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re PR rtl-optimization/48156 (wrong code with -fcrossjumping)

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PR rtl-optimization/48156
	* df-core.c (df_get_bb_dirty): Use df_lr if df_live is NULL,
	assume df and df_lr are not NULL.

	* gcc.dg/pr48156.c: New test.

From-SVN: r171195
This commit is contained in:
Jakub Jelinek 2011-03-20 16:25:55 +01:00 committed by Jakub Jelinek
parent b6a75dda1d
commit 65e0a0f3c8
4 changed files with 60 additions and 5 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2011-03-20 Jakub Jelinek <jakub@redhat.com>
PR rtl-optimization/48156
* df-core.c (df_get_bb_dirty): Use df_lr if df_live is NULL,
assume df and df_lr are not NULL.
2011-03-20 Ramana Radhakrishnan <ramana.radhakrishnan@linaro.org>
PR debug/48023

9
gcc/df-core.c
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@ -1,6 +1,6 @@
/* Allocation for dataflow support routines.
Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
2008, 2009, 2010 Free Software Foundation, Inc.
2008, 2009, 2010, 2011 Free Software Foundation, Inc.
Originally contributed by Michael P. Hayes
(m.hayes@elec.canterbury.ac.nz, mhayes@redhat.com)
Major rewrite contributed by Danny Berlin (dberlin@dberlin.org)
@ -1400,10 +1400,9 @@ df_mark_solutions_dirty (void)
bool
df_get_bb_dirty (basic_block bb)
{
if (df && df_live)
return bitmap_bit_p (df_live->out_of_date_transfer_functions, bb->index);
else
return false;
return bitmap_bit_p ((df_live
? df_live : df_lr)->out_of_date_transfer_functions,
bb->index);
}

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2011-03-20 Jakub Jelinek <jakub@redhat.com>
PR rtl-optimization/48156
* gcc.dg/pr48156.c: New test.
2011-03-19 Francois-Xavier Coudert <fxcoudert@gcc.gnu.org>
PR libfortran/47439

45
gcc/testsuite/gcc.dg/pr48156.c Normal file
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@ -0,0 +1,45 @@
/* PR rtl-optimization/48156 */
/* { dg-do run } */
/* { dg-options "-O -fcrossjumping --param min-crossjump-insns=1" } */
extern void abort (void);
static int __attribute__ ((noinline, noclone))
equals (int s1, int s2)
{
return s1 == s2;
}
static int __attribute__ ((noinline, noclone))
bar (void)
{
return 1;
}
static void __attribute__ ((noinline, noclone))
baz (int f, int j)
{
if (f != 4 || j != 2)
abort ();
}
void
foo (int x)
{
int i = 0, j = bar ();
if (x == 1)
i = 2;
if (j && equals (i, j))
baz (8, i);
else
baz (4, i);
}
int
main ()
{
foo (1);
return 0;
}