binutils-gdb/gnulib/import/count-one-bits.c

#include <config.h>
#define COUNT_ONE_BITS_INLINE _GL_EXTERN_INLINE
#include "count-one-bits.h"

#if 1500 <= _MSC_VER && (defined _M_IX86 || defined _M_X64)
int popcount_support = -1;
#endif
gnulib: import count-one-bits module and use it For a fix I intend to submit, I would need a function that counts the number of set bits in a word. There is __builtin_popcount that is supported by gcc and clang, but there is also a gnulib module that wraps that and provides a fallback for other compilers, so I think it would be good to use it. I also noticed that there is a bitcount function in arch/arm.c, so I thought that as a first step I would replace that one with the gnulib count-one-bits module. This is what this patch does. The gnulib module provides multiple functions, with various parameter length (unsigned int, unsigned long int, unsigned long long int), I chose the one that made sense for each call site based on the argument type. gnulib/ChangeLog: * update-gnulib.sh (IMPORTED_GNULIB_MODULES): Import count-one-bits module. * configure: Re-generate. * aclocal.m4: Re-generate. * Makefile.in: Re-generate. * import/count-one-bits.c: New file. * import/count-one-bits.h: New file. * import/Makefile.am: Re-generate. * import/Makefile.in: Re-generate. * import/m4/gnulib-cache.m4: Re-generate. * import/m4/gnulib-comp.m4: Re-generate. * import/m4/count-one-bits.m4: New file. gdb/ChangeLog: * arm-tdep.c: Include count-one-bits.h. (cleanup_block_store_pc): Use count_one_bits. (cleanup_block_load_pc): Use count_one_bits. (arm_copy_block_xfer): Use count_one_bits. (thumb2_copy_block_xfer): Use count_one_bits. (thumb_copy_pop_pc_16bit): Use count_one_bits. * arch/arm-get-next-pcs.c: Include count-one-bits.h. (thumb_get_next_pcs_raw): Use count_one_bits. (arm_get_next_pcs_raw): Use count_one_bits_l. * arch/arm.c (bitcount): Remove. * arch/arm.h (bitcount): Remove. 2020-02-14 20:41:07 +01:00			`#include <config.h>`
			`#define COUNT_ONE_BITS_INLINE _GL_EXTERN_INLINE`
			`#include "count-one-bits.h"`

			`#if 1500 <= _MSC_VER && (defined _M_IX86 \|\| defined _M_X64)`
			`int popcount_support = -1;`
			`#endif`