diff --git a/cl/_testgo/ifaceconv/out.ll b/cl/_testgo/ifaceconv/out.ll
index a472776b..f65a294c 100644
--- a/cl/_testgo/ifaceconv/out.ll
+++ b/cl/_testgo/ifaceconv/out.ll
@@ -408,7 +408,7 @@ _llgo_18:                                         ; preds = %_llgo_49
   %163 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %161, i32 0, i32 1
   store ptr %160, ptr %163, align 8
   %164 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %161, align 8
-  %165 = call i1 @"github.com/goplus/llgo/internal/runtime.InterfaceEqual"(%"github.com/goplus/llgo/internal/runtime.eface" %164, %"github.com/goplus/llgo/internal/runtime.eface" zeroinitializer, i1 true, i1 true)
+  %165 = call i1 @"github.com/goplus/llgo/internal/runtime.EfaceEqual"(%"github.com/goplus/llgo/internal/runtime.eface" %164, %"github.com/goplus/llgo/internal/runtime.eface" zeroinitializer)
   br i1 %165, label %_llgo_19, label %_llgo_20
 
 _llgo_19:                                         ; preds = %_llgo_18
@@ -431,326 +431,341 @@ _llgo_19:                                         ; preds = %_llgo_18
   unreachable
 
 _llgo_20:                                         ; preds = %_llgo_18
-  %176 = call i1 @"github.com/goplus/llgo/internal/runtime.InterfaceEqual"(%"github.com/goplus/llgo/internal/runtime.iface" %158, %"github.com/goplus/llgo/internal/runtime.iface" zeroinitializer, i1 false, i1 false)
-  br i1 %176, label %_llgo_21, label %_llgo_22
-
-_llgo_21:                                         ; preds = %_llgo_20
-  %177 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
-  %178 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %177, i32 0, i32 0
-  store ptr @37, ptr %178, align 8
-  %179 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %177, i32 0, i32 1
-  store i64 17, ptr %179, align 4
-  %180 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %177, align 8
-  %181 = load ptr, ptr @_llgo_string, align 8
-  %182 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 16)
-  store %"github.com/goplus/llgo/internal/runtime.String" %180, ptr %182, align 8
+  %176 = call ptr @"github.com/goplus/llgo/internal/runtime.IfaceType"(%"github.com/goplus/llgo/internal/runtime.iface" %158)
+  %177 = extractvalue %"github.com/goplus/llgo/internal/runtime.iface" %158, 1
+  %178 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %179 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %178, i32 0, i32 0
+  store ptr %176, ptr %179, align 8
+  %180 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %178, i32 0, i32 1
+  store ptr %177, ptr %180, align 8
+  %181 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %178, align 8
+  %182 = call ptr @"github.com/goplus/llgo/internal/runtime.IfaceType"(%"github.com/goplus/llgo/internal/runtime.iface" zeroinitializer)
   %183 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
   %184 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %183, i32 0, i32 0
-  store ptr %181, ptr %184, align 8
+  store ptr %182, ptr %184, align 8
   %185 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %183, i32 0, i32 1
-  store ptr %182, ptr %185, align 8
+  store ptr null, ptr %185, align 8
   %186 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %183, align 8
-  call void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.eface" %186)
+  %187 = call i1 @"github.com/goplus/llgo/internal/runtime.EfaceEqual"(%"github.com/goplus/llgo/internal/runtime.eface" %181, %"github.com/goplus/llgo/internal/runtime.eface" %186)
+  br i1 %187, label %_llgo_21, label %_llgo_22
+
+_llgo_21:                                         ; preds = %_llgo_20
+  %188 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %189 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %188, i32 0, i32 0
+  store ptr @37, ptr %189, align 8
+  %190 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %188, i32 0, i32 1
+  store i64 17, ptr %190, align 4
+  %191 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %188, align 8
+  %192 = load ptr, ptr @_llgo_string, align 8
+  %193 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 16)
+  store %"github.com/goplus/llgo/internal/runtime.String" %191, ptr %193, align 8
+  %194 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %195 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %194, i32 0, i32 0
+  store ptr %192, ptr %195, align 8
+  %196 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %194, i32 0, i32 1
+  store ptr %193, ptr %196, align 8
+  %197 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %194, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.eface" %197)
   unreachable
 
 _llgo_22:                                         ; preds = %_llgo_20
-  %187 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
-  %188 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %187, i32 0, i32 0
-  store ptr @38, ptr %188, align 8
-  %189 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %187, i32 0, i32 1
-  store i64 4, ptr %189, align 4
-  %190 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %187, align 8
-  call void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String" %190)
+  %198 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %199 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %198, i32 0, i32 0
+  store ptr @38, ptr %199, align 8
+  %200 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %198, i32 0, i32 1
+  store i64 4, ptr %200, align 4
+  %201 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %198, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String" %201)
   call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
   ret i32 0
 
 _llgo_23:                                         ; preds = %_llgo_0
-  %191 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
-  %192 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %191, i32 0, i32 0
-  store ptr null, ptr %192, align 8
-  %193 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %191, i32 0, i32 1
-  store ptr null, ptr %193, align 8
-  %194 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %191, align 8
-  %195 = alloca { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, align 8
-  %196 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, ptr %195, i32 0, i32 0
-  store %"github.com/goplus/llgo/internal/runtime.eface" %194, ptr %196, align 8
-  %197 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, ptr %195, i32 0, i32 1
-  store i1 true, ptr %197, align 1
-  %198 = load { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, ptr %195, align 8
+  %202 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %203 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %202, i32 0, i32 0
+  store ptr null, ptr %203, align 8
+  %204 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %202, i32 0, i32 1
+  store ptr null, ptr %204, align 8
+  %205 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %202, align 8
+  %206 = alloca { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, align 8
+  %207 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, ptr %206, i32 0, i32 0
+  store %"github.com/goplus/llgo/internal/runtime.eface" %205, ptr %207, align 8
+  %208 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, ptr %206, i32 0, i32 1
+  store i1 true, ptr %208, align 1
+  %209 = load { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, ptr %206, align 8
   br label %_llgo_25
 
 _llgo_24:                                         ; preds = %_llgo_0
-  %199 = alloca { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, align 8
-  %200 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, ptr %199, i32 0, i32 0
-  store { ptr, ptr } zeroinitializer, ptr %200, align 8
-  %201 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, ptr %199, i32 0, i32 1
-  store i1 false, ptr %201, align 1
-  %202 = load { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, ptr %199, align 8
+  %210 = alloca { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, align 8
+  %211 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, ptr %210, i32 0, i32 0
+  store { ptr, ptr } zeroinitializer, ptr %211, align 8
+  %212 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, ptr %210, i32 0, i32 1
+  store i1 false, ptr %212, align 1
+  %213 = load { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, ptr %210, align 8
   br label %_llgo_25
 
 _llgo_25:                                         ; preds = %_llgo_24, %_llgo_23
-  %203 = phi { %"github.com/goplus/llgo/internal/runtime.eface", i1 } [ %198, %_llgo_23 ], [ %202, %_llgo_24 ]
-  %204 = extractvalue { %"github.com/goplus/llgo/internal/runtime.eface", i1 } %203, 0
-  %205 = extractvalue { %"github.com/goplus/llgo/internal/runtime.eface", i1 } %203, 1
-  br i1 %205, label %_llgo_1, label %_llgo_2
+  %214 = phi { %"github.com/goplus/llgo/internal/runtime.eface", i1 } [ %209, %_llgo_23 ], [ %213, %_llgo_24 ]
+  %215 = extractvalue { %"github.com/goplus/llgo/internal/runtime.eface", i1 } %214, 0
+  %216 = extractvalue { %"github.com/goplus/llgo/internal/runtime.eface", i1 } %214, 1
+  br i1 %216, label %_llgo_1, label %_llgo_2
 
