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nak: sm50: rewrite iabs to not use encode_alu

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Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26114>
This commit is contained in:
Daniel Almeida 2023-10-23 11:48:03 -05:00 • committed by Marge Bot
parent 9f34a3c61d
commit 2adf5a3437
1 changed files with 16 additions and 25 deletions
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41
src/nouveau/compiler/nak/encode_sm50.rs
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@ -1837,35 +1837,26 @@ impl SM50Instr {
let src_type = IntType::I32;
let dst_type = IntType::I32;
let src_modifier = Some(ALUSrcsModifier {
src0_opt: None,
src1_opt: Some(ALUModifierInfo {
abs_bit: Some(49),
neg_bit: Some(45),
}),
src2_opt: None,
});
let encoding_info = ALUEncodingInfo {
opcode: 0xe0,
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::None,
src1,
ALUSrc::None,
);
match &src1 {
ALUSrc::None => panic!("Invalid source for IABS"),
ALUSrc::Imm32(imm32) => {
self.set_opcode(0x38e0);
self.set_src_imm_f20(20..40, 56, *imm32);
}
ALUSrc::Reg(reg) => {
self.set_opcode(0x5ce0);
self.set_alu_reg_src(20..28, Some(45), Some(49), &src1);
}
ALUSrc::CBuf(cbuf) => {
self.set_opcode(0x4ce0);
self.set_alu_cb(20..39, Some(45), Some(49), cbuf);
}
}
self.set_bit(12, dst_type.is_signed());
self.set_bit(13, src_type.is_signed());
self.set_field(8..10, (dst_type.bits() / 8).ilog2());
self.set_field(10..12, (src_type.bits() / 8).ilog2());
self.set_dst(op.dst);
}
fn encode_iadd2(&mut self, op: &OpIAdd2) {