[PATCH] [X86] Break false dependencies before partial register updates when the source operand is in memory

[Michael Kuperstein]

Heh.

Apparently even though SQRTSD was never on the list, there was a test that checked that memory operands into SQRTSD were not load-folded. The test apparently passed not because of this code, but because they weren't folded regardless. At some point, Manman improved the folding logic, and changed the test to verify that SQRTSD memory operands ARE in fact folded.

Rolling the test back as well.


http://reviews.llvm.org/D6620

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