Otherwise, if you're in debugging mode, you get warnings for (apparently)
every immediate constant in the function during reg. allocation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12538 91177308-0d34-0410-b5e6-96231b3b80d8
Make an explicit call to it from runOnFunction() if we know we're supposed to
write into the global. This is lame (esp. the const_cast), but it solves
the problem.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12291 91177308-0d34-0410-b5e6-96231b3b80d8
make the output more compact.
Divorce state-saving from the doFinalization method; for some reason it's not
getting called when I want it to, at Reoptimizer time. Put the guts in
PhyRegAlloc::finishSavingState(). Put an abort() in it so that I can be really
really sure that it's getting called.
Update comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12286 91177308-0d34-0410-b5e6-96231b3b80d8
De-constify SaveStateToModule; we have to set both it and SaveRegAllocState
explicitly in the reoptimizer.
Make SaveRegAllocState an 'external location' option.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12278 91177308-0d34-0410-b5e6-96231b3b80d8
ilist of MachineInstr objects. This allows constant time removal and
insertion of MachineInstr instances from anywhere in each
MachineBasicBlock. It also allows for constant time splicing of
MachineInstrs into or out of MachineBasicBlocks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11340 91177308-0d34-0410-b5e6-96231b3b80d8
a) remove opIsUse(), opIsDefOnly(), opIsDefAndUse()
b) add isUse(), isDef()
c) rename opHiBits32() to isHiBits32(),
opLoBits32() to isLoBits32(),
opHiBits64() to isHiBits64(),
opLoBits64() to isLoBits64().
This results to much more readable code, for example compare
"op.opIsDef() || op.opIsDefAndUse()" to "op.isDef()" a pattern used
very often in the code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10461 91177308-0d34-0410-b5e6-96231b3b80d8
externally-visible linkage, and SaveStateToModule must default to true for llc.
I don't remember why I made it const; perhaps it should be deconstified.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9858 91177308-0d34-0410-b5e6-96231b3b80d8
each instruction produces as "operand" -1, and the other operands as 0
.. n, as before. PhyRegAlloc::saveState() is refactored into
PhyRegAlloc::saveStateForValue().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9842 91177308-0d34-0410-b5e6-96231b3b80d8
implementing verifySavedState().
In saveState(), use the new AllocInfo::AllocStateTy enum, and increment
Insn each time through the loop.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9617 91177308-0d34-0410-b5e6-96231b3b80d8
Prototype option to save state in a global instead of as a Constant in
the Module. (Turned off, for now, with the on/off switch welded in the off
position. You get the idea.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9500 91177308-0d34-0410-b5e6-96231b3b80d8
Make FnAllocState contain vectors of AllocInfo, instead of LLVM Constants.
Give doFinalization a method comment, and let it do the work of converting
AllocInfos to LLVM Constants.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9451 91177308-0d34-0410-b5e6-96231b3b80d8
Try to improve method comments a little.
Get rid of some excess whitespace; put braces on previous line when possible.
Add stub for method to verify the work of saveState().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9385 91177308-0d34-0410-b5e6-96231b3b80d8
Shorten the markSuggestedColorUsable method.
Add a switch for saving reg. alloc. state (coming soon).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8697 91177308-0d34-0410-b5e6-96231b3b80d8
(I also zapped printMachineCode() and printLabel() at the previous checkin,
but forgot to mention it.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8646 91177308-0d34-0410-b5e6-96231b3b80d8
PhyRegAlloc.cpp:
Don't include TargetMachine.h or TargetRegInfo.h, because these are provided
by PhyRegAlloc.h.
Merge class RegisterAllocator into class PhyRegAlloc.
Simplify & move ctor, dtor to PhyRegAlloc.h.
Make some of PhyRegAlloc's reference members into pointer members,
so they can be more easily messed with.
MarkAllocatedRegs() becomes a member method, with fewer args.
PhyRegAlloc.h:
Include Pass.h, TargetMachine.h and TargetRegInfo.h. Don't declare
TargetRegInfo forward.
Give AddedInstrns the obvious clear() method.
Make some of PhyRegAlloc's reference members into pointer members,
so they can be more easily messed with.
Add prototype for markAllocatedRegs().
Remove unused inline void constructLiveRanges().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8641 91177308-0d34-0410-b5e6-96231b3b80d8
we no longer need to find the live-before set of the delayed
branch since that set is now included the live-before/after
set of the instructions in each delay slot. Just assert that instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7796 91177308-0d34-0410-b5e6-96231b3b80d8
