diff --git a/mlir/lib/Conversion/MathToLLVM/MathToLLVM.cpp b/mlir/lib/Conversion/MathToLLVM/MathToLLVM.cpp
--- a/mlir/lib/Conversion/MathToLLVM/MathToLLVM.cpp
+++ b/mlir/lib/Conversion/MathToLLVM/MathToLLVM.cpp
@@ -50,6 +50,8 @@
 using Log2OpLowering = ConvertFMFMathToLLVMPattern<math::Log2Op, LLVM::Log2Op>;
 using LogOpLowering = ConvertFMFMathToLLVMPattern<math::LogOp, LLVM::LogOp>;
 using PowFOpLowering = ConvertFMFMathToLLVMPattern<math::PowFOp, LLVM::PowOp>;
+using FPowIOpLowering =
+    ConvertFMFMathToLLVMPattern<math::FPowIOp, LLVM::PowIOp>;
 using RoundEvenOpLowering =
     ConvertFMFMathToLLVMPattern<math::RoundEvenOp, LLVM::RoundEvenOp>;
 using RoundOpLowering =
@@ -313,6 +315,7 @@
     Exp2OpLowering,
     ExpM1OpLowering,
     ExpOpLowering,
+    FPowIOpLowering,
     FloorOpLowering,
     FmaOpLowering,
     Log10OpLowering,
diff --git a/mlir/test/Conversion/MathToLLVM/math-to-llvm.mlir b/mlir/test/Conversion/MathToLLVM/math-to-llvm.mlir
--- a/mlir/test/Conversion/MathToLLVM/math-to-llvm.mlir
+++ b/mlir/test/Conversion/MathToLLVM/math-to-llvm.mlir
@@ -256,6 +256,17 @@
   func.return
 }
 
+// -----
+
+// CHECK-LABEL: func @fpowi(
+// CHECK-SAME: f64
+func.func @fpowi(%arg0 : f64, %arg1 : i32) {
+  // CHECK: llvm.intr.powi(%arg0, %arg1) : (f64, i32) -> f64
+  %0 = math.fpowi %arg0, %arg1 : f64, i32
+  func.return
+}
+
+
 // -----
 
 // CHECK-LABEL: func @powf(