diff options
Diffstat (limited to 'target-ppc/op_helper.c')
| -rw-r--r-- | target-ppc/op_helper.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/target-ppc/op_helper.c b/target-ppc/op_helper.c index f59cd15cf6..d40caf0e8e 100644 --- a/target-ppc/op_helper.c +++ b/target-ppc/op_helper.c @@ -2220,6 +2220,74 @@ VCMP(gtsw, >, s32) #undef VCMP_DO #undef VCMP +#define VCMPFP_DO(suffix, compare, order, record) \ + void helper_vcmp##suffix (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ + { \ + uint32_t ones = (uint32_t)-1; \ + uint32_t all = ones; \ + uint32_t none = 0; \ + int i; \ + for (i = 0; i < ARRAY_SIZE(r->f); i++) { \ + uint32_t result; \ + int rel = float32_compare_quiet(a->f[i], b->f[i], &env->vec_status); \ + if (rel == float_relation_unordered) { \ + result = 0; \ + } else if (rel compare order) { \ + result = ones; \ + } else { \ + result = 0; \ + } \ + r->u32[i] = result; \ + all &= result; \ + none |= result; \ + } \ + if (record) { \ + env->crf[6] = ((all != 0) << 3) | ((none == 0) << 1); \ + } \ + } +#define VCMPFP(suffix, compare, order) \ + VCMPFP_DO(suffix, compare, order, 0) \ + VCMPFP_DO(suffix##_dot, compare, order, 1) +VCMPFP(eqfp, ==, float_relation_equal) +VCMPFP(gefp, !=, float_relation_less) +VCMPFP(gtfp, ==, float_relation_greater) +#undef VCMPFP_DO +#undef VCMPFP + +static always_inline void vcmpbfp_internal (ppc_avr_t *r, ppc_avr_t *a, + ppc_avr_t *b, int record) +{ + int i; + int all_in = 0; + for (i = 0; i < ARRAY_SIZE(r->f); i++) { + int le_rel = float32_compare_quiet(a->f[i], b->f[i], &env->vec_status); + if (le_rel == float_relation_unordered) { + r->u32[i] = 0xc0000000; + /* ALL_IN does not need to be updated here. */ + } else { + float32 bneg = float32_chs(b->f[i]); + int ge_rel = float32_compare_quiet(a->f[i], bneg, &env->vec_status); + int le = le_rel != float_relation_greater; + int ge = ge_rel != float_relation_less; + r->u32[i] = ((!le) << 31) | ((!ge) << 30); + all_in |= (!le | !ge); + } + } + if (record) { + env->crf[6] = (all_in == 0) << 1; + } +} + +void helper_vcmpbfp (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) +{ + vcmpbfp_internal(r, a, b, 0); +} + +void helper_vcmpbfp_dot (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) +{ + vcmpbfp_internal(r, a, b, 1); +} + void helper_vmaddfp (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c) { int i; |