reload.c (dup_replacements): New function.
* reload.c (dup_replacements): New function. (find_reloads): Use it to duplicate replacements at the top level of match_dup operands. From-SVN: r57542
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@ -1,3 +1,9 @@
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2002-09-26 Ulrich Weigand <uweigand@de.ibm.com>
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* reload.c (dup_replacements): New function.
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(find_reloads): Use it to duplicate replacements at the top level
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of match_dup operands.
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2002-09-26 Miles Bader <miles@gnu.org>
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* v850.md ("length"): Change default value to 4.
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24
gcc/reload.c
24
gcc/reload.c
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@ -244,6 +244,7 @@ static enum reg_class find_valid_class PARAMS ((enum machine_mode, int,
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unsigned int));
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static int reload_inner_reg_of_subreg PARAMS ((rtx, enum machine_mode));
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static void push_replacement PARAMS ((rtx *, int, enum machine_mode));
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static void dup_replacements PARAMS ((rtx *, rtx *));
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static void combine_reloads PARAMS ((void));
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static int find_reusable_reload PARAMS ((rtx *, rtx, enum reg_class,
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enum reload_type, int, int));
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@ -1563,6 +1564,25 @@ push_replacement (loc, reloadnum, mode)
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r->mode = mode;
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}
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}
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/* Duplicate any replacement we have recorded to apply at
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location ORIG_LOC to also be performed at DUP_LOC.
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This is used in insn patterns that use match_dup. */
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static void
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dup_replacements (dup_loc, orig_loc)
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rtx *dup_loc;
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rtx *orig_loc;
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{
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int i, n = n_replacements;
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for (i = 0; i < n; i++)
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{
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struct replacement *r = &replacements[i];
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if (r->where == orig_loc)
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push_replacement (dup_loc, r->what, r->mode);
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}
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}
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/* Transfer all replacements that used to be in reload FROM to be in
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reload TO. */
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@ -3979,9 +3999,7 @@ find_reloads (insn, replace, ind_levels, live_known, reload_reg_p)
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{
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int opno = recog_data.dup_num[i];
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*recog_data.dup_loc[i] = *recog_data.operand_loc[opno];
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if (operand_reloadnum[opno] >= 0)
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push_replacement (recog_data.dup_loc[i], operand_reloadnum[opno],
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insn_data[insn_code_number].operand[opno].mode);
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dup_replacements (recog_data.dup_loc[i], recog_data.operand_loc[opno]);
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}
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#if 0
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