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Emit DW_AT_low_pc and DW_AT_high_pc attributes for TAG_compile_unit.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99225 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel 2010-03-22 23:11:36 +00:00
parent c94347f641
commit 4a602caf2e
2 changed files with 17 additions and 4 deletions
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12
lib/CodeGen/AsmPrinter/DwarfDebug.cpp
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@ -1656,15 +1656,19 @@ void DwarfDebug::constructCompileUnit(MDNode *N) {
unsigned ID = GetOrCreateSourceID(Dir, FN);
DIE *Die = new DIE(dwarf::DW_TAG_compile_unit);
// DW_AT_stmt_list is a offset of line number information for this
// compile unit in debug_line section. It is always zero when only one
// compile unit is emitted in one object file.
addUInt(Die, dwarf::DW_AT_stmt_list, dwarf::DW_FORM_data4, 0);
addString(Die, dwarf::DW_AT_producer, dwarf::DW_FORM_string,
DIUnit.getProducer());
addUInt(Die, dwarf::DW_AT_language, dwarf::DW_FORM_data1,
DIUnit.getLanguage());
addString(Die, dwarf::DW_AT_name, dwarf::DW_FORM_string, FN);
addLabel(Die, dwarf::DW_AT_low_pc, dwarf::DW_FORM_addr,
getTempLabel("text_begin"));
addLabel(Die, dwarf::DW_AT_high_pc, dwarf::DW_FORM_addr,
getTempLabel("text_end"));
// DW_AT_stmt_list is a offset of line number information for this
// compile unit in debug_line section. It is always zero when only one
// compile unit is emitted in one object file.
addUInt(Die, dwarf::DW_AT_stmt_list, dwarf::DW_FORM_data4, 0);
if (!Dir.empty())
addString(Die, dwarf::DW_AT_comp_dir, dwarf::DW_FORM_string, Dir);

9
test/DebugInfo/2010-03-22-CU-HighLow.ll Normal file
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@ -0,0 +1,9 @@
; RUN: llc < %s | grep low_pc | count 2
@i = global i32 1 ; <i32*> [#uses=0]
!llvm.dbg.gv = !{!0}
!0 = metadata !{i32 524340, i32 0, metadata !1, metadata !"i", metadata !"i", metadata !"", metadata !1, i32 1, metadata !3, i1 false, i1 true, i32* @i} ; [ DW_TAG_variable ]
!1 = metadata !{i32 524329, metadata !"b.c", metadata !"/tmp", metadata !2} ; [ DW_TAG_file_type ]
!2 = metadata !{i32 524305, i32 0, i32 1, metadata !"b.c", metadata !"/tmp", metadata !"4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", i1 true, i1 false, metadata !"", i32 0} ; [ DW_TAG_compile_unit ]
!3 = metadata !{i32 524324, metadata !1, metadata !"int", metadata !1, i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ]