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nir/serialize: pack load_const with non-64-bit constants better

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v2: use blob_write_uint8/16

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net> (v1)
Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
This commit is contained in:
Marek Olšák 2019-11-04 22:15:17 -05:00
parent a572ba673b
commit 75f7c38863
1 changed files with 46 additions and 2 deletions
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48
src/compiler/nir/nir_serialize.c
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@ -908,7 +908,30 @@ write_load_const(write_ctx *ctx, const nir_load_const_instr *lc)
header.load_const.bit_size = encode_bit_size_3bits(lc->def.bit_size);
blob_write_uint32(ctx->blob, header.u32);
blob_write_bytes(ctx->blob, lc->value, sizeof(*lc->value) * lc->def.num_components);
switch (lc->def.bit_size) {
case 64:
blob_write_bytes(ctx->blob, lc->value,
sizeof(*lc->value) * lc->def.num_components);
break;
case 32:
for (unsigned i = 0; i < lc->def.num_components; i++)
blob_write_uint32(ctx->blob, lc->value[i].u32);
break;
case 16:
for (unsigned i = 0; i < lc->def.num_components; i++)
blob_write_uint16(ctx->blob, lc->value[i].u16);
break;
default:
assert(lc->def.bit_size <= 8);
for (unsigned i = 0; i < lc->def.num_components; i++)
blob_write_uint8(ctx->blob, lc->value[i].u8);
break;
}
write_add_object(ctx, &lc->def);
}
@ -919,7 +942,28 @@ read_load_const(read_ctx *ctx, union packed_instr header)
nir_load_const_instr_create(ctx->nir, header.load_const.last_component + 1,
decode_bit_size_3bits(header.load_const.bit_size));
blob_copy_bytes(ctx->blob, lc->value, sizeof(*lc->value) * lc->def.num_components);
switch (lc->def.bit_size) {
case 64:
blob_copy_bytes(ctx->blob, lc->value, sizeof(*lc->value) * lc->def.num_components);
break;
case 32:
for (unsigned i = 0; i < lc->def.num_components; i++)
lc->value[i].u32 = blob_read_uint32(ctx->blob);
break;
case 16:
for (unsigned i = 0; i < lc->def.num_components; i++)
lc->value[i].u16 = blob_read_uint16(ctx->blob);
break;
default:
assert(lc->def.bit_size <= 8);
for (unsigned i = 0; i < lc->def.num_components; i++)
lc->value[i].u8 = blob_read_uint8(ctx->blob);
break;
}
read_add_object(ctx, &lc->def);
return lc;
}