Derek Schuff cdb105b62f [MC] Attach labels to existing fragments instead of using a separate fragment ... Summary: Currently when emitting a label, a new data fragment is created for it if the current fragment isn't a data fragment. This change instead enqueues the label and attaches it to the next fragment (e.g. created for the next instruction) if possible. When bundle alignment is not enabled, this has no functionality change (it just results in fewer extra fragments being created). For bundle alignment, previously labels would point to the beginning of the bundle padding instead of the beginning of the emitted instruction. This was not only less efficient (e.g. jumping to the nops instead of past them) but also led to miscalculation of the address of the GOT (since MC uses a label difference rather than emitting a "." symbol). Fixes https://code.google.com/p/nativeclient/issues/detail?id=3982 Test Plan: regression test attached Reviewers: jvoung, eliben Subscribers: jfb, llvm-commits Differential Revision: http://reviews.llvm.org/D5915 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220439 91177308-0d34-0410-b5e6-96231b3b80d8		2014-10-22 22:38:06 +00:00
..
MCDisassembler	Extend C disassembler API to allow specifying target features	2014-09-30 16:31:40 +00:00
MCParser	Simplify handling of --noexecstack by using getNonexecutableStackSection.	2014-10-15 16:12:52 +00:00
CMakeLists.txt	Nuke MCAnalysis.	2014-09-02 22:32:20 +00:00
ConstantPools.cpp	Fix build failure on windows	2014-07-18 16:41:58 +00:00
ELFObjectWriter.cpp	Add back commits r219835 and a fixed version of r219829.	2014-10-17 01:48:58 +00:00
LLVMBuild.txt	Nuke MCAnalysis.	2014-09-02 22:32:20 +00:00
MachObjectWriter.cpp	MC: Bit pack MCSymbolData.	2014-10-11 15:07:21 +00:00
Makefile	Nuke MCAnalysis.	2014-09-02 22:32:20 +00:00
MCAsmBackend.cpp	Simplify a really complicated check for Arch == X86_64.	2014-03-11 21:22:57 +00:00
MCAsmInfo.cpp	Drop support for an old version of ld64 (from darwin 9).	2014-10-21 18:31:09 +00:00
MCAsmInfoCOFF.cpp	Remove HasLEB128.	2014-08-15 14:01:07 +00:00
MCAsmInfoDarwin.cpp	Drop support for an old version of ld64 (from darwin 9).	2014-10-21 18:31:09 +00:00
MCAsmInfoELF.cpp	Move getNonexecutableStackSection up to the base ELF class.	2014-10-15 15:44:16 +00:00
MCAsmStreamer.cpp	MC Win64: Put unwind info for COMDAT code into the same COMDAT group	2014-09-04 17:42:03 +00:00
MCAssembler.cpp	[MC] Make bundle alignment mode setting idempotent and support nested bundles	2014-10-15 17:10:04 +00:00
MCCodeEmitter.cpp
MCCodeGenInfo.cpp
MCContext.cpp	Add back commits r219835 and a fixed version of r219829.	2014-10-17 01:48:58 +00:00
MCDwarf.cpp	Drop support for an old version of ld64 (from darwin 9).	2014-10-21 18:31:09 +00:00
MCELF.cpp	[MC] Constify MCELF::GetVisibility and MCELF::getOther	2014-07-11 17:34:44 +00:00
MCELFObjectTargetWriter.cpp	[MC] Pass MCSymbolData to needsRelocateWithSymbol	2014-07-20 23:15:06 +00:00
MCELFStreamer.cpp	Add back commits r219835 and a fixed version of r219829.	2014-10-17 01:48:58 +00:00
MCExpr.cpp	MC: Shrink MCSymbolRefExpr by only storing the bits we need.	2014-10-11 17:57:27 +00:00
MCInst.cpp	[C++11] More 'nullptr' conversion or in some cases just using a boolean check instead of comparing to nullptr.	2014-04-13 04:57:38 +00:00
MCInstPrinter.cpp	[MC] When MCInstPrint::printAnnotation uses a comment stream, it has to ensure	2013-10-01 19:21:24 +00:00
MCInstrAnalysis.cpp	MC: Disassembled CFG reconstruction.	2013-05-24 01:07:04 +00:00
MCLabel.cpp
MCLinkerOptimizationHint.cpp	[ARM64][CollectLOH] Add some comments to explain how the LOHs	2014-04-02 01:02:28 +00:00
MCMachObjectTargetWriter.cpp
MCMachOStreamer.cpp	Add and update reset() and doInitialization() methods to MC* and passes.	2014-09-17 09:25:36 +00:00
MCNullStreamer.cpp	Remove method that is identical to the base class one.	2014-10-14 17:38:38 +00:00
MCObjectFileInfo.cpp	MC: Support aligned COMMON symbols for COFF	2014-09-21 09:18:07 +00:00
MCObjectStreamer.cpp	[MC] Attach labels to existing fragments instead of using a separate fragment	2014-10-22 22:38:06 +00:00
MCObjectWriter.cpp
MCRegisterInfo.cpp	Make SubRegIndex size mandatory, following r183020.	2013-05-31 23:45:26 +00:00
MCSection.cpp	Use the new script to sort the includes of every file under lib.	2012-12-03 16:50:05 +00:00
MCSectionCOFF.cpp	MC: Fix MCSectionCOFF::PrintSwitchToSection	2014-09-20 20:40:50 +00:00
MCSectionELF.cpp	delete function name from comment	2014-10-09 21:23:39 +00:00
MCSectionMachO.cpp	[C++11] More 'nullptr' conversion or in some cases just using a boolean check instead of comparing to nullptr.	2014-04-13 04:57:38 +00:00
MCStreamer.cpp	Simplify handling of --noexecstack by using getNonexecutableStackSection.	2014-10-15 16:12:52 +00:00
MCSubtargetInfo.cpp	Change MCSchedModel to be a struct of statically initialized data.	2014-09-02 17:43:54 +00:00
MCSymbol.cpp	Revert "Add back r203962, r204028 and r204059."	2014-03-19 00:13:43 +00:00
MCSymbolizer.cpp	Move MCSymbolizer's constructor into header. It's trivial - there's no need for	2014-03-27 02:42:52 +00:00
MCTargetOptions.cpp	Convert MC command line option for fatal assembler warnings into a	2014-08-26 18:39:50 +00:00
MCValue.cpp	Fix pr19645.	2014-05-03 19:57:04 +00:00
MCWin64EH.cpp	MC Win64: Put unwind info for COMDAT code into the same COMDAT group	2014-09-04 17:42:03 +00:00
MCWinEH.cpp	MC Win64: Put unwind info for COMDAT code into the same COMDAT group	2014-09-04 17:42:03 +00:00
StringTableBuilder.cpp	MachObjectWriter: optimize the string table for common suffices	2014-10-06 17:05:19 +00:00
SubtargetFeature.cpp	Fix some cases where StringRef was being passed by const reference. Remove const from some other StringRefs since its implicitly const already.	2014-08-30 16:48:02 +00:00
WinCOFFObjectWriter.cpp	MC: Bit pack MCSymbolData.	2014-10-11 15:07:21 +00:00
WinCOFFStreamer.cpp	Simplify handling of --noexecstack by using getNonexecutableStackSection.	2014-10-15 16:12:52 +00:00
YAML.cpp	Invert the MC -> Object dependency.	2014-07-03 02:01:39 +00:00