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Appropriately mark fowrad decls.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62625 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel 2009-01-20 22:27:02 +00:00
parent eeb90e3094
commit 2a574669f3
3 changed files with 18 additions and 12 deletions
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10
include/llvm/Analysis/DebugInfo.h
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@ -129,6 +129,13 @@ namespace llvm {
/// FIXME: Types should be factored much better so that CV qualifiers and /// FIXME: Types should be factored much better so that CV qualifiers and
/// others do not require a huge and empty descriptor full of zeros. /// others do not require a huge and empty descriptor full of zeros.
class DIType : public DIDescriptor { class DIType : public DIDescriptor {
public:
enum {
FlagPrivate = 1 << 0,
FlagProtected = 1 << 1,
FlagFwdDecl = 1 << 2
};
protected: protected:
DIType(GlobalVariable *GV, unsigned Tag) : DIDescriptor(GV, Tag) {} DIType(GlobalVariable *GV, unsigned Tag) : DIDescriptor(GV, Tag) {}
// This ctor is used when the Tag has already been validated by a derived // This ctor is used when the Tag has already been validated by a derived
@ -167,6 +174,9 @@ namespace llvm {
// carry this is just plain insane. // carry this is just plain insane.
uint64_t getOffsetInBits() const { return getUInt64Field(7); } uint64_t getOffsetInBits() const { return getUInt64Field(7); }
unsigned getFlags() const { return getUnsignedField(8); } unsigned getFlags() const { return getUnsignedField(8); }
bool isPrivate() const { return (getFlags() & FlagPrivate) != 0; }
bool isProtected() const { return (getFlags() & FlagProtected) != 0; }
bool isForwardDecl() const { return (getFlags() & FlagFwdDecl) != 0; }
virtual std::string getFilename() const { virtual std::string getFilename() const {
assert (0 && "Invalid DIDescriptor"); assert (0 && "Invalid DIDescriptor");

19
lib/CodeGen/AsmPrinter/DwarfWriter.cpp
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@ -1820,19 +1820,16 @@ private:
if (Size) if (Size)
AddUInt(&Buffer, DW_AT_byte_size, 0, Size); AddUInt(&Buffer, DW_AT_byte_size, 0, Size);
else { else {
// Add zero size even if it is not a forward declaration. // Add zero size if it is not a forward declaration.
// FIXME - Enable this. if (CTy.isForwardDecl())
// if (!CTy.isDefinition()) AddUInt(&Buffer, DW_AT_declaration, DW_FORM_flag, 1);
// AddUInt(&Buffer, DW_AT_declaration, DW_FORM_flag, 1); else
// else AddUInt(&Buffer, DW_AT_byte_size, 0, 0);
// AddUInt(&Buffer, DW_AT_byte_size, 0, 0);
} }
// Add source line info if available and TyDesc is not a forward // Add source line info if available.
// declaration. if (!CTy.isForwardDecl())
// FIXME - Enable this. AddSourceLine(&Buffer, &CTy);
// if (CTy.isForwardDecl())
// AddSourceLine(&Buffer, *CTy);
} }
// ConstructSubrangeDIE - Construct subrange DIE from DISubrange. // ConstructSubrangeDIE - Construct subrange DIE from DISubrange.

1
test/DebugInfo/forwardDecl.ll
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@ -1,5 +1,4 @@
; RUN: llvm-as < %s | llc | %prcontext ST 1 | grep 0x1 | count 1 ; RUN: llvm-as < %s | llc | %prcontext ST 1 | grep 0x1 | count 1
; XFAIL: *
target triple = "i386-apple-darwin9.6" target triple = "i386-apple-darwin9.6"
%llvm.dbg.anchor.type = type { i32, i32 } %llvm.dbg.anchor.type = type { i32, i32 }