[clang] [llvm] [X86][AMX] Support AMX-TF32 (PR #115625)

[Phoebe Wang via cfe-commits]

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@@ -37686,6 +37686,28 @@ X86TargetLowering::EmitInstrWithCustomInserter(MachineInstr &MI,
     MI.eraseFromParent(); // The pseudo is gone now.
     return BB;
   }
+  case X86::PTMMULTF32PS:
+  case X86::PTTMMULTF32PS: {
+    const DebugLoc &DL = MI.getDebugLoc();
+    unsigned Opc;
+    switch (MI.getOpcode()) {
+    default:
+      llvm_unreachable("Unexpected instruction!");
+    case X86::PTMMULTF32PS:
+      Opc = X86::TMMULTF32PS;
+      break;
+    case X86::PTTMMULTF32PS:
+      Opc = X86::TTMMULTF32PS;
+      break;
+    }
+    MachineInstrBuilder MIB = BuildMI(*BB, MI, DL, TII->get(Opc));
+    MIB.addReg(TMMImmToTMMReg(MI.getOperand(0).getImm()), RegState::Define);
+    MIB.addReg(TMMImmToTMMReg(MI.getOperand(0).getImm()), RegState::Undef);
+    MIB.addReg(TMMImmToTMMReg(MI.getOperand(1).getImm()), RegState::Undef);
+    MIB.addReg(TMMImmToTMMReg(MI.getOperand(2).getImm()), RegState::Undef);
+    MI.eraseFromParent();
+    return BB;
+  }
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phoebewang wrote:

Merge to line 37473

https://github.com/llvm/llvm-project/pull/115625