Commit Graph

6 Commits

Author SHA1 Message Date
Dan Gohman
b40c23672b More const qualifiers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69451 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-18 17:57:20 +00:00
Dan Gohman
2ba682c7e2 LoopVR is not CFGOnly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67524 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-23 15:50:52 +00:00
Dan Gohman
46bdfb0e6b Rename ScalarEvolution's getIterationCount to getBackedgeTakenCount,
to more accurately describe what it does. Expand its doxygen comment
to describe what the backedge-taken count is and how it differs
from the actual iteration count of the loop. Adjust names and
comments in associated code accordingly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65382 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-24 18:55:53 +00:00
Torok Edwin
c83889ad90 Avoid crashing if instruction is not part of a loop.
If it is not part of a loop it is obviously invariant wrt to all loops.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58240 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-27 10:18:45 +00:00
Chris Lattner
944fac71e0 Switch the asmprinter (.ll) and all the stuff it requires over to
use raw_ostream instead of std::ostream.  Among other goodness,
this speeds up llvm-dis of kc++ with a release build from 0.85s
to 0.49s (88% faster).

Other interesting changes:
 1) This makes Value::print be non-virtual.
 2) AP[S]Int and ConstantRange can no longer print to ostream directly, 
    use raw_ostream instead.
 3) This fixes a bug in raw_os_ostream where it didn't flush itself 
    when destroyed.
 4) This adds a new SDNode::print method, instead of only allowing "dump".


A lot of APIs have both std::ostream and raw_ostream versions, it would
be useful to go through and systematically anihilate the std::ostream 
versions.

This passes dejagnu, but there may be minor fallout, plz let me know if
so and I'll fix it.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55263 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-23 22:23:09 +00:00
Nick Lewycky
a11e2eb845 Add a value range analysis that lazily computes ranges using ScalarEvolutions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52885 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-30 00:04:21 +00:00