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Author SHA1 Message Date
Benjamin Kramer f61f60d97a BBVectorize: Simplify code, no functionality change. 
Also silences warnings about bodyless for loops.

llvm-svn: 149612
 2012-02-02 18:52:15 +00:00
Hal Finkel 8cf51b871c Minor changes from review. 
As suggested by Nick Lewycky, the tree traversal queues have been changed to SmallVectors and the associated loops have been rotated. Also, an 80-col violation was fixed.

llvm-svn: 149607
 2012-02-02 17:29:39 +00:00
Hal Finkel 0f3298e8d4 Vectorize long blocks in groups. 
Long basic blocks with many candidate pairs (such as in the SHA implementation in Perl 5.14; thanks to Roman Divacky for the example) used to take an unacceptably-long time to compile. Instead, break long blocks into groups so that no group has too many candidate pairs.

llvm-svn: 149595
 2012-02-02 06:14:56 +00:00
NAKAMURA Takumi e1d61f666b BBVectorize.cpp: Try to fix MSVC build. map::iterator and multimap::iterator are incompatible. 
llvm-svn: 149475
 2012-02-01 06:11:58 +00:00
Hal Finkel 8a3aebe5e0 A few of the changes suggested in code review (by Nick Lewycky) 
llvm-svn: 149472
 2012-02-01 05:51:45 +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