 _llgo_26:                                         ; preds = %_llgo_2
-  %206 = load ptr, ptr @"main.iface$brpgdLtIeRlPi8QUoTgPCXzlehUkncg7v9aITo-GsF4", align 8
-  %207 = call ptr @"github.com/goplus/llgo/internal/runtime.NewItab"(ptr %206, ptr %14)
-  %208 = alloca %"github.com/goplus/llgo/internal/runtime.iface", align 8
-  %209 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %208, i32 0, i32 0
-  store ptr %207, ptr %209, align 8
-  %210 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %208, i32 0, i32 1
-  store ptr null, ptr %210, align 8
-  %211 = load %"github.com/goplus/llgo/internal/runtime.iface", ptr %208, align 8
-  %212 = alloca { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, align 8
-  %213 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %212, i32 0, i32 0
-  store %"github.com/goplus/llgo/internal/runtime.iface" %211, ptr %213, align 8
-  %214 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %212, i32 0, i32 1
-  store i1 true, ptr %214, align 1
-  %215 = load { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %212, align 8
+  %217 = load ptr, ptr @"main.iface$brpgdLtIeRlPi8QUoTgPCXzlehUkncg7v9aITo-GsF4", align 8
+  %218 = call ptr @"github.com/goplus/llgo/internal/runtime.NewItab"(ptr %217, ptr %14)
+  %219 = alloca %"github.com/goplus/llgo/internal/runtime.iface", align 8
+  %220 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %219, i32 0, i32 0
+  store ptr %218, ptr %220, align 8
+  %221 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %219, i32 0, i32 1
+  store ptr null, ptr %221, align 8
+  %222 = load %"github.com/goplus/llgo/internal/runtime.iface", ptr %219, align 8
+  %223 = alloca { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, align 8
+  %224 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %223, i32 0, i32 0
+  store %"github.com/goplus/llgo/internal/runtime.iface" %222, ptr %224, align 8
+  %225 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %223, i32 0, i32 1
+  store i1 true, ptr %225, align 1
+  %226 = load { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %223, align 8
   br label %_llgo_28
 
 _llgo_27:                                         ; preds = %_llgo_2
-  %216 = alloca { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, align 8
-  %217 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %216, i32 0, i32 0
-  store { ptr, ptr } zeroinitializer, ptr %217, align 8
-  %218 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %216, i32 0, i32 1
-  store i1 false, ptr %218, align 1
-  %219 = load { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %216, align 8
+  %227 = alloca { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, align 8
+  %228 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %227, i32 0, i32 0
+  store { ptr, ptr } zeroinitializer, ptr %228, align 8
+  %229 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %227, i32 0, i32 1
+  store i1 false, ptr %229, align 1
+  %230 = load { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %227, align 8
   br label %_llgo_28
 
 _llgo_28:                                         ; preds = %_llgo_27, %_llgo_26
-  %220 = phi { %"github.com/goplus/llgo/internal/runtime.iface", i1 } [ %215, %_llgo_26 ], [ %219, %_llgo_27 ]
-  %221 = extractvalue { %"github.com/goplus/llgo/internal/runtime.iface", i1 } %220, 0
-  %222 = extractvalue { %"github.com/goplus/llgo/internal/runtime.iface", i1 } %220, 1
-  br i1 %222, label %_llgo_3, label %_llgo_4
+  %231 = phi { %"github.com/goplus/llgo/internal/runtime.iface", i1 } [ %226, %_llgo_26 ], [ %230, %_llgo_27 ]
+  %232 = extractvalue { %"github.com/goplus/llgo/internal/runtime.iface", i1 } %231, 0
+  %233 = extractvalue { %"github.com/goplus/llgo/internal/runtime.iface", i1 } %231, 1
+  br i1 %233, label %_llgo_3, label %_llgo_4
 
 _llgo_29:                                         ; preds = %_llgo_4
-  %223 = load ptr, ptr @"main.iface$gZBF8fFlqIMZ9M6lT2VWPyc3eu5Co6j0WoKGIEgDPAw", align 8
-  %224 = call ptr @"github.com/goplus/llgo/internal/runtime.NewItab"(ptr %223, ptr %27)
-  %225 = alloca %"github.com/goplus/llgo/internal/runtime.iface", align 8
-  %226 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %225, i32 0, i32 0
-  store ptr %224, ptr %226, align 8
-  %227 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %225, i32 0, i32 1
-  store ptr null, ptr %227, align 8
-  %228 = load %"github.com/goplus/llgo/internal/runtime.iface", ptr %225, align 8
-  %229 = alloca { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, align 8
-  %230 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %229, i32 0, i32 0
-  store %"github.com/goplus/llgo/internal/runtime.iface" %228, ptr %230, align 8
-  %231 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %229, i32 0, i32 1
-  store i1 true, ptr %231, align 1
-  %232 = load { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %229, align 8
+  %234 = load ptr, ptr @"main.iface$gZBF8fFlqIMZ9M6lT2VWPyc3eu5Co6j0WoKGIEgDPAw", align 8
+  %235 = call ptr @"github.com/goplus/llgo/internal/runtime.NewItab"(ptr %234, ptr %27)
+  %236 = alloca %"github.com/goplus/llgo/internal/runtime.iface", align 8
+  %237 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %236, i32 0, i32 0
+  store ptr %235, ptr %237, align 8
+  %238 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %236, i32 0, i32 1
+  store ptr null, ptr %238, align 8
+  %239 = load %"github.com/goplus/llgo/internal/runtime.iface", ptr %236, align 8
+  %240 = alloca { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, align 8
+  %241 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %240, i32 0, i32 0
+  store %"github.com/goplus/llgo/internal/runtime.iface" %239, ptr %241, align 8
+  %242 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %240, i32 0, i32 1
+  store i1 true, ptr %242, align 1
+  %243 = load { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %240, align 8
   br label %_llgo_31
 
 _llgo_30:                                         ; preds = %_llgo_4
-  %233 = alloca { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, align 8
-  %234 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %233, i32 0, i32 0
-  store { ptr, ptr } zeroinitializer, ptr %234, align 8
-  %235 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %233, i32 0, i32 1
-  store i1 false, ptr %235, align 1
-  %236 = load { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %233, align 8
+  %244 = alloca { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, align 8
+  %245 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %244, i32 0, i32 0
+  store { ptr, ptr } zeroinitializer, ptr %245, align 8
+  %246 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %244, i32 0, i32 1
+  store i1 false, ptr %246, align 1
+  %247 = load { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %244, align 8
   br label %_llgo_31
 
 _llgo_31:                                         ; preds = %_llgo_30, %_llgo_29
-  %237 = phi { %"github.com/goplus/llgo/internal/runtime.iface", i1 } [ %232, %_llgo_29 ], [ %236, %_llgo_30 ]
-  %238 = extractvalue { %"github.com/goplus/llgo/internal/runtime.iface", i1 } %237, 0
-  %239 = extractvalue { %"github.com/goplus/llgo/internal/runtime.iface", i1 } %237, 1
-  br i1 %239, label %_llgo_5, label %_llgo_6
+  %248 = phi { %"github.com/goplus/llgo/internal/runtime.iface", i1 } [ %243, %_llgo_29 ], [ %247, %_llgo_30 ]
+  %249 = extractvalue { %"github.com/goplus/llgo/internal/runtime.iface", i1 } %248, 0
+  %250 = extractvalue { %"github.com/goplus/llgo/internal/runtime.iface", i1 } %248, 1
+  br i1 %250, label %_llgo_5, label %_llgo_6
 
