Viewing file:  ldist-rawmemchr-2.c (2.12 KB) -rw-r--r--
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/* { dg-do run { target s390x-*-* } } */
/* { dg-options "-O2 -ftree-loop-distribution -fdump-tree-ldist-details" } */
/* { dg-additional-options "-march=z13 -mzarch" { target s390x-*-* } } */
/* { dg-final { scan-tree-dump-times "generated rawmemchrQI" 2 "ldist" { target s390x-*-* } } } */
/* { dg-final { scan-tree-dump-times "generated rawmemchrHI" 2 "ldist" { target s390x-*-* } } } */
/* { dg-final { scan-tree-dump-times "generated rawmemchrSI" 2 "ldist" { target s390x-*-* } } } */
/* Rawmemchr pattern: reduction stmt and store */
#include <stdint.h>
#include <assert.h>
typedef __SIZE_TYPE__ size_t;
extern void* malloc (size_t);
extern void* memset (void*, int, size_t);
uint8_t *p_uint8_t;
uint16_t *p_uint16_t;
uint32_t *p_uint32_t;
int8_t *p_int8_t;
int16_t *p_int16_t;
int32_t *p_int32_t;
#define test(T, pattern) \
__attribute__((noinline)) \
T *test_##T (void) \
{ \
while (*p_##T != pattern) \
++p_##T; \
return p_##T; \
}
test (uint8_t, 0xab)
test (uint16_t, 0xabcd)
test (uint32_t, 0xabcdef15)
test (int8_t, (int8_t)0xab)
test (int16_t, (int16_t)0xabcd)
test (int32_t, (int32_t)0xabcdef15)
#define run(T, pattern, i) \
{ \
T *q = p; \
q[i] = pattern; \
p_##T = p; \
T *r = test_##T (); \
assert (r == p_##T); \
assert (r == &q[i]); \
q[i] = 0; \
}
int main(void)
{
void *p = malloc (1024);
assert (p);
memset (p, '\0', 1024);
run (uint8_t, 0xab, 0);
run (uint8_t, 0xab, 1);
run (uint8_t, 0xab, 13);
run (uint16_t, 0xabcd, 0);
run (uint16_t, 0xabcd, 1);
run (uint16_t, 0xabcd, 13);
run (uint32_t, 0xabcdef15, 0);
run (uint32_t, 0xabcdef15, 1);
run (uint32_t, 0xabcdef15, 13);
run (int8_t, (int8_t)0xab, 0);
run (int8_t, (int8_t)0xab, 1);
run (int8_t, (int8_t)0xab, 13);
run (int16_t, (int16_t)0xabcd, 0);
run (int16_t, (int16_t)0xabcd, 1);
run (int16_t, (int16_t)0xabcd, 13);
run (int32_t, (int32_t)0xabcdef15, 0);
run (int32_t, (int32_t)0xabcdef15, 1);
run (int32_t, (int32_t)0xabcdef15, 13);
return 0;
}
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