xref: /llvm-project/llvm/test/CodeGen/AArch64/win64-jumptable.ll (revision bdc0afc87181d4f7ab8aad2da6fa70a1204f0a84)
1; RUN: llc -o - %s -mtriple=aarch64-windows -aarch64-min-jump-table-entries=4 -aarch64-enable-compress-jump-tables=0 | FileCheck %s
2; RUN: llc -o - %s -mtriple=aarch64-windows -aarch64-min-jump-table-entries=4 -aarch64-enable-compress-jump-tables=0 -filetype=obj | llvm-readobj --unwind - | FileCheck %s -check-prefix=UNWIND
3
4define void @f(i32 %x) {
5entry:
6  switch i32 %x, label %sw.epilog [
7    i32 0, label %sw.bb
8    i32 1, label %sw.bb1
9    i32 2, label %sw.bb2
10    i32 3, label %sw.bb3
11  ]
12
13sw.bb:
14  tail call void @g(i32 0, i32 4)
15  br label %sw.epilog
16
17sw.bb1:
18  tail call void @g(i32 1, i32 5)
19  br label %sw.epilog
20
21sw.bb2:
22  tail call void @g(i32 2, i32 6)
23  br label %sw.epilog
24
25sw.bb3:
26  tail call void @g(i32 3, i32 7)
27  br label %sw.epilog
28
29sw.epilog:
30  tail call void @g(i32 10, i32 8)
31  ret void
32}
33
34declare void @g(i32, i32)
35
36; CHECK:    .text
37; CHECK:    f:
38; CHECK:    .seh_proc f
39; CHECK:    b g
40; CHECK-NEXT:  .seh_endfunclet
41; CHECK-NEXT:  .section .rdata,"dr"
42; CHECK-NEXT: .p2align  2
43; CHECK-NEXT: .LJTI0_0:
44; CHECK:    .word .LBB0_2-.Ltmp0
45; CHECK:    .word .LBB0_5-.Ltmp0
46; CHECK:    .word .LBB0_3-.Ltmp0
47; CHECK:    .word .LBB0_4-.Ltmp0
48; CHECK:    .text
49; CHECK:    .seh_endproc
50
51; Check that we can emit an object file with correct unwind info.
52; UNWIND: FunctionLength: {{[1-9][0-9]*}}
53