re PR tree-optimization/90278 (ICE: verify_gimple failed (error: statement…

re PR tree-optimization/90278 (ICE: verify_gimple failed (error: statement marked for throw, but doesn't))

2019-04-29  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/90278
	* tree-ssa-forwprop.c (pass_forwprop::execute): Transfer/clean
	EH on comparison simplification.

	* gcc.dg/torture/pr90278.c: New testcase.

From-SVN: r270657

gcc/ChangeLog

+2019-04-29  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/90278
+	* tree-ssa-forwprop.c (pass_forwprop::execute): Transfer/clean
+	EH on comparison simplification.
+
 2019-04-29  Jason Merrill  <jason@redhat.com>
 
 	PR c++/82081 - tail call optimization breaks noexcept

gcc/testsuite/ChangeLog

+2019-04-29  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/90278
+	* gcc.dg/torture/pr90278.c: New testcase.
+
 2019-04-27  Jakub Jelinek  <jakub@redhat.com>
 
 	PR c++/90173

gcc/testsuite/gcc.dg/torture/pr90278.c

+/* { dg-do compile } */
+/* { dg-additional-options "-fexceptions -fnon-call-exceptions" } */
+
+double
+hc (void)
+{
+  double dp = 0.0;
+  double ek[1];
+
+  ek[0] = 1.0 / dp < 0.0;
+
+  return ek[0];
+}

gcc/tree-ssa-forwprop.c

@@ -2496,6 +2496,8 @@ pass_forwprop::execute (function *fun)
 		  {
 		    int did_something;
 		    did_something = forward_propagate_into_comparison (&gsi);
+		    if (maybe_clean_or_replace_eh_stmt (stmt, gsi_stmt (gsi)))
+		      bitmap_set_bit (to_purge, bb->index);
 		    if (did_something == 2)
 		      cfg_changed = true;
 		    changed = did_something != 0;