re PR tree-optimization/48611 (ICE: SIGSEGV in remap_eh_region_nr…

re PR tree-optimization/48611 (ICE: SIGSEGV in remap_eh_region_nr (tree-inline.c:1194) with -Os -fopenmp -fexceptions -fno-tree-ccp -fno-tree-copy-prop on basic code)

	PR tree-optimization/48611
	* tree-eh.c (note_eh_region_may_contain_throw): Don't propagate
	beyond ERT_MUST_NOT_THROW region.

From-SVN: r172783

gcc/ChangeLog

+2011-04-20  Jakub Jelinek  <jakub@redhat.com>
+
+	PR tree-optimization/48611
+	* tree-eh.c (note_eh_region_may_contain_throw): Don't propagate
+	beyond ERT_MUST_NOT_THROW region.
+
 2011-04-20  Catherine Moore  <clm@codesourcery.com>
 
 	* config/mips/mips.opt (mfix-24k): New.

gcc/tree-eh.c

@@ -849,6 +849,8 @@ note_eh_region_may_contain_throw (eh_region region)
 {
   while (bitmap_set_bit (eh_region_may_contain_throw_map, region->index))
     {
+      if (region->type == ERT_MUST_NOT_THROW)
+	break;
       region = region->outer;
       if (region == NULL)
 	break;