1 ; RUN: llc < %s -asm-verbose=false -enable-emscripten-sjlj -wasm-keep-registers | FileCheck %s
3 target triple = "wasm32-unknown-unknown"
5 %struct.__jmp_buf_tag = type { [6 x i32], i32, [32 x i32] }
7 declare i32 @setjmp(%struct.__jmp_buf_tag*) #0
8 declare {i32, i32} @returns_struct()
10 ; Test the combination of backend legalization of large return types and the
11 ; Emscripten sjlj transformation
12 define {i32, i32} @legalized_to_sret() {
14 %env = alloca [1 x %struct.__jmp_buf_tag], align 16
15 %arraydecay = getelementptr inbounds [1 x %struct.__jmp_buf_tag], [1 x %struct.__jmp_buf_tag]* %env, i32 0, i32 0
16 %call = call i32 @setjmp(%struct.__jmp_buf_tag* %arraydecay) #0
17 ; This is the function pointer to pass to invoke.
18 ; It needs to be the first argument (that's what we're testing here)
19 ; CHECK: i32.const $push[[FPTR:[0-9]+]]=, returns_struct
20 ; This is the sret stack region (as an offset from the stack pointer local)
21 ; CHECK: call invoke_vi, $pop[[FPTR]]
22 %ret = call {i32, i32} @returns_struct()
26 attributes #0 = { returns_twice }