 _llgo_32:                                         ; preds = %_llgo_6
-  %240 = extractvalue %"github.com/goplus/llgo/internal/runtime.iface" %64, 1
-  %241 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
-  %242 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %241, i32 0, i32 0
-  store ptr %65, ptr %242, align 8
-  %243 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %241, i32 0, i32 1
-  store ptr %240, ptr %243, align 8
-  %244 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %241, align 8
-  %245 = alloca { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, align 8
-  %246 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, ptr %245, i32 0, i32 0
-  store %"github.com/goplus/llgo/internal/runtime.eface" %244, ptr %246, align 8
-  %247 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, ptr %245, i32 0, i32 1
-  store i1 true, ptr %247, align 1
-  %248 = load { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, ptr %245, align 8
+  %251 = extractvalue %"github.com/goplus/llgo/internal/runtime.iface" %64, 1
+  %252 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %253 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %252, i32 0, i32 0
+  store ptr %65, ptr %253, align 8
+  %254 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %252, i32 0, i32 1
+  store ptr %251, ptr %254, align 8
+  %255 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %252, align 8
+  %256 = alloca { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, align 8
+  %257 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, ptr %256, i32 0, i32 0
+  store %"github.com/goplus/llgo/internal/runtime.eface" %255, ptr %257, align 8
+  %258 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, ptr %256, i32 0, i32 1
+  store i1 true, ptr %258, align 1
+  %259 = load { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, ptr %256, align 8
   br label %_llgo_34
 
 _llgo_33:                                         ; preds = %_llgo_6
-  %249 = alloca { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, align 8
-  %250 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, ptr %249, i32 0, i32 0
-  store { ptr, ptr } zeroinitializer, ptr %250, align 8
-  %251 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, ptr %249, i32 0, i32 1
-  store i1 false, ptr %251, align 1
-  %252 = load { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, ptr %249, align 8
+  %260 = alloca { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, align 8
+  %261 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, ptr %260, i32 0, i32 0
+  store { ptr, ptr } zeroinitializer, ptr %261, align 8
+  %262 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, ptr %260, i32 0, i32 1
+  store i1 false, ptr %262, align 1
+  %263 = load { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, ptr %260, align 8
   br label %_llgo_34
 
 _llgo_34:                                         ; preds = %_llgo_33, %_llgo_32
-  %253 = phi { %"github.com/goplus/llgo/internal/runtime.eface", i1 } [ %248, %_llgo_32 ], [ %252, %_llgo_33 ]
-  %254 = extractvalue { %"github.com/goplus/llgo/internal/runtime.eface", i1 } %253, 0
-  %255 = extractvalue { %"github.com/goplus/llgo/internal/runtime.eface", i1 } %253, 1
-  br i1 %255, label %_llgo_8, label %_llgo_7
+  %264 = phi { %"github.com/goplus/llgo/internal/runtime.eface", i1 } [ %259, %_llgo_32 ], [ %263, %_llgo_33 ]
+  %265 = extractvalue { %"github.com/goplus/llgo/internal/runtime.eface", i1 } %264, 0
+  %266 = extractvalue { %"github.com/goplus/llgo/internal/runtime.eface", i1 } %264, 1
+  br i1 %266, label %_llgo_8, label %_llgo_7
 
 _llgo_35:                                         ; preds = %_llgo_8
-  %256 = extractvalue %"github.com/goplus/llgo/internal/runtime.iface" %64, 1
-  %257 = load ptr, ptr @"main.iface$brpgdLtIeRlPi8QUoTgPCXzlehUkncg7v9aITo-GsF4", align 8
-  %258 = call ptr @"github.com/goplus/llgo/internal/runtime.NewItab"(ptr %257, ptr %78)
-  %259 = alloca %"github.com/goplus/llgo/internal/runtime.iface", align 8
-  %260 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %259, i32 0, i32 0
-  store ptr %258, ptr %260, align 8
-  %261 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %259, i32 0, i32 1
-  store ptr %256, ptr %261, align 8
-  %262 = load %"github.com/goplus/llgo/internal/runtime.iface", ptr %259, align 8
-  %263 = alloca { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, align 8
-  %264 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %263, i32 0, i32 0
-  store %"github.com/goplus/llgo/internal/runtime.iface" %262, ptr %264, align 8
-  %265 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %263, i32 0, i32 1
-  store i1 true, ptr %265, align 1
-  %266 = load { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %263, align 8
+  %267 = extractvalue %"github.com/goplus/llgo/internal/runtime.iface" %64, 1
+  %268 = load ptr, ptr @"main.iface$brpgdLtIeRlPi8QUoTgPCXzlehUkncg7v9aITo-GsF4", align 8
+  %269 = call ptr @"github.com/goplus/llgo/internal/runtime.NewItab"(ptr %268, ptr %78)
+  %270 = alloca %"github.com/goplus/llgo/internal/runtime.iface", align 8
+  %271 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %270, i32 0, i32 0
+  store ptr %269, ptr %271, align 8
+  %272 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %270, i32 0, i32 1
+  store ptr %267, ptr %272, align 8
+  %273 = load %"github.com/goplus/llgo/internal/runtime.iface", ptr %270, align 8
+  %274 = alloca { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, align 8
+  %275 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %274, i32 0, i32 0
+  store %"github.com/goplus/llgo/internal/runtime.iface" %273, ptr %275, align 8
+  %276 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %274, i32 0, i32 1
+  store i1 true, ptr %276, align 1
+  %277 = load { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %274, align 8
   br label %_llgo_37
 
 _llgo_36:                                         ; preds = %_llgo_8
-  %267 = alloca { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, align 8
-  %268 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %267, i32 0, i32 0
-  store { ptr, ptr } zeroinitializer, ptr %268, align 8
-  %269 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %267, i32 0, i32 1
-  store i1 false, ptr %269, align 1
-  %270 = load { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %267, align 8
+  %278 = alloca { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, align 8
+  %279 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %278, i32 0, i32 0
+  store { ptr, ptr } zeroinitializer, ptr %279, align 8
+  %280 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %278, i32 0, i32 1
+  store i1 false, ptr %280, align 1
+  %281 = load { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %278, align 8
   br label %_llgo_37
 
 _llgo_37:                                         ; preds = %_llgo_36, %_llgo_35
-  %271 = phi { %"github.com/goplus/llgo/internal/runtime.iface", i1 } [ %266, %_llgo_35 ], [ %270, %_llgo_36 ]
-  %272 = extractvalue { %"github.com/goplus/llgo/internal/runtime.iface", i1 } %271, 0
-  %273 = extractvalue { %"github.com/goplus/llgo/internal/runtime.iface", i1 } %271, 1
-  br i1 %273, label %_llgo_10, label %_llgo_9
+  %282 = phi { %"github.com/goplus/llgo/internal/runtime.iface", i1 } [ %277, %_llgo_35 ], [ %281, %_llgo_36 ]
+  %283 = extractvalue { %"github.com/goplus/llgo/internal/runtime.iface", i1 } %282, 0
+  %284 = extractvalue { %"github.com/goplus/llgo/internal/runtime.iface", i1 } %282, 1
+  br i1 %284, label %_llgo_10, label %_llgo_9
 
