Commit Graph

10 Commits

Author SHA1 Message Date
Matt Pharr
4ab982bc16 Various AVX fixes (found by inspection).
Emit calls to masked_store, not masked_store_blend, when handling
  masked stores emitted by the frontend.
Fix bug in binary8to16 macro in builtins.m4
Fix bug in 16-wide version of __reduce_add_float
Remove blend function implementations for masked_store_blend for
  AVX; just forward those on to the corresponding real masked store
  functions.
2011-08-26 12:58:02 -07:00
Matt Pharr
606cbab0d4 Performance improvements for global min/max atomics. Issue #57.
Compute a "local" min/max across the active program instances and 
  then do a single atomic memory op.
Added a few tests to exercise global min/max atomics (which were
  previously untested!)
2011-08-26 10:35:24 -07:00
Matt Pharr
7756265503 Add double-pumped AVX target (i.e., run 16-wide). Not yet tested. 2011-08-20 11:28:22 +01:00
Matt Pharr
87cf05e0d2 Improve performance of 64-bit reduce_equal implementations.
Just pulling out the elements and doing a set of scalar equality tests
is the best approach for those (nearly 2x better than the rotate and
vector equality check that we use for 32-bit stuff).
2011-08-14 07:39:05 +01:00
Matt Pharr
ff608eef71 Change reduce_equal to return false if no instances are executing 2011-08-14 07:11:45 +01:00
Matt Pharr
f868a63064 Add support for scan operations across program instances (add, and, or). 2011-08-13 20:11:41 +01:00
Matt Pharr
8c534d4d74 Add reduce_equal() function to standard library. 2011-08-10 15:55:55 -07:00
Matt Pharr
0ac4f7b620 Add various prefetch functions to the standard library. 2011-08-03 13:31:45 -07:00
Matt Pharr
a4bb6b5520 Add new example with implementation of Perlin Noise
~4.2x speedup versus serial on OSX / gcc.
~2.9x speedup versus serial on Windows / MSVC.
2011-08-01 10:33:18 +01:00
Matt Pharr
a552927a6a Cleanup implementation of target builtins code.
- Renamed stdlib-sse.ll to builtins-sse.ll (etc.) in an attempt to better indicate
the fact that the stuff in those files has a role beyond implementing stuff for
the standard library.
- Moved declarations of the various __pseudo_* functions from being done with LLVM
API calls in builtins.cpp to just straight up declarations in LLVM assembly
language in builtins.m4.  (Much less code to do it this way, and more clear what's
going on.)
2011-08-01 05:58:43 +01:00