Manman Ren 3eabc2adb7 Debug Info: support for DW_FORM_ref_addr. ... To support ref_addr, we calculate the section offset of a DIE (i.e. offset of a DIE from beginning of the debug info section). The Offset field in DIE is currently CU-relative. To calculate the section offset, we add a DebugInfoOffset field in CompileUnit to store the offset of a CU from beginning of the debug info section. We set the value in DwarfUnits::computeSizeAndOffset for each CompileUnit. A helper function DIE::getCompileUnit is added to return the CU DIE that the input DIE belongs to. We also add a map CUDieMap in DwarfDebug to help finding the CU for a given CU DIE. For a cross-referenced DIE, we first find the CU DIE it belongs to with getCompileUnit, then we use CUDieMap to get the corresponding CU for the CU DIE. Adding the section offset of the CU with the CU-relative offset of a DIE gives us the seciton offset of the DIE. We correctly emit ref_addr with relocation using EmitLabelPlusOffset when doesDwarfUseRelocationsAcrossSections is true. This commit handles the emission of DW_FORM_ref_addr when we have an attribute with FORM_ref_addr. A follow-on patch will start using ref_addr when adding a DIEEntry. This commit will be tested and verified in the follow-on patch. Reviewed off-list by Eric, Thanks. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193658 91177308-0d34-0410-b5e6-96231b3b80d8		2013-10-29 22:57:10 +00:00
..
Analysis	SCEV: Make the final add of an inbounds GEP nuw if we know that the index is positive.	2013-10-28 07:30:06 +00:00
AsmParser	Revert r193251 : Use address-taken to disambiguate global variable and indirect memops.	2013-10-27 03:08:44 +00:00
Bitcode	Revert r193251 : Use address-taken to disambiguate global variable and indirect memops.	2013-10-27 03:08:44 +00:00
CodeGen	Debug Info: support for DW_FORM_ref_addr.	2013-10-29 22:57:10 +00:00
DebugInfo	DWARF parser: propery handle DW_FORM_ref_sig8 and fix Windows build.	2013-10-29 16:32:19 +00:00
ExecutionEngine	The FIXME was indeed fixed in the linker, comment removed.	2013-10-25 12:01:53 +00:00
IR	Fix misapplied patch in r193597	2013-10-29 09:37:28 +00:00
IRReader
Linker	Add a 'deleteModule' method to the Linker class.	2013-10-16 08:59:57 +00:00
LTO	Move getSymbol to TargetLoweringObjectFile.	2013-10-29 17:28:26 +00:00
MC	Move the STT_FILE symbols out of the normal symbol table processing for	2013-10-29 01:06:17 +00:00
Object	Support for microMIPS jump instructions	2013-10-29 16:38:59 +00:00
Option	Fix another mistake in r190442.	2013-09-10 23:22:56 +00:00
Support	simplify ConstantRange::getSetSize()	2013-10-28 16:52:38 +00:00
TableGen	Add an error check for a typo I accidentally made in a td file that caused an assert to fire.	2013-08-20 04:22:09 +00:00
Target	Struct byval cleanup: add helper functions to reduce code duplication.	2013-10-29 22:27:32 +00:00
Transforms	ARM cost model: Account for zero cost scalar SROA instructions	2013-10-29 01:33:53 +00:00
CMakeLists.txt	Move LTO support library to a component, allowing it to be tested	2013-09-24 23:52:22 +00:00
LLVMBuild.txt	Move LTO support library to a component, allowing it to be tested	2013-09-24 23:52:22 +00:00
Makefile	Move LTO support library to a component, allowing it to be tested	2013-09-24 23:52:22 +00:00