[PATCH] D50070: [X86] Improved sched models for X86 CMPXCHG* instructions

Andrew V. Tischenko via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Tue Aug 28 10:19:00 PDT 2018


avt77 added inline comments.


================
Comment at: lib/Target/X86/X86SchedSandyBridge.td:119
+defm : X86WriteRes<WriteCMPXCHG,   [SBPort05, SBPort015], 5, [1,3], 4>;
+defm : X86WriteRes<WriteCMPXCHGRMW,[SBPort015, SBPort5, SBPort23, SBPort4], 8, [1, 2, 2, 1], 7>;
 
----------------
craig.topper wrote:
> Shouldn't this be 6 uops not 7?
Yes, you suggested 6 in your first comments I'll fix it asap.


https://reviews.llvm.org/D50070





More information about the llvm-commits mailing list