[Bug tree-optimization/59817] [4.8 Regression] ICE in extract_affine_chrec with -O2 -ftree-loop-linear

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59817

--- Comment #9 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Apr 22 13:22:32 2014
New Revision: 209628

URL: http://gcc.gnu.org/viewcvs?rev=209628&root=gcc&view=rev
Log:
2014-04-22  Richard Biener  <rguenther@suse.de>

    Backport from mainline
    2014-04-14  Richard Biener  <rguenther@suse.de>

    PR tree-optimization/59817
    PR tree-optimization/60453
    * graphite-scop-detection.c (graphite_can_represent_scev): Complete
    recursion to catch all CHRECs in the scalar evolution and restrict
    the predicate for the remains appropriately.

    * gfortran.dg/graphite/pr59817.f: New testcase.
    * gcc.dg/graphite/pr59817-1.c: Likewise.
    * gcc.dg/graphite/pr59817-2.c: Likewise.

Added:
    branches/gcc-4_9-branch/gcc/testsuite/gcc.dg/graphite/pr59817-1.c
    branches/gcc-4_9-branch/gcc/testsuite/gcc.dg/graphite/pr59817-2.c
    branches/gcc-4_9-branch/gcc/testsuite/gfortran.dg/graphite/pr59817.f
Modified:
    branches/gcc-4_9-branch/gcc/ChangeLog
    branches/gcc-4_9-branch/gcc/graphite-scop-detection.c
    branches/gcc-4_9-branch/gcc/testsuite/ChangeLog