| ; RUN: not --crash llc < %s -wasm-enable-eh -enable-emscripten-sjlj -exception-model=wasm 2>&1 | FileCheck %s |
| |
| target triple = "wasm32-unknown-unknown" |
| |
| %struct.__jmp_buf_tag = type { [6 x i32], i32, [32 x i32] } |
| |
| define void @wasm_eh_emscripten_sjlj_error() personality ptr @__gxx_wasm_personality_v0 { |
| entry: |
| %buf = alloca [1 x %struct.__jmp_buf_tag], align 16 |
| %call = call i32 @setjmp(ptr %buf) #0 |
| br label %bb |
| |
| bb: |
| invoke void @foo() |
| to label %try.cont unwind label %catch.dispatch |
| |
| catch.dispatch: ; preds = %entry |
| %0 = catchswitch within none [label %catch.start] unwind to caller |
| |
| catch.start: ; preds = %catch.dispatch |
| %1 = catchpad within %0 [ptr null] |
| %2 = call ptr @llvm.wasm.get.exception(token %1) |
| %3 = call i32 @llvm.wasm.get.ehselector(token %1) |
| %4 = call ptr @__cxa_begin_catch(ptr %2) #2 [ "funclet"(token %1) ] |
| call void @__cxa_end_catch() [ "funclet"(token %1) ] |
| catchret from %1 to label %try.cont |
| |
| try.cont: ; preds = %entry, %catch.start |
| ret void |
| } |
| |
| declare void @foo() |
| declare i32 @__gxx_wasm_personality_v0(...) |
| ; Function Attrs: nounwind |
| declare ptr @llvm.wasm.get.exception(token) #0 |
| ; Function Attrs: nounwind |
| declare i32 @llvm.wasm.get.ehselector(token) #0 |
| declare ptr @__cxa_begin_catch(ptr) |
| declare void @__cxa_end_catch() |
| ; Function Attrs: returns_twice |
| declare i32 @setjmp(ptr) #0 |
| ; Function Attrs: noreturn |
| declare void @longjmp(ptr, i32) #1 |
| declare ptr @malloc(i32) |
| declare void @free(ptr) |
| |
| attributes #0 = { returns_twice } |
| attributes #1 = { noreturn } |
| attributes #2 = { nounwind } |
| |
| ; CHECK: LLVM ERROR: In function wasm_eh_emscripten_sjlj_error: When using Wasm EH with Emscripten SjLj, there is a restriction that `setjmp` function call and exception cannot be used within the same function |
| ; CHECK-NEXT: invoke void @foo() |
| ; CHECK-NEXT: to label %try.cont unwind label %catch.dispatch |