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aco: use s_pack_hl for shfr16

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Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31509>
This commit is contained in:
Georg Lehmann
2024-10-03 16:31:10 +02:00
committed by Marge Bot
parent 27dbaccb5c
commit a6f82cf16d
1 changed files with 10 additions and 3 deletions
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src/amd/compiler/aco_instruction_selection.cpp
+10 -3
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@@ -3605,17 +3605,24 @@ visit_alu_instr(isel_context* ctx, nir_alu_instr* instr)
}
case nir_op_shfr: {
if (dst.regClass() == s1) {
Temp src = bld.pseudo(aco_opcode::p_create_vector, bld.def(s2),
get_alu_src(ctx, instr->src[1]), get_alu_src(ctx, instr->src[0]));
Temp src0 = get_alu_src(ctx, instr->src[0]);
Temp src1 = get_alu_src(ctx, instr->src[1]);
Temp amount;
if (nir_src_is_const(instr->src[2].src)) {
amount = bld.copy(bld.def(s1), Operand::c32(nir_src_as_uint(instr->src[2].src) & 0x1f));
unsigned camount = nir_src_as_uint(instr->src[2].src) & 0x1f;
if (camount == 16 && ctx->program->gfx_level >= GFX11) {
bld.sop2(aco_opcode::s_pack_hl_b32_b16, Definition(dst), src1, src0);
break;
}
amount = bld.copy(bld.def(s1), Operand::c32(camount));
} else {
amount = bld.sop2(aco_opcode::s_and_b32, bld.def(s1), bld.def(s1, scc),
get_alu_src(ctx, instr->src[2]), Operand::c32(0x1f));
}
Temp src = bld.pseudo(aco_opcode::p_create_vector, bld.def(s2), src1, src0);
Temp res = bld.sop2(aco_opcode::s_lshr_b64, bld.def(s2), bld.def(s1, scc), src, amount);
bld.pseudo(aco_opcode::p_extract_vector, Definition(dst), res, Operand::zero());
} else if (dst.regClass() == v1) {