[Bug tree-optimization/33766] [4.1/4.2/4.3 Regression] ICE in bsi_for_stmt at tree-cfg.c when using -O1 -ftree-loop-linear

[spop at gcc dot gnu dot org]

------- Comment #4 from spop at gcc dot gnu dot org  2007-10-19 19:02 -------
Subject: Bug 33766

Author: spop
Date: Fri Oct 19 19:01:58 2007
New Revision: 129494

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=129494
Log:
2007-10-19  Sebastian Pop  <[EMAIL PROTECTED]>

        PR tree-optimization/23820
        PR tree-optimization/24309
        PR tree-optimization/33766
        * testsuite/gcc.dg/tree-ssa/pr23820.c: New.
        * testsuite/gcc.dg/tree-ssa/pr24309.c: New.
        * testsuite/gcc.dg/tree-ssa/pr33766.c: New.
        * testsuite/gcc.dg/tree-ssa/ltrans-3.c: XFAILed.
        * tree-loop-linear.c (perfect_loop_nest_depth): New.
        (linear_transform_loops): Use perfect_loop_nest_depth.
        * lambda-code.c (perfect_nest_p): Outer loops in perfect nests 
        should have a single condition: their exit.


Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/pr23820.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/pr24309.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/pr33766.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/lambda-code.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/ltrans-3.c
    trunk/gcc/tree-loop-linear.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33766