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path: root/include/llvm/CodeGen/SimpleRegisterCoalescing.h
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2007-11-05Move SimpleRegisterCoalescing.h to lib/CodeGen since there is now a commonEvan Cheng
register coalescer interface: RegisterCoalescing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43714 91177308-0d34-0410-b5e6-96231b3b80d8
2007-11-01- Coalesce extract_subreg when both intervals are relatively small.Evan Cheng
- Some code clean up. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43606 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-18Really fix PR1734. Carefully track which register uses are sub-register uses byEvan Cheng
traversing inverse register coalescing map. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43118 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-16Code clean up.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43026 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-12EXTRACT_SUBREG coalescing support. The coalescer now treats EXTRACT_SUBREG likeEvan Cheng
(almost) a register copy. However, it always coalesced to the register of the RHS (the super-register). All uses of the result of a EXTRACT_SUBREG are sub- register uses which adds subtle complications to load folding, spiller rewrite, etc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42899 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-06Pluggable coalescers inplementation.David Greene
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41743 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-28Recover most of the compile time regression due to recent live interval changes.Evan Cheng
1. Eliminate the costly live interval "swapping". 2. Change ValueNumberInfo container from SmallVector to std::vector. The former performs slowly when the vector size is very large. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41536 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-27Add explicit keywords and remove spurious trailing semicolons.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41482 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-09missed this oneGabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38454 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-09fix typosGabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38453 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-08Factor live variable analysis so it does not do register coalescingDavid Greene
simultaneously. Move that pass to SimpleRegisterCoalescing. This makes it easier to implement alternative register allocation and coalescing strategies while maintaining reuse of the existing live interval analysis. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37520 91177308-0d34-0410-b5e6-96231b3b80d8
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