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intel/fs: Implement 16-bit [ui]mul_high

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Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15829>
This commit is contained in:
Jason Ekstrand
2022-04-08 15:17:12 -05:00
committed by Marge Bot
parent d0ace28790
commit a482877c70
1 changed files with 7 additions and 1 deletions
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8
src/intel/compiler/brw_fs_nir.cpp
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@@ -1359,7 +1359,13 @@ fs_visitor::nir_emit_alu(const fs_builder &bld, nir_alu_instr *instr,
case nir_op_imul_high:
case nir_op_umul_high:
assert(nir_dest_bit_size(instr->dest.dest) < 64);
bld.emit(SHADER_OPCODE_MULH, result, op[0], op[1]);
if (nir_dest_bit_size(instr->dest.dest) == 32) {
bld.emit(SHADER_OPCODE_MULH, result, op[0], op[1]);
} else {
fs_reg tmp = bld.vgrf(brw_reg_type_from_bit_size(32, op[0].type));
bld.MUL(tmp, op[0], op[1]);
bld.MOV(result, subscript(tmp, result.type, 1));
}
break;
case nir_op_idiv: