Evan Cheng 9c3f6f486e - Add a hook for target to determine whether an instruction def is ...

"long latency" enough to hoist even if it may increase spilling. Reloading
  a value from spill slot is often cheaper than performing an expensive
  computation in the loop. For X86, that means machine LICM will hoist
  SQRT, DIV, etc. ARM will be somewhat aggressive with VFP and NEON
  instructions.
- Enable register pressure aware machine LICM by default.

llvm-svn: 116781

2010-10-19 00:55:07 +00:00

..

llvm

- Add a hook for target to determine whether an instruction def is

2010-10-19 00:55:07 +00:00

llvm-c

remove dead prototype, PR8351

2010-10-11 17:44:22 +00:00