local/google/home/blaikie/dev/llvm/build/clang/debug/foo.cpp]
-!16 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !17, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!17 = metadata !{metadata !13, metadata !18}
-!18 = metadata !{metadata !"0x24\00bool\000\008\008\000\000\002", null, null} ; [ DW_TAG_base_type ] [bool] [line 0, size 8, align 8, offset 0, enc DW_ATE_boolean]
-!19 = metadata !{metadata !20}
-!20 = metadata !{metadata !"0x34\00i\00i\00_ZN1A1B1iE\002\000\001", metadata !6, metadata !15, metadata !13, i32* @_ZN1A1B1iE, null} ; [ DW_TAG_variable ] [i] [line 2] [def]
-!21 = metadata !{metadata !22, metadata !23, metadata !24, metadata !26, metadata !27, metadata !29, metadata !37, metadata !38, metadata !39, metadata !40}
-!22 = metadata !{metadata !"0x3a\008\00", metadata !7, metadata !6} ; [ DW_TAG_imported_module ]
-!23 = metadata !{metadata !"0x3a\0011\00", metadata !0, metadata !7} ; [ DW_TAG_imported_module ]
-!24 = metadata !{metadata !"0x3a\0015\00", metadata !25, metadata !6} ; [ DW_TAG_imported_module ]
-!25 = metadata !{metadata !"0xb\0014\000\000", metadata !5, metadata !14} ; [ DW_TAG_lexical_block ] [/usr/local/google/home/blaikie/dev/llvm/build/clang/debug/foo.cpp]
-!26 = metadata !{metadata !"0x3a\0018\00", metadata !14, metadata !7} ; [ DW_TAG_imported_module ]
-!27 = metadata !{metadata !"0x8\0019\00", metadata !14, metadata !28} ; [ DW_TAG_imported_declaration ]
-!28 = metadata !{metadata !"0x13\00foo\005\000\000\000\004\000", metadata !5, metadata !6, null, null, null, null, null} ; [ DW_TAG_structure_type ] [foo] [line 5, size 0, align 0, offset 0] [decl] [from ]
-!29 = metadata !{metadata !"0x8\0020\00", metadata !14, metadata !30} ; [ DW_TAG_imported_declaration ]
-!30 = metadata !{metadata !"0x13\00bar\006\008\008\000\000\000", metadata !5, metadata !6, null, metadata !31, null, null, null} ; [ DW_TAG_structure_type ] [bar] [line 6, size 8, align 8, offset 0] [def] [from ]
-!31 = metadata !{metadata !32}
-!32 = metadata !{metadata !"0x2e\00bar\00bar\00\006\000\000\000\006\00320\000\006", metadata !5, metadata !30, metadata !33, null, null, null, i32 0, metadata !36} ; [ DW_TAG_subprogram ] [line 6] [bar]
-!33 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !34, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!34 = metadata !{null, metadata !35}
-!35 = metadata !{metadata !"0xf\00\000\0064\0064\000\001088", i32 0, null, metadata !30} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from bar]
-!36 = metadata !{i32 786468}
-!37 = metadata !{metadata !"0x8\0021\00", metadata !14, metadata !10} ; [ DW_TAG_imported_declaration ]
-!38 = metadata !{metadata !"0x8\0022\00", metadata !14, metadata !20} ; [ DW_TAG_imported_declaration ]
-!39 = metadata !{metadata !"0x8\0024\00X", metadata !14, metadata !7} ; [ DW_TAG_imported_declaration ]
-!40 = metadata !{metadata !"0x8\0025\00Y", metadata !14, metadata !39} ; [ DW_TAG_imported_declaration ]
-!41 = metadata !{i32 3, i32 0, metadata !4, null}
-!42 = metadata !{metadata !"0x101\00\0016777220\000", metadata !10, metadata !15, metadata !13} ; [ DW_TAG_arg_variable ] [line 4]
-!43 = metadata !{i32 4, i32 0, metadata !10, null}
-!44 = metadata !{metadata !"0x101\00b\0016777229\000", metadata !14, metadata !15, metadata !18} ; [ DW_TAG_arg_variable ] [b] [line 13]
-!45 = metadata !{i32 13, i32 0, metadata !14, null}
-!46 = metadata !{i32 14, i32 0, metadata !14, null}
-!47 = metadata !{i32 16, i32 0, metadata !25, null}
-!48 = metadata !{metadata !"0x100\00x\0023\000", metadata !14, metadata !15, metadata !30} ; [ DW_TAG_auto_variable ] [x] [line 23]
-!49 = metadata !{i32 23, i32 0, metadata !14, null}
-!50 = metadata !{i32 26, i32 0, metadata !14, null}
