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lima/ppir: merge branch nodes in simple cases

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In some simple cases, we can merge the branch operation with an existing
instruction and avoid the creation of an empty new instruction just for
the branch node.

Signed-off-by: Erico Nunes <nunes.erico@gmail.com>
Reviewed-by: Vasily Khoruzhick <anarsoul@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16163>
This commit is contained in:
Erico Nunes 2022-04-26 11:09:47 +02:00 • committed by Marge Bot
parent c3f13ee551
commit 106dc60fc0
1 changed files with 12 additions and 0 deletions
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12
src/gallium/drivers/lima/ir/pp/node_to_instr.c
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@ -58,6 +58,18 @@ static bool ppir_do_node_to_instr_try_insert(ppir_block *block, ppir_node *node)
return ppir_instr_insert_node(succ->instr, node);
}
if (ppir_node_has_single_succ(node) &&
ppir_node_has_single_pred(ppir_node_first_succ(node)) &&
(ppir_node_first_succ(node)->type == ppir_node_type_branch)) {
assert(ppir_node_has_single_succ(node));
ppir_node *succ = ppir_node_first_succ(node);
assert(succ);
assert(succ->instr);
return ppir_instr_insert_node(succ->instr, node);
}
switch (node->type) {
case ppir_node_type_load:
break;