Andrew Trick f44aadf0fd indvars: Prototyping Sign/ZeroExtend elimination without canonical IVs. ...

No functionality enabled by default. Use -disable-iv-rewrite.
Extended IVUsers to keep track of the phi that represents the users' IV.
Added the WidenIV transform to replace a narrow IV with a wide IV
by doing a one-for-one replacement of IV users instead of expanding the
SCEV expressions. [sz]exts are removed and truncs are inserted.

llvm-svn: 131744

2011-05-20 18:25:42 +00:00

..

llvm

indvars: Prototyping Sign/ZeroExtend elimination without canonical IVs.

2011-05-20 18:25:42 +00:00

llvm-c

Declare this function here so that it doesn't get C++ mangling.

2011-05-15 07:20:34 +00:00