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gimple-parser.c (c_parser_gimple_postfix_expression): Check return value of c_parser_parse_ssa_name against error_mark_node and emit...

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2017-02-19  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

	* gimple-parser.c (c_parser_gimple_postfix_expression): Check return
	value of c_parser_parse_ssa_name against error_mark_node and emit
	error if ssa name is anonymous and written as default definition.

From-SVN: r245571
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Prathamesh Kulkarni 2017-02-19 09:14:38 +00:00 committed by Prathamesh Kulkarni
parent eab1f16915
commit 41d1b0b1ae
2 changed files with 15 additions and 0 deletions
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6
gcc/c/ChangeLog
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@ -1,3 +1,9 @@
2017-02-19 Prathamesh Kulkarni <prathamesh.kulkarni@linaro.org>
* gimple-parser.c (c_parser_gimple_postfix_expression): Check return
value of c_parser_parse_ssa_name against error_mark_node and emit
error if ssa name is anonymous and written as default definition.
2017-02-19 Prathamesh Kulkarni <prathamesh.kulkarni@linaro.org>
* gimple-parser.c (c_parser_gimple_postfix_expression): Handle

9
gcc/c/gimple-parser.c
View File

@ -886,6 +886,8 @@ c_parser_gimple_postfix_expression (c_parser *parser)
c_parser_consume_token (parser);
expr.value = c_parser_parse_ssa_name (parser, id, NULL_TREE,
version, ver_offset);
if (expr.value == error_mark_node)
return expr;
set_c_expr_source_range (&expr, tok_range);
/* For default definition SSA names. */
if (c_parser_next_token_is (parser, CPP_OPEN_PAREN)
@ -900,6 +902,13 @@ c_parser_gimple_postfix_expression (c_parser *parser)
c_parser_consume_token (parser);
if (! SSA_NAME_IS_DEFAULT_DEF (expr.value))
{
if (!SSA_NAME_VAR (expr.value))
{
error_at (loc, "anonymous SSA name cannot have"
" default definition");
expr.value = error_mark_node;
return expr;
}
set_ssa_default_def (cfun, SSA_NAME_VAR (expr.value),
expr.value);
SSA_NAME_DEF_STMT (expr.value) = gimple_build_nop ();