bolt/test/AArch64/internal-call.s

   1 ## Test that llvm-bolt detects internal calls and marks the containing function
   2 ## as non-simple.
   3
   4 # RUN: llvm-mc -filetype=obj -triple aarch64-unknown-unknown %s -o %t.o
   5 # RUN: %clang %cflags %t.o -o %t.exe -Wl,-q -static
   6 # RUN: llvm-bolt %t.exe -o %t.null --print-all 2>&1 | FileCheck %s
   7
   8 # CHECK: Binary Function "_start" after building cfg
   9 # CHECK: internal call detected in function _start
  10 # CHECK-NOT: Binary Function "_start" after validate-internal-calls
  11
  12         .text
  13   .globl _start
  14   .type _start, %function
  15 _start:
  16         .cfi_startproc
  17 .LBB00:
  18         mov     x11, #0x1fff
  19         cmp     x1, x11
  20         b.hi    .Ltmp1
  21
  22 .entry1:
  23         movi    v4.16b, #0x0
  24         movi    v5.16b, #0x0
  25         subs    x1, x1, #0x8
  26         b.lo    .Ltmp2
  27
  28 .entry2:
  29         ld1     { v2.2d, v3.2d }, [x0], #32
  30         ld1     { v0.2d, v1.2d }, [x0], #32
  31
  32 .Ltmp2:
  33         uaddlp  v4.4s, v4.8h
  34         uaddlp  v4.2d, v4.4s
  35         mov     x0, v4.d[0]
  36         mov     x1, v4.d[1]
  37         add     x0, x0, x1
  38         ret     x30
  39
  40 .Ltmp1:
  41         mov     x8, x30
  42
  43 .Lloop:
  44         add     x5, x0, x9
  45         mov     x1, #0xface
  46         movi    v4.16b, #0x0
  47         movi    v5.16b, #0x0
  48         bl      .entry2
  49         add     x4, x4, x0
  50         mov     x0, x5
  51         sub     x7, x7, x10
  52         cmp     x7, x11
  53         b.hi    .Lloop
  54
  55         mov     x1, x7
  56         bl      .entry1
  57         add     x0, x4, x0
  58         mov     x30, x8
  59         ret     x30
  60
  61         .cfi_endproc
  62 .size _start, .-_start
  63
  64 ## Force relocation mode.
  65   .reloc 0, R_AARCH64_NONE