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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
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