1 files changed, 0 insertions, 51 deletions
diff --git a/llvm/include/llvm/CodeGen/GlobalISel/ConstantFoldingMIRBuilder.h b/llvm/include/llvm/CodeGen/GlobalISel/ConstantFoldingMIRBuilder.h
index 118c65ed396..220a571b21d 100644
--- a/llvm/include/llvm/CodeGen/GlobalISel/ConstantFoldingMIRBuilder.h
+++ b/llvm/include/llvm/CodeGen/GlobalISel/ConstantFoldingMIRBuilder.h
@@ -15,57 +15,6 @@
 
 namespace llvm {
 
-static Optional<APInt> ConstantFoldBinOp(unsigned Opcode, const unsigned Op1,
-                                         const unsigned Op2,
-                                         const MachineRegisterInfo &MRI) {
-  auto MaybeOp1Cst = getConstantVRegVal(Op1, MRI);
-  auto MaybeOp2Cst = getConstantVRegVal(Op2, MRI);
-  if (MaybeOp1Cst && MaybeOp2Cst) {
-    LLT Ty = MRI.getType(Op1);
-    APInt C1(Ty.getSizeInBits(), *MaybeOp1Cst, true);
-    APInt C2(Ty.getSizeInBits(), *MaybeOp2Cst, true);
-    switch (Opcode) {
-    default:
-      break;
-    case TargetOpcode::G_ADD:
-      return C1 + C2;
-    case TargetOpcode::G_AND:
-      return C1 & C2;
-    case TargetOpcode::G_ASHR:
-      return C1.ashr(C2);
-    case TargetOpcode::G_LSHR:
-      return C1.lshr(C2);
-    case TargetOpcode::G_MUL:
-      return C1 * C2;
-    case TargetOpcode::G_OR:
-      return C1 | C2;
-    case TargetOpcode::G_SHL:
-      return C1 << C2;
-    case TargetOpcode::G_SUB:
-      return C1 - C2;
-    case TargetOpcode::G_XOR:
-      return C1 ^ C2;
-    case TargetOpcode::G_UDIV:
-      if (!C2.getBoolValue())
-        break;
-      return C1.udiv(C2);
-    case TargetOpcode::G_SDIV:
-      if (!C2.getBoolValue())
-        break;
-      return C1.sdiv(C2);
-    case TargetOpcode::G_UREM:
-      if (!C2.getBoolValue())
-        break;
-      return C1.urem(C2);
-    case TargetOpcode::G_SREM:
-      if (!C2.getBoolValue())
-        break;
-      return C1.srem(C2);
-    }
-  }
-  return None;
-}
-
 /// An MIRBuilder which does trivial constant folding of binary ops.
 /// Calls to buildInstr will also try to constant fold binary ops.
 class ConstantFoldingMIRBuilder : public MachineIRBuilder {