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2003-01-13* Convert to use LiveVariable analysisChris Lattner
* Convert to use PHIElimination pass * Don't spill values which have just been reloaded (big win reducing spills) * Add experimental support for eliminating spills before TwoAddress instructions. It currently is broken so it is #ifdef'd out. * Use new "is terminator" flag on instructions instead of looking for branches and returns explicitly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5219 91177308-0d34-0410-b5e6-96231b3b80d8
2003-01-13Convert to MachineFunctionPassChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5218 91177308-0d34-0410-b5e6-96231b3b80d8
2003-01-13Add support for 3 new forms of MachineOperandChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5217 91177308-0d34-0410-b5e6-96231b3b80d8
2003-01-13Add support for constant poolChris Lattner
Add helper methods for MachineFrameInfo git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5216 91177308-0d34-0410-b5e6-96231b3b80d8
2003-01-13Add support for global address by string and constant pool valuesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5215 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-29More renamings of Target/Machine*Info to Target/Target*InfoChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5204 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-29Rename MachineOptInfo to TargetoptInfoChris Lattner
Rename MachineCacheInfo to TargetCacheInfo git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5203 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-28 Rename FunctionFrameInfo to MachineFrameInfoChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5200 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-28Rename MachineFrameInfo to TargetFrameInfo.hChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5199 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-28Initial checkin of Prolog/Epilog code inserter, which is an important partChris Lattner
of the abstract frame representation git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5198 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-28* Convert to be a MachineFunctionPass instanceChris Lattner
* Use new FunctionFrameInfo object to manage stack slots instead of doing it directly * Adjust to new MRegisterInfo API * Don't take a TM as a ctor argument * Don't keep track of which callee saved registers are modified * Don't emit prolog/epilog code or spill/restore code for callee saved regs * Use new allocation_order_begin/end iterators to simplify dramatically the logic for picking registers to allocate * Machine PHI nodes can no longer contain constant arguments * Use a bitvector to keep track of registers used instead of a set * Fix problem where explicitly referenced registers would be added to regsused set and never removed git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5196 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-28* Convert to be a MachineFunctionPass instanceChris Lattner
* Use new FunctionFrameInfo object to manage stack slots instead of doing it directly * Adjust to new MRegisterInfo API * Don't take a TM as a ctor argument * Don't keep track of which callee saved registers are modified * Don't emit prolog/epilog code or spill/restore code for callee saved regs * Use new allocation_order_begin/end iterators to simplify dramatically the logic for picking registers to allocate * Machine PHI nodes can no longer contain constant arguments git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5195 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-28* Add printing support for FrameIndex operandsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5194 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-28* A bunch of functionality and data was removed from MachineFunction and putChris Lattner
into a new MachineFunctionInfo class * Implement new FunctionFrameInfo class git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5193 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-28Frame info moved out of MachineFunction into a seperate objectChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5192 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-25Adjust to simpler spill interfaceChris Lattner
Only spill and reload caller saved registers that are actually modified. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5145 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-25Adjustments to work with the simpler spill interfaceChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5144 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-25Remove dependency on SSARegMap.h by MachineFunction.hChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5143 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-24Substantial fixes to live range handling, fixing several problems, gettingChris Lattner
strtol to not miscompile, and fixing bug: 2002-12-23-LocalRAProblem.llx git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5132 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-23Fix compilation on GCC 2.96Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5113 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-18* Fix several register aliasing bugsChris Lattner
* Add a new option to eliminate spilling of registers that are only used within a basic block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5106 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-18Implicit defs/uses list may be empty.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5103 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-17Use new reginfo interfaceChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5099 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-17Add prolog/epilog spills/reloads to countersChris Lattner
Move X86 specific alignment gunk to X86 files git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5096 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-17Fix many bugs, regallocator now saves callee-save registers instead of targetChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5093 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-16* Fix a gross X86 hack that was intended to avoid allocating SP and BPChris Lattner
* Implement register alias set support git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5082 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-16Keep the stack frame aligned.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5081 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-16Initial checkin of "local" register allocator. Bugs are still present.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5078 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-16Rename createSimpleX86RegisterAllocator to createSimpleRegisterAllocator.Chris Lattner
Remvoe some dead code git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5070 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15Some simpliciations to the spill/reload interfaceChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5067 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15Simplify PHI node elimination significantly by doing it as a prepass toChris Lattner
register allocation git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5066 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15Variety of small or trivial simplifications to the code, completely eliminatedChris Lattner
the dependence on PhysRegClassMap git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5064 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15Remove unused savePhysRegToStack methodChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5061 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15Localize a map, remove anotherChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5060 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15Give simple reg allocator a nice Pass NameChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5058 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15Add a big assert making sure 2 address instructions are formed rightChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5057 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15Fix a problem that occurs when PHI nodes have multiple entries for the same ↵Chris Lattner
predecessor git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5055 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15Grab bag of minor cleanups. Export some statistics about the number ofChris Lattner
spills and reloads emitted git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5054 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15Implement printing of MBB argumentsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5053 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15Simplify interfaces used by regalloc to insert codeChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5052 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15* Simplify code a bit by breaking the PHI node handling stuff out into a ↵Chris Lattner
seperate function from normal regalloc code * Make the regalloc for a block a function instead of part of runOnMachineBB, which makes it easier to see what's going on in runOnMBB. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5051 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15* Remove some unneccesary instance variablesChris Lattner
* Make allocateStackSpaceFor only allocate the right amount of space git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5048 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15pull inverse reg class mapping into a class that is sharable and out of theChris Lattner
target register description classes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5045 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15Prune #includesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5044 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15Remove extraneous #includes, perform FIXMEChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5043 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15Fix borkness with not using MachineBasicBlocks in PHI nodesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5035 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-13Fixed a bug where moves due to phis were being neglected.Misha Brukman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5019 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-13Need to insert all moves due to PHI nodes before *ALL* jumps in a predecessorMisha Brukman
basic block, as there could be multiple. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5016 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-13This should be more correct: invalidates physical registers that are used inMisha Brukman
an instruction to avoid using them to allocate to other virtual registers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5013 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-13Fixed bug with running out of registers. Also, reinstated namespace whichMisha Brukman
disappeared during the last checkin. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5007 91177308-0d34-0410-b5e6-96231b3b80d8
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