diff options
Diffstat (limited to 'mesalib/src/mesa')
| -rw-r--r-- | mesalib/src/mesa/program/register_allocate.c | 15 | ||||
| -rw-r--r-- | mesalib/src/mesa/program/register_allocate.h | 4 |
2 files changed, 17 insertions, 2 deletions
diff --git a/mesalib/src/mesa/program/register_allocate.c b/mesalib/src/mesa/program/register_allocate.c index f08c9d28d..97d4e331c 100644 --- a/mesalib/src/mesa/program/register_allocate.c +++ b/mesalib/src/mesa/program/register_allocate.c @@ -255,9 +255,11 @@ ra_class_add_reg(struct ra_regs *regs, unsigned int c, unsigned int r) /** * Must be called after all conflicts and register classes have been * set up and before the register set is used for allocation. + * To avoid costly q value computation, use the q_values paramater + * to pass precomputed q values to this function. */ void -ra_set_finalize(struct ra_regs *regs) +ra_set_finalize(struct ra_regs *regs, unsigned int **q_values) { unsigned int b, c; @@ -265,6 +267,15 @@ ra_set_finalize(struct ra_regs *regs) regs->classes[b]->q = ralloc_array(regs, unsigned int, regs->class_count); } + if (q_values) { + for (b = 0; b < regs->class_count; b++) { + for (c = 0; c < regs->class_count; c++) { + regs->classes[b]->q[c] = q_values[b][c]; + } + } + return; + } + /* Compute, for each class B and C, how many regs of B an * allocation to C could conflict with. */ @@ -490,6 +501,8 @@ ra_get_node_reg(struct ra_graph *g, unsigned int n) * input data). These nodes do not end up in the stack during * ra_simplify(), and thus at ra_select() time it is as if they were * the first popped off the stack and assigned their fixed locations. + * Nodes that use this function do not need to be assigned a register + * class. * * Must be called before ra_simplify(). */ diff --git a/mesalib/src/mesa/program/register_allocate.h b/mesalib/src/mesa/program/register_allocate.h index 00b851ec2..2a9d61191 100644 --- a/mesalib/src/mesa/program/register_allocate.h +++ b/mesalib/src/mesa/program/register_allocate.h @@ -43,7 +43,9 @@ void ra_add_reg_conflict(struct ra_regs *regs, void ra_add_transitive_reg_conflict(struct ra_regs *regs, unsigned int base_reg, unsigned int reg); void ra_class_add_reg(struct ra_regs *regs, unsigned int c, unsigned int reg); -void ra_set_finalize(struct ra_regs *regs); +void ra_set_num_conflicts(struct ra_regs *regs, unsigned int class_a, + unsigned int class_b, unsigned int num_conflicts); +void ra_set_finalize(struct ra_regs *regs, unsigned int **conflicts); /** @} */ /** @{ Interference graph setup. |