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[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [testsuite/] [gcc.target/] [i386/] [asm-2.c] - Blame information for rev 867

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Line No. Rev Author Line
1 149 jeremybenn
/* PR opt/13862 */
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/* { dg-do compile { target i?86-*-* x86_64-*-* } } */
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/* { dg-require-effective-target ilp32 } */
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/* { dg-options "-O" } */
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typedef struct _fame_syntax_t_ {
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} fame_syntax_t;
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typedef struct _fame_bitbuffer_t_
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{
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  unsigned char * base;
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  unsigned char * data;
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  unsigned long shift;
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} fame_bitbuffer_t;
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#define fast_bitbuffer_write(data, shift, c, l)                         \
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{                                                                       \
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  int d;                                                                \
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                                                                        \
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  asm("add %1, %%ecx\n"            /* ecx = shift + length */           \
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      "shrd %%cl, %2, %3\n"        /* adjust code to fit in */          \
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      "shr %%cl, %2\n"             /* adjust code to fit in */          \
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      "mov %%ecx, %1\n"            /* shift += length */                \
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      "bswap %2\n"                 /* reverse byte order of code */     \
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      "shr $5, %%ecx\n"            /* get dword increment */            \
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      "or %2, (%0)\n"              /* put first 32 bits */              \
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      "bswap %3\n"                 /* reverse byte order of code */     \
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      "lea   (%0, %%ecx, 4), %0\n" /* data += (ecx>32) */               \
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      "andl $31, %1\n"             /* mask shift */                     \
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      "orl %3, (%0)\n"             /* put last 32 bits */               \
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      : "=r"(data), "=r"(shift), "=a"(d), "=d"(d), "=c"(d)              \
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      : "0"(data), "1"(shift), "2"((unsigned long) c), "3"(0),            \
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        "c"((unsigned long) l)                                          \
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      : "memory");                                                      \
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}
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#define bitbuffer_write(bb, c, l) \
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  fast_bitbuffer_write((bb)->data, (bb)->shift, c, l)
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typedef enum { frame_type_I, frame_type_P } frame_type_t;
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typedef struct _fame_syntax_mpeg1_t_ {
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  fame_bitbuffer_t buffer;
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  frame_type_t frame_type;
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} fame_syntax_mpeg1_t;
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#define FAME_SYNTAX_MPEG1(x) ((fame_syntax_mpeg1_t *) x)
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void mpeg1_start_picture(fame_syntax_t *syntax)
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{
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  fame_syntax_mpeg1_t *syntax_mpeg1 = FAME_SYNTAX_MPEG1(syntax);
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  bitbuffer_write(&syntax_mpeg1->buffer, 0xFFFF, 16);
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  switch(syntax_mpeg1->frame_type) {
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    case frame_type_I:
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      bitbuffer_write(&syntax_mpeg1->buffer, 0, 1);
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    break;
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    case frame_type_P:
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      bitbuffer_write(&syntax_mpeg1->buffer, 0, 1);
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    break;
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  }
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}

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