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Diffstat (limited to 'gcc/ChangeLog')
| -rw-r--r-- | gcc/ChangeLog | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 605ab53..61cd3ae 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,47 @@ +2000-10-18 Chandrakala Chavva <cchavva@redhat.com> + + * expmed.c (expand_mult): Don't do synth_mult optimization for -ftrapv. + Use smulv_optab for -ftrapv. + (expand_mult_highpart): Use unsigned multiply. + (expand_divmod): Special-case division by -1. + For EXACT_DIV_EXPR, do right shift first, then the multiply. + For complex divide, use abs with unsigned result. + * expr.c (force_operand): Use unsigned multiply. + (expand_expr): Use overflow-trapping optabs for signed types if + flag_trapv. + If flag_trapv, don't generate a recursive call with EXPAND_SUM + if the type is signed and the original call wasn't EXPAND_SUM or + EXPAND_INITIALIZER. + * expr.h (addv_optab, subv_optab, smulv_optab, sdivv_optab): Declare. + (negv_optab, absv_optab): Declare. + * flags.h (flag_trapv): Declare. + * genopinit.c (optabs): Add entries for addv_optab, subv_optab, + smulv_optab, sdivv_optab, negv_optab and absv_optab. + (gen_insn): Interpret '$P' as requiring an integer mode, + including partial integer modes. + * loop.c (emit_iv_add_mult): Use unsigned expand_mult_add. + (product_cheap_p): Use unsigned expand_mult. + * optabs.c (addv_optab, subv_optab, smulv_optab, sdivv_optab): Define. + (negv_optab, absv_optab): Define. + (expand_binop): Use overflow-trapping optabs for signed types if + flag_trapv. + Handle negv_optab libe neg_optab. + (expand_abs): Take result_unsignedp argument instead of unsignedp one. + Use overflow-trapping optabs for signed result if flag_trapv. + (expand_complex_abs): Use overflow-trapping optabs for signed types if + flag_trapv. + Don't open-code complex absolute-value operation for flag_trapv. + (init_optabs): Initialize addv_optab, subv_optab, smulv_optab, + sdivv_optab, negv_optab and absv_optab. + * toplev.c (flag_trapv): Define. + (lang_independent_options f_options): Include flag_trapv. + * tree.h (TYPE_TRAP_SIGNED): Define. + * libgcc2.c (__addvsi3, __addvdi3, __subvsi3,__subvsi3, __subvdi3, + __mulvsi3, __negvsi2, __negvdi2, __absvsi2, __absvdi2, __mulvdi3): + New functions. + * Makefile.in: add _absvsi2 _absvdi2 _addvsi3 _addvdi3 _subvsi3 + _subvdi3 _mulvsi3 _mulvdi3 _negvsi2 _negvdi2. + 2000-10-18 Geoffrey Keating <geoffk@cygnus.com> David V. Henkel-Wallace <gumby@cygnus.com> |