Jakob Stoklund Olesen defa0afa14 Coalesce subreg-subreg copies. ...

At least some of them:

  %vreg1:sub_16bit = COPY %vreg2:sub_16bit; GR64:%vreg1, GR32: %vreg2

Previously, we couldn't figure out that the above copy could be
eliminated by coalescing %vreg2 with %vreg1:sub_32bit.

The new getCommonSuperRegClass() hook makes it possible.

This is not very useful yet since the unmodified part of the destination
register usually interferes with the source register. The coalescer
needs to understand sub-register interference checking first.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156334 91177308-0d34-0410-b5e6-96231b3b80d8

2012-05-07 22:57:55 +00:00

..

Analysis

Rename the Region::block_iterator to Region::block_node_iterator, and

2012-05-04 20:55:23 +00:00

Archive

Include cstdio in a few place that depended on getting it transitively through StringExtras.h

2012-03-23 11:35:30 +00:00

AsmParser

Convert assert(0) to llvm_unreachable

2012-02-07 05:05:23 +00:00

Bitcode

llvm::SwitchInst

2012-03-11 06:09:17 +00:00

CodeGen

Coalesce subreg-subreg copies.

2012-05-07 22:57:55 +00:00

DebugInfo

Fix a C++11 UDL conflict.

2012-04-04 20:33:56 +00:00

ExecutionEngine

Make IntelJITEvents and OProfileJIT as optional libraries and add

2012-05-07 19:38:40 +00:00

Linker

Add a flag to the struct type finder to collect only those types which have

2012-04-21 23:59:16 +00:00

MC

Nuke a few dead remnants of the CBE.

2012-05-05 17:45:12 +00:00

Object

Fix the implementation of MachOObjectFile::isSectionZeroInit so it follows the MachO spec.

2012-05-02 02:31:28 +00:00

Support

Don't assume size_t is unsigned long long.

2012-05-07 18:12:42 +00:00

TableGen

Move llvm-tblgen's StringMatcher into the TableGen library so it can

2012-05-02 17:32:48 +00:00

Target

Add an MF argument to TRI::getPointerRegClass() and TII::getRegClass().

2012-05-07 22:10:26 +00:00

Transforms

Teach reassociate to commute FMul's and FAdd's in order to canonicalize the order of their operands across instructions. This allows for greater CSE opportunities.

2012-05-07 20:47:23 +00:00

VMCore

Reapply r155682, making constant folding more consistent, with a fix to work

2012-04-27 17:50:22 +00:00

CMakeLists.txt

Move TableGen's parser and entry point into a library

2011-10-01 16:41:13 +00:00

LLVMBuild.txt

LLVMBuild: Introduce a common section which currently has a list of the

2011-12-12 22:45:54 +00:00

Makefile

Remove more of llvmc and dependencies.

2011-09-20 00:34:27 +00:00