llvm-capstone

mirror of https://github.com/capstone-engine/llvm-capstone.git synced 2025-01-05 07:32:36 +00:00

History

Andrea Di Biagio b2921c7ca0 [DAG] Further improve the logic in DAGCombiner that folds a pair of shuffles into a single shuffle if the resulting mask is legal. This patch teaches the DAGCombiner how to fold shuffles according to the following new rules: 1. shuffle(shuffle(x, y), undef) -> x 2. shuffle(shuffle(x, y), undef) -> y 3. shuffle(shuffle(x, y), undef) -> shuffle(x, undef) 4. shuffle(shuffle(x, y), undef) -> shuffle(y, undef) The backend avoids to combine shuffles according to rules 3. and 4. if the resulting shuffle does not have a legal mask. This is to avoid introducing illegal shuffles that are potentially expanded into a sub-optimal sequence of target specific dag nodes during vector legalization. Added test case combine-vec-shuffle-2.ll to verify that we correctly triggers the new rules when combining shuffles. llvm-svn: 212748		2014-07-10 18:04:55 +00:00
..
autoconf	Remove path_tclsh.m4.	2014-06-02 12:54:32 +00:00
bindings	[OCaml] Documentation improvements.	2014-07-02 22:17:20 +00:00
cmake	Prospective -fsanitize=memory build fix following r212586	2014-07-09 06:27:05 +00:00
docs	Fix types in documentation.	2014-07-10 03:22:16 +00:00
examples	Try to fix the msvc build.	2014-04-29 23:37:02 +00:00
include	Add the CSR company and the Kalimba DSP processor to Triple.	2014-07-10 17:26:54 +00:00
lib	[DAG] Further improve the logic in DAGCombiner that folds a pair of shuffles into a single shuffle if the resulting mask is legal.	2014-07-10 18:04:55 +00:00
projects
test	[DAG] Further improve the logic in DAGCombiner that folds a pair of shuffles into a single shuffle if the resulting mask is legal.	2014-07-10 18:04:55 +00:00
tools	Changed the lvm-nm alias "-s" for -print-armap to "-M".	2014-07-08 23:47:31 +00:00
unittests	Decouple llvm::SpecialCaseList text representation and its LLVM IR semantics.	2014-07-09 19:40:08 +00:00
utils	Change an assert() to a diagnostic.	2014-07-09 18:55:49 +00:00
.arcconfig
.clang-format
.gitignore	Add Polly to the ignored trees.	2014-06-25 13:13:36 +00:00
CMakeLists.txt	[CMake] Introduce LLVM_SHLIB_OUTPUT_INTDIR.	2014-07-04 04:23:26 +00:00
CODE_OWNERS.TXT
configure	Touch configure to force clang's config.h.in reconfiguration on the build servers	2014-06-06 10:36:38 +00:00
CREDITS.TXT	Update Credits.	2014-05-29 19:59:58 +00:00
LICENSE.TXT
llvm.spec.in
LLVMBuild.txt
Makefile
Makefile.common
Makefile.config.in
Makefile.rules	[Make] Fix dependencies for td.expanded	2014-06-20 19:00:41 +00:00
README.txt	Trivial test commit.	2014-04-26 19:05:45 +00:00

README.txt

Low Level Virtual Machine (LLVM)
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