diff options
Diffstat (limited to 'backend/lib/MIR/MIRFunctionParser.cpp')
| -rw-r--r-- | backend/lib/MIR/MIRFunctionParser.cpp | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/backend/lib/MIR/MIRFunctionParser.cpp b/backend/lib/MIR/MIRFunctionParser.cpp index a59e4bd..68bc0aa 100644 --- a/backend/lib/MIR/MIRFunctionParser.cpp +++ b/backend/lib/MIR/MIRFunctionParser.cpp @@ -285,12 +285,17 @@ bool MIRDocumentParser::parseRegisters(const yaml::Node &Root, MachineFunction & } if (const yaml::Node *Preferred = mappingValue(*Element, "preferred-register")) { + std::string_view PreferredName; PhysicalRegister Reg; - if (physicalRegister(*Preferred, Reg)) + if (scalar(*Preferred, PreferredName, "physical register")) return true; - auto AddResult = Function.registerInfo().addAllocationHint(*Created, Reg); - if (!AddResult) - return importError(Preferred->range(), AddResult.error()); + if (!trim(PreferredName).empty()) { + if (physicalRegister(PreferredName, Preferred->range(), Reg)) + return true; + auto AddResult = Function.registerInfo().addAllocationHint(*Created, Reg); + if (!AddResult) + return importError(Preferred->range(), AddResult.error()); + } } if (const yaml::Node *Flags = mappingValue(*Element, "flags")) { if (requireKind(*Flags, yaml::NodeKind::Sequence, "virtual-register flags")) |