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Use DW_AT_entry_pc instead of DW_AT_low_pc/DW_AT_high_pc pair. This simplifies debug range entries.

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llvm-svn: 102394
This commit is contained in:
Devang Patel 2010-04-26 22:54:28 +00:00
parent 40561dd0ba
commit ac2c76f813
2 changed files with 4 additions and 4 deletions
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6
lib/CodeGen/AsmPrinter/DwarfDebug.cpp
View File

@ -1734,9 +1734,9 @@ void DwarfDebug::constructCompileUnit(MDNode *N) {
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, TextSectionSym);
addLabel(Die, dwarf::DW_AT_high_pc, dwarf::DW_FORM_addr,
Asm->GetTempSymbol("text_end"));
// Use DW_AT_entry_pc instead of DW_AT_low_pc/DW_AT_high_pc pair. This
// simplifies debug range entries.
addUInt(Die, dwarf::DW_AT_entry_pc, dwarf::DW_FORM_data4, 0);
// 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.

2
test/DebugInfo/2010-03-22-CU-HighLow.ll → test/DebugInfo/2010-04-25-CU-entry_pc.ll
View File

@ -1,4 +1,4 @@
; RUN: llc < %s | grep low_pc | count 2
; RUN: llc < %s | grep entry_pc | count 2
@i = global i32 1 ; <i32*> [#uses=0]
!llvm.dbg.gv = !{!0}