none/tests/x86/ssse3_misaligned.c

   1
   2 #include "tests/malloc.h"
   3 #include <stdio.h>
   4 #include <stdlib.h>
   5 #include <string.h>
   6 #include <assert.h>
   7 #include <signal.h>
   8
   9 void maybe_fault ( int delta )
  10 {
  11    char* x = memalign16(32);
  12    memset(x, 0, 32);
  13    __asm__ __volatile__(
  14       "pabsb (%0),%%xmm7"
  15       : /*out*/ : /*in*/ "r"(x+delta) : /*trash*/"xmm7" );
  16    free(x);
  17 }
  18
  19 void handler ( int signo )
  20 {
  21    assert(signo == SIGSEGV);
  22    fprintf(stderr, "three\n");
  23    exit(0);
  24 }
  25
  26 int main ( void )
  27 {
  28    signal(SIGSEGV, handler);
  29    fprintf(stderr, "you should see: \"one\\ntwo\\nthree\\n\"\n");
  30    fprintf(stderr, "one\n");
  31    maybe_fault(0);
  32    fprintf(stderr, "two\n");
  33    maybe_fault(5);
  34    fprintf(stderr, "test failed! you shouldn't see this\n");
  35    return 0;
  36 }