Commit Graph

14 Commits

Author SHA1 Message Date
Nadav Rotem
d0bb22bba3 LoopVectorizer: Use the "optsize" attribute to decide if we are allowed to increase the function size.
llvm-svn: 170004
2012-12-12 19:29:45 +00:00
Nadav Rotem
aeb17df802 LoopVectorizer: When -Os is used, vectorize only loops that dont require a tail loop. There is no testcase because I dont know of a way to initialize the loop vectorizer pass without adding an additional hidden flag.
llvm-svn: 169950
2012-12-12 01:11:46 +00:00
Nadav Rotem
d479a57f68 minor renaming, documentation and cleanups.
llvm-svn: 169175
2012-12-03 22:57:09 +00:00
Chandler Carruth
ed0881b2a6 Use the new script to sort the includes of every file under lib.
Sooooo many of these had incorrect or strange main module includes.
I have manually inspected all of these, and fixed the main module
include to be the nearest plausible thing I could find. If you own or
care about any of these source files, I encourage you to take some time
and check that these edits were sensible. I can't have broken anything
(I strictly added headers, and reordered them, never removed), but they
may not be the headers you'd really like to identify as containing the
API being implemented.

Many forward declarations and missing includes were added to a header
files to allow them to parse cleanly when included first. The main
module rule does in fact have its merits. =]

llvm-svn: 169131
2012-12-03 16:50:05 +00:00
Nadav Rotem
6b94c2a09b Add a loop vectorizer.
llvm-svn: 166112
2012-10-17 18:25:06 +00:00
Hal Finkel
f2dcb9a9c4 Allow BBVectorize to form non-2^n-length vectors.
The original algorithm only used recursive pair fusion of equal-length
types. This is now extended to allow pairing of any types that share
the same underlying scalar type. Because we would still generally
prefer the 2^n-length types, those are formed first. Then a second
set of iterations form the non-2^n-length types.

Also, a call to SimplifyInstructionsInBlock has been added after each
pairing iteration. This takes care of DCE (and a few other things)
that make the following iterations execute somewhat faster. For the
same reason, some of the simple shuffle-combination cases are now
handled internally.

There is some additional refactoring work to be done, but I've had
many requests for this feature, so additional refactoring will come
soon in future commits (as will additional test cases).

llvm-svn: 159330
2012-06-28 05:42:42 +00:00
Hal Finkel
3099ce9489 Allow controlling vectorization of boolean values separately from other integer types.
These are used as the result of comparisons, and often handled differently from larger integer types.

llvm-svn: 159111
2012-06-24 13:28:01 +00:00
Hal Finkel
4b06b1a0ee Allow BBVectorize to fuse compare instructions.
llvm-svn: 159088
2012-06-23 21:52:50 +00:00
Hal Finkel
f589519a67 Enhance BBVectorize to more-properly handle pointer values and vectorize GEPs.
llvm-svn: 154734
2012-04-14 07:32:43 +00:00
Hal Finkel
b2336a79f9 Add support to BBVectorize for vectorizing selects.
llvm-svn: 154700
2012-04-13 20:45:45 +00:00
Hongbin Zheng
5758f495da Refactor: Use positive field names in VectorizeConfig.
llvm-svn: 154249
2012-04-07 03:56:23 +00:00
Hongbin Zheng
d6825173d3 Introduce the VectorizeConfig class, with which we can control the behavior
of the BBVectorizePass without using command line option. As pointed out
  by Hal, we can ask the TargetLoweringInfo for the architecture specific
  VectorizeConfig to perform vectorizing with architecture specific
  information.

llvm-svn: 154096
2012-04-05 15:46:55 +00:00
Hongbin Zheng
6edbc39bd7 Add the function "vectorizeBasicBlock" which allow users vectorize a
BasicBlock in other passes, e.g. we can call vectorizeBasicBlock in the
 loop unroll pass right after the loop is unrolled.

llvm-svn: 154089
2012-04-05 08:05:16 +00:00
Hal Finkel
c34e51132c Add a basic-block autovectorization pass.
This is the initial checkin of the basic-block autovectorization pass along with some supporting vectorization infrastructure.
Special thanks to everyone who helped review this code over the last several months (especially Tobias Grosser).

llvm-svn: 149468
2012-02-01 03:51:43 +00:00