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[X86] Change the Format attribute for TEST*rr instruction from the default MRMDestReg to MRMSrcReg

Authored by aymanmus on Sep 19 2017, 12:43 AM.



Correctly define the TEST{8 | 16 | 32 | 64}rr instructions Format attribute.

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aymanmus created this revision.Sep 19 2017, 12:43 AM
craig.topper edited edge metadata.Sep 20 2017, 7:28 PM

This is apparently a revert of the fix for

What is the real right answer? What motivated this change?

Did this come out of the folding table work? The real bug is that TEST8rm is wrong. But we don't notice because we have aliases to accept the memory operand in either location.

aymanmus abandoned this revision.Oct 1 2017, 1:43 AM

Fixed in D38120