Peter Collingbourne b5914c76cc ARM/ELF: Better codegen for global variable addresses. ... In PIC mode we were previously computing global variable addresses (or GOT entry addresses) by adding the PC, the PC-relative GOT displacement and the GOT-relative symbol/GOT entry displacement. Because the latter two displacements are fixed, we ended up performing one more addition than necessary. This change causes us to compute addresses using a single PC-relative displacement, resulting in a shorter code sequence. This reduces code size by about 4% in a recent build of Chromium for Android. As a result of this change we no longer need to compute the GOT base address in the ARM backend, which allows us to remove the Global Base Reg pass and SDAG lowering for the GOT. We also now no longer use the GOT when addressing a symbol which is known to be defined in the same linkage unit. Specifically, the symbol must have either hidden visibility or a strong definition in the current module in order to not use the the GOT. This is a change from the previous behaviour where we would use the GOT to address externally visible symbols defined in the same module. I think the only cases where this could matter are cases involving symbol interposition, but we don't really support that well anyway. Differential Revision: http://reviews.llvm.org/D13650 llvm-svn: 251322		2015-10-26 18:23:16 +00:00
..
MCDisassembler	Revert r247692: Replace Triple with a new TargetTuple in MCTargetDesc/* and related. NFC.	2015-09-15 16:17:27 +00:00
MCParser	[MC] Add support for GNU as-compatible binary operator precedence	2015-10-26 03:15:34 +00:00
CMakeLists.txt
ConstantPools.cpp
ELFObjectWriter.cpp	Add a RAW mode to StringTableBuilder.	2015-10-23 21:48:05 +00:00
LLVMBuild.txt
MachObjectWriter.cpp	Add a RAW mode to StringTableBuilder.	2015-10-23 21:48:05 +00:00
Makefile
MCAsmBackend.cpp
MCAsmInfo.cpp	MCAsmInfo: Allow targets to specify when the .section directive should be omitted	2015-09-25 21:41:14 +00:00
MCAsmInfoCOFF.cpp
MCAsmInfoDarwin.cpp
MCAsmInfoELF.cpp
MCAsmStreamer.cpp	[X86] Emit .cfi_escape GNU_ARGS_SIZE when adjusting the stack before calls	2015-10-07 07:01:31 +00:00
MCAssembler.cpp	MC: Remove implicit ilist iterator conversions, NFC	2015-10-10 00:13:11 +00:00
MCCodeEmitter.cpp
MCCodeGenInfo.cpp
MCContext.cpp	Clear SectionSymbols in MCContext::Reset	2015-10-09 17:24:54 +00:00
MCDwarf.cpp	[X86] Emit .cfi_escape GNU_ARGS_SIZE when adjusting the stack before calls	2015-10-07 07:01:31 +00:00
MCELFObjectTargetWriter.cpp
MCELFStreamer.cpp	Fix pr24486.	2015-10-05 12:07:05 +00:00
MCExpr.cpp	ARM/ELF: Better codegen for global variable addresses.	2015-10-26 18:23:16 +00:00
MCInst.cpp
MCInstPrinter.cpp
MCInstrAnalysis.cpp
MCInstrDesc.cpp
MCLabel.cpp
MCLinkerOptimizationHint.cpp
MCMachObjectTargetWriter.cpp
MCMachOStreamer.cpp	Use range-based for loops. NFC	2015-10-14 04:36:00 +00:00
MCNullStreamer.cpp
MCObjectFileInfo.cpp	[MachO] Stop generating *coal* sections.	2015-10-15 05:28:38 +00:00
MCObjectStreamer.cpp	MC: Remove implicit ilist iterator conversions, NFC	2015-10-10 00:13:11 +00:00
MCObjectWriter.cpp	Fix pr24486.	2015-10-05 12:07:05 +00:00
MCRegisterInfo.cpp
MCSchedule.cpp
MCSection.cpp	MC: Remove implicit ilist iterator conversions, NFC	2015-10-10 00:13:11 +00:00
MCSectionCOFF.cpp	Sink COFF.h MC include into .cpp files	2015-09-03 16:41:50 +00:00
MCSectionELF.cpp	MCAsmInfo: Allow targets to specify when the .section directive should be omitted	2015-09-25 21:41:14 +00:00
MCSectionMachO.cpp	[ADT] Switch a bunch of places in LLVM that were doing single-character	2015-09-10 06:12:31 +00:00
MCStreamer.cpp	[X86] Emit .cfi_escape GNU_ARGS_SIZE when adjusting the stack before calls	2015-10-07 07:01:31 +00:00
MCSubtargetInfo.cpp	Use std::begin/end and std::is_sorted to simplify some code. NFC	2015-10-17 16:37:11 +00:00
MCSymbol.cpp	Fix pr24486.	2015-10-05 12:07:05 +00:00
MCSymbolELF.cpp
MCSymbolizer.cpp
MCTargetOptions.cpp	[llvm-mc] Add --no-warn flag with -W alias to disable outputting warnings while assembling.	2015-07-27 22:39:14 +00:00
MCValue.cpp
MCWin64EH.cpp
MCWinEH.cpp
StringTableBuilder.cpp	Add a RAW mode to StringTableBuilder.	2015-10-23 21:48:05 +00:00
SubtargetFeature.cpp	[ADT] Switch a bunch of places in LLVM that were doing single-character	2015-09-10 06:12:31 +00:00
WinCOFFObjectWriter.cpp	Add a RAW mode to StringTableBuilder.	2015-10-23 21:48:05 +00:00
WinCOFFStreamer.cpp	Fix pr24486.	2015-10-05 12:07:05 +00:00
YAML.cpp