Re: [RFC] Contributing tree-ssa to mainline

[Dan Nicolaescu <dann at ics dot uci dot edu>]

kenner@vlsi1.ultra.nyu.edu (Richard Kenner) writes:

  > Instead, I think the tree-ssa folks should implement several new
  > optimizers that rely on higher-level information to show the utility of the
  > new infrastucture and should produce test cases (preferably in C) that
  > show the success of those optimizers.  I think that's both an easier and
  > more relevant standard.

Here one such example, a testcase from the testsuite that works
due to the SRA implementation. This is just one example, probably
more can be constructed easily.

http://gcc.gnu.org/cgi-bin/cvsweb.cgi/~checkout~/gcc/gcc/testsuite/gcc.dg/tree-ssa/Attic/sra-1.c?rev=1.1.2.1&content-type=text/plain&only_with_tag=tree-ssa-20020619-branch

All the tests in the above file pass on the tree-ssa branch.
At most 2 of the tests pass on any of the following compilers:
Intel-8.0, PGI-5.0-2, SUN Forte-7, MS-VisualC-6, DEC cc and HPPA cc
(whatever versions are installed on testdrive.hp.com).