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As there will be more than one gfc_ss struct pointing to a single gfc_ss_info, it needs to be reference counted. This introduces reference counting. OK?
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diff --git a/trans-array.c b/trans-array.c index 663d12e..abb6db2 100644 --- a/trans-array.c +++ b/trans-array.c @@ -489,6 +489,11 @@ gfc_free_ss_chain (gfc_ss * ss) static void free_ss_info (gfc_ss_info *ss_info) { + ss_info->refcount--; + if (ss_info->refcount > 0) + return; + + gcc_assert (ss_info->refcount == 0); free (ss_info); } @@ -532,6 +537,7 @@ gfc_get_array_ss (gfc_ss *next, gfc_expr *expr, int dimen, gfc_ss_type type) int i; ss_info = gfc_get_ss_info (); + ss_info->refcount++; ss_info->type = type; ss_info->expr = expr; @@ -556,6 +562,7 @@ gfc_get_temp_ss (tree type, tree string_length, int dimen) int i; ss_info = gfc_get_ss_info (); + ss_info->refcount++; ss_info->type = GFC_SS_TEMP; ss_info->string_length = string_length; ss_info->data.temp.type = type; @@ -580,6 +587,7 @@ gfc_get_scalar_ss (gfc_ss *next, gfc_expr *expr) gfc_ss_info *ss_info; ss_info = gfc_get_ss_info (); + ss_info->refcount++; ss_info->type = GFC_SS_SCALAR; ss_info->expr = expr; diff --git a/trans.h b/trans.h index c35b1ae..02f2b42 100644 --- a/trans.h +++ b/trans.h @@ -185,6 +185,7 @@ gfc_ss_type; typedef struct gfc_ss_info { + int refcount; gfc_ss_type type; gfc_expr *expr; tree string_length;
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