https://gcc.gnu.org/g:214b5d66c54613463a96aa2c7202bc32f628dad6
commit r16-1261-g214b5d66c54613463a96aa2c7202bc32f628dad6
Author: Tobias Burnus <tbur...@baylibre.com>
Date: Fri Jun 6 15:57:50 2025 +0200
builtins.def: Enable OpenMP/OpenACC builtins also with -fno-nonansi-builtins
The flags -std=c.. and -std=c++.. imply -fno-nonansi-builtins, which
disabled
the OpenMP/OpenACC intrinsics - but -fopenmp/-fopenacc builtin use should be
rather othogonal to the user's choice between -std=c... and -std=gnuc...
gcc/ChangeLog:
* builtins.def (DEF_GOACC_BUILTIN_COMPILER,
DEF_GOMP_BUILTIN_COMPILER):
Set NONANSI_P = false to enable those also with
-fno-nonansi-builtins.
Diff:
---
gcc/builtins.def | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/gcc/builtins.def b/gcc/builtins.def
index fdcad54a5d75..59a43a10058a 100644
--- a/gcc/builtins.def
+++ b/gcc/builtins.def
@@ -217,6 +217,8 @@ along with GCC; see the file COPYING3. If not see
DEF_BUILTIN (ENUM, "__builtin_" NAME, BUILT_IN_NORMAL, TYPE, TYPE, \
false, true, true, ATTRS, false, \
flag_openacc)
+/* Set NONANSI_P = false to enable the builtins also with
-fno-nonansi-builtins,
+ esp. as -std=c++../c.. imply that flag and -fopenacc should be othogonal.
*/
#undef DEF_GOACC_BUILTIN_COMPILER
#define DEF_GOACC_BUILTIN_COMPILER(ENUM, NAME, TYPE, ATTRS) \
DEF_BUILTIN (ENUM, "__builtin_" NAME, BUILT_IN_NORMAL, TYPE, TYPE, \
@@ -232,10 +234,12 @@ along with GCC; see the file COPYING3. If not see
(flag_openacc \
|| flag_openmp \
|| flag_tree_parallelize_loops > 1))
+/* Set NONANSI_P = false to enable the builtins also with
-fno-nonansi-builtins,
+ esp. as -std=c++../c.. imply that flag and -fopenmp should be othogonal. */
#undef DEF_GOMP_BUILTIN_COMPILER
#define DEF_GOMP_BUILTIN_COMPILER(ENUM, NAME, TYPE, ATTRS) \
DEF_BUILTIN (ENUM, "__builtin_" NAME, BUILT_IN_NORMAL, TYPE, TYPE, \
- flag_openmp, true, true, ATTRS, false, flag_openmp)
+ flag_openmp, true, false, ATTRS, false, flag_openmp)
/* Builtin used by the implementation of GNU TM. These
functions are mapped to the actual implementation of the STM library. */
