https://bugs.llvm.org/show_bug.cgi?id=35993
Bug ID: 35993
Summary: Write a TargetMachine creation API to replace
EngineBuilder
Product: libraries
Version: trunk
Hardware: All
OS: All
Status: NEW
Severity: enhancement
Priority: P
Component: OrcJIT
Assignee: unassignedb...@nondot.org
Reporter: lha...@gmail.com
CC: llvm-bugs@lists.llvm.org
ORC layers / components often need access to an llvm::TargetMachine (e.g. the
SimpleComplier class requires one). To date we've been relying on
EngineBuilder::selectTarget from ExecutionEngine, but this has a couple of
drawbacks: the interface and implementation are designed around
ExecutionEngine's assumptions (i.e. you're building an ExecutionEngine
subclass, that subclass might be an interpreter, etc.). The code is also older
and doesn't do any CPU feature detection.
We should design a new interface for building TargetMachines for LLVM JITs. It
should be clean, able to support CPU feature detection, and ideally efficiently
queryable from a remote machine (for remote execution).
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