diff --git a/src/amd/compiler/aco_instruction_selection.cpp b/src/amd/compiler/aco_instruction_selection.cpp index 4f7edaea96e..79c49afb7c2 100644 --- a/src/amd/compiler/aco_instruction_selection.cpp +++ b/src/amd/compiler/aco_instruction_selection.cpp @@ -2091,12 +2091,20 @@ void visit_alu_instr(isel_context *ctx, nir_alu_instr *instr) } case nir_op_fsign: { Temp src = as_vgpr(ctx, get_alu_src(ctx, instr->src[0])); - if (dst.size() == 1) { + if (dst.regClass() == v2b) { + Temp one = bld.copy(bld.def(v1), Operand(0x3c00u)); + Temp minus_one = bld.copy(bld.def(v1), Operand(0xbc00u)); + Temp cond = bld.vopc(aco_opcode::v_cmp_nlt_f16, bld.hint_vcc(bld.def(bld.lm)), Operand(0u), src); + src = bld.vop2(aco_opcode::v_cndmask_b32, bld.def(v1), one, src, cond); + cond = bld.vopc(aco_opcode::v_cmp_le_f16, bld.hint_vcc(bld.def(bld.lm)), Operand(0u), src); + Temp tmp = bld.vop2(aco_opcode::v_cndmask_b32, bld.def(v1), minus_one, src, cond); + bld.pseudo(aco_opcode::p_split_vector, Definition(dst), bld.def(v2b), tmp); + } else if (dst.regClass() == v1) { Temp cond = bld.vopc(aco_opcode::v_cmp_nlt_f32, bld.hint_vcc(bld.def(bld.lm)), Operand(0u), src); src = bld.vop2(aco_opcode::v_cndmask_b32, bld.def(v1), Operand(0x3f800000u), src, cond); cond = bld.vopc(aco_opcode::v_cmp_le_f32, bld.hint_vcc(bld.def(bld.lm)), Operand(0u), src); bld.vop2(aco_opcode::v_cndmask_b32, Definition(dst), Operand(0xbf800000u), src, cond); - } else if (dst.size() == 2) { + } else if (dst.regClass() == v2) { Temp cond = bld.vopc(aco_opcode::v_cmp_nlt_f64, bld.hint_vcc(bld.def(bld.lm)), Operand(0u), src); Temp tmp = bld.vop1(aco_opcode::v_mov_b32, bld.def(v1), Operand(0x3FF00000u)); Temp upper = bld.vop2_e64(aco_opcode::v_cndmask_b32, bld.def(v1), tmp, emit_extract_vector(ctx, src, 1, v1), cond);