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nak/sm50: Stop using ALUSrc for IADD2

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Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26114>
This commit is contained in:
Faith Ekstrand 2023-11-13 12:33:46 -06:00 • committed by Marge Bot
parent 998c470f58
commit 1ae43d2606
1 changed files with 13 additions and 23 deletions
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36
src/nouveau/compiler/nak/encode_sm50.rs
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@ -1885,48 +1885,38 @@ impl SM50Instr {
}
fn encode_iadd2(&mut self, op: &OpIAdd2) {
/* TODO: support modifiers with imm32 (bit 56) */
assert!(op.srcs[0].is_reg_or_zero());
let neg_0_bit;
if let Some(imm32) = op.srcs[1].as_imm_not_i20() {
self.set_opcode(0x1c00);
self.set_dst(op.dst);
self.set_reg_ineg_src(8..16, 56, op.srcs[0]);
self.set_src_imm32(20..56, imm32);
neg_0_bit = Some(56);
self.set_bit(53, op.carry_in);
self.set_bit(52, op.carry_out);
} else {
let alu_src_1 = ALUSrc::from_src(&op.srcs[1]);
neg_0_bit = Some(49);
match &alu_src_1 {
ALUSrc::None => panic!("Invalid source for IADD2"),
ALUSrc::Reg(reg) => {
match &op.srcs[1].src_ref {
SrcRef::Zero | SrcRef::Reg(_) => {
self.set_opcode(0x5c10);
self.set_alu_reg_src(20..28, None, Some(48), &alu_src_1);
self.set_reg_ineg_src(20..28, 48, op.srcs[1]);
}
ALUSrc::Imm32(imm) => {
SrcRef::Imm32(imm) => {
self.set_opcode(0x3810);
self.set_src_imm_i20(20..40, 56, *imm);
}
ALUSrc::CBuf(cbuf) => {
SrcRef::CBuf(_) => {
self.set_opcode(0x4c10);
self.set_alu_cb(20..39, None, Some(48), cbuf);
self.set_cb_ineg_src(20..39, 48, op.srcs[1]);
}
src => panic!("Unsupported src type for IADD: {src}"),
}
self.set_dst(op.dst);
self.set_reg_ineg_src(8..16, 49, op.srcs[0]);
self.set_bit(43, op.carry_in);
self.set_bit(47, op.carry_out);
}
self.set_alu_reg_src(
8..16,
None,
neg_0_bit,
&ALUSrc::from_src(&op.srcs[0]),
);
self.set_dst(op.dst);
}
fn encode_prmt(&mut self, op: &OpPrmt) {