diff --git a/mlir/lib/Conversion/SPIRVToLLVM/ConvertSPIRVToLLVM.cpp b/mlir/lib/Conversion/SPIRVToLLVM/ConvertSPIRVToLLVM.cpp
--- a/mlir/lib/Conversion/SPIRVToLLVM/ConvertSPIRVToLLVM.cpp
+++ b/mlir/lib/Conversion/SPIRVToLLVM/ConvertSPIRVToLLVM.cpp
@@ -576,6 +576,7 @@
       DirectConversionPattern<spirv::ISubOp, LLVM::SubOp>,
       DirectConversionPattern<spirv::FAddOp, LLVM::FAddOp>,
       DirectConversionPattern<spirv::FDivOp, LLVM::FDivOp>,
+      DirectConversionPattern<spirv::FMulOp, LLVM::FMulOp>,
       DirectConversionPattern<spirv::FNegateOp, LLVM::FNegOp>,
       DirectConversionPattern<spirv::FRemOp, LLVM::FRemOp>,
       DirectConversionPattern<spirv::FSubOp, LLVM::FSubOp>,
@@ -641,6 +642,10 @@
       IComparePattern<spirv::LogicalNotEqualOp, LLVM::ICmpPredicate::ne>,
       NotPattern<spirv::LogicalNotOp>,
 
+      // Miscellaneous ops
+      DirectConversionPattern<spirv::SelectOp, LLVM::SelectOp>,
+      DirectConversionPattern<spirv::UndefOp, LLVM::UndefOp>,
+
       // Shift ops
       ShiftPattern<spirv::ShiftRightArithmeticOp, LLVM::AShrOp>,
       ShiftPattern<spirv::ShiftRightLogicalOp, LLVM::LShrOp>,
diff --git a/mlir/test/Conversion/SPIRVToLLVM/arithmetic-ops-to-llvm.mlir b/mlir/test/Conversion/SPIRVToLLVM/arithmetic-ops-to-llvm.mlir
--- a/mlir/test/Conversion/SPIRVToLLVM/arithmetic-ops-to-llvm.mlir
+++ b/mlir/test/Conversion/SPIRVToLLVM/arithmetic-ops-to-llvm.mlir
@@ -96,6 +96,22 @@
 	return
 }
 
+//===----------------------------------------------------------------------===//
+// spv.FMul
+//===----------------------------------------------------------------------===//
+
+func @fmul_scalar(%arg0: f32, %arg1: f32) {
+	// CHECK: %{{.*}} = llvm.fmul %{{.*}}, %{{.*}} : !llvm.float
+	%0 = spv.FMul %arg0, %arg1 : f32
+	return
+}
+
+func @fmul_vector(%arg0: vector<2xf32>, %arg1: vector<2xf32>) {
+	// CHECK: %{{.*}} = llvm.fmul %{{.*}}, %{{.*}} : !llvm<"<2 x float>">
+	%0 = spv.FMul %arg0, %arg1 : vector<2xf32>
+	return
+}
+
 //===----------------------------------------------------------------------===//
 // spv.FRem
 //===----------------------------------------------------------------------===//
diff --git a/mlir/test/Conversion/SPIRVToLLVM/misc-ops-to-llvm.mlir b/mlir/test/Conversion/SPIRVToLLVM/misc-ops-to-llvm.mlir
new file mode 100644
--- /dev/null
+++ b/mlir/test/Conversion/SPIRVToLLVM/misc-ops-to-llvm.mlir
@@ -0,0 +1,35 @@
+// RUN: mlir-opt -convert-spirv-to-llvm %s | FileCheck %s
+
+//===----------------------------------------------------------------------===//
+// spv.Select
+//===----------------------------------------------------------------------===//
+
+func @select_scalar(%arg0: i1, %arg1: vector<3xi32>, %arg2: f32) {
+	// CHECK: %{{.*}} = llvm.select %{{.*}}, %{{.*}}, %{{.*}} : !llvm.i1, !llvm<"<3 x i32>">
+	%0 = spv.Select %arg0, %arg1, %arg1 : i1, vector<3xi32>
+	// CHECK: %{{.*}} = llvm.select %{{.*}}, %{{.*}}, %{{.*}} : !llvm.i1, !llvm.float
+	%1 = spv.Select %arg0, %arg2, %arg2 : i1, f32
+  return
+}
+
+func @select_vector(%arg0: vector<2xi1>, %arg1: vector<2xi32>) {
+	// CHECK: %{{.*}} = llvm.select %{{.*}}, %{{.*}}, %{{.*}} : !llvm<"<2 x i1>">, !llvm<"<2 x i32>">
+	%0 = spv.Select %arg0, %arg1, %arg1 : vector<2xi1>, vector<2xi32>
+  return
+}
+
+//===----------------------------------------------------------------------===//
+// spv.Undef
+//===----------------------------------------------------------------------===//
+
+func @undef_scalar() {
+	// CHECK: %{{.*}} = llvm.mlir.undef : !llvm.float
+	%0 = spv.undef : f32
+	return
+}
+
+func @undef_vector() {
+	// CHECK: %{{.*}} = llvm.mlir.undef : !llvm<"<2 x i32>">
+	%0 = spv.undef : vector<2xi32>
+	return
+}