gcc/gcc/df-problems.c

130    existing uses are included in the global reaching DEFs set, or in other
857     /* Add use to set of uses in this BB.  */
878 	/* Add use to set of uses in this BB.  */
894   /* Process the uses that are live into an exception handler.  */
896     /* Add use to set of uses in this BB.  */
1048 	 it deletes a statement S inside of a loop, the uses inside of
1872    Link either the defs to the uses and / or the uses to the defs.
2092   /* Since we are going forwards, process the artificial uses first
2096   /* Create the chains for the artificial uses from the EH_USES at the
2114         /* First scan the uses and link them up with the defs that remain
2124   /* Create the chains for the artificial uses of the hard registers
2174 	       ";;  UD chains for artificial uses at %s\n",
2701 /* Simulate the effects of the uses of INSN on LIVE.  */
2909    artificial uses.  DO_NOT_GEN is updated so that REG_DEAD notes are
3004       fprintf (dump_file, "  artificial uses =");
3075    info: lifetime, bb, and number of defs and uses for basic block
3098   /* Process the artificial defs and uses at the bottom of the block
3196       /* Process the uses.  */
3274 /* Compute register info: lifetime, bb, and number of defs and uses.  */
3288     /* ??? Unlike fast DCE, we don't use global_debug for uses of dead
3290        with death points after visiting dead uses.  Even changing this
3363    then uses are examined to set bits.  If you go forwards, defs are
3386 /* Find the set of uses for INSN.  This includes partial defs.  */
3389 df_simulate_find_uses (rtx_insn *insn, bitmap uses)
3396       bitmap_set_bit (uses, DF_REF_REGNO (def));
3398     bitmap_set_bit (uses, DF_REF_REGNO (use));
3433 /* Simulate the effects of the uses of INSN on LIVE.  */
3444     /* Add use to set of uses in this BB.  */
3465    i.e. they process the defs before the uses.
3475 /* Apply the artificial uses and defs at the end of BB in a backwards
3508 /* Apply the artificial uses and defs at the top of BB in a backwards
3775      the first insn in MERGE that sets a register in TEST_USE, or uses
3825 	  /* We're only interested in uses which use a value live at