[PATCH] D66424: [X86][Btver2] Fix latency and throughput of CMPXCHG instructions.

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added inline comments.


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Comment at: test/tools/llvm-mca/X86/BtVer2/resources-cmpxchg.s:48
+# CHECK-NEXT:  6      17    17.00   *      *            lock		cmpxchgl	%ebx, (%rsi)
+# CHECK-NEXT:  6      17    17.00   *      *            lock		cmpxchgq	%rbx, (%rsi)
 
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Only the 8b/16b ops should be in resources-cmpxchg.s, the rest should be in resources-x86_64.s - the non-lock ops are already there. Ideally we'd have coverage for all the other lock ops (ADD, ADC, etc.) but I'm happy to deal with that later.


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  https://reviews.llvm.org/D66424/new/

https://reviews.llvm.org/D66424