PR fortran/38282

	* intrinsic.c (add_functions): Add B{G,L}{E,T}, DSHIFT{L,R},
	MASK{L,R}, MERGE_BITS and SHIFT{A,L,R}.
	* gfortran.h: Define ISYM values for above intrinsics.
	* intrinsic.h (gfc_check_bge_bgt_ble_blt, gfc_check_dshift,
	gfc_check_mask, gfc_check_merge_bits, gfc_check_shift,
	gfc_simplify_bge, gfc_simplify_bgt, gfc_simplify_ble,
	gfc_simplify_blt, gfc_simplify_dshiftl, gfc_simplify_dshiftr,
	gfc_simplify_lshift, gfc_simplify_maskl, gfc_simplify_maskr,
	gfc_simplify_merge_bits, gfc_simplify_rshift,
	gfc_simplify_shifta, gfc_simplify_shiftl, gfc_simplify_shiftr,
	gfc_resolve_dshift, gfc_resolve_mask, gfc_resolve_merge_bits,
	gfc_resolve_shift): New prototypes.
	* iresolve.c (gfc_resolve_dshift, gfc_resolve_mask,
	gfc_resolve_merge_bits, gfc_resolve_shift): New functions.
	* check.c (gfc_check_bge_bgt_ble_blt, gfc_check_dshift,
	gfc_check_mask, gfc_check_merge_bits, gfc_check_shift): New
	functions.
	* trans-intrinsic.c (gfc_conv_intrinsic_dshift,
	gfc_conv_intrinsic_bitcomp, gfc_conv_intrinsic_shift,
	gfc_conv_intrinsic_merge_bits, gfc_conv_intrinsic_mask): New
	functions.
	(gfc_conv_intrinsic_function): Call above static functions.
	* intrinsic.texi: Document new intrinsics.
	* simplify.c (gfc_simplify_bge, gfc_simplify_bgt, gfc_simplify_ble,
        gfc_simplify_blt, gfc_simplify_dshiftl, gfc_simplify_dshiftr,
        gfc_simplify_lshift, gfc_simplify_maskl, gfc_simplify_maskr,
        gfc_simplify_merge_bits, gfc_simplify_rshift, 
        gfc_simplify_shifta, gfc_simplify_shiftl, gfc_simplify_shiftr):
	New functions.

	* gfortran.dg/bit_comparison_1.F90: New test.
	* gfortran.dg/leadz_trailz_3.f90: New test.
	* gfortran.dg/masklr_2.F90: New test.
	* gfortran.dg/shiftalr_1.F90: New test.
	* gfortran.dg/merge_bits_2.F90: New test.
	* gfortran.dg/dshift_2.F90: New test.
	* gfortran.dg/bit_comparison_2.F90: New test.
	* gfortran.dg/masklr_1.F90: New test.
	* gfortran.dg/merge_bits_1.F90: New test.
	* gfortran.dg/dshift_1.F90: New test.
	* gfortran.dg/shiftalr_2.F90: New test.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@164021 138bc75d-0d04-0410-961f-82ee72b054a4

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