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Debug Info: use createAndAddDIE for newly-created Subprogram DIEs.

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More patches will be submitted to convert "new DIE(" to use createAddAndDIE in
DwarfCompileUnit.cpp. This will simplify implementation of addDIEEntry where
we have to decide between ref4 and ref_addr, because DIEs that can be shared
across CU will be added to a CU already.

Reviewed off-list by Eric.

llvm-svn: 193567
This commit is contained in:
Manman Ren 2013-10-29 00:58:04 +00:00
parent 2eadeecfe9
commit 3ff85b85e8
6 changed files with 27 additions and 23 deletions
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14
lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
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@ -1356,12 +1356,14 @@ DIE *CompileUnit::getOrCreateSubprogramDIE(DISubprogram SP) {
if (SPDie)
return SPDie;
SPDie = new DIE(dwarf::DW_TAG_subprogram);
DISubprogram SPDecl = SP.getFunctionDeclaration();
if (SPDecl.isSubprogram())
// Add subprogram definitions to the CU die directly.
ContextDIE = CUDie.get();
// DW_TAG_inlined_subroutine may refer to this DIE.
insertDIE(SP, SPDie);
SPDie = createAndAddDIE(dwarf::DW_TAG_subprogram, *ContextDIE, SP);
DISubprogram SPDecl = SP.getFunctionDeclaration();
DIE *DeclDie = NULL;
if (SPDecl.isSubprogram())
DeclDie = getOrCreateSubprogramDIE(SPDecl);
@ -1375,15 +1377,9 @@ DIE *CompileUnit::getOrCreateSubprogramDIE(DISubprogram SP) {
// Refer function declaration directly.
addDIEEntry(SPDie, dwarf::DW_AT_specification, DeclDie);
// Add subprogram definitions to the CU die directly.
addDie(SPDie);
return SPDie;
}
// Add to context owner.
ContextDIE->addChild(SPDie);
// Add the linkage name if we have one.
StringRef LinkageName = SP.getLinkageName();
if (!LinkageName.empty())

2
test/DebugInfo/X86/DW_AT_object_pointer.ll
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@ -6,7 +6,7 @@
; CHECK: DW_TAG
; CHECK: DW_TAG_class_type
; CHECK: DW_AT_object_pointer [DW_FORM_ref4] (cu + 0x{{[0-9a-f]*}} => {[[PARAM:0x[0-9a-f]*]]})
; CHECK: [[PARAM]]: DW_TAG_formal_parameter [13]
; CHECK: [[PARAM]]: DW_TAG_formal_parameter
; CHECK-NEXT: DW_AT_name [DW_FORM_strp] ( .debug_str[0x{{[0-9a-f]*}}] = "this")
%class.A = type { i32 }

6
test/DebugInfo/X86/DW_AT_specification.ll
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@ -3,8 +3,10 @@
; test that the DW_AT_specification is a back edge in the file.
; CHECK: 0x0000[[OFFSET:[0-9a-f]*]]: DW_TAG_subprogram [7] *
; CHECK: DW_AT_specification [DW_FORM_ref4] (cu + 0x[[OFFSET]] => {0x0000[[OFFSET]]})
; CHECK: DW_TAG_subprogram [{{[0-9]+}}] *
; CHECK: DW_AT_specification [DW_FORM_ref4] (cu + 0x[[OFFSET:[0-9a-f]*]] => {0x0000[[OFFSET]]})
; CHECK: 0x0000[[OFFSET]]: DW_TAG_subprogram [{{[0-9]+}}] *
; CHECK: DW_AT_name [DW_FORM_strp] ( .debug_str[0x{{[0-9a-f]*}}] = "bar")
@_ZZN3foo3barEvE1x = constant i32 0, align 4

13
test/DebugInfo/X86/elf-names.ll
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@ -4,11 +4,14 @@
; CHECK: 0x0000000b: DW_TAG_compile_unit
; CHECK: DW_AT_name [DW_FORM_strp] ( .debug_str[0x00000035] = "foo.cpp")
; CHECK: 0x0000003c: DW_TAG_class_type
; CHECK: DW_AT_name [DW_FORM_strp] ( .debug_str[0x0000006d] = "D")
; CHECK: 0x00000044: DW_TAG_member
; CHECK: DW_AT_name [DW_FORM_strp] ( .debug_str[0x0000005d] = "c1")
; CHECK: DW_AT_artificial [DW_FORM_flag_present] (true)
; CHECK: 0x{{[0-9a-f]+}}: DW_TAG_class_type
; CHECK: DW_AT_name [DW_FORM_strp] ( .debug_str[0x{{[0-9a-f]+}}] = "D")
; CHECK: 0x{{[0-9a-f]+}}: DW_TAG_member
; CHECK: DW_AT_name [DW_FORM_strp] ( .debug_str[0x{{[0-9a-f]+}}] = "c1")
; CHECK: DW_TAG_subprogram
; CHECK-NEXT: DW_AT_name [DW_FORM_strp] ( .debug_str[0x{{[0-9a-f]+}}] = "D")
; CHECK: DW_TAG_formal_parameter
; CHECK: DW_AT_artificial [DW_FORM_flag_present] (true)
; CHECK-DIS: [artificial]

7
test/DebugInfo/X86/pr11300.ll
View File

@ -3,8 +3,11 @@
; test that the DW_AT_specification is a back edge in the file.
; CHECK: [[BACK:0x[0-9a-f]*]]: DW_TAG_subprogram [6]
; CHECK: DW_AT_specification [DW_FORM_ref4] (cu + {{.*}} => {[[BACK]]})
; CHECK: DW_TAG_subprogram
; CHECK: DW_AT_name [DW_FORM_strp] ( .debug_str[0x{{[0-9a-f]*}}] = "zed")
; CHECK: DW_TAG_subprogram
; CHECK-NEXT: DW_AT_specification [DW_FORM_ref4] (cu + {{.*}} => {[[BACK:0x[0-9a-f]*]]})
; CHECK: [[BACK]]: DW_TAG_subprogram
%struct.foo = type { i8 }

8
test/DebugInfo/X86/template.ll
View File

@ -17,9 +17,6 @@
; CHECK-NOT: NULL
; CHECK: DW_TAG_template_type_parameter
; CHECK: [[INTPTR:0x[0-9a-f]*]]:{{ *}}DW_TAG_pointer_type
; CHECK-NEXT: DW_AT_type{{.*}} => {[[INT]]}
; CHECK: DW_AT_name{{.*}}"func<3, &glbl, y_impl, 1, 2>"
; CHECK-NOT: NULL
; CHECK: DW_TAG_template_value_parameter
@ -33,7 +30,7 @@
; CHECK-NEXT: DW_AT_const_value [DW_FORM_sdata]{{.*}}(3)
; CHECK: DW_TAG_template_value_parameter
; CHECK-NEXT: DW_AT_type{{.*}}=> {[[INTPTR]]}
; CHECK-NEXT: DW_AT_type{{.*}}=> {[[INTPTR:0x[0-9a-f]*]]}
; The address of the global 'glbl', followed by DW_OP_stack_value (9f), to use
; the value immediately, rather than indirecting through the address.
@ -56,6 +53,9 @@
; CHECK-NEXT: DW_AT_type{{.*}}=> {[[INT]]}
; CHECK-NEXT: DW_AT_const_value [DW_FORM_sdata]{{.*}}(2)
; CHECK: [[INTPTR]]:{{ *}}DW_TAG_pointer_type
; CHECK-NEXT: DW_AT_type{{.*}} => {[[INT]]}
%"struct.y_impl<int>::nested" = type { i8 }
@glbl = global i32 0, align 4