diff options
Diffstat (limited to 'src/mesa/drivers')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_fs.cpp | 114 |
1 files changed, 34 insertions, 80 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp index 1c6ead57a7..983b29d779 100644 --- a/src/mesa/drivers/dri/i965/brw_fs.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs.cpp @@ -785,6 +785,30 @@ fs_visitor::try_emit_saturate(ir_expression *ir) return true; } +static uint32_t +brw_conditional_for_comparison(unsigned int op) +{ + switch (op) { + case ir_binop_less: + return BRW_CONDITIONAL_L; + case ir_binop_greater: + return BRW_CONDITIONAL_G; + case ir_binop_lequal: + return BRW_CONDITIONAL_LE; + case ir_binop_gequal: + return BRW_CONDITIONAL_GE; + case ir_binop_equal: + case ir_binop_all_equal: /* same as equal for scalars */ + return BRW_CONDITIONAL_Z; + case ir_binop_nequal: + case ir_binop_any_nequal: /* same as nequal for scalars */ + return BRW_CONDITIONAL_NZ; + default: + assert(!"not reached: bad operation for comparison"); + return BRW_CONDITIONAL_NZ; + } +} + void fs_visitor::visit(ir_expression *ir) { @@ -900,35 +924,15 @@ fs_visitor::visit(ir_expression *ir) break; case ir_binop_less: - inst = emit(fs_inst(BRW_OPCODE_CMP, this->result, op[0], op[1])); - inst->conditional_mod = BRW_CONDITIONAL_L; - emit(fs_inst(BRW_OPCODE_AND, this->result, this->result, fs_reg(0x1))); - break; case ir_binop_greater: - inst = emit(fs_inst(BRW_OPCODE_CMP, this->result, op[0], op[1])); - inst->conditional_mod = BRW_CONDITIONAL_G; - emit(fs_inst(BRW_OPCODE_AND, this->result, this->result, fs_reg(0x1))); - break; case ir_binop_lequal: - inst = emit(fs_inst(BRW_OPCODE_CMP, this->result, op[0], op[1])); - inst->conditional_mod = BRW_CONDITIONAL_LE; - emit(fs_inst(BRW_OPCODE_AND, this->result, this->result, fs_reg(0x1))); - break; case ir_binop_gequal: - inst = emit(fs_inst(BRW_OPCODE_CMP, this->result, op[0], op[1])); - inst->conditional_mod = BRW_CONDITIONAL_GE; - emit(fs_inst(BRW_OPCODE_AND, this->result, this->result, fs_reg(0x1))); - break; case ir_binop_equal: - case ir_binop_all_equal: /* same as nequal for scalars */ - inst = emit(fs_inst(BRW_OPCODE_CMP, this->result, op[0], op[1])); - inst->conditional_mod = BRW_CONDITIONAL_Z; - emit(fs_inst(BRW_OPCODE_AND, this->result, this->result, fs_reg(0x1))); - break; + case ir_binop_all_equal: case ir_binop_nequal: - case ir_binop_any_nequal: /* same as nequal for scalars */ + case ir_binop_any_nequal: inst = emit(fs_inst(BRW_OPCODE_CMP, this->result, op[0], op[1])); - inst->conditional_mod = BRW_CONDITIONAL_NZ; + inst->conditional_mod = brw_conditional_for_comparison(ir->operation); emit(fs_inst(BRW_OPCODE_AND, this->result, this->result, fs_reg(0x1))); break; @@ -1571,31 +1575,18 @@ fs_visitor::emit_bool_to_cond_code(ir_rvalue *ir) break; case ir_binop_greater: - inst = emit(fs_inst(BRW_OPCODE_CMP, reg_null_d, op[0], op[1])); - inst->conditional_mod = BRW_CONDITIONAL_G; - break; case