Commit 45c6fbc5 authored by Ben Gamari's avatar Ben Gamari 🐢

Document -fllvm-fill-undef-with-garbage

parent d50609e8
......@@ -333,6 +333,12 @@ Checking for consistency
Ditto for C-- level.
.. ghc-flag:: -fllvm-fill-undef-with-garbage
Instructs the LLVM code generator to fill dead STG registers with garbage
instead of ``undef`` in calls. This makes it easier to catch subtle
code generator and runtime system bugs (e.g. see :ghc-ticket:`11487`).
.. _checking-determinism:
Checking for determinism
......
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