1  /* Verify:
       2       * -fomit-frame-pointer -fsanitize=shadow-call-stack -fno-exceptions -ffixed-x18.
       3       * without outgoing.
       4       * total frame <= 512 but > 256.
       5       * callee-saved reg: x19, x20, x30.
       6       * optimized code should use "stp   x19, x20, [sp, -x]!" to save x19, x20 in prologue.
       7       * optimized code should use "str	x30, [sp " to save x30 in prologue.
       8       * optimized code should use "ldp	x19, x20, [sp], x" to retore x19, x20 in epilogue.
       9       * optimized code should not restore x30 in epilogue.  */
      10  
      11  /* { dg-do compile } */
      12  /* { dg-options "-O0 -fomit-frame-pointer -fsanitize=shadow-call-stack -fno-exceptions -ffixed-x18 --save-temps" } */
      13  
      14  int func1 (void)
      15  {
      16    unsigned char a[200];
      17    __asm__ ("":::"x19","x20","x30");
      18    return 0;
      19  }
      20  
      21  /* { dg-final { scan-assembler-times {stp\tx19, x20, \[sp, -[0-9]+\]!} 1 } } */
      22  /* { dg-final { scan-assembler-times {str\tx30, \[sp} 1 } } */
      23  /* { dg-final { scan-assembler {ldp\tx19, x20, \[sp\], [0-9]+} } } */
      24  /* { dg-final { scan-assembler-not {ld[r|p]\tx30, \[sp} } } */