[llvm] [X86][MC][CodeGen] Support EGPR for KMOV (PR #73781)

[Shengchen Kan via llvm-commits]

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@@ -466,10 +466,15 @@ bool X86ExpandPseudo::ExpandMI(MachineBasicBlock &MBB,
     Register Reg0 = TRI->getSubReg(Reg, X86::sub_mask_0);
     Register Reg1 = TRI->getSubReg(Reg, X86::sub_mask_1);
 
-    auto MIBLo = BuildMI(MBB, MBBI, DL, TII->get(X86::KMOVWkm))
-      .addReg(Reg0, RegState::Define | getDeadRegState(DstIsDead));
-    auto MIBHi = BuildMI(MBB, MBBI, DL, TII->get(X86::KMOVWkm))
-      .addReg(Reg1, RegState::Define | getDeadRegState(DstIsDead));
+    bool HasEGPR = STI->hasEGPR();
+    auto MIBLo =
+        BuildMI(MBB, MBBI, DL,
+                TII->get(HasEGPR ? X86::KMOVWkm_EVEX : X86::KMOVWkm))
+            .addReg(Reg0, RegState::Define | getDeadRegState(DstIsDead));
+    auto MIBHi =
+        BuildMI(MBB, MBBI, DL,
+                TII->get(HasEGPR ? X86::KMOVWkm_EVEX : X86::KMOVWkm))
+            .addReg(Reg1, RegState::Define | getDeadRegState(DstIsDead));
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KanRobert wrote:

Done

https://github.com/llvm/llvm-project/pull/73781