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LLVM backend for 6502
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15fe7cf70f
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Chandler Carruth 15fe7cf70f [Unroll] Separate the logic for testing each iteration of the loop, 
accumulating estimated cost, and other loop-centric logic from the logic
used to analyze instructions in a particular iteration.

This makes the visitor very narrow in scope -- all it does is visit
instructions, update a map of simplified values, and return whether it
is able to optimize away a particular instruction.

The two cost metrics are now returned as an optional struct. When the
optional is left unengaged, there is no information about the unrolled
cost of the loop, when it is engaged the cost metrics are available to
run against the thresholds.

No functionality changed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238033 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-22 17:41:35 +00:00
autoconf Deprecate in-source autotools builds 2015-05-04 02:04:54 +00:00
bindings IR: Give 'DI' prefix to debug info metadata 2015-04-29 16:38:44 +00:00
cmake Try to fix the build with MSVC 2015 by disabling sized deallocation 2015-05-19 23:28:23 +00:00
docs Document the CoreCLR GC Strategy 2015-05-21 00:50:10 +00:00
examples BrainF.cpp: Update CreateCall() according to r237624. 2015-05-19 06:50:19 +00:00
include remove names from comments, fix typos; NFC 2015-05-22 15:38:24 +00:00
lib [Unroll] Separate the logic for testing each iteration of the loop, 2015-05-22 17:41:35 +00:00
projects build: make libunwind a proper project 2015-04-25 01:47:39 +00:00
test [PPC64] Add support for clrbhrb, mfbhrbe, rfebb. 2015-05-22 16:44:10 +00:00
tools Fix llvm-nm -S option. 2015-05-22 13:28:35 +00:00
unittests [Support] Fix ErrorOr equality operator. 2015-05-21 23:15:00 +00:00
utils Improve check on git-svnrevert, better error message 2015-05-16 10:23:48 +00:00
.arcconfig
.clang-format
.clang-tidy
.gitignore Ignore compile_commands.json only at the root of the tree. 2015-03-26 18:55:42 +00:00
CMakeLists.txt Enable solid lzma compression for cpack, decreases setup size by ~30% 2015-05-14 17:07:41 +00:00
CODE_OWNERS.TXT Added Andrey Churbanov as the owner of the OpenMP runtime library code 2015-05-05 20:17:53 +00:00
configure Deprecate in-source autotools builds 2015-05-04 02:04:54 +00:00
CREDITS.TXT
LICENSE.TXT
llvm.spec.in
LLVMBuild.txt
Makefile
Makefile.common
Makefile.config.in Deprecate in-source autotools builds 2015-05-04 02:04:54 +00:00
Makefile.rules
README.txt Revert test commit at revision 233535. 2015-03-30 12:39:03 +00:00

README.txt 

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

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Please see the documentation provided in docs/ for further
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