LLVM Compiler Backend Engineer

Project

Work done for a product or program.

• Implement new instruction selection and register allocation patterns for the target ISA.
• Add support for new ISA extensions and scheduling models ahead of silicon tape-out.
• Diagnose miscompiles and wrong-code bugs reported from customers and internal test farms.
• Tune code size and performance on SPEC, CoreMark and customer kernels.
• Upstream backend patches to LLVM and respond to maintainer review.
• Maintain target-specific intrinsics, builtins and ABI conformance.
• Work with architects to give feedback on ISA features that hurt codegen.

Function

Work that keeps the discipline running: methods, tools, suppliers and people.

• Maintain the policies, processes and tools of the function.General
• Keep the function compliant with legal, financial and regulatory requirements.General
• Report the function's performance and improve it over time.General

Project

1. Produce and hand over the role's key deliverables
   • LLVM target backend patches
   • Scheduling and cost models for new cores
   • Compiler regression and benchmark reports
   • Compiler release branches for the SDK
2. Support programsGeneral
   • Agree what each program needs
   • Deliver in time for milestones
3. Manage issuesGeneral
   • Track requests to closure
   • Escalate risks

Function

1. Run the functionGeneral
   • Maintain policies and processes
   • Keep records and controls
2. ImproveGeneral
   • Report performance
   • Lead improvement work