[Bug optimization/11937] [3.3 Regression] bogus warning while compiling gcc/function.c

[uwe at ptc dot spbu dot ru]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11937



------- Additional Comments From uwe at ptc dot spbu dot ru  2003-08-16 02:18 -------
Subject: Re:  [3.3 Regression] bogus warning while compiling gcc/function.c

The warning goes away after applying

expr.c:		1.561, 1.562
fold-const.c:	1.273, 1.276
tree.h:		1.419

to the gcc-3.3 branch (patches applied cleanly, with offset).

Relevant changelog entries:

2003-07-04  Jeff Law  <law@redhat.com>

        PR c/11428
        * expr.c (do_store_flag): Pass in the correct result type
        when calling fold_single_bit_test.
        * fold-const.c (fold_single_bit_test): Use result_type for the
        result when folding a sign bit test.

2003-07-02  Jeff Law  <law@redhat.com>

        * expr.c (do_store_flag): Remove special case folding for
        single bit tests.  Instead call back into the commonized folder
        routine.
        * fold-const.c (fold_single_bit_test): New function, mostly
        extracted from do_store_flag, with an additional case extracted
        from fold.
        (fold): Call fold_single_bit_test appropriately.
        * tree.h (fold_single_bit_test): Prototype.

Thanks!