contrib/gcc/see.c

124 set ((reg:DI 100) (sign_extend:DI ((subreg:SI (reg:DI 100)))))
128 set ((reg:DI 100) (sign_extend:DI ((subreg:SI (reg:DI 100)))))
154 set ((subreg:SI (reg:DI 100)) (..def1rhs..))
155 set ((reg:SI 10) (subreg:SI (reg:DI 100)))
161 set ((reg:DI 100) (sign_extend:DI ((subreg:SI (reg:DI 100)))))
171      (compare:CC (subreg:SI (reg:DI 100)) (...)))
196 set ((reg:DI 100) (sign_extend:DI ((subreg:SI (reg:DI 100)))))
224 set ((subreg:SI (reg:DI 100)) (..def3rhs..))		 - Inserted
225 set ((reg:SI 10) (subreg:SI (reg:DI 100)))		 - Inserted
239      (compare:CC (subreg:SI (reg:DI 100)) (...)))
245 set ((reg:DI 100) (sign_extend:DI ((subreg:SI (reg:DI 100)))))
362        reference with the proper subreg of WIDEmode register and save
666     set (reg/subreg reg1) (sign/zero_extend:WIDEmode (reg/subreg reg2))
713     set (reg/subreg reg1) (sign/zero_extend: (...expr...)
759    set ((reg r) (sign/zero_extend (subreg:mode (reg r))))
770   rtx subreg, insn;
778   subreg = gen_lowpart_SUBREG (mode, reg);
780     extension = gen_rtx_SIGN_EXTEND (GET_MODE (reg), subreg);
782     extension = gen_rtx_ZERO_EXTEND (GET_MODE (reg), subreg);
805 			   (subreg:NARROWmode (reg:WIDEmode r2))))  */
830    (sign_extend:WIDEmode (subreg:NARROWmode (reg:WIDEmode r)))  */
922 			   (subreg:NARROWmode (reg:WIDEmode r2))))
2424    set (subreg (dest_extension_reg)) (rhs)
2428    b. Replace every instance of dest_reg with the subreg.
2434    set (subreg (dest_extension_reg)) (dest_reg)
2457   rtx new_pseudo_reg, subreg;
2473   subreg = gen_lowpart_SUBREG (dest_mode, dest_extension_reg);
2480   /* Step b: Replace every instance of dest_reg with the subreg.  */
2481   ref_copy = replace_rtx (ref_copy, dest_reg, subreg);
2499       emit_move_insn (subreg, dest_reg);
2532   emit_move_insn (dest_reg, subreg);
2737   rtx move_insn, *rtx_slot, subreg;
2862   subreg = gen_lowpart_SUBREG (source_extension_mode, dest_extension_reg);
2864   emit_move_insn (source_extension_reg, subreg);