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path: root/lib/CodeGen/RegAllocLocal.cpp
AgeCommit message (Collapse)Author
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
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
2002-12-28* 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
2002-12-25Adjust 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
2002-12-24Substantial 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
2002-12-18* 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
2002-12-17Use 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
2002-12-16Initial 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
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