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re PR testsuite/47622 (FAIL: gcc.dg/pr42631.c scan-rtl-dump-not web "Web oldreg")

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PR testsuite/47622
	Revert
	2011-02-05  Jie Zhang  <jie@codesourcery.com>
	PR debug/42631
	* web.c (entry_register): Don't clobber the number of the
	first uninitialized reference in used[].

	testsuite/
	PR testsuite/47622
	Revert
	2011-02-05  Jie Zhang  <jie@codesourcery.com>
	PR debug/42631
	* gcc.dg/pr42631.c: Update test.
	* gcc.dg/pr42631-2.c: New test.

From-SVN: r169997
This commit is contained in:
Jie Zhang 2011-02-10 04:22:44 +00:00 committed by Jie Zhang
parent 604e39b109
commit 06c969bd26
5 changed files with 20 additions and 18 deletions
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9
gcc/ChangeLog
View File

@ -1,3 +1,12 @@
2011-02-10 Jie Zhang <jie@codesourcery.com>
PR testsuite/47622
Revert
2011-02-05 Jie Zhang <jie@codesourcery.com>
PR debug/42631
* web.c (entry_register): Don't clobber the number of the
first uninitialized reference in used[].
2011-02-09 Richard Guenther <rguenther@suse.de>
PR tree-optimization/47664

9
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,12 @@
2011-02-10 Jie Zhang <jie@codesourcery.com>
PR testsuite/47622
Revert
2011-02-05 Jie Zhang <jie@codesourcery.com>
PR debug/42631
* gcc.dg/pr42631.c: Update test.
* gcc.dg/pr42631-2.c: New test.
2011-02-09 Janus Weil <janus@gcc.gnu.org>
PR fortran/47352

9
gcc/testsuite/gcc.dg/pr42631-2.c
View File

@ -1,9 +0,0 @@
/* { dg-do compile } */
/* { dg-options "-O2 -funroll-loops -fdump-rtl-web" } */
foo()
{
}
/* { dg-final { scan-rtl-dump-not "Web oldreg" "web" } } */
/* { dg-final { cleanup-rtl-dump "web" } } */

5
gcc/testsuite/gcc.dg/pr42631.c
View File

@ -14,13 +14,10 @@
combine uninitialized uses into a single web. */
/* { dg-do compile } */
/* { dg-options "-g -O1 -funroll-loops -fcompare-debug -fdump-rtl-web" } */
/* { dg-options "-g -O1 -funroll-loops -fcompare-debug" } */
void foo()
{
unsigned k;
while (--k > 0);
}
/* { dg-final { scan-rtl-dump-not "Web oldreg" "web" } } */
/* { dg-final { cleanup-rtl-dump "web" } } */

6
gcc/web.c
View File

@ -260,11 +260,7 @@ entry_register (struct web_entry *entry, df_ref ref, unsigned int *used)
and there won't be any use for the other values when we get to
this point. */
if (used[REGNO (reg)] != 1)
{
newreg = reg;
if (!used[REGNO (reg)])
used[REGNO (reg)] = 1;
}
newreg = reg, used[REGNO (reg)] = 1;
else
{
newreg = gen_reg_rtx (GET_MODE (reg));