вс, 15 февр. 2026 г., 22:23 Stefan de Konink via Cin < [email protected]>:
When compiling on AMD64 with -O3 -march=native I get on two systems using GCC 15 the following error.
In file included from video/slice.C:9: video/slice.C: In member function 'int zmpeg3_t::slice_decoder_t::add_block(int, int, int, int, int)': video/mmx.h:384:9: error: invalid 'asm': invalid constraints for operand 384 | __asm__ __volatile__ (#op " %%" #reg ", %0" \ | ^~~~~~~ video/mmx.h:406:33: note: in expansion of macro 'mmx_r2m' 406 | #define movq_r2m(reg, var) mmx_r2m(movq, reg, var) | ^~~~~~~ video/slice.C:208:7: note: in expansion of macro 'movq_r2m' 208 | movq_r2m(mm3,m_(rfp)); /* store rfp[0..7] */ | ^~~~~~~~
Stefan
Sorry, no idea what goes wrong here. Does it compile with -O2, -march=native ? May be aggressive optimizations broke some old calling conventions between asm and C? _______________________________________________
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