xref: /llvm-project/llvm/test/CodeGen/Thumb/thumb-execute-only-long-calls.ll (revision 1f082d2da0d7332e36c48ba3c626f01c464954de)
1; RUN: llc < %s -mtriple=thumbv6m-none-eabi -relocation-model=static | FileCheck %s -check-prefixes=CHECK
2
3define void @fn() #0 {
4entry:
5; CHECK-LABEL: fn:
6; CHECK:       ldr [[REG:r[0-9]+]], [[LABEL:[^\s]+]]
7; CHECK-NEXT:  blx [[REG]]
8; CHECK:       [[LABEL]]:
9; CHECK-NEXT:  .long   bar
10  call void @bar()
11  ret void
12}
13
14define void @execute_only_fn() #1 {
15; CHECK-LABEL: execute_only_fn:
16; CHECK:       movs    [[REG0:r[0-9]+]], :upper8_15:bar
17; CHECK-NEXT:  lsls    [[REG0]], [[REG0]], #8
18; CHECK-NEXT:  adds    [[REG0]], :upper0_7:bar
19; CHECK-NEXT:  lsls    [[REG0]], [[REG0]], #8
20; CHECK-NEXT:  adds    [[REG0]], :lower8_15:bar
21; CHECK-NEXT:  lsls    [[REG0]], [[REG0]], #8
22; CHECK-NEXT:  adds    [[REG0]], :lower0_7:bar
23; CHECK-NEXT:  blx     [[REG0]]
24; CHECK-NOT:   ldr
25
26entry:
27  call void @bar()
28  ret void
29}
30
31attributes #0 = { noinline optnone "target-features"="+thumb-mode,+long-calls" }
32attributes #1 = { noinline optnone "target-features"="+execute-only,+thumb-mode,+long-calls" }
33
34declare dso_local void @bar()
35