1;; Check that this produces the expected assembly output
2; RUN: llc -mtriple=thumbv7-windows -o - %s -verify-machineinstrs | FileCheck %s
3;; Also try to write an object file, which verifies that the SEH opcodes
4;; match the actual prologue/epilogue length.
5; RUN: llc -mtriple=thumbv7-windows -filetype=obj -o %t.obj %s -verify-machineinstrs
6
7; CHECK-LABEL: alloc_local:
8; CHECK-NEXT: .seh_proc alloc_local
9; CHECK-NEXT: @ %bb.0:                                @ %entry
10; CHECK-NEXT:         push.w  {r4, r5, r6, r7, r8, r9, r10}
11; CHECK-NEXT:         .seh_save_regs_w        {r4-r10}
12; CHECK-NEXT:         sub     sp, #4
13; CHECK-NEXT:         .seh_stackalloc 4
14; CHECK-NEXT:         vpush   {d8, d9, d10, d11, d12, d13, d14, d15}
15; CHECK-NEXT:         .seh_save_fregs         {d8-d15}
16; CHECK-NEXT:         push.w  {r11, lr}
17; CHECK-NEXT:         .seh_save_regs_w        {r11, lr}
18; CHECK-NEXT:         mov     r11, sp
19; CHECK-NEXT:         .seh_save_sp    r11
20; CHECK-NEXT:         .seh_endprologue
21; CHECK-NEXT:         movw    r4, #1256
22; CHECK-NEXT:         bl      __chkstk
23; CHECK-NEXT:         sub.w   sp, sp, r4
24; CHECK-NEXT:         mov     r4, sp
25; CHECK-NEXT:         bfc     r4, #0, #4
26; CHECK-NEXT:         mov     sp, r4
27
28; CHECK:              ldr.w   [[TMP:r[0-9]]], [r11, #104]
29; CHECK:              mov     r0, [[TMP]]
30
31; CHECK:              .seh_startepilogue
32; CHECK-NEXT:         mov     sp, r11
33; CHECK-NEXT:         .seh_save_sp    r11
34; CHECK-NEXT:         pop.w   {r11, lr}
35; CHECK-NEXT:         .seh_save_regs_w        {r11, lr}
36; CHECK-NEXT:         vpop    {d8, d9, d10, d11, d12, d13, d14, d15}
37; CHECK-NEXT:         .seh_save_fregs         {d8-d15}
38; CHECK-NEXT:         add     sp, #4
39; CHECK-NEXT:         .seh_stackalloc 4
40; CHECK-NEXT:         pop.w   {r4, r5, r6, r7, r8, r9, r10}
41; CHECK-NEXT:         .seh_save_regs_w        {r4-r10}
42; CHECK-NEXT:         bx      lr
43; CHECK-NEXT:         .seh_nop
44; CHECK-NEXT:         .seh_endepilogue
45; CHECK-NEXT:         .seh_endproc
46
47define arm_aapcs_vfpcc void @alloc_local(i32 noundef %a, i32 noundef %b, i32 noundef %c, i32 noundef %d, i32 noundef %e) uwtable {
48entry:
49  %buf2 = alloca [5000 x i8], align 16
50  %vla = alloca i8, i32 %a, align 1
51  call void @llvm.lifetime.start.p0(i64 5000, ptr nonnull %buf2) #3
52  call arm_aapcs_vfpcc void @other(i32 noundef %e, ptr noundef nonnull %vla, ptr noundef nonnull %buf2)
53  call void asm sideeffect "", "~{r4},~{r5},~{r6},~{r7},~{r8},~{r9},~{r10},~{r11},~{r12}"()
54  call void asm sideeffect "", "~{d8},~{d9},~{d10},~{d11},~{d12},~{d13},~{d14},~{d15}"()
55  call void @llvm.lifetime.end.p0(i64 5000, ptr nonnull %buf2) #3
56  ret void
57}
58
59declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture)
60declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture)
61
62declare arm_aapcs_vfpcc void @other(i32 noundef, ptr noundef, ptr noundef)
63