llvm-project

Commit Graph

Author	SHA1	Message	Date
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	c8b6ecabd8	[RDF] Fix liveness propagation through shadows Each shadow only represents data flow that is restricted to its reaching def. Propagating more than that could lead to spurious register liveness, resulting in extra (incorrectly) block live-ins. llvm-svn: 283143	2016-10-03 20:17:20 +00:00

Author

SHA1

Message

Date

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

c8b6ecabd8

[RDF] Fix liveness propagation through shadows

Each shadow only represents data flow that is restricted to its reaching
def. Propagating more than that could lead to spurious register liveness,
resulting in extra (incorrectly) block live-ins.

llvm-svn: 283143

2016-10-03 20:17:20 +00:00

2 Commits