------- Comment #9 from bernds at gcc dot gnu dot org 2010-06-09 20:20 ------- Created an attachment (id=20880) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20880&action=view) A new version of Jim's patch
Here's what I've done with it so far. I've changed the new tree code to be a proper gimple operation, which meant extending all sorts of gimple code to handle ternary operations. tree-ssa-math-opts runs late enough that I don't think we need to handle them in most passes, so I've turned some existing functions into wrappers that continue to present a two-operand interface. The other thing I've done is to restructure the pass a little to avoid the second loop over all the insns. I've changed the ARM backend to take advantage of it. Regression tests on ARM look fine (although I've had to change one of the testcases which didn't expect widen-macc to be generated). What do you think? Please let me know what your MIPS tests turned up. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43902
