llvm-6502

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LLVM backend for 6502

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Sanjay Patel a4554c2897 Improve sqrt estimate algorithm (fast-math) This patch changes the fast-math implementation for calculating sqrt(x) from: y = 1 / (1 / sqrt(x)) to: y = x * (1 / sqrt(x)) This has 2 benefits: less code / faster code and one less estimate instruction that may lose precision. The only target that will be affected (until http://reviews.llvm.org/D5658 is approved) is PPC. The difference in codegen for PPC is 2 less flops for a single-precision sqrtf or vector sqrtf and 4 less flops for a double-precision sqrt. We also eliminate a constant load and extra register usage. Differential Revision: http://reviews.llvm.org/D5682 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219445 91177308-0d34-0410-b5e6-96231b3b80d8		2014-10-09 21:26:35 +00:00
autoconf	Recognize aarch64_be as valid architecture.	2014-10-06 23:05:04 +00:00
bindings	Reinstate "Nuke the old JIT."	2014-09-02 22:28:02 +00:00
cmake	Revert r219354. It seems to break some buildbots.	2014-10-08 23:07:59 +00:00
docs	Update dwarf::ApplePropertyAttributes enum to meaningful values.	2014-10-08 14:59:44 +00:00
examples	Add doInitialization/doFinalization to DataLayoutPass.	2014-09-10 21:27:43 +00:00
include	Add ApplePropertyString dump helper to Dwarf.{h\|cpp}.	2014-10-09 20:43:04 +00:00
lib	Improve sqrt estimate algorithm (fast-math)	2014-10-09 21:26:35 +00:00
projects	[cmake] Use the external project machinery for libcxxabi so that it can	2014-07-25 10:27:40 +00:00
test	Improve sqrt estimate algorithm (fast-math)	2014-10-09 21:26:35 +00:00
tools	Object: Add range iterators for COFF import/export table	2014-10-09 02:16:38 +00:00
unittests	[Support] Add MemoryBuffer::getFileSlice()	2014-10-08 00:22:18 +00:00
utils	[AVX512] Extended avx512_binop_rm for AVX512VL subsets.	2014-10-09 08:38:48 +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	Add .clang-tidy configuration file to provide LLVM-optimized defaults for	2014-09-08 13:30:00 +00:00
.gitignore	Add Polly to the ignored trees.	2014-06-25 13:13:36 +00:00
CMakeLists.txt	Add LLVM_ENABLE_MODULES flag to CMake to enable building with C++ modules.	2014-09-26 22:40:15 +00:00
CODE_OWNERS.TXT	Add Tom Stellard's role as 3.5 release manager.	2014-09-12 08:07:31 +00:00
configure	Remove unused ALL_BINDINGS configuration variable.	2014-10-03 23:03:01 +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	Remove unused ALL_BINDINGS configuration variable.	2014-10-03 23:03:01 +00:00
Makefile.rules	Revert my earlier change to add "all" as a dependency to check. In	2014-09-19 18:44:27 +00:00
README.txt	Trivial test commit.	2014-04-26 19:05:45 +00:00

README.txt

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