 _llgo_38:                                         ; preds = %_llgo_10
-  %274 = extractvalue %"github.com/goplus/llgo/internal/runtime.iface" %64, 1
-  %275 = load ptr, ptr @"main.iface$gZBF8fFlqIMZ9M6lT2VWPyc3eu5Co6j0WoKGIEgDPAw", align 8
-  %276 = call ptr @"github.com/goplus/llgo/internal/runtime.NewItab"(ptr %275, ptr %91)
-  %277 = alloca %"github.com/goplus/llgo/internal/runtime.iface", align 8
-  %278 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %277, i32 0, i32 0
-  store ptr %276, ptr %278, align 8
-  %279 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %277, i32 0, i32 1
-  store ptr %274, ptr %279, align 8
-  %280 = load %"github.com/goplus/llgo/internal/runtime.iface", ptr %277, align 8
-  %281 = alloca { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, align 8
-  %282 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %281, i32 0, i32 0
-  store %"github.com/goplus/llgo/internal/runtime.iface" %280, ptr %282, align 8
-  %283 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %281, i32 0, i32 1
-  store i1 true, ptr %283, align 1
-  %284 = load { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %281, align 8
+  %285 = extractvalue %"github.com/goplus/llgo/internal/runtime.iface" %64, 1
+  %286 = load ptr, ptr @"main.iface$gZBF8fFlqIMZ9M6lT2VWPyc3eu5Co6j0WoKGIEgDPAw", align 8
+  %287 = call ptr @"github.com/goplus/llgo/internal/runtime.NewItab"(ptr %286, ptr %91)
+  %288 = alloca %"github.com/goplus/llgo/internal/runtime.iface", align 8
+  %289 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %288, i32 0, i32 0
+  store ptr %287, ptr %289, align 8
+  %290 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %288, i32 0, i32 1
+  store ptr %285, ptr %290, align 8
+  %291 = load %"github.com/goplus/llgo/internal/runtime.iface", ptr %288, align 8
+  %292 = alloca { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, align 8
+  %293 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %292, i32 0, i32 0
+  store %"github.com/goplus/llgo/internal/runtime.iface" %291, ptr %293, align 8
+  %294 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %292, i32 0, i32 1
+  store i1 true, ptr %294, align 1
+  %295 = load { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %292, align 8
   br label %_llgo_40
 
 _llgo_39:                                         ; preds = %_llgo_10
-  %285 = alloca { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, align 8
-  %286 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %285, i32 0, i32 0
-  store { ptr, ptr } zeroinitializer, ptr %286, align 8
-  %287 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %285, i32 0, i32 1
-  store i1 false, ptr %287, align 1
-  %288 = load { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %285, align 8
+  %296 = alloca { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, align 8
+  %297 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %296, i32 0, i32 0
+  store { ptr, ptr } zeroinitializer, ptr %297, align 8
+  %298 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %296, i32 0, i32 1
+  store i1 false, ptr %298, align 1
+  %299 = load { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %296, align 8
   br label %_llgo_40
 
 _llgo_40:                                         ; preds = %_llgo_39, %_llgo_38
-  %289 = phi { %"github.com/goplus/llgo/internal/runtime.iface", i1 } [ %284, %_llgo_38 ], [ %288, %_llgo_39 ]
-  %290 = extractvalue { %"github.com/goplus/llgo/internal/runtime.iface", i1 } %289, 0
-  %291 = extractvalue { %"github.com/goplus/llgo/internal/runtime.iface", i1 } %289, 1
-  br i1 %291, label %_llgo_11, label %_llgo_12
+  %300 = phi { %"github.com/goplus/llgo/internal/runtime.iface", i1 } [ %295, %_llgo_38 ], [ %299, %_llgo_39 ]
+  %301 = extractvalue { %"github.com/goplus/llgo/internal/runtime.iface", i1 } %300, 0
+  %302 = extractvalue { %"github.com/goplus/llgo/internal/runtime.iface", i1 } %300, 1
+  br i1 %302, label %_llgo_11, label %_llgo_12
 
 _llgo_41:                                         ; preds = %_llgo_12
-  %292 = extractvalue %"github.com/goplus/llgo/internal/runtime.iface" %111, 1
-  %293 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
-  %294 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %293, i32 0, i32 0
-  store ptr %112, ptr %294, align 8
-  %295 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %293, i32 0, i32 1
-  store ptr %292, ptr %295, align 8
-  %296 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %293, align 8
-  %297 = alloca { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, align 8
-  %298 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, ptr %297, i32 0, i32 0
-  store %"github.com/goplus/llgo/internal/runtime.eface" %296, ptr %298, align 8
-  %299 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, ptr %297, i32 0, i32 1
-  store i1 true, ptr %299, align 1
-  %300 = load { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, ptr %297, align 8
+  %303 = extractvalue %"github.com/goplus/llgo/internal/runtime.iface" %111, 1
+  %304 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %305 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %304, i32 0, i32 0
+  store ptr %112, ptr %305, align 8
+  %306 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %304, i32 0, i32 1
+  store ptr %303, ptr %306, align 8
+  %307 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %304, align 8
+  %308 = alloca { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, align 8
+  %309 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, ptr %308, i32 0, i32 0
+  store %"github.com/goplus/llgo/internal/runtime.eface" %307, ptr %309, align 8
+  %310 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, ptr %308, i32 0, i32 1
+  store i1 true, ptr %310, align 1
+  %311 = load { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, ptr %308, align 8
   br label %_llgo_43
 
 _llgo_42:                                         ; preds = %_llgo_12
-  %301 = alloca { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, align 8
-  %302 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, ptr %301, i32 0, i32 0
-  store { ptr, ptr } zeroinitializer, ptr %302, align 8
-  %303 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, ptr %301, i32 0, i32 1
-  store i1 false, ptr %303, align 1
-  %304 = load { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, ptr %301, align 8
+  %312 = alloca { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, align 8
+  %313 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, ptr %312, i32 0, i32 0
+  store { ptr, ptr } zeroinitializer, ptr %313, align 8
+  %314 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, ptr %312, i32 0, i32 1
+  store i1 false, ptr %314, align 1
+  %315 = load { %"github.com/goplus/llgo/internal/runtime.eface", i1 }, ptr %312, align 8
   br label %_llgo_43
 
 _llgo_43:                                         ; preds = %_llgo_42, %_llgo_41
-  %305 = phi { %"github.com/goplus/llgo/internal/runtime.eface", i1 } [ %300, %_llgo_41 ], [ %304, %_llgo_42 ]
-  %306 = extractvalue { %"github.com/goplus/llgo/internal/runtime.eface", i1 } %305, 0
-  %307 = extractvalue { %"github.com/goplus/llgo/internal/runtime.eface", i1 } %305, 1
-  br i1 %307, label %_llgo_14, label %_llgo_13
+  %316 = phi { %"github.com/goplus/llgo/internal/runtime.eface", i1 } [ %311, %_llgo_41 ], [ %315, %_llgo_42 ]
+  %317 = extractvalue { %"github.com/goplus/llgo/internal/runtime.eface", i1 } %316, 0
+  %318 = extractvalue { %"github.com/goplus/llgo/internal/runtime.eface", i1 } %316, 1
+  br i1 %318, label %_llgo_14, label %_llgo_13
 
