1  /* { dg-do assemble } */
       2  /* { dg-skip-if "too much code for avr" { "avr-*-*" } } */
       3  /* { dg-skip-if "too much code for pdp11" { "pdp11-*-*" } } */
       4  /* { dg-skip-if "" { m32c-*-* } } */
       5  /* { dg-skip-if "jumps too far for eBPF" { bpf-*-* } } */
       6  /* { dg-timeout-factor 4.0 } */
       7  
       8  /* This testcase exposed two branch shortening bugs on powerpc.  */
       9  
      10  #define C(a,b) \
      11    if (a > b)  goto gt; \
      12    if (a < b)  goto lt;
      13  
      14  #define C4(x,b) C((x)[0], b) C((x)[1],b) C((x)[2],b) C((x)[3],b)
      15  #define C16(x,y) C4(x, (y)[0]) C4(x, (y)[1]) C4(x, (y)[2]) C4(x, (y)[3])
      16  
      17  #define C64(x,y) C16(x,y) C16(x+4,y) C16(x+8,y) C16(x+12,y)
      18  #define C256(x,y) C64(x,y) C64(x,y+4) C64(x,y+8) C64(x,y+12)
      19  
      20  #define C1024(x,y) C256(x,y) C256(x+16,y) C256(x+32,y) C256(x+48,y)
      21  #define C4096(x,y) C1024(x,y) C1024(x,y+16) C1024(x,y+32) C1024(x,y+48)
      22  
      23  unsigned foo(int x[64], int y[64])
      24  {
      25    C4096(x,y);
      26    
      27    return 0x01234567;
      28   gt:
      29    return 0x12345678;
      30   lt:
      31    return 0xF0123456;
      32  }
      33