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authormarha <marha@users.sourceforge.net>2012-09-20 08:18:11 +0200
committermarha <marha@users.sourceforge.net>2012-09-20 08:18:11 +0200
commit06d4ea68085558b94d8e9c937091e7b7fcc5d95a (patch)
tree01ff2f6a8d6ae430a526282d98eede21c7cfffd0 /mesalib/src/mesa/program/register_allocate.c
parent52213f2cd11c6cc7210cea6896ed464fddfe3fec (diff)
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libxcb xserver pixman mesa git update 20 sep 2012
libxcb: 08cc068ead7b8e678cdb119b38ada5261d5cc3ea xserver: 70e5766874a919039678bb2ed75f2ccea0cb4345 pixman: 3124a51abb89475b8c5045bc96e04c5852694a16 mesa: bd8fb9e80562fbe0ff76cae50fc411635096f3a9
Diffstat (limited to 'mesalib/src/mesa/program/register_allocate.c')
-rw-r--r--mesalib/src/mesa/program/register_allocate.c15
1 files changed, 14 insertions, 1 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().
*/