| 18 | } |
| 19 | |
| 20 | ASMJIT_FAVOR_SIZE Error FuncArgsContext::initWorkData(const FuncFrame& frame, const FuncArgsAssignment& args, const RAConstraints* constraints) noexcept { |
| 21 | Arch arch = frame.arch(); |
| 22 | const FuncDetail& func = *args.funcDetail(); |
| 23 | |
| 24 | _archTraits = &ArchTraits::byArch(arch); |
| 25 | _constraints = constraints; |
| 26 | _arch = arch; |
| 27 | |
| 28 | // Initialize `_archRegs`. |
| 29 | for (RegGroup group : RegGroupVirtValues{}) |
| 30 | _workData[group]._archRegs = _constraints->availableRegs(group); |
| 31 | |
| 32 | if (frame.hasPreservedFP()) |
| 33 | _workData[size_t(RegGroup::kGp)]._archRegs &= ~Support::bitMask(archTraits().fpRegId()); |
| 34 | |
| 35 | // Extract information from all function arguments/assignments and build Var[] array. |
| 36 | uint32_t varId = 0; |
| 37 | for (uint32_t argIndex = 0; argIndex < Globals::kMaxFuncArgs; argIndex++) { |
| 38 | for (uint32_t valueIndex = 0; valueIndex < Globals::kMaxValuePack; valueIndex++) { |
| 39 | const FuncValue& dst_ = args.arg(argIndex, valueIndex); |
| 40 | if (!dst_.isAssigned()) |
| 41 | continue; |
| 42 | |
| 43 | const FuncValue& src_ = func.arg(argIndex, valueIndex); |
| 44 | if (ASMJIT_UNLIKELY(!src_.isAssigned())) |
| 45 | return DebugUtils::errored(kErrorInvalidState); |
| 46 | |
| 47 | Var& var = _vars[varId]; |
| 48 | var.init(src_, dst_); |
| 49 | |
| 50 | FuncValue& src = var.cur; |
| 51 | FuncValue& dst = var.out; |
| 52 | |
| 53 | RegGroup dstGroup = RegGroup::kMaxValue; |
| 54 | uint32_t dstId = BaseReg::kIdBad; |
| 55 | WorkData* dstWd = nullptr; |
| 56 | |
| 57 | // Not supported. |
| 58 | if (src.isIndirect()) |
| 59 | return DebugUtils::errored(kErrorInvalidAssignment); |
| 60 | |
| 61 | if (dst.isReg()) { |
| 62 | RegType dstType = dst.regType(); |
| 63 | if (ASMJIT_UNLIKELY(!archTraits().hasRegType(dstType))) |
| 64 | return DebugUtils::errored(kErrorInvalidRegType); |
| 65 | |
| 66 | // Copy TypeId from source if the destination doesn't have it. The RA used by BaseCompiler would never |
| 67 | // leave TypeId undefined, but users of FuncAPI can just assign phys regs without specifying the type. |
| 68 | if (!dst.hasTypeId()) |
| 69 | dst.setTypeId(archTraits().regTypeToTypeId(dst.regType())); |
| 70 | |
| 71 | dstGroup = archTraits().regTypeToGroup(dstType); |
| 72 | if (ASMJIT_UNLIKELY(dstGroup > RegGroup::kMaxVirt)) |
| 73 | return DebugUtils::errored(kErrorInvalidRegGroup); |
| 74 | |
| 75 | dstWd = &_workData[dstGroup]; |
| 76 | dstId = dst.regId(); |
| 77 | if (ASMJIT_UNLIKELY(dstId >= 32 || !Support::bitTest(dstWd->archRegs(), dstId))) |
no test coverage detected