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LLVM backend for 6502
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d40d4c34f7
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Jakob Stoklund Olesen d40d4c34f7 Resolve conflicts involving dead vector lanes for -new-coalescer. 
A common coalescing conflict in vector code is lane insertion:

  %dst = FOO
  %src = BAR
  %dst:ssub0 = COPY %src

The live range of %src interferes with the ssub0 lane of %dst, but that
lane is never read after %src would have clobbered it. That makes it
safe to merge the live ranges and eliminate the COPY:

  %dst = FOO
  %dst:ssub0 = BAR

This patch teaches the new coalescer to resolve conflicts where dead
vector lanes would be clobbered, at least as long as the clobbered
vector lanes don't escape the basic block.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164250 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-19 21:29:18 +00:00
autoconf Temporarily revert this to bring back the bots. 2012-08-28 01:17:46 +00:00
bindings add support for ocaml 3.12 2012-09-02 14:42:56 +00:00
cmake CMake toolchain file for Android NDK. 2012-09-11 11:54:27 +00:00
docs Test commit 2012-09-18 22:21:43 +00:00
examples
include This patch adds memory support functions which will later be used to implement section-specific protection handling in MCJIT. 2012-09-19 20:46:12 +00:00
lib Resolve conflicts involving dead vector lanes for -new-coalescer. 2012-09-19 21:29:18 +00:00
projects Enable recursing into the compiler-rt projcet with the CMake build. 2012-08-29 00:38:02 +00:00
runtime libprofile: [CMake] Let libprofile_rt be not loadable_module but shared library. Autoconf's one does so. 2012-08-29 00:37:51 +00:00
test Resolve conflicts involving dead vector lanes for -new-coalescer. 2012-09-19 21:29:18 +00:00
tools Silence -Wnon-virtual-dtor in llvm-stress. 2012-09-19 05:08:30 +00:00
unittests This patch adds memory support functions which will later be used to implement section-specific protection handling in MCJIT. 2012-09-19 20:46:12 +00:00
utils Remove code for setting the VEX L-bit as a function of operand size from the code emitters and the disassembler table builder. Fix a couple instructions that were still missing VEX_L. 2012-09-19 06:37:45 +00:00
.gitignore
CMakeLists.txt
CODE_OWNERS.TXT
configure Temporarily revert this to bring back the bots. 2012-08-28 01:17:46 +00:00
CREDITS.TXT Add IRC handle. 2012-09-11 07:50:40 +00:00
LICENSE.TXT
llvm.spec.in
LLVMBuild.txt
Makefile darwin/cross-build: Unset SDKROOT when building BuildTools. 2012-08-22 22:01:01 +00:00
Makefile.common
Makefile.config.in Temporarily revert this to bring back the bots. 2012-08-28 01:17:46 +00:00
Makefile.rules Temporarily revert this to bring back the bots. 2012-08-28 01:17:46 +00:00
README.txt

README.txt 

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