bolt/test/AArch64/bf_min_alignment.s

   1 // This tests checks the minimum alignment of the AARch64 function
   2 // is equal to 4. Otherwise the jitlinker would fail to link the
   3 // binary since the size of the first function after reorder is not
   4 // not a multiple of 4.
   5
   6 # RUN: llvm-mc -filetype=obj -triple aarch64-unknown-unknown %s -o %t.o
   7 # RUN: %clang %cflags -fPIC -pie %t.o -o %t.exe -nostdlib -Wl,-q
   8 # RUN: link_fdata %s %t.o %t.fdata
   9 # RUN: llvm-bolt %t.exe -o %t.bolt --use-old-text=0 --lite=0 \
  10 # RUN:   --align-functions-max-bytes=1 \
  11 # RUN:   --data %t.fdata --reorder-functions=exec-count
  12 # RUN: llvm-nm -n %t.bolt | FileCheck %s
  13
  14 # CHECK: {{0|4|8|c}} T dummy
  15 # CHECK-NEXT: {{0|4|8|c}} T _start
  16
  17   .text
  18   .align 4
  19   .global _start
  20   .type _start, %function
  21 _start:
  22 # FDATA: 0 [unknown] 0 1 _start 0 0 1
  23    bl dymmy
  24    ret
  25   .size _start, .-_start
  26
  27   .global dummy
  28   .type dummy, %function
  29 dummy:
  30 # FDATA: 0 [unknown] 0 1 dummy 0 0 42
  31   adr x0, .Lci
  32   ret
  33 .Lci:
  34   .byte 0
  35   .size dummy, .-dummy