[clang] [llvm] [X86][APX] Emit SetZUCC instead of legacy setcc when ZU is enabled (PR #173965)

[Feng Zou via cfe-commits]

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@@ -137,11 +137,13 @@ let Predicates = [HasCMOV, HasCF] in {
 }
 
 // SetCC instructions.
-let Uses = [EFLAGS], isCodeGenOnly = 1, ForceDisassemble = 1 in {
+let Uses = [EFLAGS], isCodeGenOnly = 1, ForceDisassemble = 1, Predicates = [PreferNoSetZUCC] in {
   def SETCCr : I<0x90, MRMXrCC, (outs GR8:$dst), (ins ccode:$cond),
                 "set${cond}\t$dst",
                 [(set GR8:$dst, (X86setcc timm:$cond, EFLAGS))]>,
                 TB, Sched<[WriteSETCC]>;
+}
+let Uses = [EFLAGS], isCodeGenOnly = 1, ForceDisassemble = 1 in {
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fzou1 wrote:

Updated. Thanks.

https://github.com/llvm/llvm-project/pull/173965