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LLVM backend for 6502
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Jakob Stoklund Olesen 4ad27eda29 Infer instruction properties from single-instruction patterns. 
Previously, instructions without a primary patterns wouldn't get their
properties inferred. Now, we use all single-instruction patterns for
inference, including 'def : Pat<>' instances.

This causes a lot of instruction flags to change.

- Many instructions no longer have the UnmodeledSideEffects flag because
  their flags are now inferred from a pattern.

- Instructions with intrinsics will get a mayStore flag if they already
  have UnmodeledSideEffects and a mayLoad flag if they already have
  mayStore. This is because intrinsics properties are linear.

- Instructions with atomic_load patterns get a mayStore flag because
  atomic loads can't be reordered. The correct workaround is to create
  pseudo-instructions instead of using normal loads. PR13693.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162614 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-24 22:46:53 +00:00
autoconf [configure] Add a --enable-keep-symbols configure flag. 2012-08-14 18:14:20 +00:00
bindings Remove tabs. 2012-07-19 00:23:13 +00:00
cmake enable cross compilation with cmake 2012-08-20 19:56:52 +00:00
docs Change the linker_private_weak_def_auto' linkage to linkonce_odr_auto_hide' to 2012-08-17 18:33:14 +00:00
examples Move llvm/Support/IRBuilder.h -> llvm/IRBuilder.h 2012-06-29 12:38:19 +00:00
include Forgot to check in ProfileDataTypes.h in r162576 2012-08-24 18:40:00 +00:00
lib Explicitly mark LEApcrel pseudos with hasSideEffects. 2012-08-24 21:44:11 +00:00
projects Fix a typo (the the => the) 2012-07-23 08:51:15 +00:00
runtime Profile: move a single enum out of ProfileInfoTypes.h into a new 2012-08-24 18:31:44 +00:00
test Infer instruction properties from single-instruction patterns. 2012-08-24 22:46:53 +00:00
tools Add support for the --param ssp-buffer-size= driver option. 2012-08-21 16:15:24 +00:00
unittests Don't pass a null pointer to cast<> in its unit tests. 2012-08-21 20:39:25 +00:00
utils Infer instruction properties from single-instruction patterns. 2012-08-24 22:46:53 +00:00
.gitignore Ignore the documentation-suggested location for compile_commands.json 2012-08-21 19:23:30 +00:00
CMakeLists.txt enable cross compilation with cmake 2012-08-20 19:56:52 +00:00
CODE_OWNERS.TXT Add the list of code owners to the top level of the LLVM source tree to 2012-07-26 08:04:09 +00:00
configure Update configure. 2012-08-14 18:14:22 +00:00
CREDITS.TXT Alphabetize. 2012-06-19 23:47:58 +00:00
LICENSE.TXT
llvm.spec.in
LLVMBuild.txt
Makefile darwin/cross-build: Unset SDKROOT when building BuildTools. 2012-08-22 22:01:01 +00:00
Makefile.common [docs] Remove unsupported references to ExtraSource variable. 2012-05-15 21:32:27 +00:00
Makefile.config.in [configure] Add a --enable-keep-symbols configure flag. 2012-08-14 18:14:20 +00:00
Makefile.rules Add a configure flag for enabling -Werror on the command line 2012-08-03 19:58:20 +00:00
README.txt test commit 2012-07-11 17:34:12 +00:00

README.txt 

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

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