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d07494f102
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Adam Nemet d07494f102 [DAGCombiner] Distribute TRUNC through AND in rotation amount 
This is already done for shifts.  Allow it for rotations as well. E.g.:

   (rotl:i32 x, (trunc (and y, 31))) -> (rotl:i32 x, (and (trunc y), 31))

Use the newly factored-out distributeTruncateThroughAnd.

With this patch and some X86.td tweaks we should be able to remove redundant
masking of the rotation amount like in the example above.  HW implicitly
performs this masking.

The testcase will be added as part of the X86 patch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203316 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-07 23:56:30 +00:00
autoconf Now that we don't use libtool, we don't need to upgrade it :-) 2014-03-05 22:45:14 +00:00
bindings [python-bindings] Remove some cruft that snuck in. 2014-02-23 04:43:26 +00:00
cmake [CMake] add_llvm_target(): No need to include TABLEGEN_OUTPUT in source list. 2014-03-04 17:05:28 +00:00
docs [docs] Teach CMake docs build how to generate Qt Creator help/documentation files. 2014-03-07 19:19:28 +00:00
examples Fix warnings about an variable only used in asserts. 2014-03-06 06:35:46 +00:00
include Two part patch: 2014-03-07 22:40:37 +00:00
lib [DAGCombiner] Distribute TRUNC through AND in rotation amount 2014-03-07 23:56:30 +00:00
projects "Mac OS/X" -> "Mac OS X" spelling fixes for llvm. 2014-03-07 18:08:54 +00:00
test [DAGCombiner] Recognize another rotation idiom 2014-03-07 23:56:28 +00:00
tools Add missing std:: qualifiers 2014-03-07 14:55:30 +00:00
unittests Fix EXPECT_* to not produce a compile warning. 2014-03-07 21:04:24 +00:00
utils Replace PROLOG_LABEL with a new CFI_INSTRUCTION. 2014-03-07 06:08:31 +00:00
.arcconfig
.clang-format Test commit. 2014-03-02 13:08:46 +00:00
.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 Cleaning up a bunch of pre-Visual C++ 2012 build hacks. 2014-03-04 09:23:33 +00:00
CODE_OWNERS.TXT Add myself as owner for libc++ 2014-02-18 14:03:17 +00:00
configure Add patch level to llvm version in CMake and Autoconf 2014-03-03 15:22:00 +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 Remove the very substantial, largely unmaintained legacy PGO 2013-10-02 15:42:23 +00:00
Makefile Provide CMake package modules in install tree 2014-02-09 16:37:02 +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 Add patch level to llvm version in CMake and Autoconf 2014-03-03 15:22:00 +00:00
Makefile.rules "Mac OS/X" -> "Mac OS X" spelling fixes for llvm. 2014-03-07 18:08:54 +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 

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