gcc/testsuite/gcc.dg/pr38245-3.c

   1 /* PR rtl-optimization/38245 */
   2 /* { dg-do run } */
   3 /* { dg-additional-sources "pr38245-4.c" } */
   4 /* { dg-options "-O2" } */
   5
   6 #include "pr38245-3.h"
   7
   8 extern void abort (void);
   9
  10 struct A { int i, j; union { short s[4]; long long l; }; char pad[512]; } a;
  11 int globv = 6;
  12
  13 void __attribute__((noinline))
  14 f1 (void)
  15 {
  16   a.s[2] = b1 (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21,
  17                6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21);
  18   a.l = 6;
  19 }
  20
  21 void __attribute__((noinline))
  22 f2 (void)
  23 {
  24   a.s[2] = b2 (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21,
  25                6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21);
  26   a.l = 6;
  27 }
  28
  29 void __attribute__((noinline))
  30 f3 (void)
  31 {
  32   struct B b = { 30, 31, { 32, 33 } };
  33   a.s[2] = b3 (6, 7, 8, 9, 10, 11, 12, b, 14, b, 16, b, 18, 19, 20, 21,
  34                6, b, 8, b, 10, 11, 12, 13, 14, b, 16, b, 18, 19, 20, 21);
  35   a.l = 6;
  36 }
  37
  38 void __attribute__((noinline))
  39 f4 (void)
  40 {
  41   struct B b = { 30, 31, { 32, 33 } };
  42   a.s[2] = b4 (6, 7, 8, 9, 10, 11, 12, b, 14, b, 16, b, 18, 19, 20, 21,
  43                6, b, 8, b, 10, 11, 12, 13, 14, b, 16, b, 18, 19, 20, 21);
  44   a.l = 6;
  45 }
  46
  47 void __attribute__((noinline))
  48 f5 (void)
  49 {
  50   a.s[2] = b5 (6.0, 7, 8, 9, 10, 11, 21.0, 22.0, 23.0);
  51   a.l = 6;
  52 }
  53
  54 void __attribute__((noinline))
  55 f6 (void)
  56 {
  57   a.s[2] = b6 (6.0, 7, 8, 9, 10, 11, 21.0, 22.0, 23.0);
  58   a.l = 6;
  59 }
  60
  61 void __attribute__((noinline))
  62 f7 (void)
  63 {
  64   a.s[2] = b7 (6, 7);
  65   a.l = 6;
  66 }
  67
  68 void __attribute__((noinline))
  69 f8 (void)
  70 {
  71   a.s[2] = b8 (6, 7);
  72   a.l = 6;
  73 }
  74
  75 void __attribute__((noinline))
  76 f9 (void)
  77 {
  78   a.s[2] = b9 (6, 7, 8, 9, 10, 11, 12);
  79   a.l = 6;
  80 }
  81
  82 void __attribute__((noinline))
  83 f10 (void)
  84 {
  85   a.s[2] = b10 (6, 7, 8, 9, 10, 11, 12);
  86   a.l = 6;
  87 }
  88
  89 int
  90 main (void)
  91 {
  92   char buf[256];
  93   int i;
  94   for (i = 0; i < (int) sizeof buf; i++)
  95     buf[i] = i;
  96   asm volatile ("" : : "r" (buf) : "memory");
  97   f1 ();
  98   f2 ();
  99   f3 ();
 100   f4 ();
 101   f5 ();
 102   f6 ();
 103   f7 ();
 104   f8 ();
 105   f9 ();
 106   f10 ();
 107   asm volatile ("" : : "r" (buf) : "memory");
 108   for (i = 0; i < (int) sizeof buf; i++)
 109     if (buf[i] != (char) i)
 110       abort ();
 111   return 0;
 112 }