re PR libfortran/32972 (performance of pack/unpack)

re PR libfortran/32972 (performance of pack/unpack)

2008-03-21  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR libfortran/32972
	* Makefile.am:  Add new variable, i_pack_c, containing
	pack_i1.c, pack_i2.c, pack_i4.c, pack_i8.c, pack_i16.c,
	pack_r4.c, pack_r8.c, pack_r10.c, pack_r16.c, pack_c4.c,
	pack_c8.c, pack_c10.c, pack_c16.c.
	Add m4/pack.m4 to m4_files.
	Add i_pack_c to gfor_built_src.
	Add rule to generate i_pack_c from m4/pack.m4.
	* Makefile.in:  Regenerated.
	* libgfortran.h: Add prototypes for pack_i1, pack_i2, pack_i4,
	pack_i8, pack_i16, pack_r4, pack_r8, pack_c4, pack_c8,
	pack_c10, pack_c16.
	* intrinsics/pack_generic.c:  Add calls to specific
	pack functions.
	* m4/pack.m4:  New file.
	* generated/pack_i1.c:  New file.
	* generated/pack_i2.c:  New file.
	* generated/pack_i4.c:  New file.
	* generated/pack_i8.c:  New file.
	* generated/pack_i16.c:  New file.
	* generated/pack_r4.c:  New file.
	* generated/pack_r8.c:  New file.
	* generated/pack_r10.c:  New file.
	* generated/pack_r16.c:  New file.
	* generated/pack_c4.c:  New file.
	* generated/pack_c8.c:  New file.
	* generated/pack_c10.c:  New file.
	* generated/pack_c16.c:  New file.

2008-03-21  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR libfortran/32972
	* internal_pack_1.f90:  New test case.
	* internal_pack_2.f90:  New test case.
	* internal_pack_3.f90:  New test case.

From-SVN: r133427