gcc/testsuite/gcc.dg/tree-ssa/ldist-rawmemchr-2.c

   1 /* { dg-do run { target { { s390x-*-* } || { riscv_v } } } } */
   2 /* { dg-options "-O2 -ftree-loop-distribution -fdump-tree-ldist-details" } */
   3 /* { dg-additional-options "-march=z13 -mzarch" { target s390x-*-* } } */
   4 /* { dg-final { scan-tree-dump-times "generated rawmemchrQI" 2 "ldist" { target { { s390x-*-* } || { riscv_v } } } } } */
   5 /* { dg-final { scan-tree-dump-times "generated rawmemchrHI" 2 "ldist" { target { { s390x-*-* } || { riscv_v } } } } } */
   6 /* { dg-final { scan-tree-dump-times "generated rawmemchrSI" 2 "ldist" { target { { s390x-*-* } || { riscv_v } } } } } */
   7
   8 /* Rawmemchr pattern: reduction stmt and store */
   9
  10 #include <stdint.h>
  11 #include <assert.h>
  12
  13 typedef __SIZE_TYPE__ size_t;
  14 extern void* malloc (size_t);
  15 extern void* memset (void*, int, size_t);
  16
  17 uint8_t *p_uint8_t;
  18 uint16_t *p_uint16_t;
  19 uint32_t *p_uint32_t;
  20
  21 int8_t *p_int8_t;
  22 int16_t *p_int16_t;
  23 int32_t *p_int32_t;
  24
  25 #define test(T, pattern)    \
  26 __attribute__((noinline))   \
  27 T *test_##T (void)          \
  28 {                           \
  29   while (*p_##T != pattern) \
  30     ++p_##T;                \
  31   return p_##T;             \
  32 }
  33
  34 test (uint8_t,  0xab)
  35 test (uint16_t, 0xabcd)
  36 test (uint32_t, 0xabcdef15)
  37
  38 test (int8_t,  (int8_t)0xab)
  39 test (int16_t, (int16_t)0xabcd)
  40 test (int32_t, (int32_t)0xabcdef15)
  41
  42 #define run(T, pattern, i) \
  43 {                          \
  44 T *q = p;                  \
  45 q[i] = pattern;            \
  46 p_##T = p;                 \
  47 T *r = test_##T ();        \
  48 assert (r == p_##T);       \
  49 assert (r == &q[i]);       \
  50 q[i] = 0;                  \
  51 }
  52
  53 int main(void)
  54 {
  55   void *p = malloc (1024);
  56   assert (p);
  57   memset (p, '\0', 1024);
  58
  59   run (uint8_t, 0xab, 0);
  60   run (uint8_t, 0xab, 1);
  61   run (uint8_t, 0xab, 13);
  62
  63   run (uint16_t, 0xabcd, 0);
  64   run (uint16_t, 0xabcd, 1);
  65   run (uint16_t, 0xabcd, 13);
  66
  67   run (uint32_t, 0xabcdef15, 0);
  68   run (uint32_t, 0xabcdef15, 1);
  69   run (uint32_t, 0xabcdef15, 13);
  70
  71   run (int8_t, (int8_t)0xab, 0);
  72   run (int8_t, (int8_t)0xab, 1);
  73   run (int8_t, (int8_t)0xab, 13);
  74
  75   run (int16_t, (int16_t)0xabcd, 0);
  76   run (int16_t, (int16_t)0xabcd, 1);
  77   run (int16_t, (int16_t)0xabcd, 13);
  78
  79   run (int32_t, (int32_t)0xabcdef15, 0);
  80   run (int32_t, (int32_t)0xabcdef15, 1);
  81   run (int32_t, (int32_t)0xabcdef15, 13);
  82
  83   return 0;
  84 }