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regrename.c (build_def_use): Don't share RTL between MATCH_OPERATOR and corresponding MATCH_DUP.

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* regrename.c (build_def_use): Don't share RTL between MATCH_OPERATOR
	and corresponding MATCH_DUP.
	* regrename.c(copyprop_hardreg_forward_1): Unshare when doing copyprop.

From-SVN: r128073
This commit is contained in:
Jan Hubicka 2007-09-04 12:29:23 +02:00 • committed by Jan Hubicka
parent 95afbcac54
commit e96a54f780
2 changed files with 10 additions and 9 deletions
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9
gcc/ChangeLog
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@ -1,3 +1,12 @@
2007-09-04 Jan Hubicka <jh@suse.cz>
* regrename.c(copyprop_hardreg_forward_1): Unshare when doing copyprop.
2007-09-04 Jan Hubicka <jh@suse.cz>
* regrename.c (build_def_use): Don't share RTL between MATCH_OPERATOR
and corresponding MATCH_DUP.
2007-09-04 Uros Bizjak <ubizjak@gmail.com>
PR middle-end/33187

10
gcc/regrename.c
View file

@ -807,16 +807,8 @@ build_def_use (basic_block bb)
}
for (i = 0; i < recog_data.n_dups; i++)
{
int dup_num = recog_data.dup_num[i];
old_dups[i] = *recog_data.dup_loc[i];
*recog_data.dup_loc[i] = cc0_rtx;
/* For match_dup of match_operator or match_parallel, share
them, so that we don't miss changes in the dup. */
if (icode >= 0
&& insn_data[icode].operand[dup_num].eliminable == 0)
old_dups[i] = recog_data.operand[dup_num];
}
scan_rtx (insn, &PATTERN (insn), NO_REGS, terminate_all_read,
@ -1745,7 +1737,7 @@ copyprop_hardreg_forward_1 (basic_block bb, struct value_data *vd)
recog_data.operand[i] = new;
for (j = 0; j < recog_data.n_dups; j++)
if (recog_data.dup_num[j] == i)
validate_change (insn, recog_data.dup_loc[j], new, 1);
validate_unshare_change (insn, recog_data.dup_loc[j], new, 1);
any_replacements = true;
}