------- Comment #6 from hjl dot tools at gmail dot com 2008-01-20 16:42 -------
Does this patch make any senses?
--- regmove.c.freq 2008-01-17 07:31:56.000000000 -0800
+++ regmove.c 2008-01-20 08:40:34.000000000 -0800
@@ -1695,7 +1695,7 @@ fixup_match_1 (rtx insn, rtx set, rtx sr
rtx p;
rtx post_inc = 0, post_inc_set = 0, search_end = 0;
int success = 0;
- int num_calls = 0, s_num_calls = 0;
+ int num_calls = 0, freq_calls = 0, s_num_calls = 0, s_freq_calls = 0;
enum rtx_code code = NOTE;
HOST_WIDE_INT insn_const = 0, newconst = 0;
rtx overlap = 0; /* need to move insn ? */
@@ -1887,10 +1887,13 @@ fixup_match_1 (rtx insn, rtx set, rtx sr
break;
num_calls++;
+ freq_calls += REG_FREQ_FROM_BB (BLOCK_FOR_INSN (p));
if (src_note)
- s_num_calls++;
-
+ {
+ s_num_calls++;
+ s_freq_calls += REG_FREQ_FROM_BB (BLOCK_FOR_INSN (p));
+ }
}
}
@@ -1939,7 +1942,7 @@ fixup_match_1 (rtx insn, rtx set, rtx sr
{
rtx note = find_reg_note (insn, REG_EQUAL, NULL_RTX);
rtx q, set2 = NULL_RTX;
- int num_calls2 = 0, s_length2 = 0;
+ int num_calls2 = 0, s_length2 = 0, freq_calls2 = 0;
if (note && CONSTANT_P (XEXP (note, 0)))
{
@@ -1968,7 +1971,10 @@ fixup_match_1 (rtx insn, rtx set, rtx sr
break;
}
if (CALL_P (p))
- num_calls2++;
+ {
+ num_calls2++;
+ freq_calls2 += REG_FREQ_FROM_BB (BLOCK_FOR_INSN (p));
+ }
}
if (q && set2 && SET_DEST (set2) == src && CONSTANT_P (SET_SRC
(set2))
&& validate_change (insn, &SET_SRC (set), XEXP (note, 0), 0))
@@ -1976,6 +1982,7 @@ fixup_match_1 (rtx insn, rtx set, rtx sr
delete_insn (q);
INC_REG_N_SETS (REGNO (src), -1);
REG_N_CALLS_CROSSED (REGNO (src)) -= num_calls2;
+ REG_FREQ_CALLS_CROSSED (REGNO (src)) -= freq_calls2;
REG_LIVE_LENGTH (REGNO (src)) -= s_length2;
insn_const = 0;
}
@@ -2044,12 +2051,14 @@ fixup_match_1 (rtx insn, rtx set, rtx sr
REG_NOTES (p) = src_note;
REG_N_CALLS_CROSSED (REGNO (src)) += s_num_calls;
+ REG_FREQ_CALLS_CROSSED (REGNO (src)) += s_freq_calls;
}
INC_REG_N_SETS (REGNO (src), 1);
INC_REG_N_SETS (REGNO (dst), -1);
REG_N_CALLS_CROSSED (REGNO (dst)) -= num_calls;
+ REG_FREQ_CALLS_CROSSED (REGNO (dst)) -= num_calls;
REG_LIVE_LENGTH (REGNO (src)) += s_length;
if (REG_LIVE_LENGTH (REGNO (dst)) >= 0)
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34852