-!51 = metadata !{i32 27, i32 0, metadata !14, null}
-!52 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
+!14 = metadata !{metadata !"0x2e\00f1\00f1\00_ZN1A1B2f1Ei\004\000\001\000\000\00256\000\004", metadata !5, metadata !6, metadata !15, null, void (i32)* @_ZN1A1B2f1Ei, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 4] [def] [f1]
+!15 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", null, null, null, metadata !16, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!16 = metadata !{null, metadata !13}
+!17 = metadata !{metadata !"0x2e\00__cxx_global_var_init\00__cxx_global_var_init\00\0020\001\001\000\000\00256\000\0020", metadata !5, metadata !18, metadata !19, null, void ()* @__cxx_global_var_init, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 20] [local] [def] [__cxx_global_var_init]
+!18 = metadata !{metadata !"0x29", metadata !5} ; [ DW_TAG_file_type ] [/tmp/foo.cpp]
+!19 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", null, null, null, metadata !20, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!20 = metadata !{null}
+!21 = metadata !{metadata !"0x2e\00func\00func\00_Z4funcb\0021\000\001\000\000\00256\000\0021", metadata !5, metadata !18, metadata !22, null, i32 (i1)* @_Z4funcb, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 21] [def] [func]
+!22 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", null, null, null, metadata !23, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!23 = metadata !{metadata !13, metadata !24}
+!24 = metadata !{metadata !"0x24\00bool\000\008\008\000\000\002", null, null} ; [ DW_TAG_base_type ] [bool] [line 0, size 8, align 8, offset 0, enc DW_ATE_boolean]
+!25 = metadata !{metadata !"0x2e\00__cxx_global_var_init1\00__cxx_global_var_init1\00\0044\001\001\000\000\00256\000\0044", metadata !5, metadata !18, metadata !19, null, void ()* @__cxx_global_var_init1, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 44] [local] [def] [__cxx_global_var_init1]
+!26 = metadata !{metadata !"0x2e\00func_fwd\00func_fwd\00_ZN1A1B8func_fwdEv\0047\000\001\000\000\00256\000\0047", metadata !5, metadata !6, metadata !19, null, void ()* @_ZN1A1B8func_fwdEv, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 47] [def] [func_fwd]
+!27 = metadata !{metadata !"0x2e\00\00\00_GLOBAL__sub_I_debug_info_namespace.cpp\000\001\001\000\000\0064\000\000", metadata !1, metadata !28, metadata !29, null, void ()* @_GLOBAL__sub_I_debug_info_namespace.cpp, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 0] [local] [def]
+!28 = metadata !{metadata !"0x29", metadata !1} ; [ DW_TAG_file_type ] [/tmp/debug-info-namespace.cpp]
+!29 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", null, null, null, metadata !2, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!30 = metadata !{metadata !31, metadata !32}
+!31 = metadata !{metadata !"0x34\00i\00i\00_ZN1A1B1iE\0020\000\001", metadata !6, metadata !18, metadata !13, i32* @_ZN1A1B1iE, null} ; [ DW_TAG_variable ] [i] [line 20] [def]
+!32 = metadata !{metadata !"0x34\00var_fwd\00var_fwd\00_ZN1A1B7var_fwdE\0044\000\001", metadata !6, metadata !18, metadata !13, i32* @_ZN1A1B7var_fwdE, null} ; [ DW_TAG_variable ] [var_fwd] [line 44] [def]
+!33 = metadata !{metadata !34, metadata !35, metadata !36, metadata !37, metadata !40, metadata !41, metadata !42, metadata !43, metadata !44, metadata !45, metadata !47, metadata !48, metadata !49, metadata !51, metadata !54, metadata !55, metadata !56}
+!34 = metadata !{metadata !"0x3a\0015\00", metadata !7, metadata !6} ; [ DW_TAG_imported_module ]
+!35 = metadata !{metadata !"0x3a\0018\00", metadata !0, metadata !7} ; [ DW_TAG_imported_module ]
+!36 = metadata !{metadata !"0x8\0019\00E", metadata !0, metadata !7} ; [ DW_TAG_imported_declaration ]
