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LLVM backend for 6502
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92b38a9d1c
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Hal Finkel 92b38a9d1c Remove extra truncs/exts around i32 bit operations on PPC64 
This generalizes the code to eliminate extra truncs/exts around i1 bit
operations to also do the same on PPC64 for i32 bit operations. This eliminates
a fairly prevalent code wart:

int foo(int a) {
  return a == 5 ? 7 : 8;
}

On PPC64, because of the extension implied by the ABI, this would generate:

	cmplwi 0, 3, 5
	li 12, 8
	li 4, 7
	isel 3, 4, 12, 2
	rldicl 3, 3, 0, 32
	blr

where the 'rldicl 3, 3, 0, 32', the extension, is completely unnecessary. At
least for the single-BB case (which is all that the DAG combine mechanism can
handle), this unnecessary extension is no longer generated.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202600 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-01 21:36:57 +00:00
autoconf [C++11] Replace autoconf --enable-cxx11 with --enable-cxx1y. The 2014-03-01 03:33:08 +00:00
bindings [python-bindings] Remove some cruft that snuck in. 2014-02-23 04:43:26 +00:00
cmake [C++11] Switch the CMake option from LLVM_ENABLE_CXX11 (default on) to 2014-03-01 03:16:07 +00:00
docs [docs] Update the docs to remove my hedging about C++98 vs. C++11. =] 2014-03-01 02:48:03 +00:00
examples Use DataLayout from the module when easily available. 2014-02-25 23:25:17 +00:00
include [C++11] Remove LLVM_HAS_CXX11_STDLIB now that it is just on. 2014-03-01 10:57:19 +00:00
lib Remove extra truncs/exts around i32 bit operations on PPC64 2014-03-01 21:36:57 +00:00
projects Drop libtool from llvm. 2014-02-28 18:17:54 +00:00
test Remove extra truncs/exts around i32 bit operations on PPC64 2014-03-01 21:36:57 +00:00
tools Now that we have C++11, turn simple functors into lambdas and remove a ton of boilerplate. 2014-03-01 11:47:00 +00:00
unittests [C++11] Remove LLVM_HAS_CXX11_STDLIB now that it is just on. 2014-03-01 10:57:19 +00:00
utils Now that we have C++11, turn simple functors into lambdas and remove a ton of boilerplate. 2014-03-01 11:47:00 +00:00
.arcconfig
.clang-format
.gitignore Added .DS_Store entry in .gitignore for ignoring .DS_Store files in the source 2014-01-25 15:15:16 +00:00
CMakeLists.txt [C++11] Switch the CMake option from LLVM_ENABLE_CXX11 (default on) to 2014-03-01 03:16:07 +00:00
CODE_OWNERS.TXT Add myself as owner for libc++ 2014-02-18 14:03:17 +00:00
configure [C++11] Replace autoconf --enable-cxx11 with --enable-cxx1y. The 2014-03-01 03:33:08 +00:00
CREDITS.TXT Fix documentation typos 2013-12-20 00:33:39 +00:00
LICENSE.TXT Update the copyright credits -- Happy new year 2014! 2014-01-01 08:27:31 +00:00
llvm.spec.in
LLVMBuild.txt
Makefile Provide CMake package modules in install tree 2014-02-09 16:37:02 +00:00
Makefile.common
Makefile.config.in [C++11] Replace autoconf --enable-cxx11 with --enable-cxx1y. The 2014-03-01 03:33:08 +00:00
Makefile.rules [C++11] Replace autoconf --enable-cxx11 with --enable-cxx1y. The 2014-03-01 03:33:08 +00:00
README.txt Revert "Test commit to check e-mail address. Please discard this." 2013-10-04 10:59:13 +00:00

README.txt 

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

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LLVM is open source software. You may freely distribute it under the terms of
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Please see the documentation provided in docs/ for further
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If you're writing a package for LLVM, see docs/Packaging.rst for our
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