-O -g breaks string literals
With foo.hs:
main = print (4, "foo")Compile it and run it like:
% ghc-stage2 -O -g foo.hs
% ./foo
(4,"\CANq@")Note that the content of the string literal is broken, although the length is preserved.
With -dcore-lint, the following error is produced:
*** Core Lint errors : in result of Simplifier ***
<no location info>: warning:
[RHS of ww2_s3hG :: Addr#]
Recursive or top-level binder has strict demand info: ww2_s3hG
Binder's demand info: <L,U>The offending binding is:
ww2_s3hG :: Addr#
[LclId,
Unf=Unf{Src=<vanilla>, TopLvl=False, Value=True, ConLike=True,
WorkFree=True, Expandable=True, Guidance=IF_ARGS [] 20 0}]
ww2_s3hG = src<foo.hs:1:18-22> "foo"#Happens with ghc 8.4.1-rc1 and with HEAD (df2c3b33).
Trac metadata
| Trac field | Value |
|---|---|
| Version | 8.5 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Compiler |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | |
| Operating system | |
| Architecture |