bolt/test/X86/shrinkwrapping-popf.s

   1 ## This test checks that POPF will not crash our frame analysis pass
   2
   3 # REQUIRES: system-linux
   4
   5 # RUN: llvm-mc -filetype=obj -triple x86_64-unknown-unknown %s -o %t.o
   6 # RUN: link_fdata %s %t.o %t.fdata
   7 # RUN: llvm-strip --strip-unneeded %t.o
   8 # RUN: %clang %cflags %t.o -o %t.exe -Wl,-q -nostdlib
   9 # RUN: llvm-bolt %t.exe -o %t.out --data %t.fdata --frame-opt=all --lite=0
  10
  11
  12   .globl _start
  13 _start:
  14     .cfi_startproc
  15 # FDATA: 0 [unknown] 0 1 _start 0 0 6
  16     je a
  17 b:  jne _start
  18 # FDATA: 1 _start #b# 1 _start #c# 0 3
  19
  20 c:
  21     pushf
  22     push  %rbx
  23     push  %rbp
  24     addq $0x50, -0x30(%rbp)
  25     pop   %rbp
  26     pop   %rbx
  27     popf
  28
  29 ## This basic block is treated as having 0 execution count.
  30 a:
  31     ud2
  32     .cfi_endproc