memcheck/tests/amd64/xor-undef-amd64.c

   1
   2 #include <stdio.h>
   3 #include <stdlib.h>
   4 #include <assert.h>
   5
   6 #define JZ_NEXT ".byte 0x74,0x00"  /* jz the-next-insn */
   7
   8 int main ( void )
   9 {
  10    char* junk = malloc(48);
  11    assert(junk);
  12
  13
  14    /* --- INTEGER --- */
  15
  16    printf("\nComplain int64\n");
  17    __asm__ __volatile__(
  18       "movq   0(%0), %%rax\n\t"
  19       "movq   8(%0), %%r8\n\t"
  20       "xorq   %%r8, %%rax\n\t"
  21       JZ_NEXT
  22       : : "r"(junk) : "r8", "rax", "cc"
  23    );
  24
  25    printf("\nNo complain int64\n");
  26    __asm__ __volatile__(
  27       "movq   0(%0), %%rax\n\t"
  28       "movq   8(%0), %%r8\n\t"
  29       "xorq   %%rax, %%rax\n\t"
  30       JZ_NEXT
  31       : : "r"(junk) : "r8", "rax", "cc"
  32    );
  33
  34
  35    /* --- MMX --- */
  36
  37    printf("\nComplain mmx\n");
  38    __asm__ __volatile__(
  39       "emms\n\t"
  40       "movq   0(%0), %%mm0\n\t"
  41       "movq   8(%0), %%mm7\n\t"
  42       "pxor   %%mm7, %%mm0\n\t"
  43       "movq   %%mm0, 16(%0)\n\t"
  44       "cmpq   $0,16(%0)\n\t"
  45       JZ_NEXT
  46       : : "r"(junk) : "mm7", "mm0", "cc", "memory"
  47    );
  48
  49    printf("\nNo complain mmx\n");
  50    __asm__ __volatile__(
  51       "emms\n\t"
  52       "movq   0(%0), %%mm0\n\t"
  53       "movq   8(%0), %%mm7\n\t"
  54       "pxor   %%mm0, %%mm0\n\t"
  55       "movq   %%mm0, 16(%0)\n\t"
  56       "cmpq   $0,16(%0)\n\t"
  57       JZ_NEXT
  58       : : "r"(junk) : "mm7", "mm0", "cc", "memory"
  59    );
  60
  61
  62    /* --- SSE1 --- */
  63
  64    printf("\nComplain sse xorps\n");
  65    __asm__ __volatile__(
  66       "movups   0(%0),  %%xmm0\n\t"
  67       "movups   16(%0), %%xmm8\n\t"
  68       "xorps    %%xmm8, %%xmm0\n\t"
  69       "movups   %%xmm0, 32(%0)\n\t"
  70       "movq 32(%0), %%rax\n\t"
  71       "addq 40(%0), %%rax\n\t"
  72       JZ_NEXT
  73       : : "r"(junk) : "rax", "xmm8", "xmm0", "cc", "memory"
  74    );
  75
  76    printf("\nNo complain sse xorps\n");
  77    __asm__ __volatile__(
  78       "movups   0(%0),  %%xmm0\n\t"
  79       "movups   16(%0), %%xmm8\n\t"
  80       "xorps    %%xmm0, %%xmm0\n\t"
  81       "movups   %%xmm0, 32(%0)\n\t"
  82       "movq 32(%0), %%rax\n\t"
  83       "addq 40(%0), %%rax\n\t"
  84       JZ_NEXT
  85       : : "r"(junk) : "rax", "xmm8", "xmm0", "cc", "memory"
  86    );
  87
  88
  89    /* --- SSE2 --- */
  90
  91    printf("\nComplain sse2 pxor\n");
  92    __asm__ __volatile__(
  93       "movups   0(%0),  %%xmm0\n\t"
  94       "movups   16(%0), %%xmm8\n\t"
  95       "pxor     %%xmm8, %%xmm0\n\t"
  96       "movups   %%xmm0, 32(%0)\n\t"
  97       "movq 32(%0), %%rax\n\t"
  98       "addq 40(%0), %%rax\n\t"
  99       JZ_NEXT
 100       : : "r"(junk) : "rax", "xmm8", "xmm0", "cc", "memory"
 101    );
 102
 103    printf("\nNo complain sse2 pxor\n");
 104    __asm__ __volatile__(
 105       "movups   0(%0),  %%xmm0\n\t"
 106       "movups   16(%0), %%xmm8\n\t"
 107       "pxor     %%xmm0, %%xmm0\n\t"
 108       "movups   %%xmm0, 32(%0)\n\t"
 109       "movq 32(%0), %%rax\n\t"
 110       "addq 40(%0), %%rax\n\t"
 111       JZ_NEXT
 112       : : "r"(junk) : "rax", "xmm8", "xmm0", "cc", "memory"
 113    );
 114
 115
 116    printf("\nComplain sse2 xorpd\n");
 117    __asm__ __volatile__(
 118       "movups   0(%0),  %%xmm0\n\t"
 119       "movups   16(%0), %%xmm8\n\t"
 120       "xorpd    %%xmm8, %%xmm0\n\t"
 121       "movups   %%xmm0, 32(%0)\n\t"
 122       "movq 32(%0), %%rax\n\t"
 123       "addq 40(%0), %%rax\n\t"
 124       JZ_NEXT
 125       : : "r"(junk) : "rax", "xmm8", "xmm0", "cc", "memory"
 126    );
 127
 128    printf("\nNo complain sse2 xorpd\n");
 129    __asm__ __volatile__(
 130       "movups   0(%0),  %%xmm0\n\t"
 131       "movups   16(%0), %%xmm8\n\t"
 132       "xorpd    %%xmm0, %%xmm0\n\t"
 133       "movups   %%xmm0, 32(%0)\n\t"
 134       "movq 32(%0), %%rax\n\t"
 135       "addq 40(%0), %%rax\n\t"
 136       JZ_NEXT
 137       : : "r"(junk) : "rax", "xmm8", "xmm0", "cc", "memory"
 138    );
 139
 140
 141    free(junk);
 142    return 0;
 143 }