gcc/testsuite/gcc.dg/tree-ssa/ldist-rawmemchr-1.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 no 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 #define test(T, pattern)   \
  18 __attribute__((noinline))  \
  19 T *test_##T (T *p)         \
  20 {                          \
  21   while (*p != (T)pattern) \
  22     ++p;                   \
  23   return p;                \
  24 }
  25
  26 test (uint8_t,  0xab)
  27 test (uint16_t, 0xabcd)
  28 test (uint32_t, 0xabcdef15)
  29
  30 test (int8_t,  0xab)
  31 test (int16_t, 0xabcd)
  32 test (int32_t, 0xabcdef15)
  33
  34 #define run(T, pattern, i)      \
  35 {                               \
  36 T *q = p;                       \
  37 q[i] = (T)pattern;              \
  38 assert (test_##T (p) == &q[i]); \
  39 q[i] = 0;                       \
  40 }
  41
  42 int main(void)
  43 {
  44   void *p = malloc (1024);
  45   assert (p);
  46   memset (p, 0, 1024);
  47
  48   run (uint8_t, 0xab, 0);
  49   run (uint8_t, 0xab, 1);
  50   run (uint8_t, 0xab, 13);
  51
  52   run (uint16_t, 0xabcd, 0);
  53   run (uint16_t, 0xabcd, 1);
  54   run (uint16_t, 0xabcd, 13);
  55
  56   run (uint32_t, 0xabcdef15, 0);
  57   run (uint32_t, 0xabcdef15, 1);
  58   run (uint32_t, 0xabcdef15, 13);
  59
  60   run (int8_t, 0xab, 0);
  61   run (int8_t, 0xab, 1);
  62   run (int8_t, 0xab, 13);
  63
  64   run (int16_t, 0xabcd, 0);
  65   run (int16_t, 0xabcd, 1);
  66   run (int16_t, 0xabcd, 13);
  67
  68   run (int32_t, 0xabcdef15, 0);
  69   run (int32_t, 0xabcdef15, 1);
  70   run (int32_t, 0xabcdef15, 13);
  71
  72   return 0;
  73 }