diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/compiler/nir/nir_lower_idiv.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/src/compiler/nir/nir_lower_idiv.c b/src/compiler/nir/nir_lower_idiv.c index 4e7e2408ae8..96e9412c80e 100644 --- a/src/compiler/nir/nir_lower_idiv.c +++ b/src/compiler/nir/nir_lower_idiv.c @@ -45,10 +45,14 @@ convert_instr(nir_builder *bld, nir_alu_instr *alu) if ((op != nir_op_idiv) && (op != nir_op_udiv) && - (op != nir_op_umod)) + (op != nir_op_imod) && + (op != nir_op_umod) && + (op != nir_op_irem)) return false; - is_signed = (op == nir_op_idiv); + is_signed = (op == nir_op_idiv || + op == nir_op_imod || + op == nir_op_irem); bld->cursor = nir_before_instr(&alu->instr); @@ -104,6 +108,16 @@ convert_instr(nir_builder *bld, nir_alu_instr *alu) r = nir_ilt(bld, r, nir_imm_int(bld, 0)); b = nir_ineg(bld, q); q = nir_bcsel(bld, r, b, q); + + if (op == nir_op_imod || op == nir_op_irem) { + q = nir_imul(bld, q, denom); + q = nir_isub(bld, numer, q); + if (op == nir_op_imod) { + q = nir_bcsel(bld, nir_ieq(bld, q, nir_imm_int(bld, 0)), + nir_imm_int(bld, 0), + nir_bcsel(bld, r, nir_iadd(bld, q, denom), q)); + } + } } if (op == nir_op_umod) { |