Missing optimisation: strength reduction of floating-point multiplication
e.g. x * 2.0
should turn into x + x
. See #2253 (closed) (program 6) for an example.
Whether this is best done as a builtin RULE or in cmmMachOpFold
, or possibly both, I don't know.
Trac metadata
Trac field | Value |
---|---|
Version | 7.4.2 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | Compiler |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | |
Architecture |