[LLVMdev] Internal llvm error: UNREACHABLE executed at ARMCallingConv.h:213

[Vladimir Pouzanov]

Initially this one got triggered from rustc, so I don't have a simple test
case for you, unfortunately.

IR after processing through bugpoint:
https://gist.github.com/ff0487dadc8576d07bdf.

Symptoms:

rustc --target thumbv7em-linux-eabi -Ctarget-cpu=cortex-m4 --opt-level 2
libcore/lib.rs
Unexpected member type for HA
UNREACHABLE executed at
/Users/farcaller/temp/rust/src/llvm/lib/Target/ARM/ARMCallingConv.h:213!

Compiles as expected if either -O2 or target-cpu is removed.

-- 
Sincerely,
Vladimir "Farcaller" Pouzanov
http://farcaller.net/
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