[llvm] [X86] Support APX CMOV/CFCMOV instructions (PR #82592)

[Shengchen Kan via llvm-commits]

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@@ -3147,8 +3148,9 @@ X86::CondCode X86::getCondFromSETCC(const MachineInstr &MI) {
 }
 
 X86::CondCode X86::getCondFromCMov(const MachineInstr &MI) {
-  return X86::isCMOVCC(MI.getOpcode()) ? X86::getCondFromMI(MI)
-                                       : X86::COND_INVALID;
+  return X86::isCMOVCC(MI.getOpcode()) || X86::isCFCMOVCC(MI.getOpcode())
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KanRobert wrote:

CFCMOV should not be added here b/c CMOV optimization is not always applicable to CFCMOV.

https://github.com/llvm/llvm-project/pull/82592