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nir: Add nir_intrinsic_terminate and nir_intrinsic_terminate_if

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Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7150>
This commit is contained in:
Caio Marcelo de Oliveira Filho
2020-05-08 09:08:34 -07:00
committed by Marge Bot
parent fdb65b8b23
commit f6d5dd825f
6 changed files with 36 additions and 5 deletions
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20
src/compiler/nir/nir_opt_constant_folding.c
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@@ -186,13 +186,25 @@ try_fold_intrinsic(nir_builder *b, nir_intrinsic_instr *instr,
bool progress = false;
if ((instr->intrinsic == nir_intrinsic_demote_if ||
instr->intrinsic == nir_intrinsic_discard_if) &&
instr->intrinsic == nir_intrinsic_discard_if ||
instr->intrinsic == nir_intrinsic_terminate_if) &&
nir_src_is_const(instr->src[0])) {
if (nir_src_as_bool(instr->src[0])) {
b->cursor = nir_before_instr(&instr->instr);
nir_intrinsic_op op = instr->intrinsic == nir_intrinsic_discard_if ?
nir_intrinsic_discard :
nir_intrinsic_demote;
nir_intrinsic_op op;
switch (instr->intrinsic) {
case nir_intrinsic_discard_if:
op = nir_intrinsic_discard;
break;
case nir_intrinsic_demote_if:
op = nir_intrinsic_demote;
break;
case nir_intrinsic_terminate_if:
op = nir_intrinsic_terminate;
break;
default:
unreachable("invalid intrinsic");
}
nir_intrinsic_instr *new_instr =
nir_intrinsic_instr_create(b->shader, op);
nir_builder_instr_insert(b, &new_instr->instr);