re PR tree-optimization/52267 (a&~N where N has all the bits set up till a specific point can be folded to ((unsigned)a) < N)

PR tree-optimization/52267
	* tree-vrp.c (masked_increment): New function.
	(register_edge_assert_for_2): Derive ASSERT_EXPRs
	from (X & CST1) cmp CST2 tests.

	* gcc.dg/pr52267.c: New test.
	* gcc.dg/tree-ssa/vrp65.c: New test.
	* gcc.dg/tree-ssa/vrp66.c: New test.

From-SVN: r185427
This commit is contained in:
Jakub Jelinek 2012-03-15 11:37:27 +01:00 committed by Jakub Jelinek
parent 9b00587cc2
commit ad193f32c8
6 changed files with 1546 additions and 1 deletions

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@ -1,3 +1,10 @@
2012-03-15 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/52267
* tree-vrp.c (masked_increment): New function.
(register_edge_assert_for_2): Derive ASSERT_EXPRs
from (X & CST1) cmp CST2 tests.
2012-03-15 Richard Guenther <rguenther@suse.de>
PR middle-end/52580

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@ -1,3 +1,10 @@
2012-03-15 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/52267
* gcc.dg/pr52267.c: New test.
* gcc.dg/tree-ssa/vrp65.c: New test.
* gcc.dg/tree-ssa/vrp66.c: New test.
2012-03-15 Richard Guenther <rguenther@suse.de>
PR middle-end/52580

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@ -0,0 +1,24 @@
/* PR tree-optimization/52267 */
/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-optimized" } */
int
foo (int a, int b)
{
if (a > 3 || a < 0)
return a;
a &= 3;
return a & 3;
}
int
bar (int a)
{
if (a & ~3)
return a;
return a & 3;
}
/* { dg-final { scan-tree-dump-not "& 3" "optimized" } } */
/* { dg-final { scan-tree-dump-not "& -4" "optimized" } } */
/* { dg-final { cleanup-tree-dump "optimized" } } */

