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nak/legalize: Fix too many IADD3 source modifiers

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Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24998>
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Faith Ekstrand 2023-09-06 18:20:28 -05:00 • committed by Marge Bot
parent 0222107699
commit 86c7bcc9e3
1 changed files with 8 additions and 0 deletions
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8
src/nouveau/compiler/nak_legalize.rs
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@ -108,6 +108,14 @@ fn legalize_instr(b: &mut impl SSABuilder, instr: &mut Instr) {
let [ref mut src0, ref mut src1, ref mut src2] = op.srcs;
swap_srcs_if_not_reg(src0, src1);
swap_srcs_if_not_reg(src2, src1);
if !src0.src_mod.is_none() && !src1.src_mod.is_none() {
let val = b.alloc_ssa(RegFile::GPR, 1);
b.push_op(OpIAdd3 {
srcs: [Src::new_zero(), *src0, Src::new_zero()],
dst: val.into(),
});
*src0 = val.into();
}
copy_src_if_not_reg(b, src0, RegFile::GPR);
copy_src_if_not_reg(b, src2, RegFile::GPR);
}