diff --git a/src/tint/lang/spirv/reader/parser/binary_test.cc b/src/tint/lang/spirv/reader/parser/binary_test.cc
index eefea4e..bf5d71a 100644
--- a/src/tint/lang/spirv/reader/parser/binary_test.cc
+++ b/src/tint/lang/spirv/reader/parser/binary_test.cc
@@ -50,8 +50,12 @@
                OpEntryPoint GLCompute %main "main"
                OpExecutionMode %main LocalSize 1 1 1
        %void = OpTypeVoid
+        %i32 = OpTypeInt 32 1
+        %u32 = OpTypeInt 32 0
         %f16 = OpTypeFloat 16
         %f32 = OpTypeFloat 32
+      %vec3i = OpTypeVector %i32 3
+      %vec4u = OpTypeVector %u32 4
       %vec3h = OpTypeVector %f16 3
       %vec4f = OpTypeVector %f32 4
     %ep_type = OpTypeFunction %void
@@ -128,6 +132,28 @@
                                  "vec4f",
                                  "OpFMul",
                                  "%5:vec4<f32> = mul %3, %4",
+                             },
+
+                             // OpIAdd
+                             BinaryCase{
+                                 "i32",
+                                 "OpIAdd",
+                                 "%5:i32 = add %3, %4",
+                             },
+                             BinaryCase{
+                                 "u32",
+                                 "OpIAdd",
+                                 "%5:u32 = add %3, %4",
+                             },
+                             BinaryCase{
+                                 "vec3i",
+                                 "OpIAdd",
+                                 "%5:vec3<i32> = add %3, %4",
+                             },
+                             BinaryCase{
+                                 "vec4u",
+                                 "OpIAdd",
+                                 "%5:vec4<u32> = add %3, %4",
                              }),
                          PrintBuiltinCase);
 
diff --git a/src/tint/lang/spirv/reader/parser/parser.cc b/src/tint/lang/spirv/reader/parser/parser.cc
index d6c4f60..8fadddf 100644
--- a/src/tint/lang/spirv/reader/parser/parser.cc
+++ b/src/tint/lang/spirv/reader/parser/parser.cc
@@ -523,6 +523,9 @@
                 case spv::Op::OpFunctionCall:
                     EmitFunctionCall(inst);
                     break;
+                case spv::Op::OpIAdd:
+                    EmitBinary(inst, core::BinaryOp::kAdd);
+                    break;
                 case spv::Op::OpLoad:
                     Emit(b_.Load(Value(inst.GetSingleWordOperand(2))), inst.result_id());
                     break;