toolchain/gcc/7.3.0/m68k-coldfire-pr68467.patch

   1 diff -Nur gcc-7.2.0.orig/gcc/config/m68k/m68k.c gcc-7.2.0/gcc/config/m68k/m68k.c
   2 --- gcc-7.2.0.orig/gcc/config/m68k/m68k.c       2017-04-03 22:30:56.274463000 +0000
   3 +++ gcc-7.2.0/gcc/config/m68k/m68k.c    2018-01-27 02:16:53.779367849 +0000
   4 @@ -182,6 +182,8 @@
   5                               const_tree, bool);
   6  static bool m68k_cannot_force_const_mem (machine_mode mode, rtx x);
   7  static bool m68k_output_addr_const_extra (FILE *, rtx);
   8 +static machine_mode m68k_promote_function_mode (const_tree, machine_mode,
   9 +                                               int *, const_tree, int);
  10  static void m68k_init_sync_libfuncs (void) ATTRIBUTE_UNUSED;
  11  static enum flt_eval_method
  12  m68k_excess_precision (enum excess_precision_type);
  13 @@ -332,6 +334,9 @@
  14  #undef TARGET_ATOMIC_TEST_AND_SET_TRUEVAL
  15  #define TARGET_ATOMIC_TEST_AND_SET_TRUEVAL 128
  16
  17 +#undef TARGET_PROMOTE_FUNCTION_MODE
  18 +#define TARGET_PROMOTE_FUNCTION_MODE m68k_promote_function_mode
  19 +
  20  static const struct attribute_spec m68k_attribute_table[] =
  21  {
  22    /* { name, min_len, max_len, decl_req, type_req, fn_type_req, handler,
  23 @@ -6571,4 +6576,20 @@
  24    return FLT_EVAL_METHOD_UNPREDICTABLE;
  25  }
  26
  27 +/* Implement TARGET_PROMOTE_FUNCTION_MODE.  */
  28 +
  29 +static machine_mode
  30 +m68k_promote_function_mode (const_tree type, machine_mode mode,
  31 +                            int *punsignedp ATTRIBUTE_UNUSED,
  32 +                            const_tree fntype ATTRIBUTE_UNUSED,
  33 +                            int for_return)
  34 +{
  35 +  /* Promote libcall arguments narrower than int to match the normal C
  36 +     ABI (for which promotions are handled via
  37 +     TARGET_PROMOTE_PROTOTYPES).  */
  38 +  if (type == NULL_TREE && !for_return && (mode == QImode || mode == HImode))
  39 +    return SImode;
  40 +  return mode;
  41 +}
  42 +
  43  #include "gt-m68k.h"