llvm-module-flag
This flag allows adding a key/value to the !llvm.module.flags
metadata in the
LLVM-IR for a compiled Rust module. The syntax is
-Z llvm_module_flag=<name>:<type>:<value>:<behavior>
Currently only u32 values are supported but the type is required to be specified
for forward compatibility. The behavior
element must match one of the named
LLVM metadata behaviors