llvm/test/tools/llvm-objdump/multiple-symbols-mangling.s

   1 // This test demonstrates that the alphabetical-order tie breaking between
   2 // multiple symbols defined at the same address is based on the raw symbol
   3 // name, not its demangled version.
   4
   5 @ REQUIRES: arm-registered-target
   6
   7 @ RUN: llvm-mc -triple armv8a-unknown-linux -filetype=obj %s -o %t.o
   8
   9 // All the run lines below should generate some subset of this
  10 // display, with different parts included:
  11
  12 @ COMMON:        Disassembly of section .text:
  13 @
  14 @ RAW-B:         00000000 <_Z4bbbbv>:
  15 @ NICE-B:        00000000 <bbbb()>:
  16 @ NO-B-NOT:                bbbb
  17 @ A:             00000000 <aaaa>:
  18 @ COMMON:               0: e0800080      add     r0, r0, r0, lsl #1
  19 @ COMMON:               4: e12fff1e      bx      lr
  20
  21 // The default disassembly chooses just the alphabetically later symbol, which
  22 // is aaaa, because the leading _ on a mangled name sorts before lowercase
  23 // ASCII.
  24
  25 @ RUN: llvm-objdump --triple armv8a -d %t.o | FileCheck --check-prefixes=COMMON,NO-B,A %s
  26
  27 // With the --show-all-symbols option, bbbb is also shown, in its raw form.
  28
  29 @ RUN: llvm-objdump --triple armv8a --show-all-symbols -d %t.o | FileCheck --check-prefixes=COMMON,RAW-B,A %s
  30
  31 // With --demangle as well, bbbb is demangled, but that doesn't change its
  32 // place in the sorting order.
  33
  34 @ RUN: llvm-objdump --triple armv8a --show-all-symbols --demangle -d %t.o | FileCheck --check-prefixes=COMMON,NICE-B,A %s
  35
  36 .text
  37 .globl aaaa
  38 .globl _Z4bbbv
  39 aaaa:
  40 _Z4bbbbv:
  41         add r0, r0, r0, lsl #1
  42         bx lr