From: Richard Henderson <rth@gcc.gnu.org>
Date: Sat, 5 May 2001 16:38:25 +0000 (-0700)
Subject: except.c (remove_fixup_regions): Adjust REG_EH_REGION notes to the parent of the... 
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=45053eaf0b43e8a9085e20cf52e589cf0aa6aef3;p=gcc.git

except.c (remove_fixup_regions): Adjust REG_EH_REGION notes to the parent of the fixup region.

        * except.c (remove_fixup_regions): Adjust REG_EH_REGION notes
        to the parent of the fixup region.

From-SVN: r41867
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 83355b1a0a8..3b9b4a60eb0 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,4 +1,9 @@
-2001-05-05  Jakub Jelinek  <jakub@redhat.com
+2001-05-05  Richard Henderson  <rth@redhat.com>
+
+	* except.c (remove_fixup_regions): Adjust REG_EH_REGION notes
+	to the parent of the fixup region.
+
+2001-05-05  Jakub Jelinek  <jakub@redhat.com>
 
 	* gcc.c (cpp_options): Define __NO_INLINE__ unless we are honoring
 	"inline" keyword.
diff --git a/gcc/except.c b/gcc/except.c
index a0158126b2b..b21769c28f9 100644
--- a/gcc/except.c
+++ b/gcc/except.c
@@ -1101,11 +1101,30 @@ static void
 remove_fixup_regions ()
 {
   int i;
+  rtx insn, note;
+  struct eh_region *fixup;
 
+  /* Walk the insn chain and adjust the REG_EH_REGION numbers
+     for instructions referencing fixup regions.  This is only
+     strictly necessary for fixup regions with no parent, but
+     doesn't hurt to do it for all regions.  */
+  for (insn = get_insns(); insn ; insn = NEXT_INSN (insn))
+    if (INSN_P (insn)
+	&& (note = find_reg_note (insn, REG_EH_REGION, NULL))
+	&& INTVAL (XEXP (note, 0)) > 0
+	&& (fixup = cfun->eh->region_array[INTVAL (XEXP (note, 0))])
+	&& fixup->type == ERT_FIXUP)
+      {
+	if (fixup->u.fixup.real_region)
+	  XEXP (note, 1) = GEN_INT (fixup->u.fixup.real_region->region_number);
+	else
+	  remove_note (insn, note);
+      }
+
+  /* Remove the fixup regions from the tree.  */
   for (i = cfun->eh->last_region_number; i > 0; --i)
     {
-      struct eh_region *fixup = cfun->eh->region_array[i];
-
+      fixup = cfun->eh->region_array[i];
       if (! fixup)
 	continue;