summaryrefslogtreecommitdiff
path: root/gcc/var-tracking.c
diff options
context:
space:
mode:
Diffstat (limited to 'gcc/var-tracking.c')
-rw-r--r--gcc/var-tracking.c26
1 files changed, 2 insertions, 24 deletions
diff --git a/gcc/var-tracking.c b/gcc/var-tracking.c
index acc4d13d717..cfcc839b96c 100644
--- a/gcc/var-tracking.c
+++ b/gcc/var-tracking.c
@@ -6246,24 +6246,6 @@ delete_variable_part (dataflow_set *set, rtx loc, decl_or_value dv,
slot = delete_slot_part (set, loc, slot, offset);
}
-/* Wrap result in CONST:MODE if needed to preserve the mode. */
-
-static rtx
-check_wrap_constant (enum machine_mode mode, rtx result)
-{
- if (!result || GET_MODE (result) == mode)
- return result;
-
- if (dump_file && (dump_flags & TDF_DETAILS))
- fprintf (dump_file, " wrapping result in const to preserve mode %s\n",
- GET_MODE_NAME (mode));
-
- result = wrap_constant (mode, result);
- gcc_assert (GET_MODE (result) == mode);
-
- return result;
-}
-
/* Callback for cselib_expand_value, that looks for expressions
holding the value in the var-tracking hash tables. Return X for
standard processing, anything else is to be used as-is. */
@@ -6337,7 +6319,6 @@ vt_expand_loc_callback (rtx x, bitmap regs, int max_depth, void *data)
{
result = cselib_expand_value_rtx_cb (loc->loc, regs, max_depth,
vt_expand_loc_callback, vars);
- result = check_wrap_constant (GET_MODE (loc->loc), result);
if (result)
break;
}
@@ -6355,14 +6336,11 @@ vt_expand_loc_callback (rtx x, bitmap regs, int max_depth, void *data)
static rtx
vt_expand_loc (rtx loc, htab_t vars)
{
- rtx newloc;
-
if (!MAY_HAVE_DEBUG_INSNS)
return loc;
- newloc = cselib_expand_value_rtx_cb (loc, scratch_regs, 5,
- vt_expand_loc_callback, vars);
- loc = check_wrap_constant (GET_MODE (loc), newloc);
+ loc = cselib_expand_value_rtx_cb (loc, scratch_regs, 5,
+ vt_expand_loc_callback, vars);
if (loc && MEM_P (loc))
loc = targetm.delegitimize_address (loc);