re PR other/19696 (gcc.c-torture/execute/ieee/copysign1.c: Unsatisfied symbols: copys...

[platform/upstream/gcc.git] / gcc / ChangeLog

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+2005-01-30  Richard Henderson  <rth@redhat.com>
+
+       PR 19696
+       * optabs.c (expand_absneg_bit): Split out from expand_unop and
+       expand_abs_nojump and generalize.  Use operand_subword and
+       emit_no_conflict_block.  Support large modes.
+       (expand_abs_nojump): Use it.  Use HONOR_SIGNED_ZEROS to fall
+       back to maximum.
+       (expand_unop): Likewise.  Use HONOR_SIGNED_ZEROS to fall back
+       negation to subtraction.
+       (expand_copysign): Check that the format has signed zeros.
+       Use operand_subword and emit_no_conflict_block.  Support large modes.
+
 2005-01-30  Daniel Berlin  <dberlin@dberlin.org>
 
        Fix PR tree-optimization/19624