| ; RUN: not --crash llc < %s -enable-emscripten-cxx-exceptions -mattr=+multivalue 2>&1 | FileCheck %s --check-prefix=EH |
| ; RUN: not --crash llc < %s -enable-emscripten-sjlj -mattr=+multivalue 2>&1 | FileCheck %s --check-prefix=SJLJ |
| |
| ; Currently multivalue returning functions are not supported in Emscripten EH / |
| ; SjLj. Make sure they error out. |
| |
| target triple = "wasm32-unknown-unknown" |
| |
| %struct.__jmp_buf_tag = type { [6 x i32], i32, [32 x i32] } |
| |
| define void @exception() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { |
| entry: |
| invoke {i32, i32} @foo(i32 3) |
| to label %try.cont unwind label %lpad |
| |
| lpad: ; preds = %entry |
| %1 = landingpad { i8*, i32 } |
| catch i8* null |
| %2 = extractvalue { i8*, i32 } %1, 0 |
| %3 = extractvalue { i8*, i32 } %1, 1 |
| %4 = call i8* @__cxa_begin_catch(i8* %2) #2 |
| call void @__cxa_end_catch() |
| br label %try.cont |
| |
| try.cont: ; preds = %entry, %lpad |
| ret void |
| } |
| |
| define void @setjmp_longjmp() { |
| entry: |
| %buf = alloca [1 x %struct.__jmp_buf_tag], align 16 |
| %arraydecay = getelementptr inbounds [1 x %struct.__jmp_buf_tag], [1 x %struct.__jmp_buf_tag]* %buf, i32 0, i32 0 |
| %call = call i32 @setjmp(%struct.__jmp_buf_tag* %arraydecay) #0 |
| %arraydecay1 = getelementptr inbounds [1 x %struct.__jmp_buf_tag], [1 x %struct.__jmp_buf_tag]* %buf, i32 0, i32 0 |
| call {i32, i32} @foo(i32 3) |
| call void @longjmp(%struct.__jmp_buf_tag* %arraydecay1, i32 1) #1 |
| unreachable |
| } |
| |
| declare {i32, i32} @foo(i32) |
| declare i32 @__gxx_personality_v0(...) |
| declare i8* @__cxa_begin_catch(i8*) |
| declare void @__cxa_end_catch() |
| ; Function Attrs: returns_twice |
| declare i32 @setjmp(%struct.__jmp_buf_tag*) #0 |
| ; Function Attrs: noreturn |
| declare void @longjmp(%struct.__jmp_buf_tag*, i32) #1 |
| declare i8* @malloc(i32) |
| declare void @free(i8*) |
| |
| attributes #0 = { returns_twice } |
| attributes #1 = { noreturn } |
| attributes #2 = { nounwind } |
| |
| ; EH: LLVM ERROR: Emscripten EH/SjLj does not support multivalue returns |
| ; SJLJ: LLVM ERROR: Emscripten EH/SjLj does not support multivalue returns |