gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */
   3
   4 void func0 (void);
   5 void func1 (void);
   6 void func2 (void);
   7 void func3 (void);
   8 void func4 (void);
   9 void func4 (void);
  10 void func5 (void);
  11
  12 __attribute__ ((indirect_branch("thunk-extern")))
  13 void
  14 bar (int i)
  15 {
  16   switch (i)
  17     {
  18     default:
  19       func0 ();
  20       break;
  21     case 1:
  22       func1 ();
  23       break;
  24     case 2:
  25       func2 ();
  26       break;
  27     case 3:
  28       func3 ();
  29       break;
  30     case 4:
  31       func4 ();
  32       break;
  33     case 5:
  34       func5 ();
  35       break;
  36     }
  37 }
  38
  39 /* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target *-*-linux* } } } */
  40 /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
  41 /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
  42 /* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
  43 /* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */