From 6cabe79eabc995c20a16ce121cb42d3409b7364c Mon Sep 17 00:00:00 2001 From: Ulrich Weigand Date: Thu, 26 Sep 2002 18:21:10 +0000 Subject: [PATCH] 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 --- gcc/ChangeLog | 6 ++++++ gcc/reload.c | 24 +++++++++++++++++++++--- 2 files changed, 27 insertions(+), 3 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index ffa7da40b89..bad6e8905ec 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2002-09-26 Ulrich Weigand + + * reload.c (dup_replacements): New function. + (find_reloads): Use it to duplicate replacements at the top level + of match_dup operands. + 2002-09-26 Miles Bader * v850.md ("length"): Change default value to 4. diff --git a/gcc/reload.c b/gcc/reload.c index e522e555ebc..39cf4e0d2eb 100644 --- a/gcc/reload.c +++ b/gcc/reload.c @@ -244,6 +244,7 @@ static enum reg_class find_valid_class PARAMS ((enum machine_mode, int, unsigned int)); static int reload_inner_reg_of_subreg PARAMS ((rtx, enum machine_mode)); static void push_replacement PARAMS ((rtx *, int, enum machine_mode)); +static void dup_replacements PARAMS ((rtx *, rtx *)); static void combine_reloads PARAMS ((void)); static int find_reusable_reload PARAMS ((rtx *, rtx, enum reg_class, enum reload_type, int, int)); @@ -1563,6 +1564,25 @@ push_replacement (loc, reloadnum, mode) r->mode = mode; } } + +/* Duplicate any replacement we have recorded to apply at + location ORIG_LOC to also be performed at DUP_LOC. + This is used in insn patterns that use match_dup. */ + +static void +dup_replacements (dup_loc, orig_loc) + rtx *dup_loc; + rtx *orig_loc; +{ + int i, n = n_replacements; + + for (i = 0; i < n; i++) + { + struct replacement *r = &replacements[i]; + if (r->where == orig_loc) + push_replacement (dup_loc, r->what, r->mode); + } +} /* Transfer all replacements that used to be in reload FROM to be in reload TO. */ @@ -3979,9 +3999,7 @@ find_reloads (insn, replace, ind_levels, live_known, reload_reg_p) { int opno = recog_data.dup_num[i]; *recog_data.dup_loc[i] = *recog_data.operand_loc[opno]; - if (operand_reloadnum[opno] >= 0) - push_replacement (recog_data.dup_loc[i], operand_reloadnum[opno], - insn_data[insn_code_number].operand[opno].mode); + dup_replacements (recog_data.dup_loc[i], recog_data.operand_loc[opno]); } #if 0 -- 2.30.2