Commit Graph

3 Commits

Author SHA1 Message Date
Sanjoy Das f63768cbfc [PlaceSafepoints] Don't call undef in test case; NFC
llvm-svn: 273764
2016-06-25 01:40:54 +00:00
Sanjoy Das f7302c8baf [PlaceSafepoints] Clamp NoStatepoints to true
This change permanently clamps -spp-no-statepoints to true (the code
deletion will come later).  Tests that specifically tested
PlaceSafepoint's ability to wrap calls in gc.statepoint have been moved
to RS4GC's test suite.

llvm-svn: 259096
2016-01-28 21:51:14 +00:00
Sanjoy Das 95639746e5 [PlaceSafepoints] Introduce a -spp-no-statepoints flag
Summary:
This change adds a `-spp-no-statepoints` flag to PlaceSafepoints that
bypasses the code that wraps newly introduced polls and existing calls
in gc.statepoint.  With `-spp-no-statepoints` enabled, PlaceSafepoints
effectively becomes a safpeoint **poll** insertion pass.

The eventual goal is to "constant fold" this option, along with
`-rs4gc-use-deopt-bundles` to `true`, once clients using gc.statepoint
are okay doing so.

Reviewers: pgavlin, reames, JosephTremoulet

Subscribers: sanjoy, mcrosier, llvm-commits

Differential Revision: http://reviews.llvm.org/D16439

llvm-svn: 258551
2016-01-22 21:02:55 +00:00