lld/test/ELF/icf9.s

   1 # REQUIRES: x86
   2
   3 ### Make sure that we do not merge data.
   4 # RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
   5 # RUN: ld.lld %t -o %t2 --icf=all --print-icf-sections 2>&1 | FileCheck -allow-empty %s
   6 # RUN: llvm-readelf -S -W %t2 | FileCheck --check-prefix=SEC %s
   7
   8 # SEC:  .rodata      PROGBITS  0000000000200120 000120 000002 00 A 0 0 1
   9
  10 # CHECK-NOT: selected section {{.*}}:(.rodata.d1)
  11 # CHECK-NOT: selected section {{.*}}:(.rodata.d2)
  12
  13 # We do merge rodata if passed --icf-data
  14 # RUN: ld.lld %t -o %t2 --icf=all --print-icf-sections --ignore-data-address-equality | \
  15 # RUN:   FileCheck --check-prefix=DATA %s
  16 # RUN: llvm-readelf -S -W %t2 | FileCheck --check-prefix=DATA-SEC %s
  17
  18 # DATA: selected section {{.*}}:(.rodata.d1)
  19 # DATA:   removing identical section {{.*}}:(.rodata.d2)
  20
  21 # DATA-SEC:  .rodata      PROGBITS  0000000000200120 000120 000001 00 A 0 0 1
  22
  23 .globl _start, d1, d2
  24 _start:
  25   ret
  26
  27 .section .rodata.d1, "a"
  28 d1:
  29   .byte 1
  30
  31 .section .rodata.d2, "a"
  32 d2:
  33   .byte 1