ir_binop_gequal: - inst = emit(fs_inst(BRW_OPCODE_CMP, reg_null_d, op[0], op[1])); - inst->conditional_mod = BRW_CONDITIONAL_GE; - break; case ir_binop_less: - inst = emit(fs_inst(BRW_OPCODE_CMP, reg_null_d, op[0], op[1])); - inst->conditional_mod = BRW_CONDITIONAL_L; - break; case ir_binop_lequal: - inst = emit(fs_inst(BRW_OPCODE_CMP, reg_null_d, op[0], op[1])); - inst->conditional_mod = BRW_CONDITIONAL_LE; - break; case ir_binop_equal: case ir_binop_all_equal: - inst = emit(fs_inst(BRW_OPCODE_CMP, reg_null_d, op[0], op[1])); - inst->conditional_mod = BRW_CONDITIONAL_Z; - break; case ir_binop_nequal: case ir_binop_any_nequal: inst = emit(fs_inst(BRW_OPCODE_CMP, reg_null_d, op[0], op[1])); - inst->conditional_mod = BRW_CONDITIONAL_NZ; + inst->conditional_mod = + brw_conditional_for_comparison(expr->operation); break; + default: assert(!"not reached"); this->fail = true; @@ -1674,30 +1665,16 @@ fs_visitor::emit_if_gen6(ir_if *ir) return; case ir_binop_greater: - inst = emit(fs_inst(BRW_OPCODE_IF, reg_null_d, op[0], op[1])); - inst->conditional_mod = BRW_CONDITIONAL_G; - return; case ir_binop_gequal: - inst = emit(fs_inst(BRW_OPCODE_IF, reg_null_d, op[0], op[1])); - inst->conditional_mod = BRW_CONDITIONAL_GE; - return; case ir_binop_less: - inst = emit(fs_inst(BRW_OPCODE_IF, reg_null_d, op[0], op[1])); - inst->conditional_mod = BRW_CONDITIONAL_L; - return; case ir_binop_lequal: - inst = emit(fs_inst(BRW_OPCODE_IF, reg_null_d, op[0], op[1])); - inst->conditional_mod = BRW_CONDITIONAL_LE; - return; case ir_binop_equal: case ir_binop_all_equal: - inst = emit(fs_inst(BRW_OPCODE_IF, reg_null_d, op[0], op[1])); - inst->conditional_mod = BRW_CONDITIONAL_Z; - return; case ir_binop_nequal: case ir_binop_any_nequal: inst = emit(fs_inst(BRW_OPCODE_IF, reg_null_d, op[0], op[1])); - inst->conditional_mod = BRW_CONDITIONAL_NZ; + inst->conditional_mod = + brw_conditional_for_comparison(expr->operation); return; default: assert(!"not reached"); @@ -1779,32 +1756,9 @@ fs_visitor::visit(ir_loop *ir) this->base_ir = ir->to; ir->to->accept(this); - fs_inst *inst = emit(fs_inst(BRW_OPCODE_CMP, reg_null_d, + fs_inst *inst = emit(fs_inst(BRW_OPCODE_CMP, reg_null_cmp, counter, this->result)); - switch (ir->cmp) { - case ir_binop_equal: - inst->conditional_mod = BRW_CONDITIONAL_Z; - break; - case ir_binop_nequal: - inst->conditional_mod = BRW_CONDITIONAL_NZ; - break; - case ir_binop_gequal: - inst->conditional_mod = BRW_CONDITIONAL_GE; - break; - case ir_binop_lequal: - inst->conditional_mod = BRW_CONDITIONAL_LE; - break; - case ir_binop_greater: - inst->conditional_mod = BRW_CONDITIONAL_G; - break; - case ir_binop_less: - inst->conditional_mod = BRW_CONDITIONAL_L; - break; - default: - assert(!"not reached: unknown loop condition"); - this->fail = true; - break; - } + inst->conditional_mod = brw_conditional_for_comparison(ir->cmp); inst = emit(fs_inst(BRW_OPCODE_BREAK)); inst->predicated = true; |