OSchip
/
llvm-project
mirror of https://github.com/THU-DSP-LAB/llvm-project.git
13
0
Fork 6
Code Issues Packages Projects Releases Wiki Activity
215,854 Commits 32 Branches 0 Tags 2.2 GiB
Commit Graph

4 Commits

Author SHA1 Message Date
Simon Pilgrim b398da1d5c [X86][SSE] shift/rotate tests - remove unnecessary mcpu arguments and regenerate/cleanup 
llvm-svn: 251232
 2015-10-25 12:07:45 +00:00
Simon Pilgrim 7430804fe1 [DAGCombiner] Generalize masking of constant rotates. 
We don't need a mask of a rotation result to be a constant splat - any constant scalar/vector can be usefully folded.

Followup to D13851.

llvm-svn: 251197
 2015-10-24 18:44:52 +00:00
Simon Pilgrim d5ef318b5b [X86][XOP] Add support for lowering vector rotations 
This patch adds support for lowering to the XOP VPROT / VPROTI vector bit rotation instructions.

This has required changes to the DAGCombiner rotation pattern matching to support vector types - so far I've only changed it to support splat vectors, but generalising this further is feasible in the future.

Differential Revision: http://reviews.llvm.org/D13851

llvm-svn: 251188
 2015-10-24 13:17:26 +00:00
Simon Pilgrim bb17881731 [X86][SSE] Add 256-bit vector bit rotation tests. 
llvm-svn: 250853
 2015-10-20 20:27:23 +00:00