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path: root/llvm/lib/CodeGen/RegAllocLocal.cpp
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* * Convert to use LiveVariable analysisChris Lattner2003-01-131-261/+251
| | | | | | | | | | | * 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. llvm-svn: 5219
* Rename FunctionFrameInfo to MachineFrameInfoChris Lattner2002-12-281-1/+1
| | | | llvm-svn: 5200
* * Convert to be a MachineFunctionPass instanceChris Lattner2002-12-281-196/+64
| | | | | | | | | | | | | | * 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 llvm-svn: 5195
* Adjust to simpler spill interfaceChris Lattner2002-12-251-35/+64
| | | | | | Only spill and reload caller saved registers that are actually modified. llvm-svn: 5145
* Substantial fixes to live range handling, fixing several problems, gettingChris Lattner2002-12-241-27/+35
| | | | | | strtol to not miscompile, and fixing bug: 2002-12-23-LocalRAProblem.llx llvm-svn: 5132
* * Fix several register aliasing bugsChris Lattner2002-12-181-39/+148
| | | | | | | * Add a new option to eliminate spilling of registers that are only used within a basic block. llvm-svn: 5106
* Use new reginfo interfaceChris Lattner2002-12-171-31/+7
| | | | llvm-svn: 5099
* Add prolog/epilog spills/reloads to countersChris Lattner2002-12-171-4/+7
| | | | | | Move X86 specific alignment gunk to X86 files llvm-svn: 5096
* Fix many bugs, regallocator now saves callee-save registers instead of targetChris Lattner2002-12-171-52/+163
| | | | llvm-svn: 5093
* * Fix a gross X86 hack that was intended to avoid allocating SP and BPChris Lattner2002-12-161-5/+38
| | | | | | * Implement register alias set support llvm-svn: 5082
* Initial checkin of "local" register allocator. Bugs are still present.Chris Lattner2002-12-161-0/+490
llvm-svn: 5078
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