diff options
| author | Kenneth Zadeck <zadeck@naturalbridge.com> | 2013-03-28 14:46:31 +0000 |
|---|---|---|
| committer | Kenneth Zadeck <zadeck@gcc.gnu.org> | 2013-03-28 14:46:31 +0000 |
| commit | 8697be17fe6fed0abb0461cbe5f311377006e954 (patch) | |
| tree | 2a5527a5207957c4911401b0159d8b32ff08f528 /gcc/genmodes.c | |
| parent | b4c73eedf336e26c042bd873e4b49e394a81b4b0 (diff) | |
| download | gcc-8697be17fe6fed0abb0461cbe5f311377006e954.zip gcc-8697be17fe6fed0abb0461cbe5f311377006e954.tar.gz gcc-8697be17fe6fed0abb0461cbe5f311377006e954.tar.bz2 | |
genmodes.c (emit_max_int): New function.
2013-03-28 Kenneth Zadeck <zadeck@naturalbridge.com>
* genmodes.c (emit_max_int): New function.
(emit_insn_modes_h): Added call to emit_max_function.
* doc/rtl.texi (MAX_BITSIZE_MODE_ANY_INT, MAX_BITSIZE_MODE_ANY_MODE): Added doc.
* machmode.def: Fixed comment.
From-SVN: r197200
Diffstat (limited to 'gcc/genmodes.c')
| -rw-r--r-- | gcc/genmodes.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/gcc/genmodes.c b/gcc/genmodes.c index 9907d69..dc38483 100644 --- a/gcc/genmodes.c +++ b/gcc/genmodes.c @@ -848,6 +848,36 @@ calc_wider_mode (void) #define print_closer() puts ("};") +/* Compute the max bitsize of some of the classes of integers. It may + be that there are needs for the other integer classes, and this + code is easy to extend. */ +static void +emit_max_int (void) +{ + unsigned int max, mmax; + struct mode_data *i; + int j; + + puts (""); + for (max = 1, i = modes[MODE_INT]; i; i = i->next) + if (max < i->bytesize) + max = i->bytesize; + mmax = max; + for (max = 1, i = modes[MODE_PARTIAL_INT]; i; i = i->next) + if (max < i->bytesize) + max = i->bytesize; + if (max > mmax) + mmax = max; + printf ("#define MAX_BITSIZE_MODE_ANY_INT %d*BITS_PER_UNIT\n", mmax); + + mmax = 0; + for (j = 0; j < MAX_MODE_CLASS; j++) + for (i = modes[j]; i; i = i->next) + if (mmax < i->bytesize) + mmax = i->bytesize; + printf ("#define MAX_BITSIZE_MODE_ANY_MODE %d*BITS_PER_UNIT\n", mmax); +} + static void emit_insn_modes_h (void) { @@ -912,6 +942,7 @@ enum machine_mode\n{"); #endif printf ("#define CONST_MODE_IBIT%s\n", adj_ibit ? "" : " const"); printf ("#define CONST_MODE_FBIT%s\n", adj_fbit ? "" : " const"); + emit_max_int (); puts ("\ \n\ #endif /* insn-modes.h */"); |