aco: add builder function for subdword copy()

Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-By: Timur Kristóf <timur.kristof@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4002>
This commit is contained in:
Daniel Schürmann 2020-02-27 13:04:39 +01:00
parent 9f779a2518
commit ca38c1f1f1

View file

@ -352,6 +352,7 @@ public:
Result copy(Definition dst, Op op_) {
Operand op = op_.op;
assert(op.bytes() == dst.bytes());
if (dst.regClass() == s1 && op.size() == 1 && op.isLiteral()) {
uint32_t imm = op.constantValue();
if (imm == 0x3e22f983) {
@ -372,15 +373,24 @@ public:
}
}
if (dst.regClass() == s2) {
if (dst.regClass() == s1) {
return sop1(aco_opcode::s_mov_b32, dst, op);
} else if (dst.regClass() == s2) {
return sop1(aco_opcode::s_mov_b64, dst, op);
} else if (op.size() > 1) {
return pseudo(aco_opcode::p_create_vector, dst, op);
} else if (dst.regClass() == v1 || dst.regClass() == v1.as_linear()) {
return vop1(aco_opcode::v_mov_b32, dst, op);
} else if (op.bytes() > 2) {
return pseudo(aco_opcode::p_create_vector, dst, op);
} else if (dst.regClass().is_subdword()) {
aco_ptr<SDWA_instruction> sdwa{create_instruction<SDWA_instruction>(aco_opcode::v_mov_b32, asSDWA(Format::VOP1), 1, 1)};
sdwa->operands[0] = op;
sdwa->definitions[0] = dst;
sdwa->sel[0] = op.bytes() == 1 ? sdwa_ubyte : sdwa_uword;
sdwa->dst_sel = dst.bytes() == 1 ? sdwa_ubyte : sdwa_uword;
sdwa->dst_preserve = true;
return insert(std::move(sdwa));
} else {
assert(dst.regClass() == s1);
return sop1(aco_opcode::s_mov_b32, dst, op);
unreachable("Unhandled case in bld.copy()");
}
}