[PATCH] Added instruction combine to transform few more negative values addition to subtraction

Dinesh Dwivedi dinesh.d at samsung.com
Thu May 15 08:10:40 PDT 2014

Updated patch to return fully transformed value.

Added additional transforms
  (x + (~(y | c) + 1)   -->   x - (y | c) if c is even
  (x + (~((y >> z) | c) + 1)   -->   x - ((y>>z) | c)  if c is even

Is it ok to loose names of instruction during transforms. This patch returns instruction names as %1, %2


-------------- next part --------------
A non-text attachment was scrubbed...
Name: D3733.9444.patch
Type: text/x-patch
Size: 7192 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20140515/3032d059/attachment.bin>

More information about the llvm-commits mailing list