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nir/lower_io_to_scalar: add new_component temporary variable

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The next commit will use it. No change in behavior.

Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29406>
This commit is contained in:
Marek Olšák 2024-05-26 22:58:20 -04:00 • committed by Marge Bot
parent 06e4e088a3
commit 756b4f907e
1 changed files with 10 additions and 10 deletions
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20
src/compiler/nir/nir_lower_io_to_scalar.c
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@ -143,6 +143,8 @@ lower_store_output_to_scalar(nir_builder *b, nir_intrinsic_instr *intr)
bool is_64bit = (nir_intrinsic_instr_src_type(intr, 0) & NIR_ALU_TYPE_SIZE_MASK) == 64;
unsigned newi = is_64bit ? i * 2 : i;
unsigned newc = nir_intrinsic_component(intr);
unsigned new_component = (newc + newi) % 4;
nir_intrinsic_instr *chan_intr =
nir_intrinsic_instr_create(b->shader, intr->intrinsic);
chan_intr->num_components = 1;
@ -151,26 +153,24 @@ lower_store_output_to_scalar(nir_builder *b, nir_intrinsic_instr *intr)
chan_intr->name = intr->name;
nir_intrinsic_set_base(chan_intr, nir_intrinsic_base(intr));
nir_intrinsic_set_write_mask(chan_intr, 0x1);
nir_intrinsic_set_component(chan_intr, (newc + newi) % 4);
nir_intrinsic_set_component(chan_intr, new_component);
nir_intrinsic_set_src_type(chan_intr, nir_intrinsic_src_type(intr));
set_io_semantics(chan_intr, intr, i);
if (nir_intrinsic_has_io_xfb(intr)) {
/* Scalarize transform feedback info. */
unsigned component = nir_intrinsic_component(chan_intr);
for (unsigned c = 0; c <= component; c++) {
for (unsigned c = 0; c <= new_component; c++) {
nir_io_xfb xfb = c < 2 ? nir_intrinsic_io_xfb(intr) : nir_intrinsic_io_xfb2(intr);
if (component < c + xfb.out[c % 2].num_components) {
if (new_component < c + xfb.out[c % 2].num_components) {
nir_io_xfb scalar_xfb;
memset(&scalar_xfb, 0, sizeof(scalar_xfb));
scalar_xfb.out[component % 2].num_components = is_64bit ? 2 : 1;
scalar_xfb.out[component % 2].buffer = xfb.out[c % 2].buffer;
scalar_xfb.out[component % 2].offset = xfb.out[c % 2].offset +
component - c;
if (component < 2)
scalar_xfb.out[new_component % 2].num_components = is_64bit ? 2 : 1;
scalar_xfb.out[new_component % 2].buffer = xfb.out[c % 2].buffer;
scalar_xfb.out[new_component % 2].offset = xfb.out[c % 2].offset +
new_component - c;
if (new_component < 2)
nir_intrinsic_set_io_xfb(chan_intr, scalar_xfb);
else
nir_intrinsic_set_io_xfb2(chan_intr, scalar_xfb);