Commit Graph

3 Commits

Author SHA1 Message Date
Dan Gohman 198b7ffc11 Reapply r143206, with fixes. Disallow physical register lifetimes
across calls, and only check for nested dependences on the special
call-sequence-resource register.

llvm-svn: 143660
2011-11-03 21:49:52 +00:00
Dan Gohman 9b9c970148 Revert r143206, as there are still some failing tests.
llvm-svn: 143262
2011-10-29 00:41:52 +00:00
Dan Gohman 73057ad24f Reapply r143177 and r143179 (reverting r143188), with scheduler
fixes: Use a separate register, instead of SP, as the
calling-convention resource, to avoid spurious conflicts with
actual uses of SP. Also, fix unscheduling of calling sequences,
which can be triggered by pseudo-two-address dependencies.

llvm-svn: 143206
2011-10-28 17:55:38 +00:00