[Bug middle-end/33088] [4.1/4.2/4.3 Regression] spurious exceptions with -ffloat-store

[ebotcazou at gcc dot gnu dot org]

------- Comment #13 from ebotcazou at gcc dot gnu dot org  2007-12-13 21:49 -------
Subject: Bug 33088

Author: ebotcazou
Date: Thu Dec 13 21:49:09 2007
New Revision: 130917

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=130917
Log:
        PR middle-end/33088
        * gimplify.c (gimplify_modify_expr_complex_part): Add note to comment.
        * tree-complex.c (init_dont_simulate_again): Return true if there are
        uninitialized loads generated by gimplify_modify_expr_complex_part.
        * tree-gimple.c (is_gimple_reg_type): Return false for complex types
        if not optimizing.
        * tree-ssa.c (ssa_undefined_value_p): New predicate extracted from...
        (warn_uninit): ...here.  Use ssa_undefined_value_p.
        * tree-ssa-pre.c (is_undefined_value): Delete.
        (phi_translate_1): Use ssa_undefined_value_p.
        (add_to_exp_gen): Likewise.
        (make_values_for_stmt): Likewise.
        * tree-flow.h (ssa_undefined_value_p): Declare.


Added:
    trunk/gcc/testsuite/gcc.dg/complex-5.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/gimplify.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/uninit-13.c
    trunk/gcc/tree-complex.c
    trunk/gcc/tree-flow.h
    trunk/gcc/tree-gimple.c
    trunk/gcc/tree-ssa-pre.c
    trunk/gcc/tree-ssa.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33088