Philip Reames da801219ba [Statepoints] Use Indirect operands for spill slots ... Teach the statepoint lowering code to emit Indirect stackmap entries for spill inserted by StatepointLowering (i.e. SelectionDAG), but Direct stackmap entries for in-IR allocas which represent manual stack slots. This is what the docs call for (http://llvm.org/docs/StackMaps.html#stack-map-format), but we've been emitting both as Direct. This was pointed out recently on the mailing list as a bug. It also blocks http://reviews.llvm.org/D15632 which extends the lowering to handle vector-of-pointers since only Indirect references can encode a variable sized slot. To implement this, I introduced a new flag on the StackObject class used to maintian information about stack slots. I original considered (and prototyped in http://reviews.llvm.org/D15632), the idea of using the existing isSpillSlot flag, but end up deciding that was a bit too risky and that the cost of adding a new flag was low. Having the new flag will also allow us - in the future - to emit better comments in verbose assembly which indicate where a particular stack spill around a call comes from. (deopt, gc, regalloc). Differential Revision: http://reviews.llvm.org/D15759 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256352 91177308-0d34-0410-b5e6-96231b3b80d8		2015-12-23 23:44:28 +00:00
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llvm	[Statepoints] Use Indirect operands for spill slots	2015-12-23 23:44:28 +00:00
llvm-c	Delete APIs that have been deprecated since 2010.	2015-12-19 21:42:07 +00:00