LLVM backend for 6502
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Ahmed Bougacha 14593eb417 [X86] Special-case 2x CMOV when custom-inserting.
This lets us avoid a few copies that are otherwise hard to get rid of.
The way this is done is, the custom-inserter looks at the following
instruction for another CMOV, and replaces both at the same time.
A previous version used a new CMOV2 opcode, but the custom inserter
is expected to be able to return a different basic block anyway, which
means it's OK - though far from ideal - to alter that block's contents.
Explicitly document that, in case it ever makes a difference.
Alternatives welcome!

Follow-up to r231045.

rdar://19767934
Closes http://reviews.llvm.org/D8019


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231046 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-03 01:21:16 +00:00
autoconf Revert r230812. Do not break builds for no reason. 2015-02-28 19:43:20 +00:00
bindings Restore LLVMLinkModules C API until it is properly deprecated. 2015-03-02 18:59:38 +00:00
cmake cmake: Use MSVC atomics with clang-cl 2015-03-02 22:00:23 +00:00
docs [PerformanceTips] Document various items folks have suggested 2015-03-02 19:19:04 +00:00
examples llvm/examples: Add missing include according to r230907. 2015-03-02 01:04:34 +00:00
include [X86] Special-case 2x CMOV when custom-inserting. 2015-03-03 01:21:16 +00:00
lib [X86] Special-case 2x CMOV when custom-inserting. 2015-03-03 01:21:16 +00:00
projects [cmake] Use the external project machinery for libcxxabi so that it can 2014-07-25 10:27:40 +00:00
test [X86] Special-case 2x CMOV when custom-inserting. 2015-03-03 01:21:16 +00:00
tools Add r230655 back with a fix. 2015-03-02 19:08:03 +00:00
unittests LowerBitSets: Use byte arrays instead of bit sets to represent in-memory bit sets. 2015-03-03 00:49:28 +00:00
utils lit: Add 'cd' support to the internal shell and port some tests 2015-03-02 21:33:18 +00:00
.arcconfig Updated phabricator server. 2014-04-07 03:57:04 +00:00
.clang-format Test commit. 2014-03-02 13:08:46 +00:00
.clang-tidy Enable display of compiler diagnostics in clang-tidy by default. 2014-10-29 17:29:38 +00:00
.gitignore Add one more vim swap file pattern 2015-01-30 21:59:28 +00:00
CMakeLists.txt Minor follow-ups to r229720 suggested on llvmdev 2015-02-27 18:22:46 +00:00
CODE_OWNERS.TXT Assume code ownership for the PS4 to ensure patches get reviewed, per the Developer Policy. 2015-01-28 18:33:39 +00:00
configure Revert r230812. Do not break builds for no reason. 2015-02-28 19:43:20 +00:00
CREDITS.TXT Rise from the dead and update personal info 2014-08-25 17:51:04 +00:00
LICENSE.TXT Remove projects/sample. 2014-03-12 22:40:22 +00:00
llvm.spec.in
LLVMBuild.txt Remove the very substantial, largely unmaintained legacy PGO 2013-10-02 15:42:23 +00:00
Makefile [configure/make] Propagate names of build host tools when making BuildTools 2014-03-25 21:45:41 +00:00
Makefile.common Makefile.common: Update a description, s/Source/SOURCES/ , according to MakefileGuide.html#control-variables . 2012-12-07 01:43:23 +00:00
Makefile.config.in Add a check for misbehaving -Wcomment from gcc-4.7 and add 2014-11-05 00:35:15 +00:00
Makefile.rules Add a check for misbehaving -Wcomment from gcc-4.7 and add 2014-11-05 00:35:15 +00:00
README.txt Revert test commit 2015-02-04 18:46:00 +00:00

Low Level Virtual Machine (LLVM)
================================

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