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i965: Remove my "safety counter" code from loops. 

I've screwed this up enough times that I don't think it's worth it.
This time, it was that I was doing it once per top-level body
instruction instead of just once at the end of the loop body.
This commit is contained in:
Eric Anholt 2010-09-29 16:20:48 -07:00
parent b90c7d1713
commit ad1506c5ac
1 changed files with 0 additions and 14 deletions
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14
src/mesa/drivers/dri/i965/brw_fs.cpp
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@ -1400,12 +1400,6 @@ fs_visitor::visit(ir_loop *ir)
}
}
/* Start a safety counter. If the user messed up their loop
* counting, we don't want to hang the GPU.
*/
fs_reg max_iter = fs_reg(this, glsl_type::int_type);
emit(fs_inst(BRW_OPCODE_MOV, max_iter, fs_reg(10000)));
emit(fs_inst(BRW_OPCODE_DO));
if (ir->to) {
@ -1445,17 +1439,9 @@ fs_visitor::visit(ir_loop *ir)
foreach_iter(exec_list_iterator, iter, ir->body_instructions) {
ir_instruction *ir = (ir_instruction *)iter.get();
fs_inst *inst;
this->base_ir = ir;
ir->accept(this);
/* Check the maximum loop iters counter. */
inst = emit(fs_inst(BRW_OPCODE_ADD, max_iter, max_iter, fs_reg(-1)));
inst->conditional_mod = BRW_CONDITIONAL_Z;
inst = emit(fs_inst(BRW_OPCODE_BREAK));
inst->predicated = true;
}
if (ir->increment) {