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awk: shuffle globals for smaller offsets

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function                                             old     new   delta
awk_main                                             832     829      -3
evaluate                                            3229    3223      -6
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(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-9)               Total: -9 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2021-07-02 14:53:52 +02:00
parent 966cafcc77
commit ef5463cf16
1 changed files with 13 additions and 12 deletions
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25
editors/awk.c
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@ -536,6 +536,11 @@ struct globals {
smallint nextfile;
smallint is_f0_split;
smallint t_rollback;
/* former statics from various functions */
smallint next_token__concat_inserted;
uint32_t next_token__save_tclass;
uint32_t next_token__save_info;
};
struct globals2 {
uint32_t t_info; /* often used */
@ -548,15 +553,11 @@ struct globals2 {
/* former statics from various functions */
char *split_f0__fstrings;
uint32_t next_token__save_tclass;
uint32_t next_token__save_info;
smallint next_token__concat_inserted;
smallint next_input_file__files_happen;
rstream next_input_file__rsm;
smallint next_input_file__files_happen;
var *evaluate__fnargs;
unsigned evaluate__seed;
var *evaluate__fnargs;
regex_t evaluate__sreg;
var ptest__tmpvar;
@ -575,10 +576,10 @@ struct globals2 {
#define G1 (ptr_to_globals[-1])
#define G (*(struct globals2 *)ptr_to_globals)
/* For debug. nm --size-sort awk.o | grep -vi ' [tr] ' */
/*char G1size[sizeof(G1)]; - 0x74 */
/*char Gsize[sizeof(G)]; - 0x1c4 */
//char G1size[sizeof(G1)]; // 0x70
//char Gsize[sizeof(G)]; // 0x2f8
/* Trying to keep most of members accessible with short offsets: */
/*char Gofs_seed[offsetof(struct globals2, evaluate__seed)]; - 0x90 */
//char Gofs_seed[offsetof(struct globals2, evaluate__seed)]; // 0x7c
#define t_double (G1.t_double )
#define beginseq (G1.beginseq )
#define mainseq (G1.mainseq )
@ -1056,9 +1057,9 @@ static int istrue(var *v)
*/
static uint32_t next_token(uint32_t expected)
{
#define concat_inserted (G.next_token__concat_inserted)
#define save_tclass (G.next_token__save_tclass)
#define save_info (G.next_token__save_info)
#define concat_inserted (G1.next_token__concat_inserted)
#define save_tclass (G1.next_token__save_tclass)
#define save_info (G1.next_token__save_info)
char *p;
const char *tl;