Chris Lattner cf078f2b20 Allow loop-idiom to run on multiple BB loops, but still only scan the loop ... header for now for memset/memcpy opportunities. It turns out that loop-rotate is successfully rotating loops, but *DOESN'T MERGE THE BLOCKS*, turning "for loops" into 2 basic block loops that loop-idiom was ignoring. With this fix, we form many *many* more memcpy and memsets than before, including on the "history" loops in the viterbi benchmark, which look like this: for (j=0; j<MAX_history; ++j) { history_new[i][j+1] = history[2*i][j]; } Transforming these loops into memcpy's speeds up the viterbi benchmark from 11.98s to 3.55s on my machine. Woo. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122685 91177308-0d34-0410-b5e6-96231b3b80d8		2011-01-02 07:58:36 +00:00
..
Hello	Since the Hello pass is built as a loadable dynamic library, don't try to convert it to new-style registration yet.	2010-10-07 00:31:16 +00:00
InstCombine	don't lose TD info	2010-12-25 20:52:04 +00:00
Instrumentation	Get rid of static constructors for pass registration. Instead, every pass exposes an initializeMyPassFunction(), which	2010-10-19 17:21:58 +00:00
IPO	Remove functions from the FnSet when one of their callee's is being merged. This	2011-01-02 02:46:33 +00:00
Scalar	Allow loop-idiom to run on multiple BB loops, but still only scan the loop	2011-01-02 07:58:36 +00:00
Utils	Simplify this pass by using a depth-first iterator to ensure that all	2010-12-31 17:49:05 +00:00
Makefile	Revert r100896 and around - this breaks the only mingw32 buildbot we have.	2010-04-15 19:51:42 +00:00