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[X86] Don't use fsin/fcos/fsincos instructions ever

Description

[X86] Don't use fsin/fcos/fsincos instructions ever

Summary:
Previously we would use these instructions if sse was disabled and fastmath was enabled.

As mentioned in D28335, this is a bad idea.

Reviewers: efriedma, scanon, DavidKreitzer

Reviewed By: DavidKreitzer

Subscribers: zvi, llvm-commits

Differential Revision: https://reviews.llvm.org/D36344

Details

Committed
ctopperAug 11 2017, 1:55 PM
Reviewer
DavidKreitzer
Differential Revision
D36344: [X86] Don't use fsin/fcos/fsincos instructions ever
Parents
rL310761: [libcxx] [test] Rename _Up to U, etc. NFCI.
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