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ICE with codegen-units=0 #32191
Description
Invoking Rustc with rustc -C codegen-units=0 foo.rs triggers an ICE:
error: internal compiler error: unexpected panic
note: the compiler unexpectedly panicked. this is a bug.
note: we would appreciate a bug report: https://github.com/rust-lang/rust/blob/m
aster/CONTRIBUTING.md#bug-reports
note: run with `RUST_BACKTRACE=1` for a backtrace
thread 'rustc' panicked at 'index out of bounds: the len is 0 but the index is 0
', ../src/libcollections\vec.rs:1179
note: Run with `RUST_BACKTRACE=1` for a backtrace.
Probably easy to fix.
Activity
Don't allow values for codegen-units less than 1 (fixes rust-lang#32191)
Manishearth commentedon Mar 12, 2016
The actual ICE is from
SharedCrateContextassuming thatlocal_ccxscontains something. But it should always contain something, best to catch this early when constructing options.Rollup merge of rust-lang#32212 - Manishearth:ice-cu, r=eddyb