[PATCH] D135933: [X86] Add CMPCCXADD instructions.

[Craig Topper via Phabricator via cfe-commits]

craig.topper added inline comments.


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Comment at: llvm/lib/Target/X86/MCTargetDesc/X86BaseInfo.h:1071
         return 1;
       // Check for AVX-512 scatter which has a TIED_TO in the second to last
       // operand.
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craig.topper wrote:
> This comment is out of date.
I'd prefer if you fixed the comment rather than deleting it.


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Comment at: llvm/lib/Target/X86/X86InstrInfo.td:3027
+def CMPCCXADDmr32 : I<0xe0, MRMDestMem4VOp3CC, (outs GR32:$dst),
+          (ins i32mem:$dstsrc1, GR32:$dstsrc2, GR32:$src3, ccode:$cond),
+          "cmp${cond}xadd\t{$src3, $dst, $dstsrc1|$dstsrc1, $dst, $src3}",
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Can we put $dstsrc2 before $dstsrc1 in the ins list? That would remove the need for the change in `getOperandBias` I think. But maybe it complicates the encoder and disassembler?


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Comment at: llvm/lib/Target/X86/X86InstrSSE.td:8125
 }
-
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Looks like there's a blank line being deleted here?


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  https://reviews.llvm.org/D135933/new/

https://reviews.llvm.org/D135933