Off-by-one error in FastString.getFastStringTable
There is an off-by-one-error in FastString.getFastStringTable that causes GHC to segfault when passed the -dfaststring-stats flag due to accessing contents past the end of an array.
The fix is simple: replace hASH_TBL_SIZE with hASH_TBL_SIZE-1 in the offending function.
Trac metadata
| Trac field | Value |
|---|---|
| Version | 7.6.3 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Compiler |
| Test case | |
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| Operating system | |
| Architecture |