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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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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102394 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel
2010-04-26 22:54:28 +00:00
parent 948c8a3e3d
commit 5098da0a7e
2 changed files with 4 additions and 4 deletions
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6
lib/CodeGen/AsmPrinter/DwarfDebug.cpp
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@ -1734,9 +1734,9 @@ void DwarfDebug::constructCompileUnit(MDNode *N) {
addUInt(Die, dwarf::DW_AT_language, dwarf::DW_FORM_data1, addUInt(Die, dwarf::DW_AT_language, dwarf::DW_FORM_data1,
DIUnit.getLanguage()); DIUnit.getLanguage());
addString(Die, dwarf::DW_AT_name, dwarf::DW_FORM_string, FN); addString(Die, dwarf::DW_AT_name, dwarf::DW_FORM_string, FN);
addLabel(Die, dwarf::DW_AT_low_pc, dwarf::DW_FORM_addr, TextSectionSym); // Use DW_AT_entry_pc instead of DW_AT_low_pc/DW_AT_high_pc pair. This
addLabel(Die, dwarf::DW_AT_high_pc, dwarf::DW_FORM_addr, // simplifies debug range entries.
Asm->GetTempSymbol("text_end")); 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 // 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 in debug_line section. It is always zero when only one
// compile unit is emitted in one object file. // 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] @i = global i32 1 ; <i32*> [#uses=0]
!llvm.dbg.gv = !{!0} !llvm.dbg.gv = !{!0}