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-rw-r--r--src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp53
1 files changed, 21 insertions, 32 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
index f9447d7c391..e11ec40cc7b 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
@@ -700,58 +700,47 @@ vec4_visitor::visit(ir_variable *ir)
void
vec4_visitor::visit(ir_loop *ir)
{
- ir_dereference_variable *counter = NULL;
-
- fail("not yet\n");
+ dst_reg counter;
/* We don't want debugging output to print the whole body of the
* loop as the annotation.
*/
this->base_ir = NULL;
- if (ir->counter != NULL)
- counter = new(ir) ir_dereference_variable(ir->counter);
-
- if (ir->from != NULL) {
- assert(ir->counter != NULL);
+ if (ir->counter != NULL) {
+ this->base_ir = ir->counter;
+ ir->counter->accept(this);
+ counter = *(variable_storage(ir->counter));
- ir_assignment *a = new(ir) ir_assignment(counter, ir->from, NULL);
+ if (ir->from != NULL) {
+ this->base_ir = ir->from;
+ ir->from->accept(this);
- a->accept(this);
- delete a;
+ emit(BRW_OPCODE_MOV, counter, this->result);
+ }
}
emit(BRW_OPCODE_DO);
if (ir->to) {
- ir_expression *e =
- new(ir) ir_expression(ir->cmp, glsl_type::bool_type,
- counter, ir->to);
- ir_if *if_stmt = new(ir) ir_if(e);
-
- ir_loop_jump *brk = new(ir) ir_loop_jump(ir_loop_jump::jump_break);
-
- if_stmt->then_instructions.push_tail(brk);
+ this->base_ir = ir->to;
+ ir->to->accept(this);
- if_stmt->accept(this);
+ vec4_instruction *inst = emit(BRW_OPCODE_CMP, dst_null_d(),
+ src_reg(counter), this->result);
+ inst->conditional_mod = brw_conditional_for_comparison(ir->cmp);
- delete if_stmt;
- delete e;
- delete brk;
+ inst = emit(BRW_OPCODE_BREAK);
+ inst->predicate = BRW_PREDICATE_NORMAL;
}
visit_instructions(&ir->body_instructions);
- if (ir->increment) {
- ir_expression *e =
- new(ir) ir_expression(ir_binop_add, counter->type,
- counter, ir->increment);
-
- ir_assignment *a = new(ir) ir_assignment(counter, e, NULL);
- a->accept(this);
- delete a;
- delete e;
+ if (ir->increment) {
+ this->base_ir = ir->increment;
+ ir->increment->accept(this);
+ emit(BRW_OPCODE_ADD, counter, src_reg(counter), this->result);
}
emit(BRW_OPCODE_WHILE);