[Bug rtl-optimization/38245] [4.4 Regression] stack corruption when a call is removed but not the outgoing argument pushes

[jakub at gcc dot gnu dot org]

------- Comment #6 from jakub at gcc dot gnu dot org  2008-12-01 14:36 -------
Subject: Bug 38245

Author: jakub
Date: Mon Dec  1 14:34:51 2008
New Revision: 142317

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=142317
Log:
        PR rtl-optimization/38245
        * tree-vrp.c (abs_extent_range): New function.
        (extract_range_from_binary_expr): Compute range
        for *_DIV_EXPR even if vr1 is VR_VARYING, VR_ANTI_RANGE
        or includes zero or if vr1 is VR_RANGE and op0 has some
        other range.

        * gcc.dg/pr38245-1.c: New test.
        * gcc.dg/pr38245-2.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/pr38245-1.c
    trunk/gcc/testsuite/gcc.dg/pr38245-2.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vrp.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38245