diff --git a/_demo/setjmp/setjmp.go b/_demo/setjmp/setjmp.go
index c281d90f..b8508de5 100644
--- a/_demo/setjmp/setjmp.go
+++ b/_demo/setjmp/setjmp.go
@@ -2,7 +2,6 @@ package main
 
 import (
 	"github.com/goplus/llgo/c/setjmp"
-	"github.com/goplus/llgo/c/setjmp/trycatch"
 )
 
 func main() {
@@ -10,7 +9,6 @@ func main() {
 	switch ret := setjmp.Sigsetjmp(&jb, 0); ret {
 	case 0:
 		println("Hello, setjmp!")
-		trycatch.ThrowCppException()
 		setjmp.Siglongjmp(&jb, 1)
 	default:
 		println("exception:", ret)
diff --git a/c/setjmp/trycatch/demo.ll b/c/setjmp/trycatch/demo.ll
deleted file mode 100644
index 0e811d18..00000000
--- a/c/setjmp/trycatch/demo.ll
+++ /dev/null
@@ -1,73 +0,0 @@
-; ModuleID = '_code/demo.cpp'
-source_filename = "_code/demo.cpp"
-
-%"class.std::runtime_error" = type { %"class.std::exception", %"class.std::__1::__libcpp_refstring" }
-%"class.std::exception" = type { i32 (...)** }
-%"class.std::__1::__libcpp_refstring" = type { i8* }
-
-@.str = private unnamed_addr constant [14 x i8] c"C++ exception\00", align 1
-@_ZTISt13runtime_error = external constant i8*
-
-; Function Attrs: noinline optnone ssp uwtable(sync)
-define void @throwCppException() #0 personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
-  %1 = alloca i8*, align 8
-  %2 = alloca i32, align 4
-  %3 = call i8* @__cxa_allocate_exception(i64 16) #3
-  %4 = bitcast i8* %3 to %"class.std::runtime_error"*
-  %5 = invoke %"class.std::runtime_error"* @_ZNSt13runtime_errorC1EPKc(%"class.std::runtime_error"* noundef %4, i8* noundef getelementptr inbounds ([14 x i8], [14 x i8]* @.str, i64 0, i64 0))
-          to label %6 unwind label %7
-
-6:                                                ; preds = %0
-  call void @__cxa_throw(i8* %3, i8* bitcast (i8** @_ZTISt13runtime_error to i8*), i8* bitcast (%"class.std::runtime_error"* (%"class.std::runtime_error"*)* @_ZNSt13runtime_errorD1Ev to i8*)) #4
-  unreachable
-
-7:                                                ; preds = %0
-  %8 = landingpad { i8*, i32 }
-          cleanup
-  %9 = extractvalue { i8*, i32 } %8, 0
-  store i8* %9, i8** %1, align 8
-  %10 = extractvalue { i8*, i32 } %8, 1
-  store i32 %10, i32* %2, align 4
-  call void @__cxa_free_exception(i8* %3) #3
-  br label %11
-
-11:                                               ; preds = %7
-  %12 = load i8*, i8** %1, align 8
-  %13 = load i32, i32* %2, align 4
-  %14 = insertvalue { i8*, i32 } undef, i8* %12, 0
-  %15 = insertvalue { i8*, i32 } %14, i32 %13, 1
-  resume { i8*, i32 } %15
-}
-
-declare i8* @__cxa_allocate_exception(i64)
-
-declare %"class.std::runtime_error"* @_ZNSt13runtime_errorC1EPKc(%"class.std::runtime_error"* noundef returned, i8* noundef) unnamed_addr #1
-
-declare i32 @__gxx_personality_v0(...)
-
-declare void @__cxa_free_exception(i8*)
-
-; Function Attrs: nounwind
-declare %"class.std::runtime_error"* @_ZNSt13runtime_errorD1Ev(%"class.std::runtime_error"* noundef returned) unnamed_addr #2
-
-declare void @__cxa_throw(i8*, i8*, i8*)
-
-attributes #0 = { noinline optnone ssp uwtable(sync) "frame-pointer"="non-leaf" "min-legal-vector-width"="0" "no-trapping-math"="true" "probe-stack"="__chkstk_darwin" "stack-protector-buffer-size"="8" "target-cpu"="apple-m1" "target-features"="+aes,+crc,+crypto,+dotprod,+fp-armv8,+fp16fml,+fullfp16,+lse,+neon,+ras,+rcpc,+rdm,+sha2,+sha3,+sm4,+v8.5a,+zcm,+zcz" }
-attributes #1 = { "frame-pointer"="non-leaf" "no-trapping-math"="true" "probe-stack"="__chkstk_darwin" "stack-protector-buffer-size"="8" "target-cpu"="apple-m1" "target-features"="+aes,+crc,+crypto,+dotprod,+fp-armv8,+fp16fml,+fullfp16,+lse,+neon,+ras,+rcpc,+rdm,+sha2,+sha3,+sm4,+v8.5a,+zcm,+zcz" }
-attributes #2 = { nounwind "frame-pointer"="non-leaf" "no-trapping-math"="true" "probe-stack"="__chkstk_darwin" "stack-protector-buffer-size"="8" "target-cpu"="apple-m1" "target-features"="+aes,+crc,+crypto,+dotprod,+fp-armv8,+fp16fml,+fullfp16,+lse,+neon,+ras,+rcpc,+rdm,+sha2,+sha3,+sm4,+v8.5a,+zcm,+zcz" }
-attributes #3 = { nounwind }
-attributes #4 = { noreturn }
-
-!llvm.module.flags = !{!0, !1, !2, !3, !4, !5, !6, !7, !8}
-!llvm.ident = !{!9}
-
-!0 = !{i32 2, !"SDK Version", [2 x i32] [i32 13, i32 3]}
-!1 = !{i32 1, !"wchar_size", i32 4}
-!2 = !{i32 8, !"branch-target-enforcement", i32 0}
-!3 = !{i32 8, !"sign-return-address", i32 0}
-!4 = !{i32 8, !"sign-return-address-all", i32 0}
-!5 = !{i32 8, !"sign-return-address-with-bkey", i32 0}
-!6 = !{i32 7, !"PIC Level", i32 2}
-!7 = !{i32 7, !"uwtable", i32 1}
-!8 = !{i32 7, !"frame-pointer", i32 1}
-!9 = !{!"Apple clang version 14.0.3 (clang-1403.0.22.14.1)"}