diff options
Diffstat (limited to 'gcc/genmodes.c')
| -rw-r--r-- | gcc/genmodes.c | 39 |
1 files changed, 37 insertions, 2 deletions
diff --git a/gcc/genmodes.c b/gcc/genmodes.c index 6e282f36dd9..42a8d03c83e 100644 --- a/gcc/genmodes.c +++ b/gcc/genmodes.c @@ -64,6 +64,7 @@ struct mode_data struct mode_data *component; /* mode of components */ struct mode_data *wider; /* next wider mode */ + struct mode_data *wider_2x; /* 2x wider mode */ struct mode_data *contained; /* Pointer to list of modes that have this mode as a component. */ @@ -80,7 +81,7 @@ static struct mode_data *void_mode; static const struct mode_data blank_mode = { 0, "<unknown>", MAX_MODE_CLASS, -1U, -1U, -1U, -1U, - 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, "<unknown>", 0 }; @@ -619,7 +620,7 @@ make_vector_mode (enum mode_class bclass, ncomponents, base) >= sizeof namebuf) { error ("%s:%d: mode name \"%s\" is too long", - base, file, line); + file, line, base); return; } @@ -717,6 +718,7 @@ calc_wider_mode (void) for (prev = 0, m = modes[c]; m; m = next) { m->wider = void_mode; + m->wider_2x = void_mode; /* this is nreverse */ next = m->next; @@ -951,6 +953,39 @@ emit_mode_wider (void) m->name); print_closer (); + print_decl ("unsigned char", "mode_2xwider", "NUM_MACHINE_MODES"); + + for_all_modes (c, m) + { + struct mode_data * m2; + + for (m2 = m; + m2 && m2 != void_mode; + m2 = m2->wider) + { + if (m2->bytesize < 2 * m->bytesize) + continue; + if (m->precision != (unsigned int) -1) + { + if (m2->precision != 2 * m->precision) + continue; + } + else + { + if (m2->precision != (unsigned int) -1) + continue; + } + + break; + } + if (m2 == void_mode) + m2 = 0; + tagged_printf ("%smode", + m2 ? m2->name : void_mode->name, + m->name); + } + + print_closer (); } static void |