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| author | Sverker Eriksson <[email protected]> | 2015-03-30 21:45:42 +0200 |
|---|---|---|
| committer | Sverker Eriksson <[email protected]> | 2015-03-30 21:45:42 +0200 |
| commit | 450e5b610ac2de4817606c2966d9fb5a9850887a (patch) | |
| tree | c4b53ab33c91a0da50f1f44248a6e15132a128dd /erts/emulator/beam/erl_utils.h | |
| parent | e4da94bee94bdd7e0dbb2e5021ab4cc5f89f8256 (diff) | |
| download | otp-450e5b610ac2de4817606c2966d9fb5a9850887a.tar.gz otp-450e5b610ac2de4817606c2966d9fb5a9850887a.tar.bz2 otp-450e5b610ac2de4817606c2966d9fb5a9850887a.zip | |
erts: Optimize == and /= for unequal big maps
Bail out as soon as we find a diff between maps
if we are not interested in term order.
Diffstat (limited to 'erts/emulator/beam/erl_utils.h')
| -rw-r--r-- | erts/emulator/beam/erl_utils.h | 28 |
1 files changed, 15 insertions, 13 deletions
diff --git a/erts/emulator/beam/erl_utils.h b/erts/emulator/beam/erl_utils.h index 7cb8972e29..6a28105cb9 100644 --- a/erts/emulator/beam/erl_utils.h +++ b/erts/emulator/beam/erl_utils.h @@ -167,24 +167,26 @@ int eq(Eterm, Eterm); #define EQ(x,y) (((x) == (y)) || (is_not_both_immed((x),(y)) && eq((x),(y)))) #if HALFWORD_HEAP -Sint erts_cmp_rel_opt(Eterm, Eterm*, Eterm, Eterm*, int); -#define cmp_rel(A,A_BASE,B,B_BASE) erts_cmp_rel_opt(A,A_BASE,B,B_BASE,0) -#define cmp_rel_term(A,A_BASE,B,B_BASE) erts_cmp_rel_opt(A,A_BASE,B,B_BASE,1) -#define CMP(A,B) erts_cmp_rel_opt(A,NULL,B,NULL,0) -#define CMP_TERM(A,B) erts_cmp_rel_opt(A,NULL,B,NULL,1) +Sint erts_cmp_rel_opt(Eterm, Eterm*, Eterm, Eterm*, int, int); +#define cmp_rel(A,A_BASE,B,B_BASE) erts_cmp_rel_opt(A,A_BASE,B,B_BASE,0,0) +#define cmp_rel_term(A,A_BASE,B,B_BASE) erts_cmp_rel_opt(A,A_BASE,B,B_BASE,1,0) +#define CMP(A,B) erts_cmp_rel_opt(A,NULL,B,NULL,0,0) +#define CMP_TERM(A,B) erts_cmp_rel_opt(A,NULL,B,NULL,1,0) +#define CMP_EQ_ONLY(A,B) erts_cmp_rel_opt(A,NULL,B,NULL,0,1) #else -Sint cmp(Eterm, Eterm); -Sint erts_cmp(Eterm, Eterm, int); -#define cmp_rel(A,A_BASE,B,B_BASE) erts_cmp(A,B,0) -#define cmp_rel_term(A,A_BASE,B,B_BASE) erts_cmp(A,B,1) -#define CMP(A,B) erts_cmp(A,B,0) -#define CMP_TERM(A,B) erts_cmp(A,B,1) +Sint erts_cmp(Eterm, Eterm, int, int); +Sint cmp(Eterm a, Eterm b); +#define cmp_rel(A,A_BASE,B,B_BASE) erts_cmp(A,B,0,0) +#define cmp_rel_term(A,A_BASE,B,B_BASE) erts_cmp(A,B,1,0) +#define CMP(A,B) erts_cmp(A,B,0,0) +#define CMP_TERM(A,B) erts_cmp(A,B,1,0) +#define CMP_EQ_ONLY(A,B) erts_cmp(A,B,0,1) #endif #define cmp_lt(a,b) (CMP((a),(b)) < 0) #define cmp_le(a,b) (CMP((a),(b)) <= 0) -#define cmp_eq(a,b) (CMP((a),(b)) == 0) -#define cmp_ne(a,b) (CMP((a),(b)) != 0) +#define cmp_eq(a,b) (CMP_EQ_ONLY((a),(b)) == 0) +#define cmp_ne(a,b) (CMP_EQ_ONLY((a),(b)) != 0) #define cmp_ge(a,b) (CMP((a),(b)) >= 0) #define cmp_gt(a,b) (CMP((a),(b)) > 0) |