lld/test/MachO/icf-undef.s

   1 # REQUIRES: x86
   2 # RUN: rm -rf %t; split-file %s %t
   3
   4 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin19.0.0 %t/test.s -o %t/test.o
   5
   6 ## Check that we correctly dedup sections that reference dynamic-lookup symbols.
   7 # RUN: %lld -lSystem -dylib --icf=all -undefined dynamic_lookup -o %t/test %t/test.o
   8 # RUN: llvm-objdump --macho --syms %t/test | FileCheck %s
   9
  10 ## Check that we still raise an error when using regular undefined symbol
  11 ## treatment.
  12 # RUN: not %lld -lSystem -dylib --icf=all -o /dev/null %t/test.o 2>&1 | \
  13 # RUN:   FileCheck %s --check-prefix=ERR
  14
  15 # CHECK: [[#%x,ADDR:]] l    F __TEXT,__text _foo
  16 # CHECK: [[#ADDR]]     l    F __TEXT,__text _bar
  17
  18 # ERR: error: undefined symbol: _undef
  19
  20 #--- test.s
  21
  22 .subsections_via_symbols
  23
  24 _foo:
  25   callq _undef + 1
  26
  27 _bar:
  28   callq _undef + 1