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broadcom/compiler: handle fp16 conversion ops

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As long as fp16 isn't advertized it's not doing much, but it also doesn't
hurt to add them.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25362>
This commit is contained in:
Karol Herbst 2024-06-19 21:50:33 +02:00 • committed by Marge Bot
parent c2ec65eeda
commit 214121e9b0
1 changed files with 32 additions and 0 deletions
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32
src/broadcom/compiler/nir_to_vir.c
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@ -1417,11 +1417,15 @@ ntq_emit_alu(struct v3d_compile *c, nir_alu_instr *instr)
} else {
result = vir_FTOIZ(c, src[0]);
}
if (nir_src_bit_size(instr->src[0].src) == 16)
vir_set_unpack(c->defs[result.index], 0, V3D_QPU_UNPACK_L);
break;
}
case nir_op_f2u32:
result = vir_FTOUZ(c, src[0]);
if (nir_src_bit_size(instr->src[0].src) == 16)
vir_set_unpack(c->defs[result.index], 0, V3D_QPU_UNPACK_L);
break;
case nir_op_i2f32:
result = vir_ITOF(c, src[0]);
@ -1429,6 +1433,9 @@ ntq_emit_alu(struct v3d_compile *c, nir_alu_instr *instr)
case nir_op_u2f32:
result = vir_UTOF(c, src[0]);
break;
case nir_op_b2f16:
result = vir_AND(c, src[0], vir_uniform_ui(c, 0x3c00));
break;
case nir_op_b2f32:
result = vir_AND(c, src[0], vir_uniform_f(c, 1.0));
break;
@ -1436,6 +1443,31 @@ ntq_emit_alu(struct v3d_compile *c, nir_alu_instr *instr)
result = vir_AND(c, src[0], vir_uniform_ui(c, 1));
break;
case nir_op_i2f16: {
uint32_t bit_size = nir_src_bit_size(instr->src[0].src);
assert(bit_size <= 32);
if (bit_size < 32) {
uint32_t mask = bit_size == 16 ? 0xffff : 0xff;
result = vir_AND(c, src[0], vir_uniform_ui(c, mask));
result = sign_extend(c, result, bit_size, 32);
}
result = vir_ITOF(c, result);
vir_set_pack(c->defs[result.index], V3D_QPU_PACK_L);
break;
}
case nir_op_u2f16: {
uint32_t bit_size = nir_src_bit_size(instr->src[0].src);
assert(bit_size <= 32);
if (bit_size < 32) {
uint32_t mask = bit_size == 16 ? 0xffff : 0xff;
result = vir_AND(c, src[0], vir_uniform_ui(c, mask));
}
result = vir_UTOF(c, result);
vir_set_pack(c->defs[result.index], V3D_QPU_PACK_L);
break;
}
case nir_op_f2f16:
case nir_op_f2f16_rtne:
assert(nir_src_bit_size(instr->src[0].src) == 32);