 _llgo_44:                                         ; preds = %_llgo_14
-  %308 = extractvalue %"github.com/goplus/llgo/internal/runtime.iface" %111, 1
-  %309 = load ptr, ptr @"main.iface$brpgdLtIeRlPi8QUoTgPCXzlehUkncg7v9aITo-GsF4", align 8
-  %310 = call ptr @"github.com/goplus/llgo/internal/runtime.NewItab"(ptr %309, ptr %125)
-  %311 = alloca %"github.com/goplus/llgo/internal/runtime.iface", align 8
-  %312 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %311, i32 0, i32 0
-  store ptr %310, ptr %312, align 8
-  %313 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %311, i32 0, i32 1
-  store ptr %308, ptr %313, align 8
-  %314 = load %"github.com/goplus/llgo/internal/runtime.iface", ptr %311, align 8
-  %315 = alloca { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, align 8
-  %316 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %315, i32 0, i32 0
-  store %"github.com/goplus/llgo/internal/runtime.iface" %314, ptr %316, align 8
-  %317 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %315, i32 0, i32 1
-  store i1 true, ptr %317, align 1
-  %318 = load { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %315, align 8
+  %319 = extractvalue %"github.com/goplus/llgo/internal/runtime.iface" %111, 1
+  %320 = load ptr, ptr @"main.iface$brpgdLtIeRlPi8QUoTgPCXzlehUkncg7v9aITo-GsF4", align 8
+  %321 = call ptr @"github.com/goplus/llgo/internal/runtime.NewItab"(ptr %320, ptr %125)
+  %322 = alloca %"github.com/goplus/llgo/internal/runtime.iface", align 8
+  %323 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %322, i32 0, i32 0
+  store ptr %321, ptr %323, align 8
+  %324 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %322, i32 0, i32 1
+  store ptr %319, ptr %324, align 8
+  %325 = load %"github.com/goplus/llgo/internal/runtime.iface", ptr %322, align 8
+  %326 = alloca { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, align 8
+  %327 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %326, i32 0, i32 0
+  store %"github.com/goplus/llgo/internal/runtime.iface" %325, ptr %327, align 8
+  %328 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %326, i32 0, i32 1
+  store i1 true, ptr %328, align 1
+  %329 = load { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %326, align 8
   br label %_llgo_46
 
 _llgo_45:                                         ; preds = %_llgo_14
-  %319 = alloca { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, align 8
-  %320 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %319, i32 0, i32 0
-  store { ptr, ptr } zeroinitializer, ptr %320, align 8
-  %321 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %319, i32 0, i32 1
-  store i1 false, ptr %321, align 1
-  %322 = load { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %319, align 8
+  %330 = alloca { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, align 8
+  %331 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %330, i32 0, i32 0
+  store { ptr, ptr } zeroinitializer, ptr %331, align 8
+  %332 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %330, i32 0, i32 1
+  store i1 false, ptr %332, align 1
+  %333 = load { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %330, align 8
   br label %_llgo_46
 
 _llgo_46:                                         ; preds = %_llgo_45, %_llgo_44
-  %323 = phi { %"github.com/goplus/llgo/internal/runtime.iface", i1 } [ %318, %_llgo_44 ], [ %322, %_llgo_45 ]
-  %324 = extractvalue { %"github.com/goplus/llgo/internal/runtime.iface", i1 } %323, 0
-  %325 = extractvalue { %"github.com/goplus/llgo/internal/runtime.iface", i1 } %323, 1
-  br i1 %325, label %_llgo_16, label %_llgo_15
+  %334 = phi { %"github.com/goplus/llgo/internal/runtime.iface", i1 } [ %329, %_llgo_44 ], [ %333, %_llgo_45 ]
+  %335 = extractvalue { %"github.com/goplus/llgo/internal/runtime.iface", i1 } %334, 0
+  %336 = extractvalue { %"github.com/goplus/llgo/internal/runtime.iface", i1 } %334, 1
+  br i1 %336, label %_llgo_16, label %_llgo_15
 
 _llgo_47:                                         ; preds = %_llgo_16
-  %326 = extractvalue %"github.com/goplus/llgo/internal/runtime.iface" %111, 1
-  %327 = load ptr, ptr @"main.iface$gZBF8fFlqIMZ9M6lT2VWPyc3eu5Co6j0WoKGIEgDPAw", align 8
-  %328 = call ptr @"github.com/goplus/llgo/internal/runtime.NewItab"(ptr %327, ptr %138)
-  %329 = alloca %"github.com/goplus/llgo/internal/runtime.iface", align 8
-  %330 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %329, i32 0, i32 0
-  store ptr %328, ptr %330, align 8
-  %331 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %329, i32 0, i32 1
-  store ptr %326, ptr %331, align 8
-  %332 = load %"github.com/goplus/llgo/internal/runtime.iface", ptr %329, align 8
-  %333 = alloca { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, align 8
-  %334 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %333, i32 0, i32 0
-  store %"github.com/goplus/llgo/internal/runtime.iface" %332, ptr %334, align 8
-  %335 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %333, i32 0, i32 1
-  store i1 true, ptr %335, align 1
-  %336 = load { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %333, align 8
+  %337 = extractvalue %"github.com/goplus/llgo/internal/runtime.iface" %111, 1
+  %338 = load ptr, ptr @"main.iface$gZBF8fFlqIMZ9M6lT2VWPyc3eu5Co6j0WoKGIEgDPAw", align 8
+  %339 = call ptr @"github.com/goplus/llgo/internal/runtime.NewItab"(ptr %338, ptr %138)
+  %340 = alloca %"github.com/goplus/llgo/internal/runtime.iface", align 8
+  %341 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %340, i32 0, i32 0
+  store ptr %339, ptr %341, align 8
+  %342 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %340, i32 0, i32 1
+  store ptr %337, ptr %342, align 8
+  %343 = load %"github.com/goplus/llgo/internal/runtime.iface", ptr %340, align 8
+  %344 = alloca { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, align 8
+  %345 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %344, i32 0, i32 0
+  store %"github.com/goplus/llgo/internal/runtime.iface" %343, ptr %345, align 8
+  %346 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %344, i32 0, i32 1
+  store i1 true, ptr %346, align 1
+  %347 = load { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %344, align 8
   br label %_llgo_49
 
 _llgo_48:                                         ; preds = %_llgo_16
-  %337 = alloca { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, align 8
-  %338 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %337, i32 0, i32 0
-  store { ptr, ptr } zeroinitializer, ptr %338, align 8
-  %339 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %337, i32 0, i32 1
-  store i1 false, ptr %339, align 1
-  %340 = load { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %337, align 8
+  %348 = alloca { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, align 8
+  %349 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %348, i32 0, i32 0
+  store { ptr, ptr } zeroinitializer, ptr %349, align 8
+  %350 = getelementptr inbounds { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %348, i32 0, i32 1
+  store i1 false, ptr %350, align 1
+  %351 = load { %"github.com/goplus/llgo/internal/runtime.iface", i1 }, ptr %348, align 8
   br label %_llgo_49
 
 _llgo_49:                                         ; preds = %_llgo_48, %_llgo_47
-  %341 = phi { %"github.com/goplus/llgo/internal/runtime.iface", i1 } [ %336, %_llgo_47 ], [ %340, %_llgo_48 ]
-  %342 = extractvalue { %"github.com/goplus/llgo/internal/runtime.iface", i1 } %341, 0
-  %343 = extractvalue { %"github.com/goplus/llgo/internal/runtime.iface", i1 } %341, 1
-  br i1 %343, label %_llgo_18, label %_llgo_17
+  %352 = phi { %"github.com/goplus/llgo/internal/runtime.iface", i1 } [ %347, %_llgo_47 ], [ %351, %_llgo_48 ]
+  %353 = extractvalue { %"github.com/goplus/llgo/internal/runtime.iface", i1 } %352, 0
+  %354 = extractvalue { %"github.com/goplus/llgo/internal/runtime.iface", i1 } %352, 1
+  br i1 %354, label %_llgo_18, label %_llgo_17
 }
 
 declare void @"github.com/goplus/llgo/internal/runtime.init"()
@@ -1283,7 +1298,7 @@ declare %"github.com/goplus/llgo/internal/abi.StructField" @"github.com/goplus/l
 
 declare void @"github.com/goplus/llgo/internal/runtime.InitNamed"(ptr, %"github.com/goplus/llgo/internal/runtime.String", %"github.com/goplus/llgo/internal/runtime.String", ptr, %"github.com/goplus/llgo/internal/runtime.Slice", %"github.com/goplus/llgo/internal/runtime.Slice")
 
