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9ccb76998f
llvm-6502/lib
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Eli Bendersky 9ccb76998f Optimize the memory usage of MC bundling, by creating a new type of fragment 
into which we can emit single instructions without fixups (which is most
instructions). This is an optimization required because MCDataFragment
is prety large (240 bytes on x64), with no change in functionality.

For large programs, this reduces memory usage overhead required for bundling
by 40%.

To make the code as palatable as possible, the MCEncodedFragment interface was
further fragmented (no pun intended) and MCEncodedFragmentWithFixups is used
as the interface to work against when the user expects fixups. MCDataFragment
and MCRelaxableFragment implement this interface, while the new
MCCompactEncodedInstFragment implements MCEncodeFragment.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172572 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-15 23:22:09 +00:00
..
Analysis SCEVExpander fix. RAUW needs to update the InsertedExpressions cache. 2013-01-14 21:00:37 +00:00
Archive
AsmParser
Bitcode Revert s/Raw/getBitMask/g name change. This is possibly causing LTO test hangings. 2013-01-09 23:36:50 +00:00
CodeGen This patch addresses an incorrect transformation in the DAG combiner. 2013-01-14 22:04:38 +00:00
DebugInfo [Object, DebugInfo] Make DWARFContext BE-aware. 2013-01-09 02:45:05 +00:00
ExecutionEngine [Object][ELF] Simplify ELFObjectFile by using ELFType. 2013-01-15 07:44:25 +00:00
IR [IR] Add verification for module flags with the "require" behavior. 2013-01-15 20:52:06 +00:00
Linker [Linker] Drop asserts that are embedded in cast<> and now checked by the verifier. 2013-01-15 20:52:09 +00:00
MC Optimize the memory usage of MC bundling, by creating a new type of fragment 2013-01-15 23:22:09 +00:00
Object [Object][ELF] Simplify ELFObjectFile by using ELFType. 2013-01-15 07:44:25 +00:00
Option
Support Revert r171829 "Split changeset_ty using iterators instead of loops" as it breaks the VS2008 build 2013-01-14 14:13:06 +00:00
TableGen TableGen: Keep track of superclass reference ranges. 2013-01-10 18:50:11 +00:00
Target This patch fixes a Mips specific bug where 2013-01-15 01:08:02 +00:00
Transforms 1. Hoist minus sign as high as possible in an attempt to reveal 2013-01-15 21:09:32 +00:00
CMakeLists.txt
LLVMBuild.txt
Makefile