SCC/HPC/CORE annotation can change the meaning of an expression
Consider this GHCi session:
Prelude> 1 / 2 / 2
0.25
Prelude> 1 / {-# SCC ann #-} 2 / 2
1.0
Adding an SCC annotation changed the meaning of the expression.
Trac metadata
Trac field | Value |
---|---|
Version | 8.6.1 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | high |
Resolution | Unresolved |
Component | Compiler (Parser) |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | |
Architecture |