-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 11/08/11 06:45, Richard Guenther wrote: > > This should optimize VEC_BASE that Jakub was patching by teaching > phiopt to handle some one-statement intermediate basic-blocks. > > Bootstrapped and tested on x86_64-unknown-linux-gnu, any comments? > > Thanks, Richard. > > 2011-11-08 Richard Guenther <rguent...@suse.de> > > PR tree-optimization/51030 * tree-ssa-phiopt.c > (jump_function_from_stmt): New function. (value_replacement): Use > it to handle trivial non-empty intermediate blocks. > > * gcc.dg/tree-ssa/phi-opt-6.c: New testcase. Seems like a reasonable extension of the existing value_replacement capability. We might want to tweak the comment near the top of the file to indicate the additional case we handle.
It's pretty specific to the &p->base idiom, but that's probably OK. You didn't peek to see how often the optimization triggered by chance did you? jeff -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQEcBAEBAgAGBQJOvLkjAAoJEBRtltQi2kC7hp0H/29hwfGpSdRFaK6JFanakkp1 HnpEf/YdMr8YieG5dAqR5IzBkb/lRIgwZR9mxPdXnb172IdsHfTaeuX3NyXtVPHD 0Rt/yXGQJStt0J7n3FUjOnQHvZeE05VRzxK8axSLDsNHGUH3j+FVVOT8/+hhnKi3 YfZJo6A68mfpeV/0BlPmnQJOTKnE4YSJbeBnqXg3DNcAJcIajNnj6SNUs8cXe4JB s2ERYcqrje9sWwgEQY4KueTlwqpPu2c+52Sh2JBD8E8fo+S5OWIglg23q5GmZ83i OIeM3DZaZdjtV8/oJjsSi1viJVyXXQQqiIJfs1U4EcFw+h6gRLp4HDWIoy/tprQ= =zmj+ -----END PGP SIGNATURE-----
