44 convert_instr(nir_builder *bld, nir_op op,  in convert_instr()  argument
55       af = nir_i2f32(bld, numer);  in convert_instr()
56       bf = nir_i2f32(bld, denom);  in convert_instr()
57       af = nir_fabs(bld, af);  in convert_instr()
58       bf = nir_fabs(bld, bf);  in convert_instr()
59       a  = nir_iabs(bld, numer);  in convert_instr()
60       b  = nir_iabs(bld, denom);  in convert_instr()
62       af = nir_u2f32(bld, numer);  in convert_instr()
63       bf = nir_u2f32(bld, denom);  in convert_instr()
69    bf = nir_frcp(bld, bf);  in convert_instr()
70    bf = nir_isub(bld, bf, nir_imm_int(bld, 2));  /* yes, really */  in convert_instr()
71    q  = nir_fmul(bld, af, bf);  in convert_instr()
74       q = nir_f2i32(bld, q);  in convert_instr()
76       q = nir_f2u32(bld, q);  in convert_instr()
80    r = nir_imul(bld, q, b);  in convert_instr()
81    r = nir_isub(bld, a, r);  in convert_instr()
82    r = nir_u2f32(bld, r);  in convert_instr()
83    r = nir_fmul(bld, r, bf);  in convert_instr()
84    r = nir_f2u32(bld, r);  in convert_instr()
87    q = nir_iadd(bld, q, r);  in convert_instr()
90    r = nir_imul(bld, q, b);  in convert_instr()
91    r = nir_isub(bld, a, r);  in convert_instr()
92    rt = nir_uge(bld, r, b);  in convert_instr()
95       q = nir_bcsel(bld, rt, nir_isub(bld, r, b), r);  in convert_instr()
97       r = nir_b2i32(bld, rt);  in convert_instr()
99       q = nir_iadd(bld, q, r);  in convert_instr()
102          r = nir_ixor(bld, numer, denom);  in convert_instr()
103          r = nir_ilt(bld, r, nir_imm_int(bld, 0));  in convert_instr()
104          b = nir_ineg(bld, q);  in convert_instr()
105          q = nir_bcsel(bld, r, b, q);  in convert_instr()
108             q = nir_imul(bld, q, denom);  in convert_instr()
109             q = nir_isub(bld, numer, q);  in convert_instr()
111                q = nir_bcsel(bld, nir_ieq_imm(bld, q, 0),  in convert_instr()
112                              nir_imm_int(bld, 0),  in convert_instr()
113                              nir_bcsel(bld, r, nir_iadd(bld, q, denom), q));  in convert_instr()
124 emit_udiv(nir_builder *bld, nir_ssa_def *numer, nir_ssa_def *denom, bool modulo)  in emit_udiv()  argument
126    nir_ssa_def *rcp = nir_frcp(bld, nir_u2f32(bld, denom));  in emit_udiv()
127    rcp = nir_f2u32(bld, nir_fmul_imm(bld, rcp, 4294966784.0));  in emit_udiv()
130       nir_imul(bld, rcp, nir_ineg(bld, denom));  in emit_udiv()
131    rcp = nir_iadd(bld, rcp, nir_umul_high(bld, rcp, neg_rcp_times_denom));  in emit_udiv()
135    nir_ssa_def *quotient = nir_umul_high(bld, numer, rcp);  in emit_udiv()
136    nir_ssa_def *num_s_remainder = nir_imul(bld, quotient, denom);  in emit_udiv()
137    nir_ssa_def *remainder = nir_isub(bld, numer, num_s_remainder);  in emit_udiv()
140    nir_ssa_def *remainder_ge_den = nir_uge(bld, remainder, denom);  in emit_udiv()
142       quotient = nir_bcsel(bld, remainder_ge_den,  in emit_udiv()
143                            nir_iadd_imm(bld, quotient, 1), quotient);  in emit_udiv()
145    remainder = nir_bcsel(bld, remainder_ge_den,  in emit_udiv()
146                          nir_isub(bld, remainder, denom), remainder);  in emit_udiv()
149    remainder_ge_den = nir_uge(bld, remainder, denom);  in emit_udiv()
151       return nir_bcsel(bld, remainder_ge_den, nir_isub(bld, remainder, denom),  in emit_udiv()
154       return nir_bcsel(bld, remainder_ge_den, nir_iadd_imm(bld, quotient, 1),  in emit_udiv()
161 emit_idiv(nir_builder *bld, nir_ssa_def *numer, nir_ssa_def *denom, nir_op op)  in emit_idiv()  argument
163    nir_ssa_def *lh_sign = nir_ilt(bld, numer, nir_imm_int(bld, 0));  in emit_idiv()
164    nir_ssa_def *rh_sign = nir_ilt(bld, denom, nir_imm_int(bld, 0));  in emit_idiv()
165    lh_sign = nir_bcsel(bld, lh_sign, nir_imm_int(bld, -1), nir_imm_int(bld, 0));  in emit_idiv()
166    rh_sign = nir_bcsel(bld, rh_sign, nir_imm_int(bld, -1), nir_imm_int(bld, 0));  in emit_idiv()
168    nir_ssa_def *lhs = nir_iadd(bld, numer, lh_sign);  in emit_idiv()
169    nir_ssa_def *rhs = nir_iadd(bld, denom, rh_sign);  in emit_idiv()
170    lhs = nir_ixor(bld, lhs, lh_sign);  in emit_idiv()
171    rhs = nir_ixor(bld, rhs, rh_sign);  in emit_idiv()
174       nir_ssa_def *d_sign = nir_ixor(bld, lh_sign, rh_sign);  in emit_idiv()
175       nir_ssa_def *res = emit_udiv(bld, lhs, rhs, false);  in emit_idiv()
176       res = nir_ixor(bld, res, d_sign);  in emit_idiv()
177       return nir_isub(bld, res, d_sign);  in emit_idiv()
179       nir_ssa_def *res = emit_udiv(bld, lhs, rhs, true);  in emit_idiv()
180       res = nir_ixor(bld, res, lh_sign);  in emit_idiv()
181       res = nir_isub(bld, res, lh_sign);  in emit_idiv()
183          nir_ssa_def *cond = nir_ieq_imm(bld, res, 0);  in emit_idiv()
184          cond = nir_ior(bld, nir_ieq(bld, lh_sign, rh_sign), cond);  in emit_idiv()
185          res = nir_bcsel(bld, cond, res, nir_iadd(bld, res, denom));  in emit_idiv()
192 convert_instr_precise(nir_builder *bld, nir_op op,  in convert_instr_precise()  argument
196       return emit_udiv(bld, numer, denom, op == nir_op_umod);  in convert_instr_precise()
198       return emit_idiv(bld, numer, denom, op);  in convert_instr_precise()