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re PR c++/86546 (ICE on invalid: tree_class_check_failed()) 

/cp
2018-08-28  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/86546
	* decl.c (finish_case_label): If the type is erroneous early
	return error_mark_node.

/testsuite
2018-08-28  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/86546
	* g++.dg/other/switch4.C: New.

From-SVN: r263921
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Paolo Carlini 2018-08-28 15:01:15 +00:00 committed by Paolo Carlini
parent 1978408086
commit f30bafb7fc
4 changed files with 19 additions and 0 deletions
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6
gcc/cp/ChangeLog
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@ -1,3 +1,9 @@
2018-08-28 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/86546
* decl.c (finish_case_label): If the type is erroneous early
return error_mark_node.
2018-08-27 David Malcolm <dmalcolm@redhat.com>
PR c++/63392

2
gcc/cp/decl.c
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@ -3662,6 +3662,8 @@ finish_case_label (location_t loc, tree low_value, tree high_value)
return error_mark_node;
type = SWITCH_STMT_TYPE (switch_stack->switch_stmt);
if (type == error_mark_node)
return error_mark_node;
low_value = case_conversion (type, low_value);
high_value = case_conversion (type, high_value);

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2018-08-28 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/86546
* g++.dg/other/switch4.C: New.
2018-08-28 Richard Biener <rguenther@suse.de>
PR tree-optimization/87124

6
gcc/testsuite/g++.dg/other/switch4.C Normal file
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@ -0,0 +1,6 @@
// PR c++/86546
class a b; // { dg-error "aggregate" }
void c() {
switch () // { dg-error "expected" }
case b // { dg-error "expected" }