backport: re PR c/91192 (non-deterministic ICE on invalid)

	Backported from mainline
	2019-07-31  Jakub Jelinek  <jakub@redhat.com>

	PR c/91192
	* c-parser.c (c_parser_sizeof_expression): Call set_c_expr_source_range
	even if finish is UNKNOWN_LOCATION, just use start as finish in that
	case.

From-SVN: r273967

diff --git a/gcc/c/ChangeLog b/gcc/c/ChangeLog
index 0411099523c96af48f21b01c6a62328daed6f303..9455a8f68e103e0d86a0843f24145197f7f6409f 100644 (file)
--- a/gcc/c/ChangeLog
+++ b/gcc/c/ChangeLog
@@ -1,3 +1,13 @@
+2019-08-01  Jakub Jelinek  <jakub@redhat.com>
+
+       Backported from mainline
+       2019-07-31  Jakub Jelinek  <jakub@redhat.com>
+
+       PR c/91192
+       * c-parser.c (c_parser_sizeof_expression): Call set_c_expr_source_range
+       even if finish is UNKNOWN_LOCATION, just use start as finish in that
+       case.
+
 2019-07-20  Richard Sandiford  <richard.sandiford@arm.com>
 
        Backport from mainline

diff --git a/gcc/c/c-parser.c b/gcc/c/c-parser.c
index 854cd6ce8c60ef096f61f91326123f559a85a533..f8d1fb3fa7814d1625b497ecd5074c487674fa4d 100644 (file)
--- a/gcc/c/c-parser.c
+++ b/gcc/c/c-parser.c
@@ -7471,8 +7471,9 @@ c_parser_sizeof_expression (c_parser *parser)
        error_at (expr_loc, "%<sizeof%> applied to a bit-field");
       result = c_expr_sizeof_expr (expr_loc, expr);
     }
-  if (finish != UNKNOWN_LOCATION)
-    set_c_expr_source_range (&result, start, finish);
+  if (finish == UNKNOWN_LOCATION)
+    finish = start;
+  set_c_expr_source_range (&result, start, finish);
   return result;
 }