1 ; RUN: llc < %s -asm-verbose=false -enable-emscripten-sjlj -wasm-keep-registers | FileCheck %s
3 target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
4 target triple = "wasm32-unknown-unknown"
6 %struct.__jmp_buf_tag = type { [6 x i32], i32, [32 x i32] }
8 declare i32 @setjmp(%struct.__jmp_buf_tag*) #0
9 declare {i32, i32} @returns_struct()
11 ; Test the combination of backend legalization of large return types and the
12 ; Emscripten sjlj transformation
13 define {i32, i32} @legalized_to_sret() {
15 %env = alloca [1 x %struct.__jmp_buf_tag], align 16
16 %arraydecay = getelementptr inbounds [1 x %struct.__jmp_buf_tag], [1 x %struct.__jmp_buf_tag]* %env, i32 0, i32 0
17 %call = call i32 @setjmp(%struct.__jmp_buf_tag* %arraydecay) #0
18 ; This is the function pointer to pass to invoke.
19 ; It needs to be the first argument (that's what we're testing here)
20 ; CHECK: i32.const $push[[FPTR:[0-9]+]]=, returns_struct
21 ; This is the sret stack region (as an offset from the stack pointer local)
22 ; CHECK: call "__invoke_{i32.i32}", $pop[[FPTR]]
23 %ret = call {i32, i32} @returns_struct()
27 attributes #0 = { returns_twice }