Commit Graph

3 Commits

Author SHA1 Message Date
Brendon Cahoon 57c3d4bed3 [Pipeliner] Fix incorrect loop carried dependence calculation
The isLoopCarriedDep function does not correctly compute loop
carried dependences when the array index offset is negative
or the stride is smallar than the access size.

Patch by Denis Antrushin.

Differential Revision: https://reviews.llvm.org/D60135

llvm-svn: 358233
2019-04-11 21:57:51 +00:00
Krzysztof Parzyszek d91a9e27a9 [Hexagon] Simplify CFG after atomic expansion
This will remove suboptimal branching from the generated ll/sc loops.
The extra simplification pass affects a lot of testcases, which have
been modified to accommodate this change: either by modifying the
test to become immune to the CFG simplification, or (less preferablt)
by adding option -hexagon-initial-cfg-clenaup=0.

llvm-svn: 338774
2018-08-02 22:17:53 +00:00
Krzysztof Parzyszek 046090db53 [Hexagon] Add more lit tests
llvm-svn: 327271
2018-03-12 14:01:28 +00:00