-declare i1 @"github.com/goplus/llgo/internal/runtime.InterfaceEqual"(%"github.com/goplus/llgo/internal/runtime.eface", %"github.com/goplus/llgo/internal/runtime.eface", i1, i1)
+declare i1 @"github.com/goplus/llgo/internal/runtime.EfaceEqual"(%"github.com/goplus/llgo/internal/runtime.eface", %"github.com/goplus/llgo/internal/runtime.eface")
 
 declare void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String")
 
diff --git a/cl/_testgo/reader/out.ll b/cl/_testgo/reader/out.ll
index c2797d5e..85e80b2c 100644
--- a/cl/_testgo/reader/out.ll
+++ b/cl/_testgo/reader/out.ll
@@ -5,10 +5,10 @@ source_filename = "main"
 %main.nopCloserWriterTo = type { %"github.com/goplus/llgo/internal/runtime.iface" }
 %main.nopCloser = type { %"github.com/goplus/llgo/internal/runtime.iface" }
 %"github.com/goplus/llgo/internal/runtime.Slice" = type { ptr, i64, i64 }
+%"github.com/goplus/llgo/internal/runtime.eface" = type { ptr, ptr }
 %"github.com/goplus/llgo/internal/runtime.String" = type { ptr, i64 }
 %main.errorString = type { %"github.com/goplus/llgo/internal/runtime.String" }
 %main.stringReader = type { %"github.com/goplus/llgo/internal/runtime.String", i64, i64 }
-%"github.com/goplus/llgo/internal/runtime.eface" = type { ptr, ptr }
 %"github.com/goplus/llgo/internal/abi.Imethod" = type { %"github.com/goplus/llgo/internal/runtime.String", ptr }
 %"github.com/goplus/llgo/internal/abi.StructField" = type { %"github.com/goplus/llgo/internal/runtime.String", ptr, i64, %"github.com/goplus/llgo/internal/runtime.String", i1 }
 %"github.com/goplus/llgo/internal/abi.Method" = type { %"github.com/goplus/llgo/internal/runtime.String", ptr, ptr, ptr }
@@ -220,7 +220,7 @@ _llgo_0:
   br label %_llgo_1
 
 _llgo_1:                                          ; preds = %_llgo_6, %_llgo_3, %_llgo_0
-  %3 = phi %"github.com/goplus/llgo/internal/runtime.Slice" [ %2, %_llgo_0 ], [ %26, %_llgo_3 ], [ %48, %_llgo_6 ]
+  %3 = phi %"github.com/goplus/llgo/internal/runtime.Slice" [ %2, %_llgo_0 ], [ %26, %_llgo_3 ], [ %71, %_llgo_6 ]
   %4 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %3, 1
   %5 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %3, 2
   %6 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %3, 2
@@ -246,49 +246,80 @@ _llgo_1:                                          ; preds = %_llgo_6, %_llgo_3,
   %24 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %3, 2
   %25 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %3, 0
   %26 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %25, i64 1, i64 %24, i64 0, i64 %23, i64 %24)
-  %27 = call i1 @"github.com/goplus/llgo/internal/runtime.InterfaceEqual"(%"github.com/goplus/llgo/internal/runtime.iface" %21, %"github.com/goplus/llgo/internal/runtime.iface" zeroinitializer, i1 false, i1 false)
-  %28 = xor i1 %27, true
-  br i1 %28, label %_llgo_2, label %_llgo_3
+  %27 = call ptr @"github.com/goplus/llgo/internal/runtime.IfaceType"(%"github.com/goplus/llgo/internal/runtime.iface" %21)
+  %28 = extractvalue %"github.com/goplus/llgo/internal/runtime.iface" %21, 1
+  %29 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %30 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %29, i32 0, i32 0
+  store ptr %27, ptr %30, align 8
+  %31 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %29, i32 0, i32 1
+  store ptr %28, ptr %31, align 8
+  %32 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %29, align 8
+  %33 = call ptr @"github.com/goplus/llgo/internal/runtime.IfaceType"(%"github.com/goplus/llgo/internal/runtime.iface" zeroinitializer)
+  %34 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %35 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %34, i32 0, i32 0
+  store ptr %33, ptr %35, align 8
+  %36 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %34, i32 0, i32 1
+  store ptr null, ptr %36, align 8
+  %37 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %34, align 8
+  %38 = call i1 @"github.com/goplus/llgo/internal/runtime.EfaceEqual"(%"github.com/goplus/llgo/internal/runtime.eface" %32, %"github.com/goplus/llgo/internal/runtime.eface" %37)
+  %39 = xor i1 %38, true
+  br i1 %39, label %_llgo_2, label %_llgo_3
 
 _llgo_2:                                          ; preds = %_llgo_1
-  %29 = load %"github.com/goplus/llgo/internal/runtime.iface", ptr @main.EOF, align 8
-  %30 = call i1 @"github.com/goplus/llgo/internal/runtime.InterfaceEqual"(%"github.com/goplus/llgo/internal/runtime.iface" %21, %"github.com/goplus/llgo/internal/runtime.iface" %29, i1 false, i1 false)
-  br i1 %30, label %_llgo_4, label %_llgo_5
+  %40 = load %"github.com/goplus/llgo/internal/runtime.iface", ptr @main.EOF, align 8
+  %41 = call ptr @"github.com/goplus/llgo/internal/runtime.IfaceType"(%"github.com/goplus/llgo/internal/runtime.iface" %21)
+  %42 = extractvalue %"github.com/goplus/llgo/internal/runtime.iface" %21, 1
+  %43 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %44 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %43, i32 0, i32 0
+  store ptr %41, ptr %44, align 8
+  %45 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %43, i32 0, i32 1
+  store ptr %42, ptr %45, align 8
+  %46 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %43, align 8
+  %47 = call ptr @"github.com/goplus/llgo/internal/runtime.IfaceType"(%"github.com/goplus/llgo/internal/runtime.iface" %40)
+  %48 = extractvalue %"github.com/goplus/llgo/internal/runtime.iface" %40, 1
+  %49 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %50 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %49, i32 0, i32 0
+  store ptr %47, ptr %50, align 8
+  %51 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %49, i32 0, i32 1
+  store ptr %48, ptr %51, align 8
+  %52 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %49, align 8
+  %53 = call i1 @"github.com/goplus/llgo/internal/runtime.EfaceEqual"(%"github.com/goplus/llgo/internal/runtime.eface" %46, %"github.com/goplus/llgo/internal/runtime.eface" %52)
+  br i1 %53, label %_llgo_4, label %_llgo_5
 
 _llgo_3:                                          ; preds = %_llgo_1
-  %31 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %26, 1
-  %32 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %26, 2
-  %33 = icmp eq i64 %31, %32
-  br i1 %33, label %_llgo_6, label %_llgo_1
+  %54 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %26, 1
+  %55 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %26, 2
+  %56 = icmp eq i64 %54, %55
+  br i1 %56, label %_llgo_6, label %_llgo_1
 
