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| author | Richard Henderson <rth@gcc.gnu.org> | 2002-05-06 22:44:26 -0700 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2002-05-06 22:44:26 -0700 |
| commit | 818c0c94935c342158a0106db55eba9317cc913f (patch) | |
| tree | af5dd9b0c303db6988e7f7897689bf5a11fa2377 /gcc | |
| parent | 486e8c0cd34a187feb4adf908c183274a93cb654 (diff) | |
| download | gcc-818c0c94935c342158a0106db55eba9317cc913f.zip gcc-818c0c94935c342158a0106db55eba9317cc913f.tar.gz gcc-818c0c94935c342158a0106db55eba9317cc913f.tar.bz2 | |
re PR c++/6212 (g++ testsuite EH regressions for irix6 -mabi=64)
PR c++/6212
* expr.c (highest_pow2_factor_for_type): New.
(expand_assignment): Use it.
From-SVN: r53249
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 16 | ||||
| -rw-r--r-- | gcc/expr.c | 19 |
2 files changed, 29 insertions, 6 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index c13d5e7..0c54cde 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,8 +1,14 @@ +2002-05-06 Richard Henderson <rth@redhat.com> + + PR c++/6212 + * expr.c (highest_pow2_factor_for_type): New. + (expand_assignment): Use it. + 2002-05-06 Aldy Hernandez <aldyh@redhat.com> - * config/rs6000/rs6000.md ("altivec_mtvscr"): Change to - unspec_volatile. - ("altivec_mfvscr"): Same. + * config/rs6000/rs6000.md ("altivec_mtvscr"): Change to + unspec_volatile. + ("altivec_mfvscr"): Same. 2002-05-06 Janis Johnson <janis187@us.ibm.com> @@ -26,7 +32,7 @@ PR opt/3995 * fold-const.c (sign_bit_p): New function. (fold) [EQ_EXPR]: Use this to convert (A & C) == 0 into A >= 0 and - (A & C) != 0 into A < 0, when constant C is the sign bit of A's type. + (A & C) != 0 into A < 0, when constant C is the sign bit of A's type. Reapply fold when converting (A & C) == C into (A & C) != 0. (fold_binary_op_with_conditional_arg): Fix typo in comment. @@ -85,7 +91,7 @@ doc: 2002-05-06 Catherine Moore <clm@redhat.com> * config/v850/v850.c (compute_register_save_size): Make sure - to count all of the registers that will be saved. + to count all of the registers that will be saved. Mon May 6 18:03:11 CEST 2002 Jan Hubicka <jh@suse.cz> @@ -147,6 +147,7 @@ static rtx store_field PARAMS ((rtx, HOST_WIDE_INT, int)); static rtx var_rtx PARAMS ((tree)); static HOST_WIDE_INT highest_pow2_factor PARAMS ((tree)); +static HOST_WIDE_INT highest_pow2_factor_for_type PARAMS ((tree, tree)); static int is_aligning_offset PARAMS ((tree, tree)); static rtx expand_increment PARAMS ((tree, int, int)); static void do_jump_by_parts_greater PARAMS ((tree, int, rtx, rtx)); @@ -3707,7 +3708,8 @@ expand_assignment (to, from, want_value, suggest_reg) } to_rtx = offset_address (to_rtx, offset_rtx, - highest_pow2_factor (offset)); + highest_pow2_factor_for_type (TREE_TYPE (to), + offset)); } if (GET_CODE (to_rtx) == MEM) @@ -5934,6 +5936,21 @@ highest_pow2_factor (exp) return 1; } + +/* Similar, except that it is known that the expression must be a multiple + of the alignment of TYPE. */ + +static HOST_WIDE_INT +highest_pow2_factor_for_type (type, exp) + tree type; + tree exp; +{ + HOST_WIDE_INT type_align, factor; + + factor = highest_pow2_factor (exp); + type_align = TYPE_ALIGN (type) / BITS_PER_UNIT; + return MAX (factor, type_align); +} /* Return an object on the placeholder list that matches EXP, a PLACEHOLDER_EXPR. An object "matches" if it is of the type of the |