Generalize -msse2 command line flag to -msse<version number>
I'm looking into adding support for the popcnt instruction. The instruction should be used if the user specifies -msse4.2*. I think we should generalize the -msse2 flag to be just -msse followed by a version number.
- Although not formally part of the SSE 4.2 instruction set, the
popcntinstruction was added at the same time. GCC enables thepopcntinstruction if you specify-msse4.2, so I thought it'd be reasonable for us to do so as well.
Trac metadata
| Trac field | Value |
|---|---|
| Version | 7.0.4 |
| Type | FeatureRequest |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Compiler |
| Test case | |
| Differential revisions | |
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| Blocking | |
| CC | johan.tibell@gmail.com |
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