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Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_fs.cpp')
-rw-r--r--src/mesa/drivers/dri/i965/brw_fs.cpp26
1 files changed, 18 insertions, 8 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp
index 41081c3b63..c92bb54960 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -969,10 +969,7 @@ fs_visitor::visit(ir_assignment *ir)
assert(r.file != BAD_FILE);
if (ir->condition) {
- /* Get the condition bool into the predicate. */
- ir->condition->accept(this);
- inst = emit(fs_inst(BRW_OPCODE_CMP, reg_null, this->result, fs_reg(0)));
- inst->conditional_mod = BRW_CONDITIONAL_NZ;
+ emit_bool_to_cond_code(ir->condition);
}
if (ir->lhs->type->is_scalar() ||
@@ -1343,6 +1340,22 @@ fs_visitor::visit(ir_constant *ir)
}
void
+fs_visitor::emit_bool_to_cond_code(ir_rvalue *ir)
+{
+
+ ir->accept(this);
+
+ if (intel->gen >= 6) {
+ fs_inst *inst = emit(fs_inst(BRW_OPCODE_AND, reg_null,
+ this->result, fs_reg(1)));
+ inst->conditional_mod = BRW_CONDITIONAL_NZ;
+ } else {
+ fs_inst *inst = emit(fs_inst(BRW_OPCODE_MOV, reg_null, this->result));
+ inst->conditional_mod = BRW_CONDITIONAL_NZ;
+ }
+}
+
+void
fs_visitor::visit(ir_if *ir)
{
fs_inst *inst;
@@ -1352,10 +1365,7 @@ fs_visitor::visit(ir_if *ir)
*/
this->base_ir = ir->condition;
- /* Generate the condition into the condition code. */
- ir->condition->accept(this);
- inst = emit(fs_inst(BRW_OPCODE_MOV, fs_reg(brw_null_reg()), this->result));
- inst->conditional_mod = BRW_CONDITIONAL_NZ;
+ emit_bool_to_cond_code(ir->condition);
inst = emit(fs_inst(BRW_OPCODE_IF));
inst->predicated = true;