llvm/test/ExecutionEngine/JITLink/x86-64/LocalDependencyPropagation.s

   1 # REQUIRES: asserts
   2 # RUN: llvm-mc -triple=x86_64-apple-macosx10.9 -filetype=obj -o %t %s
   3 # RUN: llvm-jitlink -num-threads=0 -debug-only=orc -noexec \
   4 # RUN:              -abs _external_func=0x1 -entry=_foo %t 2>&1 \
   5 # RUN:              | FileCheck %s
   6 #
   7 # Check that simplification eliminates dependencies on symbols in this unit,
   8 # and correctly propagates dependencies on symbols outside the unit (including
   9 # via locally scoped symbols). In this test _baz depends on _foo indirectly via
  10 # the local symbol _bar. Initially we expect _baz to depend on _foo, and _foo
  11 # on _external_func, after simplification we expect both to depend on
  12 # _external_func only.
  13
  14 # CHECK: In main emitting {{.*}}_foo{{.*}}
  15 # CHECK-NEXT: Initial dependencies:
  16 # CHECK-DAG: Symbols: { _foo }, Dependencies: { (main, { _external_func }) }
  17 # CHECK-DAG: Symbols: { _baz }, Dependencies: { (main, { _foo }) }
  18 # CHECK: Simplified dependencies:
  19 # CHECK-DAG: Symbols: { _foo }, Dependencies: { (main, { _external_func }) }
  20 # CHECK-DAG: Symbols: { _baz }, Dependencies: { (main, { _external_func }) }
  21
  22         .section        __TEXT,__text,regular,pure_instructions
  23
  24         .globl  _foo
  25         .p2align        4, 0x90
  26 _foo:
  27         jmp     _external_func
  28
  29         .p2align        4, 0x90
  30 _bar:
  31
  32         jmp     _foo
  33
  34         .globl  _baz
  35         .p2align        4, 0x90
  36 _baz:
  37
  38         jmp     _bar
  39
  40 .subsections_via_symbols