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Summary

  1. [X86] Add 'mmx' to all CPUs that have a version of 'sse' and weren't (details)
Commit ba73aad4f64f52f2acb5394210ed829355b44383 by craig.topper
[X86] Add 'mmx' to all CPUs that have a version of 'sse' and weren't
already enabling '3dnow'
All SSE capable CPUs have MMX. 3dnow implicitly enables MMX.
We have code that detects if sse is enabled and implicitly enables MMX
unless -mno-mmx is passed. So in most cases we were already enabling MMX
if march passed a CPU that supported SSE.
The exception to this is if you pass -march for a cpu supports SSE and
also pass -mno-sse. We should still enable MMX since its part of the CPU
capability.
The file was modifiedclang/test/Preprocessor/x86_target_features.c
The file was modifiedclang/lib/Basic/Targets/X86.cpp