llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-01-15 23:31:37 +00:00

History

Dan Gohman 62c939d7d5 Mark x86's V_SET0 and V_SETALLONES with isSimpleLoad, and teach X86's

foldMemoryOperand how to "fold" them, by converting them into constant-pool
loads. When they aren't folded, they use xorps/cmpeqd, but for example when
register pressure is high, they may now be folded as memory operands, which
reduces register pressure.

Also, mark V_SET0 isAsCheapAsAMove so that two-address-elimination will
remat it instead of copying zeros around (V_SETALLONES was already marked).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60461 91177308-0d34-0410-b5e6-96231b3b80d8

2008-12-03 05:21:24 +00:00

buildit

Copy the tblgen utility.

2008-11-20 00:11:57 +00:00

emacs

'Previously, the emacs tablegen mode would highlight constants even if

2008-07-23 04:49:20 +00:00

fpcmp

…

PerfectShuffle

…

TableGen