llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-02-05 14:34:55 +00:00

History

Chad Rosier 478b06c980 When fast iseling a GEP, accumulate the offset rather than emitting a series of

ADDs.  MaxOffs is used as a threshold to limit the size of the offset. Tradeoffs
being: (1) If we can't materialize the large constant then we'll cause fast-isel
to bail. (2) Too large of an offset can't be directly encoded in the ADD
resulting in a MOV+ADD.  Generally not a bad thing because otherwise we would
have had ADD+ADD, but on Thumb this turns into a MOVS+MOVT+ADD. Working on a fix
for that. (3) Conversely, too low of a threshold we'll miss opportunities to 
coalesce ADDs.
rdar://10412592



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144886 91177308-0d34-0410-b5e6-96231b3b80d8

2011-11-17 07:15:58 +00:00

ARM

When fast iseling a GEP, accumulate the offset rather than emitting a series of

2011-11-17 07:15:58 +00:00

CBackend

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CellSPU

Remove histogram tests.

2011-11-12 22:39:40 +00:00

CPP

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Generic