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[PATCH 35/50] regcprop.c:cprop_find_used_regs
- From: Richard Sandiford <rdsandiford at googlemail dot com>
- To: gcc-patches at gcc dot gnu dot org
- Date: Sun, 03 Aug 2014 15:19:56 +0100
- Subject: [PATCH 35/50] regcprop.c:cprop_find_used_regs
- Authentication-results: sourceware.org; auth=none
- References: <87y4v5d77q dot fsf at googlemail dot com>
gcc/
* regcprop.c (cprop_find_used_regs_1): Delete.
(cprop_find_used_regs): Use FOR_EACH_SUBRTX instead of for_each_rtx.
Index: gcc/regcprop.c
===================================================================
--- gcc/regcprop.c 2014-08-03 11:25:29.603148851 +0100
+++ gcc/regcprop.c 2014-08-03 11:25:29.878151570 +0100
@@ -702,33 +702,28 @@ apply_debug_insn_changes (struct value_d
apply_change_group ();
}
-/* Called via for_each_rtx, for all used registers in a real
- insn apply DEBUG_INSN changes that change registers to the
- used register. */
-
-static int
-cprop_find_used_regs_1 (rtx *loc, void *data)
-{
- if (REG_P (*loc))
- {
- struct value_data *vd = (struct value_data *) data;
- if (vd->e[REGNO (*loc)].debug_insn_changes)
- {
- apply_debug_insn_changes (vd, REGNO (*loc));
- free_debug_insn_changes (vd, REGNO (*loc));
- }
- }
- return 0;
-}
-
/* Called via note_uses, for all used registers in a real insn
apply DEBUG_INSN changes that change registers to the used
registers. */
static void
-cprop_find_used_regs (rtx *loc, void *vd)
+cprop_find_used_regs (rtx *loc, void *data)
{
- for_each_rtx (loc, cprop_find_used_regs_1, vd);
+ struct value_data *const vd = (struct value_data *) data;
+ subrtx_iterator::array_type array;
+ FOR_EACH_SUBRTX (iter, array, *loc, NONCONST)
+ {
+ const_rtx x = *iter;
+ if (REG_P (x))
+ {
+ unsigned int regno = REGNO (x);
+ if (vd->e[regno].debug_insn_changes)
+ {
+ apply_debug_insn_changes (vd, regno);
+ free_debug_insn_changes (vd, regno);
+ }
+ }
+ }
}
/* Perform the forward copy propagation on basic block BB. */