 _llgo_4:                                          ; preds = %_llgo_2
   br label %_llgo_5
 
 _llgo_5:                                          ; preds = %_llgo_4, %_llgo_2
-  %34 = phi %"github.com/goplus/llgo/internal/runtime.iface" [ %21, %_llgo_2 ], [ zeroinitializer, %_llgo_4 ]
+  %57 = phi %"github.com/goplus/llgo/internal/runtime.iface" [ %21, %_llgo_2 ], [ zeroinitializer, %_llgo_4 ]
   %mrv = insertvalue { %"github.com/goplus/llgo/internal/runtime.Slice", %"github.com/goplus/llgo/internal/runtime.iface" } poison, %"github.com/goplus/llgo/internal/runtime.Slice" %26, 0
-  %mrv1 = insertvalue { %"github.com/goplus/llgo/internal/runtime.Slice", %"github.com/goplus/llgo/internal/runtime.iface" } %mrv, %"github.com/goplus/llgo/internal/runtime.iface" %34, 1
+  %mrv1 = insertvalue { %"github.com/goplus/llgo/internal/runtime.Slice", %"github.com/goplus/llgo/internal/runtime.iface" } %mrv, %"github.com/goplus/llgo/internal/runtime.iface" %57, 1
   ret { %"github.com/goplus/llgo/internal/runtime.Slice", %"github.com/goplus/llgo/internal/runtime.iface" } %mrv1
 
 _llgo_6:                                          ; preds = %_llgo_3
-  %35 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 1)
-  %36 = getelementptr inbounds i8, ptr %35, i64 0
-  store i8 0, ptr %36, align 1
-  %37 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
-  %38 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %37, i32 0, i32 0
-  store ptr %35, ptr %38, align 8
-  %39 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %37, i32 0, i32 1
-  store i64 1, ptr %39, align 4
-  %40 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %37, i32 0, i32 2
-  store i64 1, ptr %40, align 4
-  %41 = load %"github.com/goplus/llgo/internal/runtime.Slice", ptr %37, align 8
-  %42 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %41, 0
-  %43 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %41, 1
-  %44 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.SliceAppend"(%"github.com/goplus/llgo/internal/runtime.Slice" %26, ptr %42, i64 %43, i64 1)
-  %45 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %26, 1
-  %46 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %44, 2
-  %47 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %44, 0
-  %48 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %47, i64 1, i64 %46, i64 0, i64 %45, i64 %46)
+  %58 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 1)
+  %59 = getelementptr inbounds i8, ptr %58, i64 0
+  store i8 0, ptr %59, align 1
+  %60 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
+  %61 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %60, i32 0, i32 0
+  store ptr %58, ptr %61, align 8
+  %62 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %60, i32 0, i32 1
+  store i64 1, ptr %62, align 4
+  %63 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %60, i32 0, i32 2
+  store i64 1, ptr %63, align 4
+  %64 = load %"github.com/goplus/llgo/internal/runtime.Slice", ptr %60, align 8
+  %65 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %64, 0
+  %66 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %64, 1
+  %67 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.SliceAppend"(%"github.com/goplus/llgo/internal/runtime.Slice" %26, ptr %65, i64 %66, i64 1)
+  %68 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %26, 1
+  %69 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %67, 2
+  %70 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %67, 0
+  %71 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %70, i64 1, i64 %69, i64 0, i64 %68, i64 %69)
   br label %_llgo_1
 }
 
@@ -1091,8 +1122,23 @@ _llgo_6:                                          ; preds = %_llgo_5, %_llgo_7,
   ret { i64, %"github.com/goplus/llgo/internal/runtime.iface" } %mrv1
 
 _llgo_7:                                          ; preds = %_llgo_4
-  %38 = call i1 @"github.com/goplus/llgo/internal/runtime.InterfaceEqual"(%"github.com/goplus/llgo/internal/runtime.iface" %17, %"github.com/goplus/llgo/internal/runtime.iface" zeroinitializer, i1 false, i1 false)
-  br i1 %38, label %_llgo_5, label %_llgo_6
+  %38 = call ptr @"github.com/goplus/llgo/internal/runtime.IfaceType"(%"github.com/goplus/llgo/internal/runtime.iface" %17)
+  %39 = extractvalue %"github.com/goplus/llgo/internal/runtime.iface" %17, 1
+  %40 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %41 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %40, i32 0, i32 0
+  store ptr %38, ptr %41, align 8
+  %42 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %40, i32 0, i32 1
+  store ptr %39, ptr %42, align 8
+  %43 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %40, align 8
+  %44 = call ptr @"github.com/goplus/llgo/internal/runtime.IfaceType"(%"github.com/goplus/llgo/internal/runtime.iface" zeroinitializer)
+  %45 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %46 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %45, i32 0, i32 0
+  store ptr %44, ptr %46, align 8
+  %47 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %45, i32 0, i32 1
+  store ptr null, ptr %47, align 8
+  %48 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %45, align 8
+  %49 = call i1 @"github.com/goplus/llgo/internal/runtime.EfaceEqual"(%"github.com/goplus/llgo/internal/runtime.eface" %43, %"github.com/goplus/llgo/internal/runtime.eface" %48)
+  br i1 %49, label %_llgo_5, label %_llgo_6
 }
 
 declare ptr @"github.com/goplus/llgo/internal/runtime.IfaceType"(%"github.com/goplus/llgo/internal/runtime.iface")
@@ -2673,7 +2719,7 @@ declare %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llg
 
 declare ptr @"github.com/goplus/llgo/internal/runtime.IfacePtrData"(%"github.com/goplus/llgo/internal/runtime.iface")
 
-declare i1 @"github.com/goplus/llgo/internal/runtime.InterfaceEqual"(%"github.com/goplus/llgo/internal/runtime.eface", %"github.com/goplus/llgo/internal/runtime.eface", i1, i1)
+declare i1 @"github.com/goplus/llgo/internal/runtime.EfaceEqual"(%"github.com/goplus/llgo/internal/runtime.eface", %"github.com/goplus/llgo/internal/runtime.eface")
 
 declare %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.SliceAppend"(%"github.com/goplus/llgo/internal/runtime.Slice", ptr, i64, i64)
 
