Devang Patel dd9db66882 Each input file is encoded as a separate compile unit in LLVM debugging ... information output. However, many target specific tool chains prefer to encode only one compile unit in an object file. In this situation, the LLVM code generator will include debugging information entities in the compile unit that is marked as main compile unit. The code generator accepts maximum one main compile unit per module. If a module does not contain any main compile unit then the code generator will emit multiple compile units in the output object file. [Part 1] Update DebugInfo APIs to accept optional boolean value while creating DICompileUnit to mark the unit as "main" unit. By defaults all units are considered non-main. Update SourceLevelDebugging.html to document "main" compile unit. Update DebugInfo APIs to not accept and encode separate source file/directory entries while creating various llvm.dbg.* entities. There was a recent, yet to be documented, change to include this additional information so no documentation changes are required here. Update DwarfDebug to handle "main" compile unit. If "main" compile unit is seen then all DIEs are inserted into "main" compile unit. All other compile units are used to find source location for llvm.dbg.* values. If there is not any "main" compile unit then create unique compile unit DIEs for each llvm.dbg.compile_unit. [Part 2] Create separate llvm.dbg.compile_unit for each input file. Mark compile unit create for main_input_filename as "main" compile unit. Use appropriate compile unit, based on source location information collected from the tree node, while creating llvm.dbg.* values using DebugInfo APIs. --- This is Part 1. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63400 91177308-0d34-0410-b5e6-96231b3b80d8		2009-01-30 18:20:31 +00:00
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Analysis	Each input file is encoded as a separate compile unit in LLVM debugging	2009-01-30 18:20:31 +00:00
Archive	Add the private linkage.	2009-01-15 20:18:42 +00:00
AsmParser	Add the private linkage.	2009-01-15 20:18:42 +00:00
Bitcode	use specialized accessor instead of plain getOperand(0)	2009-01-16 18:40:27 +00:00
CodeGen	Each input file is encoded as a separate compile unit in LLVM debugging	2009-01-30 18:20:31 +00:00
Debugger	Removed trailing whitespace from Makefiles.	2009-01-09 16:44:42 +00:00
ExecutionEngine	Add support for deleting a module provider from a JIT in such a way that it does not cause the owned module to be fully materialized.	2009-01-23 19:27:28 +00:00
Linker	Add the private linkage.	2009-01-15 20:18:42 +00:00
Support	Add opposite_of and inverse_opt to support -fno- style options. This	2009-01-30 08:19:46 +00:00
System	Fix windows build, patch by Marius Wachtler!	2009-01-29 18:53:28 +00:00
Target	Fixed the comment. No functionality change.	2009-01-30 09:01:44 +00:00
Transforms	Fix some issues with volatility, move "CanConvertToScalar" check	2009-01-28 20:16:43 +00:00
VMCore	Rename getAnalysisToUpdate to getAnalysisIfAvailable.	2009-01-28 13:14:17 +00:00
Makefile	Removed trailing whitespace from Makefiles.	2009-01-09 16:44:42 +00:00