diff options
Diffstat (limited to 'src/amd')
| -rw-r--r-- | src/amd/compiler/aco_register_allocation.cpp | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/src/amd/compiler/aco_register_allocation.cpp b/src/amd/compiler/aco_register_allocation.cpp index a0a4a4f444f..897a5bc50c7 100644 --- a/src/amd/compiler/aco_register_allocation.cpp +++ b/src/amd/compiler/aco_register_allocation.cpp @@ -1738,8 +1738,14 @@ void register_allocation(Program *program, std::vector<TempSet>& live_out_per_bl instr->operands[1].isTemp() && instr->operands[1].getTemp().type() == RegType::vgpr && !instr->usesModifiers()) { - instr->format = Format::VOP2; - instr->opcode = aco_opcode::v_mac_f32; + unsigned def_id = instr->definitions[0].tempId(); + auto it = ctx.affinities.find(def_id); + if (it == ctx.affinities.end() || !ctx.assignments[it->second].assigned || + instr->operands[2].physReg() == ctx.assignments[it->second].reg || + register_file.test(ctx.assignments[it->second].reg, instr->operands[2].bytes())) { + instr->format = Format::VOP2; + instr->opcode = aco_opcode::v_mac_f32; + } } /* handle definitions which must have the same register as an operand */ |