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re PR other/33426 (Support of #pragma ivdep)

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2013-10-27  Tobias Burnus  <burnus@net-b.de>

gcc/c/
        PR other/33426
        * c-parser.c (c_parser_while_statement,
        * c_parser_while_statement,
        c_parser_pragma): Add GCC ivdep support to 'do' and 'while'.
        (c_parser_statement_after_labels): Update calls.

gcc/testsuite/
        PR other/33426
        * gcc.dg/vect/vect-ivdep-2.c: New.

From-SVN: r204102
This commit is contained in:
Tobias Burnus 2013-10-27 08:40:31 +01:00 committed by Tobias Burnus
parent f32311532c
commit d4af74d4e8
4 changed files with 72 additions and 10 deletions
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7
gcc/c/ChangeLog
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@ -1,3 +1,10 @@
2013-10-27 Tobias Burnus <burnus@net-b.de>
PR other/33426
* c-parser.c (c_parser_while_statement, c_parser_while_statement,
c_parser_pragma): Add GCC ivdep support to 'do' and 'while'.
(c_parser_statement_after_labels): Update calls.
2013-10-24 Tobias Burnus <burnus@net-b.de>
PR other/33426

35
gcc/c/c-parser.c
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@ -1157,8 +1157,8 @@ static void c_parser_statement (c_parser *);
static void c_parser_statement_after_labels (c_parser *);
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_while_statement (c_parser *, bool);
static void c_parser_do_statement (c_parser *, bool);
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 *);
@ -4579,10 +4579,10 @@ c_parser_statement_after_labels (c_parser *parser)
c_parser_switch_statement (parser);
break;
case RID_WHILE:
c_parser_while_statement (parser);
c_parser_while_statement (parser, false);
break;
case RID_DO:
c_parser_do_statement (parser);
c_parser_do_statement (parser, false);
break;
case RID_FOR:
c_parser_for_statement (parser, false);
@ -4912,7 +4912,7 @@ c_parser_switch_statement (c_parser *parser)
*/
static void
c_parser_while_statement (c_parser *parser)
c_parser_while_statement (c_parser *parser, bool ivdep)
{
tree block, cond, body, save_break, save_cont;
location_t loc;
@ -4927,6 +4927,11 @@ c_parser_while_statement (c_parser *parser)
"statement");
cond = error_mark_node;
}
if (ivdep && cond != error_mark_node)
cond = build2 (ANNOTATE_EXPR, TREE_TYPE (cond), cond,
build_int_cst (integer_type_node,
annot_expr_ivdep_kind));
save_break = c_break_label;
c_break_label = NULL_TREE;
save_cont = c_cont_label;
@ -4945,7 +4950,7 @@ c_parser_while_statement (c_parser *parser)
*/
static void
c_parser_do_statement (c_parser *parser)
c_parser_do_statement (c_parser *parser, bool ivdep)
{
tree block, cond, body, save_break, save_cont, new_break, new_cont;
location_t loc;
@ -4974,7 +4979,10 @@ c_parser_do_statement (c_parser *parser)
"do-while statement");
cond = error_mark_node;
}
if (ivdep && cond != error_mark_node)
cond = build2 (ANNOTATE_EXPR, TREE_TYPE (cond), cond,
build_int_cst (integer_type_node,
annot_expr_ivdep_kind));
if (!c_parser_require (parser, CPP_SEMICOLON, "expected %<;%>"))
c_parser_skip_to_end_of_block_or_statement (parser);
c_finish_loop (loc, cond, NULL, body, new_break, new_cont, false);
@ -9102,12 +9110,19 @@ c_parser_pragma (c_parser *parser, enum pragma_context context)
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))
if (!c_parser_next_token_is_keyword (parser, RID_FOR)
&& !c_parser_next_token_is_keyword (parser, RID_WHILE)
&& !c_parser_next_token_is_keyword (parser, RID_DO))
{
c_parser_error (parser, "for statement expected");
c_parser_error (parser, "for, while or do statement expected");
return false;
}
c_parser_for_statement (parser, true);
if (c_parser_next_token_is_keyword (parser, RID_FOR))
c_parser_for_statement (parser, true);
else if (c_parser_next_token_is_keyword (parser, RID_WHILE))
c_parser_while_statement (parser, true);
else
c_parser_do_statement (parser, true);
return false;
case PRAGMA_GCC_PCH_PREPROCESS:

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2013-10-27 Tobias Burnus <burnus@net-b.de>
PR other/33426
* gcc.dg/vect/vect-ivdep-2.c: New.
2013-10-26 Oleg Endo <olegendo@gcc.gnu.org>
PR target/52483

35
gcc/testsuite/gcc.dg/vect/vect-ivdep-2.c Normal file
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@ -0,0 +1,35 @@
/* { dg-do compile } */
/* { dg-require-effective-target vect_float } */
/* { dg-additional-options "-O3 -fopt-info-vec-optimized" } */
/* PR other/33426 */
/* Testing whether #pragma ivdep is working. */
void foo(int n, int *a, int *b, int *c) {
int i;
i = 0;
#pragma GCC ivdep
while(i < n)
{
a[i] = b[i] + c[i];
++i;
}
}
void bar(int n, int *a, int *b, int *c) {
int i;
i = 0;
#pragma GCC ivdep
do
{
a[i] = b[i] + c[i];
++i;
}
while(i < n);
}
/* { dg-message "loop vectorized" "" { target *-*-* } 0 } */
/* { dg-bogus " version" "" { target *-*-* } 0 } */
/* { dg-bogus " alias" "" { target *-*-* } 0 } */
/* { dg-final { cleanup-tree-dump "vect" } } */