enable -dcmm-lint by default for .cmm input files
I'm finding it's quite easy to write .cmm files with subtle errors that cause ghc to emit code that wasn't what I wanted! For example, I wrote a comparison between two arguments of different integer sizes and the code generator picked the wrong size. After tracking down the bug, I tried -dcmm-lint and it caught my error right away.
It makes sense not to have -dcmm-lint enabled by default for Cmm produced from Stg, but I've seen here on the GHC wiki that -dcmm-lint is advised for hand-written .cmm files. But integer-gmp, and probably many other packages, don't build .cmm files with -dcmm-lint. Is there a reason we can't/shouldn't just make it the default?
Trac metadata
| Trac field | Value |
|---|---|
| Version | 7.7 |
| Type | FeatureRequest |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Compiler |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | |
| Operating system | |
| Architecture |