diff options
Diffstat (limited to 'gcc/c/c-parser.c')
| -rw-r--r-- | gcc/c/c-parser.c | 33 |
1 files changed, 28 insertions, 5 deletions
diff --git a/gcc/c/c-parser.c b/gcc/c/c-parser.c index 4d6c9303918..4f250783945 100644 --- a/gcc/c/c-parser.c +++ b/gcc/c/c-parser.c @@ -1159,7 +1159,7 @@ static void c_parser_if_statement (c_parser *); static void c_parser_switch_statement (c_parser *); static void c_parser_while_statement (c_parser *); static void c_parser_do_statement (c_parser *); -static void c_parser_for_statement (c_parser *); +static void c_parser_for_statement (c_parser *, bool); static tree c_parser_asm_statement (c_parser *); static tree c_parser_asm_operands (c_parser *); static tree c_parser_asm_goto_operands (c_parser *); @@ -4585,7 +4585,7 @@ c_parser_statement_after_labels (c_parser *parser) c_parser_do_statement (parser); break; case RID_FOR: - c_parser_for_statement (parser); + c_parser_for_statement (parser, false); break; case RID_GOTO: c_parser_consume_token (parser); @@ -5038,7 +5038,7 @@ c_parser_do_statement (c_parser *parser) */ static void -c_parser_for_statement (c_parser *parser) +c_parser_for_statement (c_parser *parser, bool ivdep) { tree block, cond, incr, save_break, save_cont, body; /* The following are only used when parsing an ObjC foreach statement. */ @@ -5144,8 +5144,17 @@ c_parser_for_statement (c_parser *parser) { if (c_parser_next_token_is (parser, CPP_SEMICOLON)) { - c_parser_consume_token (parser); - cond = NULL_TREE; + if (ivdep) + { + c_parser_error (parser, "missing loop condition in loop with " + "%<GCC ivdep%> pragma"); + cond = error_mark_node; + } + else + { + c_parser_consume_token (parser); + cond = NULL_TREE; + } } else { @@ -5159,6 +5168,10 @@ c_parser_for_statement (c_parser *parser) c_parser_skip_until_found (parser, CPP_SEMICOLON, "expected %<;%>"); } + if (ivdep && cond != error_mark_node) + cond = build2 (ANNOTATE_EXPR, TREE_TYPE (cond), cond, + build_int_cst (integer_type_node, + annot_expr_ivdep_kind)); } /* Parse the increment expression (the third expression in a for-statement). In the case of a foreach-statement, this is @@ -9086,6 +9099,16 @@ c_parser_pragma (c_parser *parser, enum pragma_context context) case PRAGMA_OMP_DECLARE_REDUCTION: c_parser_omp_declare (parser, context); return false; + case PRAGMA_IVDEP: + c_parser_consume_pragma (parser); + c_parser_skip_to_pragma_eol (parser); + if (!c_parser_next_token_is_keyword (parser, RID_FOR)) + { + c_parser_error (parser, "for statement expected"); + return false; + } + c_parser_for_statement (parser, true); + return false; case PRAGMA_GCC_PCH_PREPROCESS: c_parser_error (parser, "%<#pragma GCC pch_preprocess%> must be first"); |