diff options
Diffstat (limited to 'erts/emulator/beam/utils.c')
| -rw-r--r-- | erts/emulator/beam/utils.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/erts/emulator/beam/utils.c b/erts/emulator/beam/utils.c index 8958d334ae..bc4a05d385 100644 --- a/erts/emulator/beam/utils.c +++ b/erts/emulator/beam/utils.c @@ -2425,10 +2425,14 @@ static int cmp_atoms(Eterm a, Eterm b) bb->name+3, bb->len-3); } +/* cmp(Eterm a, Eterm b, int exact) + * exact = 1 -> term-based compare + * exact = 0 -> arith-based compare + */ #if HALFWORD_HEAP -Sint cmp_rel(Eterm a, Eterm* a_base, Eterm b, Eterm* b_base) +Sint cmp_rel_opt(Eterm a, Eterm* a_base, Eterm b, Eterm* b_base, int exact) #else -Sint cmp(Eterm a, Eterm b) +Sint cmp(Eterm a, Eterm b, int exact) #endif { DECLARE_WSTACK(stack); @@ -2852,6 +2856,7 @@ tailrecur_ne: j = big_sign(aw) ? -1 : 1; break; case SMALL_FLOAT: + if (exact) goto exact_fall_through; GET_DOUBLE(bw, f2); if (f2.fd < MAX_LOSSLESS_FLOAT && f2.fd > MIN_LOSSLESS_FLOAT) { /* Float is within the no loss limit */ @@ -2877,12 +2882,14 @@ tailrecur_ne: #endif /* ERTS_SIZEOF_ETERM == 8 */ break; case FLOAT_BIG: + if (exact) goto exact_fall_through; { Wterm tmp = aw; aw = bw; bw = tmp; }/* fall through */ case BIG_FLOAT: + if (exact) goto exact_fall_through; GET_DOUBLE(bw, f2); if ((f2.fd < (double) (MAX_SMALL + 1)) && (f2.fd > (double) (MIN_SMALL - 1))) { @@ -2912,6 +2919,7 @@ tailrecur_ne: } break; case FLOAT_SMALL: + if (exact) goto exact_fall_through; GET_DOUBLE(aw, f1); if (f1.fd < MAX_LOSSLESS_FLOAT && f1.fd > MIN_LOSSLESS_FLOAT) { /* Float is within the no loss limit */ @@ -2936,6 +2944,7 @@ tailrecur_ne: } #endif /* ERTS_SIZEOF_ETERM == 8 */ break; +exact_fall_through: default: j = b_tag - a_tag; } |