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[rustc.git] / src / doc / rustc-dev-guide / src / ice-breaker / llvm.md

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-# LLVM ICE-breakers
-
-**Github Label:** [ICEBreaker-LLVM]
-
-[ICEBreaker-LLVM]: https://github.com/rust-lang/rust/labels/ICEBreaker-LLVM
-
-The "LLVM ICE-breakers" are focused on bugs that center around LLVM.
-These bugs often arise because of LLVM optimizations gone awry, or as
-the result of an LLVM upgrade. The goal here is:
-
-- to determine whether the bug is a result of us generating invalid LLVM IR,
-  or LLVM misoptimizing;
-- if the former, to fix our IR;
-- if the latter, to try and file a bug on LLVM (or identify an existing bug).
-
-## Helpful tips and options
-
-The ["Debugging LLVM"][d] section of the
-rustc-dev-guide gives a step-by-step process for how to help debug bugs
-caused by LLVM. In particular, it discusses how to emit LLVM IR, run
-the LLVM IR optimization pipeliness, and so forth. You may also find
-it useful to look at the various codegen options listed under `-Chelp`
-and the internal options under `-Zhelp` -- there are a number that
-pertain to LLVM (just search for LLVM).
-
-[d]: ../backend/debugging.md
-
-## If you do narrow to an LLVM bug
-
-The ["Debugging LLVM"][d] section also describes what to do once
-you've identified the bug.