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Re: [PATCH][2/n] Always 64bit-HWI cleanups


On 05/23/14 05:45, Richard Biener wrote:

The following changes the configury to insist on [u]int64_t being
available and removes the very old __int64 case.  Autoconf doesn't
check for it, support came in via a big merge in Dec 2002, r60174,
and it was never used on the libcpp side until I fixed that with
the last patch of this series, so we couldn't have relied on it
at least since libcpp was introduced.

Both libcpp and vmsdbg.h now use [u]int64_t, switching HOST_WIDE_INT
to literally use int64_t has to be done with the grand renaming of
all users due to us using 'unsigned HOST_WIDE_INT'.

Btw, I couldn't find any "standard" way of writing
[u]int64_t literals (substitution for HOST_WIDE_INT_C) nor
one for printf formats (substitutions for HOST_WIDE_INT_PRINT
and friends).  I'll consider doing s/HOST_WIDE_INT/[U]INT64/
there if nobody comes up with a better plan.

Unfortunately any followup will be the whole renaming game
at once due to the 'unsigned' issue.  I'll make sure to
propose a hwint.h-only patch with a renaming guide for
review and expect the actual renaming to take place using
a script.

Bootstrap and regtest running on x86_64-unknown-linux-gnu, ok?

After this patch you may use [u]int64_t freely in host sources
(lto-plugin already does that - heh).

Thanks,
Richard.

2014-05-23  Richard Biener  <rguenther@suse.de>

	libcpp/
	* configure.ac: Remove long long and __int64 type checks,
	add check for uint64_t and fail if that wasn't found.
	* include/cpplib.h (cpp_num_part): Use uint64_t.
	* config.in: Regenerate.
	* configure: Likewise.

	gcc/
	* configure.ac: Drop __int64 type check.  Insist that we
	found uint64_t and int64_t.
	* hwint.h (HOST_BITS_PER___INT64): Remove.
	(HOST_BITS_PER_WIDE_INT): Define to 64 and remove
	__int64 case.
	(HOST_WIDE_INT_PRINT_*): Remove 32bit case.
	(HOST_WIDEST_INT*): Define to HOST_WIDE_INT*.
	(HOST_WIDEST_FAST_INT): Remove __int64 case.
	* vmsdbg.h (struct _DST_SRC_COMMAND): Use int64_t
	for dst_q_src_df_rms_cdt.
	* configure: Regenerate.
	* config.in: Likewise.
OK.

Jeff


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