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nak/sm50: Rewrite the encoding for OpIMnMx

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Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26114>
This commit is contained in:
Faith Ekstrand 2023-11-09 16:34:37 -06:00 • committed by Marge Bot
parent 20176035f6
commit bdf0c300e1
1 changed files with 18 additions and 24 deletions
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42
src/nouveau/compiler/nak/encode_sm50.rs
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@ -1042,32 +1042,26 @@ impl SM50Instr {
}
fn encode_imnmx(&mut self, op: &OpIMnMx) {
assert!(op.srcs[0].is_reg_or_zero());
assert!(op.srcs[1].is_reg_or_zero());
let src_modifier = Some(ALUSrcsModifier {
src0_opt: None,
src1_opt: None,
src2_opt: None,
});
let encoding_info = ALUEncodingInfo {
opcode: 0x20,
encoding_type: ALUEncodingType::Variant4,
reg_modifier: src_modifier,
imm24_modifier: src_modifier,
cbuf_modifier: src_modifier,
imm32_behavior_opt: None,
};
self.encode_alu(
encoding_info,
Some(op.dst),
ALUSrc::from_src(&op.srcs[0]),
ALUSrc::from_src(&op.srcs[1]),
ALUSrc::None,
);
match &op.srcs[1].src_ref {
SrcRef::Zero | SrcRef::Reg(_) => {
self.set_opcode(0x5c20);
self.set_reg_src(20..28, op.srcs[1]);
}
SrcRef::Imm32(i) => {
self.set_opcode(0x3820);
self.set_src_imm_f20(20..39, 56, *i);
}
SrcRef::CBuf(cb) => {
self.set_opcode(0x4c20);
self.set_src_cb(20..39, cb);
}
src1 => panic!("unsupported src1 type for IMNMX: {src1}"),
}
self.set_dst(op.dst);
self.set_reg_src(8..16, op.srcs[0]);
self.set_pred_src(39..42, 42, op.min);
self.set_bit(47, false); // .CC
self.set_bit(
48,
match op.cmp_type {