llvm/lib/Transforms
Chris Lattner 421fa9e32e Teach jump threading some more simple tricks:
1) have it fold "br undef", which does occur with
   surprising frequency as jump threading iterates.
2) teach j-t to delete dead blocks.  This removes the successor
   edges, reducing the in-edges of other blocks, allowing 
   recursive simplification.
3) Fold things like:
     br COND, BBX, BBY
  BBX:
     br COND, BBZ, BBW

   which also happens because jump threading iterates.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60470 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-03 07:48:08 +00:00
..
Hello Initial support for the CMake build system. 2008-09-22 01:08:49 +00:00
Instrumentation Use Function::getEntryBlock() instead of Function::front(), for clarity. 2008-10-21 03:10:28 +00:00
IPO Fix error where it wasn't getting the correct caller function. 2008-11-21 00:09:21 +00:00
Scalar Teach jump threading some more simple tricks: 2008-12-03 07:48:08 +00:00
Utils third time is the charm. 2008-12-03 07:45:15 +00:00
Makefile remove attribution from lib Makefiles. 2007-12-29 20:09:26 +00:00