diff --git a/internal/runtime/z_eface.go b/internal/runtime/z_eface.go
deleted file mode 100644
index 7cd7ba48..00000000
--- a/internal/runtime/z_eface.go
+++ /dev/null
@@ -1,130 +0,0 @@
-/*
- * Copyright (c) 2024 The GoPlus Authors (goplus.org). All rights reserved.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package runtime
-
-import (
-	"unsafe"
-
-	"github.com/goplus/llgo/internal/abi"
-	"github.com/goplus/llgo/internal/runtime/c"
-)
-
-func InterfaceEqual(x, y any, xeface, yeface bool) bool {
-	return efaceEqual(unpackEface(x, xeface), unpackEface(y, yeface))
-}
-
-func unpackEface(i any, emtpy bool) eface {
-	if emtpy {
-		return *(*eface)(unsafe.Pointer(&i))
-	}
-	e := (*iface)(unsafe.Pointer(&i))
-	if e.tab == nil {
-		return eface{}
-	}
-	return eface{e.tab._type, e.data}
-}
-
-func efaceEqual(v, u eface) bool {
-	if v.Kind() == abi.Interface {
-		v = v.Elem()
-	}
-	if u.Kind() == abi.Interface {
-		u = u.Elem()
-	}
-	if v._type == nil || u._type == nil {
-		return v._type == u._type
-	}
-	if v._type != u._type {
-		return false
-	}
-	if v._type.Kind_&abi.KindDirectIface != 0 {
-		return v.data == u.data
-	}
-	switch v.Kind() {
-	case abi.Bool,
-		abi.Int, abi.Int8, abi.Int16, abi.Int32, abi.Int64,
-		abi.Uint, abi.Uint8, abi.Uint16, abi.Uint32, abi.Uint64, abi.Uintptr,
-		abi.Float32, abi.Float64:
-		return *(*uintptr)(v.data) == *(*uintptr)(u.data)
-	case abi.Complex64, abi.Complex128:
-		panic("TODO complex")
-	case abi.String:
-		return *(*string)(v.data) == *(*string)(u.data)
-	case abi.Pointer, abi.UnsafePointer:
-		return v.data == u.data
-	case abi.Array:
-		n := v._type.Len()
-		tt := v._type.ArrayType()
-		index := func(data unsafe.Pointer, i int) eface {
-			offset := i * int(tt.Elem.Size_)
-			return eface{tt.Elem, c.Advance(data, offset)}
-		}
-		for i := 0; i < n; i++ {
-			if !efaceEqual(index(v.data, i), index(u.data, i)) {
-				return false
-			}
-		}
-		return true
-	case abi.Struct:
-		st := v._type.StructType()
-		field := func(data unsafe.Pointer, ft *abi.StructField) eface {
-			return eface{ft.Typ, c.Advance(data, int(ft.Offset))}
-		}
-		for _, ft := range st.Fields {
-			if !efaceEqual(field(v.data, &ft), field(u.data, &ft)) {
-				return false
-			}
-		}
-		return true
-	case abi.Func, abi.Map, abi.Slice:
-		break
-	}
-	panic("not comparable")
-}
-
-func (v eface) Kind() abi.Kind {
-	if v._type == nil {
-		return abi.Invalid
-	}
-	return v._type.Kind()
-}
-
-func (v eface) Elem() eface {
-	switch v.Kind() {
-	case abi.Interface:
-		var i any
-		tt := (*abi.InterfaceType)(unsafe.Pointer(v._type))
-		if len(tt.Methods) == 0 {
-			i = *(*any)(v.data)
-		} else {
-			i = (any)(*(*interface {
-				M()
-			})(v.data))
-		}
-		return *(*eface)(unsafe.Pointer(&i))
-	case abi.Pointer:
-		ptr := v.data
-		if v._type.Kind_&abi.KindDirectIface != 0 {
-			ptr = *(*unsafe.Pointer)(ptr)
-		}
-		if ptr == nil {
-			return eface{}
-		}
-		return eface{v._type.Elem(), ptr}
-	}
-	panic("invalid eface elem")
-}
diff --git a/internal/runtime/z_face.go b/internal/runtime/z_face.go
index fe2223e8..2da98913 100644
--- a/internal/runtime/z_face.go
+++ b/internal/runtime/z_face.go
@@ -325,4 +325,95 @@ func Implements(T, V *abi.Type) bool {
 	return false
 }
 
+func EfaceEqual(v, u eface) bool {
+	if v.Kind() == abi.Interface {
+		v = v.Elem()
+	}
+	if u.Kind() == abi.Interface {
+		u = u.Elem()
+	}
+	if v._type == nil || u._type == nil {
+		return v._type == u._type
+	}
+	if v._type != u._type {
+		return false
+	}
+	if v._type.Kind_&abi.KindDirectIface != 0 {
+		return v.data == u.data
+	}
+	switch v.Kind() {
+	case abi.Bool,
+		abi.Int, abi.Int8, abi.Int16, abi.Int32, abi.Int64,
+		abi.Uint, abi.Uint8, abi.Uint16, abi.Uint32, abi.Uint64, abi.Uintptr,
+		abi.Float32, abi.Float64:
+		return *(*uintptr)(v.data) == *(*uintptr)(u.data)
+	case abi.Complex64, abi.Complex128:
+		panic("TODO complex")
+	case abi.String:
+		return *(*string)(v.data) == *(*string)(u.data)
+	case abi.Pointer, abi.UnsafePointer:
+		return v.data == u.data
+	case abi.Array:
+		n := v._type.Len()
+		tt := v._type.ArrayType()
+		index := func(data unsafe.Pointer, i int) eface {
+			offset := i * int(tt.Elem.Size_)
+			return eface{tt.Elem, c.Advance(data, offset)}
+		}
+		for i := 0; i < n; i++ {
+			if !EfaceEqual(index(v.data, i), index(u.data, i)) {
+				return false
+			}
+		}
+		return true
+	case abi.Struct:
+		st := v._type.StructType()
+		field := func(data unsafe.Pointer, ft *abi.StructField) eface {
+			return eface{ft.Typ, c.Advance(data, int(ft.Offset))}
+		}
+		for _, ft := range st.Fields {
+			if !EfaceEqual(field(v.data, &ft), field(u.data, &ft)) {
+				return false
+			}
+		}
+		return true
+	case abi.Func, abi.Map, abi.Slice:
+		break
+	}
+	panic("not comparable")
+}
+
+func (v eface) Kind() abi.Kind {
+	if v._type == nil {
+		return abi.Invalid
+	}
+	return v._type.Kind()
+}
+
+func (v eface) Elem() eface {
+	switch v.Kind() {
+	case abi.Interface:
+		var i any
+		tt := (*abi.InterfaceType)(unsafe.Pointer(v._type))
+		if len(tt.Methods) == 0 {
+			i = *(*any)(v.data)
+		} else {
+			i = (any)(*(*interface {
+				M()
+			})(v.data))
+		}
+		return *(*eface)(unsafe.Pointer(&i))
+	case abi.Pointer:
+		ptr := v.data
+		if v._type.Kind_&abi.KindDirectIface != 0 {
+			ptr = *(*unsafe.Pointer)(ptr)
+		}
+		if ptr == nil {
+			return eface{}
+		}
+		return eface{v._type.Elem(), ptr}
+	}
+	panic("invalid eface elem")
+}
+
 // -----------------------------------------------------------------------------
diff --git a/ssa/expr.go b/ssa/expr.go
index f63d0da2..9b200c70 100644
--- a/ssa/expr.go
+++ b/ssa/expr.go
@@ -427,11 +427,17 @@ func (b Builder) BinOp(op token.Token, x, y Expr) Expr {
 			}
 		case vkIface, vkEface:
 			prog := b.Prog
+			toEface := func(x Expr, emtpy bool) Expr {
+				if emtpy {
+					return x
+				}
+				return Expr{b.unsafeEface(b.faceAbiType(x).impl, b.faceData(x.impl)), prog.rtType("Eface")}
+			}
 			switch op {
 			case token.EQL:
-				return b.InlineCall(b.Pkg.rtFunc("InterfaceEqual"), x, y, prog.BoolVal(x.kind == vkEface), prog.BoolVal(y.kind == vkEface))
+				return b.InlineCall(b.Pkg.rtFunc("EfaceEqual"), toEface(x, x.kind == vkEface), toEface(y, y.kind == vkEface))
 			case token.NEQ:
-				ret := b.InlineCall(b.Pkg.rtFunc("InterfaceEqual"), x, y, prog.BoolVal(x.kind == vkEface), prog.BoolVal(y.kind == vkEface))
+				ret := b.InlineCall(b.Pkg.rtFunc("EfaceEqual"), toEface(x, x.kind == vkEface), toEface(y, y.kind == vkEface))
 				ret.impl = llvm.CreateNot(b.impl, ret.impl)
 				return ret
 			}