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re PR middle-end/40386 (wrong code generation for several SPEC CPU2000 benchmarks (lucas, mgrid, face, applu, apsi) with -O1 -fno-ira-share-spill-slots)

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2010-09-09  Vladimir Makarov  <vmakarov@redhat.com>

	PR middle-end/40386
	* ira.c (pseudo_for_reload_consideration_p): Don't use
	flag_ira_share_spill_slots.

2010-09-09  Vladimir Makarov  <vmakarov@redhat.com>

	PR middle-end/40386
	* gcc.c-torture/execute/{pr40386.c,pr40386.x}: New testcase.

From-SVN: r164100
This commit is contained in:
Vladimir Makarov 2010-09-09 13:51:25 +00:00 committed by Vladimir Makarov
parent f08b23714f
commit b100151b6d
5 changed files with 113 additions and 2 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2010-09-09 Vladimir Makarov <vmakarov@redhat.com>
PR middle-end/40386
* ira.c (pseudo_for_reload_consideration_p): Don't use
flag_ira_share_spill_slots.
2010-09-09 Ulrich Weigand <Ulrich.Weigand@de.ibm.com>
* config/s390/s390.c (legitimate_reload_constant_p): Accept floating-

3
gcc/ira.c
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@ -2742,8 +2742,7 @@ pseudo_for_reload_consideration_p (int regno)
{
/* Consider spilled pseudos too for IRA because they still have a
chance to get hard-registers in the reload when IRA is used. */
return (reg_renumber[regno] >= 0
|| (ira_conflicts_p && flag_ira_share_spill_slots));
return (reg_renumber[regno] >= 0 || ira_conflicts_p);
}
/* Init LIVE_SUBREGS[ALLOCNUM] and LIVE_SUBREGS_USED[ALLOCNUM] using

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2010-09-09 Vladimir Makarov <vmakarov@redhat.com>
PR middle-end/40386
* gcc.c-torture/execute/{pr40386.c,pr40386.x}: New testcase.
2010-09-09 Mikael Morin <mikael@gcc.gnu.org>
* gfortran.dg/inline_transpose_1.f90: New test.

99
gcc/testsuite/gcc.c-torture/execute/pr40386.c Normal file
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@ -0,0 +1,99 @@
/* { dg-options "-fno-ira-share-spill-slots" } */
#define CHAR_BIT 8
#define ROR(a,b) (((a) >> (b)) | ((a) << ((sizeof (a) * CHAR_BIT) - (b))))
#define ROL(a,b) (((a) << (b)) | ((a) >> ((sizeof (a) * CHAR_BIT) - (b))))
#define CHAR_VALUE ((char)0xf234)
#define SHORT_VALUE ((short)0xf234)
#define INT_VALUE ((int)0xf234)
#define LONG_VALUE ((long)0xf2345678L)
#define LL_VALUE ((long long)0xf2345678abcdef0LL)
#define SHIFT1 4
#define SHIFT2 ((sizeof (long long) * CHAR_BIT) - SHIFT1)
char c = CHAR_VALUE;
short s = SHORT_VALUE;
int i = INT_VALUE;
long l = LONG_VALUE;
long long ll = LL_VALUE;
int shift1 = SHIFT1;
int shift2 = SHIFT2;
main ()
{
if (ROR (c, shift1) != ROR (CHAR_VALUE, SHIFT1))
abort ();
if (ROR (c, SHIFT1) != ROR (CHAR_VALUE, SHIFT1))
abort ();
if (ROR (s, shift1) != ROR (SHORT_VALUE, SHIFT1))
abort ();
if (ROR (s, SHIFT1) != ROR (SHORT_VALUE, SHIFT1))
abort ();
if (ROR (i, shift1) != ROR (INT_VALUE, SHIFT1))
abort ();
if (ROR (i, SHIFT1) != ROR (INT_VALUE, SHIFT1))
abort ();
if (ROR (l, shift1) != ROR (LONG_VALUE, SHIFT1))
abort ();
if (ROR (l, SHIFT1) != ROR (LONG_VALUE, SHIFT1))
abort ();
if (ROR (ll, shift1) != ROR (LL_VALUE, SHIFT1))
abort ();
if (ROR (ll, SHIFT1) != ROR (LL_VALUE, SHIFT1))
abort ();
if (ROR (ll, shift2) != ROR (LL_VALUE, SHIFT2))
abort ();
if (ROR (ll, SHIFT2) != ROR (LL_VALUE, SHIFT2))
abort ();
if (ROL (c, shift1) != ROL (CHAR_VALUE, SHIFT1))
abort ();
if (ROL (c, SHIFT1) != ROL (CHAR_VALUE, SHIFT1))
abort ();
if (ROL (s, shift1) != ROL (SHORT_VALUE, SHIFT1))
abort ();
if (ROL (s, SHIFT1) != ROL (SHORT_VALUE, SHIFT1))
abort ();
if (ROL (i, shift1) != ROL (INT_VALUE, SHIFT1))
abort ();
if (ROL (i, SHIFT1) != ROL (INT_VALUE, SHIFT1))
abort ();
if (ROL (l, shift1) != ROL (LONG_VALUE, SHIFT1))
abort ();
if (ROL (l, SHIFT1) != ROL (LONG_VALUE, SHIFT1))
abort ();
if (ROL (ll, shift1) != ROL (LL_VALUE, SHIFT1))
abort ();
if (ROL (ll, SHIFT1) != ROL (LL_VALUE, SHIFT1))
abort ();
if (ROL (ll, shift2) != ROL (LL_VALUE, SHIFT2))
abort ();
if (ROL (ll, SHIFT2) != ROL (LL_VALUE, SHIFT2))
abort ();
exit (0);
}

2
gcc/testsuite/gcc.c-torture/execute/pr40386.x Normal file
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@ -0,0 +1,2 @@
set additional_flags "-fno-ira-share-spill-slots"
return 0