1; RUN: not --crash llc < %s -enable-emscripten-cxx-exceptions -mattr=+multivalue 2>&1 | FileCheck %s --check-prefix=EH 2; RUN: not --crash llc < %s -enable-emscripten-sjlj -mattr=+multivalue 2>&1 | FileCheck %s --check-prefix=SJLJ 3 4; Currently multivalue returning functions are not supported in Emscripten EH / 5; SjLj. Make sure they error out. 6 7target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128" 8target triple = "wasm32-unknown-unknown" 9 10%struct.__jmp_buf_tag = type { [6 x i32], i32, [32 x i32] } 11 12define void @exception() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { 13entry: 14 invoke {i32, i32} @foo(i32 3) 15 to label %try.cont unwind label %lpad 16 17lpad: ; preds = %entry 18 %1 = landingpad { i8*, i32 } 19 catch i8* null 20 %2 = extractvalue { i8*, i32 } %1, 0 21 %3 = extractvalue { i8*, i32 } %1, 1 22 %4 = call i8* @__cxa_begin_catch(i8* %2) #2 23 call void @__cxa_end_catch() 24 br label %try.cont 25 26try.cont: ; preds = %entry, %lpad 27 ret void 28} 29 30define void @setjmp_longjmp() { 31entry: 32 %buf = alloca [1 x %struct.__jmp_buf_tag], align 16 33 %arraydecay = getelementptr inbounds [1 x %struct.__jmp_buf_tag], [1 x %struct.__jmp_buf_tag]* %buf, i32 0, i32 0 34 %call = call i32 @setjmp(%struct.__jmp_buf_tag* %arraydecay) #0 35 %arraydecay1 = getelementptr inbounds [1 x %struct.__jmp_buf_tag], [1 x %struct.__jmp_buf_tag]* %buf, i32 0, i32 0 36 call {i32, i32} @foo(i32 3) 37 call void @longjmp(%struct.__jmp_buf_tag* %arraydecay1, i32 1) #1 38 unreachable 39} 40 41declare {i32, i32} @foo(i32) 42declare i32 @__gxx_personality_v0(...) 43declare i8* @__cxa_begin_catch(i8*) 44declare void @__cxa_end_catch() 45; Function Attrs: returns_twice 46declare i32 @setjmp(%struct.__jmp_buf_tag*) #0 47; Function Attrs: noreturn 48declare void @longjmp(%struct.__jmp_buf_tag*, i32) #1 49declare i8* @malloc(i32) 50declare void @free(i8*) 51 52attributes #0 = { returns_twice } 53attributes #1 = { noreturn } 54attributes #2 = { nounwind } 55 56; EH: LLVM ERROR: Emscripten EH/SjLj does not support multivalue returns 57; SJLJ: LLVM ERROR: Emscripten EH/SjLj does not support multivalue returns 58