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LLVM backend for 6502
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Matthias Braun 47941aa098 DAGCombiner: Canonicalize select(and/or,x,y) depending on target. 
This is based on the following equivalences:
select(C0 & C1, X, Y) <=> select(C0, select(C1, X, Y), Y)
select(C0 | C1, X, Y) <=> select(C0, X, select(C1, X, Y))

Many target cannot perform and/or on the CPU flags and therefore the
right side should be choosen to avoid materializign the i1 flags in an
integer register. If the target can perform this operation efficiently
we normalize to the left form.

Differential Revision: http://reviews.llvm.org/D7622

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231507 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-06 19:49:10 +00:00
autoconf
bindings Go bindings: use MDNode::replaceAllUsesWith instead of MDTuple::replaceAllUsesWith. 2015-03-05 22:55:38 +00:00
cmake [sanitizer/coverage] Add AFL-style coverage counters (search heuristic for fuzzing). 2015-03-03 23:27:02 +00:00
docs CodingStyle: Allow delegating ctors 2015-03-06 13:46:50 +00:00
examples Fix the build of the gold-plugin and examples. 2015-03-04 19:15:29 +00:00
include DAGCombiner: Canonicalize select(and/or,x,y) depending on target. 2015-03-06 19:49:10 +00:00
lib DAGCombiner: Canonicalize select(and/or,x,y) depending on target. 2015-03-06 19:49:10 +00:00
projects Reverse the order libc++ and libc++abi are added in CMake. 2015-03-04 01:16:43 +00:00
test DAGCombiner: Canonicalize select(and/or,x,y) depending on target. 2015-03-06 19:49:10 +00:00
tools [dsymutil] Add debug_str construction support. 2015-03-06 17:56:30 +00:00
unittests [ConstantRange] Teach multiply to be cleverer about signed ranges. 2015-03-06 15:50:47 +00:00
utils TableGen: Initialize ErrorInfo to ~0ULL in the MatchInstructionImpl 2015-03-05 19:46:55 +00:00
.arcconfig
.clang-format
.clang-tidy
.gitignore
CMakeLists.txt
CODE_OWNERS.TXT [CODE_OWNERS] Change the ownership of register allocators. 2015-03-05 22:15:17 +00:00
configure
CREDITS.TXT
LICENSE.TXT
llvm.spec.in
LLVMBuild.txt
Makefile
Makefile.common
Makefile.config.in
Makefile.rules Add support for SunOS function/data sections and associated 2015-03-03 20:54:29 +00:00
README.txt

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