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riscv-gcc-1
Commit eb5da24b by Richard Henderson Committed by Richard Henderson
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* gcc.c-torture/execute/loop-2e.c: Rewrite for 64 bit and no mmap. 

From-SVN: r55724
parent 8ad8135a
Showing with 30 additions and 47 deletions
gcc/testsuite/ChangeLog
2002-07-24 Richard Henderson <rth@redhat.com>
* gcc.c-torture/execute/loop-2e.c: Rewrite for 64 bit and no mmap.
2002-07-24 Gabriel Dos Reis <gdr@nerim.net> 2002-07-24 Gabriel Dos Reis <gdr@nerim.net>
* g++.dg/ext/alignof1.C (main): Return 0 for success. * g++.dg/ext/alignof1.C (main): Return 0 for success.
......
gcc/testsuite/gcc.c-torture/execute/loop-2e.c
#include <limits.h> void f (int *p, int **q)
#ifdef __unix__ /* ??? Is that good enough? */
#include <sys/types.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <fcntl.h>
#ifndef MAP_ANON
#ifdef MAP_ANONYMOUS
#define MAP_ANON MAP_ANONYMOUS
#else
#define MAP_ANON MAP_FILE
#endif
#endif
#ifndef MAP_FILE
#define MAP_FILE 0
#endif
#ifndef MAP_FIXED
#define MAP_FIXED 0
#endif
#endif
#define MAP_START (void *)0x7fff8000
#define MAP_LEN 0x10000
#define OFFSET (MAP_LEN/2 - 2 * sizeof (int));
f (int *p, int **q)
{ {
int i; int i;
for (i = 0; i < 40; i++) for (i = 0; i < 40; i++)
...@@ -34,27 +7,33 @@ f (int *p, int **q) ...@@ -34,27 +7,33 @@ f (int *p, int **q)
} }
} }
main () int main ()
{ {
#ifdef MAP_ANON
void *p; void *p;
int *q[40]; int *q[40];
int dev_zero; __SIZE_TYPE__ start;
dev_zero = open ("/dev/zero", O_RDONLY); /* Find the signed middle of the address space. */
/* -1 is OK when we have MAP_ANON; else mmap will flag an error. */ if (sizeof(start) == sizeof(int))
if (INT_MAX != 0x7fffffffL || sizeof (char *) != sizeof (int)) start = (__SIZE_TYPE__) __INT_MAX__;
exit (0); else if (sizeof(start) == sizeof(long))
p = mmap (MAP_START, MAP_LEN, PROT_READ|PROT_WRITE, start = (__SIZE_TYPE__) __LONG_MAX__;
MAP_ANON|MAP_FIXED|MAP_PRIVATE, dev_zero, 0); else if (sizeof(start) == sizeof(long long))
if (p != (void *)-1) start = (__SIZE_TYPE__) __LONG_LONG_MAX__;
{ else
p = (char *)p + OFFSET; return 0;
q[39] = 0;
f (p, q); /* Arbitrarily align the pointer. */
if (q[39] != (int *)p + 39) start &= -32;
abort ();
} /* Pretend that's good enough to start address arithmetic. */
#endif p = (void *)start;
exit (0);
/* Verify that GIV replacement computes the correct results. */
q[39] = 0;
f (p, q);
if (q[39] != (int *)p + 39)
abort ();
return 0;
} }
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