[llvm-commits] [llvm] r102394 - in /llvm/trunk: lib/CodeGen/AsmPrinter/DwarfDebug.cpp test/DebugInfo/2010-03-22-CU-HighLow.ll test/DebugInfo/2010-04-25-CU-entry_pc.ll

[Devang Patel]

Author: dpatel
Date: Mon Apr 26 17:54:28 2010
New Revision: 102394

URL: http://llvm.org/viewvc/llvm-project?rev=102394&view=rev
Log:
Use DW_AT_entry_pc instead of DW_AT_low_pc/DW_AT_high_pc pair. This simplifies debug range entries.

Added:
    llvm/trunk/test/DebugInfo/2010-04-25-CU-entry_pc.ll
Removed:
    llvm/trunk/test/DebugInfo/2010-03-22-CU-HighLow.ll
Modified:
    llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp

Modified: llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp?rev=102394&r1=102393&r2=102394&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp (original)
+++ llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp Mon Apr 26 17:54:28 2010
@@ -1734,9 +1734,9 @@
   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.

Removed: llvm/trunk/test/DebugInfo/2010-03-22-CU-HighLow.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/2010-03-22-CU-HighLow.ll?rev=102393&view=auto
==============================================================================
--- llvm/trunk/test/DebugInfo/2010-03-22-CU-HighLow.ll (original)
+++ llvm/trunk/test/DebugInfo/2010-03-22-CU-HighLow.ll (removed)
@@ -1,9 +0,0 @@
-; RUN: llc < %s | grep low_pc | count 2
- at 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 ]

Added: llvm/trunk/test/DebugInfo/2010-04-25-CU-entry_pc.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/2010-04-25-CU-entry_pc.ll?rev=102394&view=auto
==============================================================================
--- llvm/trunk/test/DebugInfo/2010-04-25-CU-entry_pc.ll (added)
+++ llvm/trunk/test/DebugInfo/2010-04-25-CU-entry_pc.ll Mon Apr 26 17:54:28 2010
@@ -0,0 +1,9 @@
+; RUN: llc < %s | grep entry_pc | count 2
+ at 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 ]