| Backport from upstream, see |
| https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68467 |
| |
| Signed-off-by: Waldemar Brodkorb <wbx@openadk.org> |
| |
| diff -Nur gcc-4.9.4.orig/gcc/config/m68k/m68k.c gcc-4.9.4/gcc/config/m68k/m68k.c |
| --- gcc-4.9.4.orig/gcc/config/m68k/m68k.c 2014-02-27 12:10:55.000000000 +0100 |
| +++ gcc-4.9.4/gcc/config/m68k/m68k.c 2018-02-17 21:28:53.430538916 +0100 |
| @@ -166,6 +166,8 @@ |
| const_tree, bool); |
| static bool m68k_cannot_force_const_mem (enum machine_mode mode, rtx x); |
| static bool m68k_output_addr_const_extra (FILE *, rtx); |
| +static machine_mode m68k_promote_function_mode (const_tree, machine_mode, |
| + int *, const_tree, int); |
| static void m68k_init_sync_libfuncs (void) ATTRIBUTE_UNUSED; |
| |
| /* Initialize the GCC target structure. */ |
| @@ -308,6 +310,9 @@ |
| #undef TARGET_ATOMIC_TEST_AND_SET_TRUEVAL |
| #define TARGET_ATOMIC_TEST_AND_SET_TRUEVAL 128 |
| |
| +#undef TARGET_PROMOTE_FUNCTION_MODE |
| +#define TARGET_PROMOTE_FUNCTION_MODE m68k_promote_function_mode |
| + |
| static const struct attribute_spec m68k_attribute_table[] = |
| { |
| /* { name, min_len, max_len, decl_req, type_req, fn_type_req, handler, |
| @@ -6527,4 +6532,20 @@ |
| == m68k_fk_interrupt_handler)); |
| } |
| |
| +/* Implement TARGET_PROMOTE_FUNCTION_MODE. */ |
| + |
| +static machine_mode |
| +m68k_promote_function_mode (const_tree type, machine_mode mode, |
| + int *punsignedp ATTRIBUTE_UNUSED, |
| + const_tree fntype ATTRIBUTE_UNUSED, |
| + int for_return) |
| +{ |
| + /* Promote libcall arguments narrower than int to match the normal C |
| + ABI (for which promotions are handled via |
| + TARGET_PROMOTE_PROTOTYPES). */ |
| + if (type == NULL_TREE && !for_return && (mode == QImode || mode == HImode)) |
| + return SImode; |
| + return mode; |
| +} |
| + |
| #include "gt-m68k.h" |