+!37 = metadata !{metadata !"0x3a\0023\00", metadata !38, metadata !6} ; [ DW_TAG_imported_module ]
+!38 = metadata !{metadata !"0xb\0022\0010\001", metadata !5, metadata !39} ; [ DW_TAG_lexical_block ] [/tmp/foo.cpp]
+!39 = metadata !{metadata !"0xb\0022\007\000", metadata !5, metadata !21} ; [ DW_TAG_lexical_block ] [/tmp/foo.cpp]
+!40 = metadata !{metadata !"0x3a\0026\00", metadata !21, metadata !7} ; [ DW_TAG_imported_module ]
+!41 = metadata !{metadata !"0x8\0027\00", metadata !21, metadata !"_ZTSN1A1B3fooE"} ; [ DW_TAG_imported_declaration ]
+!42 = metadata !{metadata !"0x8\0028\00", metadata !21, metadata !"_ZTSN1A1B3barE"} ; [ DW_TAG_imported_declaration ]
+!43 = metadata !{metadata !"0x8\0029\00", metadata !21, metadata !14} ; [ DW_TAG_imported_declaration ]
+!44 = metadata !{metadata !"0x8\0030\00", metadata !21, metadata !31} ; [ DW_TAG_imported_declaration ]
+!45 = metadata !{metadata !"0x8\0031\00", metadata !21, metadata !46} ; [ DW_TAG_imported_declaration ]
+!46 = metadata !{metadata !"0x16\00baz\007\000\000\000\000", metadata !5, metadata !6, metadata !"_ZTSN1A1B3barE"} ; [ DW_TAG_typedef ] [baz] [line 7, size 0, align 0, offset 0] [from _ZTSN1A1B3barE]
+!47 = metadata !{metadata !"0x8\0032\00X", metadata !21, metadata !7} ; [ DW_TAG_imported_declaration ]
+!48 = metadata !{metadata !"0x8\0033\00Y", metadata !21, metadata !47} ; [ DW_TAG_imported_declaration ]
+!49 = metadata !{metadata !"0x8\0034\00", metadata !21, metadata !50} ; [ DW_TAG_imported_declaration ]
+!50 = metadata !{metadata !"0x34\00var_decl\00var_decl\00_ZN1A1B8var_declE\008\000\000", metadata !6, metadata !18, metadata !13, null, null} ; [ DW_TAG_variable ] [var_decl] [line 8]
+!51 = metadata !{metadata !"0x8\0035\00", metadata !21, metadata !52} ; [ DW_TAG_imported_declaration ]
+!52 = metadata !{metadata !"0x2e\00func_decl\00func_decl\00_ZN1A1B9func_declEv\009\000\000\000\000\00256\000\000", metadata !5, metadata !6, metadata !19, null, null, null, null, metadata !53} ; [ DW_TAG_subprogram ] [line 9] [scope 0] [func_decl]
+!53 = metadata !{metadata !"0x24"}
+!54 = metadata !{metadata !"0x8\0036\00", metadata !21, metadata !32} ; [ DW_TAG_imported_declaration ]
+!55 = metadata !{metadata !"0x8\0037\00", metadata !21, metadata !26} ; [ DW_TAG_imported_declaration ]
+!56 = metadata !{metadata !"0x8\0042\00", metadata !7, metadata !31} ; [ DW_TAG_imported_declaration ]
+!57 = metadata !{i32 2, metadata !"Dwarf Version", i32 2}
+!58 = metadata !{i32 2, metadata !"Debug Info Version", i32 2}
+!59 = metadata !{metadata !"clang version 3.6.0 "}
+!60 = metadata !{i32 3, i32 12, metadata !10, null}
+!61 = metadata !{metadata !"0x101\00\0016777220\000", metadata !14, metadata !18, metadata !13} ; [ DW_TAG_arg_variable ] [line 4]
+!62 = metadata !{metadata !"0x102"} ; [ DW_TAG_expression ]
+!63 = metadata !{i32 4, i32 12, metadata !14, null}
+!64 = metadata !{i32 4, i32 16, metadata !14, null}
+!65 = metadata !{i32 20, i32 12, metadata !17, null}
+!66 = metadata !{metadata !"0x101\00b\0016777237\000", metadata !21, metadata !18, metadata !24} ; [ DW_TAG_arg_variable ] [b] [line 21]
+!67 = metadata !{i32 21, i32 15, metadata !21, null}
+!68 = metadata !{i32 22, i32 7, metadata !21, null}
+!69 = metadata !{i32 24, i32 5, metadata !38, null}
+!70 = metadata !{i32 38, i32 3, metadata !21, null}
+!71 = metadata !{i32 39, i32 1, metadata !21, null}
+!72 = metadata !{i32 44, i32 15, metadata !25, null}
+!73 = metadata !{i32 47, i32 21, metadata !26, null}
+!74 = metadata !{i32 0, i32 0, metadata !75, null}
+!75 = metadata !{metadata !"0xb\000", metadata !5, metadata !27} ; [ DW_TAG_lexical_block ] [/tmp/foo.cpp]
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