llvm/test/CodeGen/Thumb2/thumb2-execute-only-long-calls.ll

   1 ; RUN: llc < %s -mtriple=thumbv7em-arm-none-eabi -relocation-model=static | FileCheck %s -check-prefixes=CHECK,STATIC
   2 ; RUN: llc < %s -mtriple=thumbv7em-arm-none-eabi -relocation-model=rwpi | FileCheck %s -check-prefixes=CHECK,RWPI
   3
   4 define void @fn() #0 {
   5 entry:
   6 ; CHECK-LABEL: fn:
   7 ; CHECK:       ldr [[REG:r[0-9]+]], .LCPI0_0
   8 ; CHECK-NEXT:  blx [[REG]]
   9 ; CHECK:       .LCPI0_0:
  10 ; CHECK-NEXT:  .long   bar
  11   call void @bar()
  12   ret void
  13 }
  14
  15 define void @execute_only_fn() #1 {
  16 ; STATIC-LABEL: execute_only_fn:
  17 ; STATIC:       movw    [[REG0:r[0-9]+]], :lower16:bar
  18 ; STATIC-NEXT:  movt    [[REG0]], :upper16:bar
  19 ; STATIC-NEXT:  blx     [[REG0]]
  20 ; STATIC-NOT:   .LCPI0_0:
  21
  22 ; RWPI-LABEL: execute_only_fn:
  23 ; RWPI:       movw    [[REG0:r[0-9]+]], :lower16:bar
  24 ; RWPI-NEXT:  movt    [[REG0]], :upper16:bar
  25 ; RWPI-NEXT:  blx     [[REG0]]
  26 ; RWPI-NOT:   .LCPI1_0:
  27 entry:
  28   call void @bar()
  29   ret void
  30 }
  31
  32 attributes #0 = { noinline optnone "target-features"="+thumb-mode,+long-calls" }
  33 attributes #1 = { noinline optnone "target-features"="+execute-only,+thumb-mode,+long-calls" }
  34
  35 declare dso_local void @bar()