Make our handling of MMX x SSE closer to what gcc does:

* Enabling sse enables mmx.
* Disabling (-mno-mmx) mmx, doesn't disable sse (we got this right already).
* The order in not important. -msse -mno-mmx is the same as -mno-mmx -msse.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145194 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed