/* PR opt/13862 */
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/* PR opt/13862 */
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/* { dg-do compile } */
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/* { dg-do compile } */
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/* { dg-require-effective-target ilp32 } */
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/* { dg-require-effective-target ilp32 } */
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/* { dg-options "-O" } */
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/* { dg-options "-O" } */
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typedef struct _fame_syntax_t_ {
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typedef struct _fame_syntax_t_ {
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} fame_syntax_t;
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} fame_syntax_t;
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typedef struct _fame_bitbuffer_t_
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typedef struct _fame_bitbuffer_t_
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{
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{
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unsigned char * base;
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unsigned char * base;
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unsigned char * data;
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unsigned char * data;
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unsigned long shift;
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unsigned long shift;
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} fame_bitbuffer_t;
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} fame_bitbuffer_t;
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#define fast_bitbuffer_write(data, shift, c, l) \
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#define fast_bitbuffer_write(data, shift, c, l) \
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{ \
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{ \
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int d; \
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int d; \
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\
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\
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asm("add %1, %%ecx\n" /* ecx = shift + length */ \
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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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"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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"shr %%cl, %2\n" /* adjust code to fit in */ \
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"mov %%ecx, %1\n" /* shift += length */ \
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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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"bswap %2\n" /* reverse byte order of code */ \
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"shr $5, %%ecx\n" /* get dword increment */ \
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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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"or %2, (%0)\n" /* put first 32 bits */ \
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"bswap %3\n" /* reverse byte order of code */ \
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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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"lea (%0, %%ecx, 4), %0\n" /* data += (ecx>32) */ \
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"andl $31, %1\n" /* mask shift */ \
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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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"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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: "=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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: "0"(data), "1"(shift), "2"((unsigned long) c), "3"(0), \
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"c"((unsigned long) l) \
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"c"((unsigned long) l) \
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: "memory"); \
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: "memory"); \
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}
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}
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#define bitbuffer_write(bb, c, l) \
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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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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 enum { frame_type_I, frame_type_P } frame_type_t;
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typedef struct _fame_syntax_mpeg1_t_ {
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typedef struct _fame_syntax_mpeg1_t_ {
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fame_bitbuffer_t buffer;
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fame_bitbuffer_t buffer;
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frame_type_t frame_type;
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frame_type_t frame_type;
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} fame_syntax_mpeg1_t;
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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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#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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void mpeg1_start_picture(fame_syntax_t *syntax)
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{
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{
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fame_syntax_mpeg1_t *syntax_mpeg1 = FAME_SYNTAX_MPEG1(syntax);
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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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bitbuffer_write(&syntax_mpeg1->buffer, 0xFFFF, 16);
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switch(syntax_mpeg1->frame_type) {
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switch(syntax_mpeg1->frame_type) {
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case frame_type_I:
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case frame_type_I:
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bitbuffer_write(&syntax_mpeg1->buffer, 0, 1);
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bitbuffer_write(&syntax_mpeg1->buffer, 0, 1);
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break;
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break;
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case frame_type_P:
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case frame_type_P:
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bitbuffer_write(&syntax_mpeg1->buffer, 0, 1);
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bitbuffer_write(&syntax_mpeg1->buffer, 0, 1);
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break;
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break;
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}
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}
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}
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}
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