Hans Wennborg 07d10a6e30 Change eliminateCallFramePseudoInstr() to return an iterator ...

This will become necessary in a subsequent change to make this method
merge adjacent stack adjustments, i.e. it might erase the previous
and/or next instruction.

It also greatly simplifies the calls to this function from Prolog-
EpilogInserter. Previously, that had a bunch of logic to resume iteration
after the call; now it just continues with the returned iterator.

Note that this changes the behaviour of PEI a little. Previously,
it attempted to re-visit the new instruction created by
eliminateCallFramePseudoInstr(). That code was added in r36625,
but I can't see any reason for it: the new instructions will obviously
not be pseudo instructions, they will not have FrameIndex operands,
and we have already accounted for the stack adjustment.

Differential Revision: http://reviews.llvm.org/D18627

llvm-svn: 265036

2016-03-31 18:33:38 +00:00

..

llvm

Change eliminateCallFramePseudoInstr() to return an iterator

2016-03-31 18:33:38 +00:00

llvm-c

Swift Calling Convention: add swiftself attribute.

2016-03-29 17:37:21 +00:00