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/* PR tree-optimization/52267 */
/* { dg-do link } */
/* { dg-options "-O2" } */
extern void link_error (void);
#define BITSM1 (sizeof (int) * __CHAR_BIT__ - 1)
#define BITSH ((sizeof (int) - sizeof (short)) * __CHAR_BIT__)
void
f1 (unsigned int s)
{
if ((s & (7U << (BITSM1 - 2))) != 0)
{
if (s <= (1U << (BITSM1 - 2)) - 1)
link_error ();
}
else
{
if (s >= (1U << (BITSM1 - 2)))
link_error ();
}
}
void
f2 (int s)
{
if ((s & (7U << (BITSM1 - 2))) == 0)
{
if (s >= (1 << (BITSM1 - 2)) || s < 0)
link_error ();
}
else
{
if (s >= 0 && s <= (1 << (BITSM1 - 2)) - 1)
link_error ();
}
}
void
f3 (unsigned int s)
{
if ((s & 0x3cc0) == 0)
{
if (s >= -15552U)
link_error ();
}
else
{
if (s <= 0x3f)
link_error ();
}
}
void
f4 (int s)
{
if ((s & 0x3cc0) == 0)
{
if (s >= -15552 && s < 0)
link_error ();
}
else
{
if (/* s <= 0x3fU */ s == 0 || s == 0x20 || s == 0x3f)
link_error ();
}
}
void
f5 (int s)
{
if ((s & 0x3cc0U) == 0)
{
if (s >= -15552 && s < 0)
link_error ();
}
else
{
if (/* s <= 0x3fU */ s == 0 || s == 0x20 || s == 0x3f)
link_error ();
}
}
void
f6 (unsigned int s)
{
if ((s & 0x3cc0) == 0x3cc0)
{
if (s <= 0x3cbf)
link_error ();
}
else
{
if (s >= -64U)
link_error ();
}
}
void
f7 (int s)
{
if ((s & 0x3cc0) == 0x3cc0)
{
if (s >= 0 && s <= 0x3cbf)
link_error ();
}
else
{
if (s >= -64 && s < 0)
link_error ();
}
}
void
f8 (int s)
{
if ((s & 0x3cc0U) == 0x3cc0)
{
if (s >= 0 && s <= 0x3cbf)
link_error ();
}
else
{
if (s >= -64 && s < 0)
link_error ();
}
}
void
f9 (unsigned int s)
{
if ((s & 0x3cc0) >= 0x1cc0)
{
if (s <= 0x1cbf)
link_error ();
}
else
{
if (s >= -8256U)
link_error ();
}
}
void
f10 (unsigned int s)
{
if ((s & 0x3cc0) > 0x1cc0)
{
if (s <= 0x1fff)
link_error ();
}
else
{
if (s >= -8192U)
link_error ();
}
}
void
f11 (int s)
{
if ((s & 0x3cc0) >= 0x1cc0)
{
if (s >= 0 && s <= 0x1cbf)
link_error ();
}
else
{
if (s >= -8256 && s < 0)
link_error ();
}
}
void
f12 (int s)
{
if ((s & 0x3cc0) > 0x1cc0)
{
if (s >= 0 && s <= 0x1fff)
link_error ();
}
else
{
if (s >= -8192 && s < 0)
link_error ();
}
}
void
f13 (unsigned int s)
{
if ((s & (0xe071U << BITSH)) > (0xb030U << BITSH))
{
if (s <= ((0xc000U << BITSH) - 1))
link_error ();
}
else
{
if (s >= (0xc000U << BITSH))
link_error ();
}
}
void
f14 (unsigned int s)
{
if ((s & (0xe071U << BITSH)) > (0xa030U << BITSH))
{
if (s <= ((0xa031U << BITSH) - 1))
link_error ();
}
else
{
if (s >= (0xbfbfU << BITSH))
link_error ();
}
}
void
f15 (int s)
{
if ((s & ((-0x1f8f) << BITSH)) > ((-0x4fd0) << BITSH))
{
if (s <= ((-0x4000 << BITSH) - 1))
link_error ();
}
else
{
if (s > ((-0x4000 << BITSH) - 1))
link_error ();
}
}
void
f16 (int s)
{
if ((s & ((-0x1f8f) << BITSH)) >= ((-0x4fd0) << BITSH))
{
if (s <= ((-0x4000 << BITSH) - 1))
link_error ();
}
else
{
if (s > ((-0x4000 << BITSH) - 1))
link_error ();
}
}
void
f17 (int s)
{
if ((s & ((-0x4000 << BITSH) | 1)) != -__INT_MAX__ - 1)
{
if (s == -__INT_MAX__ - 1)
link_error ();
}
else
{
if (s >= (-0x4000 << BITSH) - 1)
link_error ();
}
}
void
f18 (int s)
{
if ((s & ((-0x4000 << BITSH) | 1)) != ((-0x4000 << BITSH) | 1))
{
if (s == -1)
link_error ();
}
else
{
if (s < ((-0x4000 << BITSH) | 1) || s >= 0)
link_error ();
}
}
void
f19 (int s)
{
if ((s & ((-0x4000 << BITSH) | 1)) != ((0x4000 << BITSH) | 1))
{
if (s == __INT_MAX__)
link_error ();
}
else
{
if (s <= (0x4000 << BITSH))
link_error ();
}
}
void
f20 (int s)
{
if ((s & (-0x1000 << BITSH)) != -__INT_MAX__ - 1)
{
if (s < (-0x7000 << BITSH))
link_error ();
}
else
{
if (s >= (-0x7000 << BITSH))
link_error ();
}
}
void
f21 (int s)
{
if ((s & (-0x1000 << BITSH)) != (-0x1000 << BITSH))
{
if (s >= (-0x1000 << BITSH) && s < 0)
link_error ();
}
else
{
if (s < (-0x1000 << BITSH) || s >= 0)
link_error ();
}
}
void
f22 (int s)
{
if ((s & (-0x1000 << BITSH)) != (0x7000 << BITSH))
{
if (s >= (0x7000 << BITSH))
link_error ();
}
else
{
if (s < (0x7000 << BITSH))
link_error ();
}
}
void
f23 (unsigned int s)
{
if ((s & (0xf000U << BITSH)) != (0x7000 << BITSH))
{
if (/* s >= (0x7000 << BITSH) && s < (0x8000U << BITSH) */
s == (0x7000 << BITSH) || s == __INT_MAX__)
link_error ();
}
else
{
if (s < (0x7000 << BITSH) || s >= (0x8000U << BITSH))
link_error ();
}
}
void
f24 (unsigned int s)
{
if ((s & (0xf000U << BITSH)) != (0x8000U << BITSH))
{
if (/* s >= (0x8000U << BITSH) && s < (0x9000U << BITSH) */
s == (0x8000U << BITSH) || s == (0x9000U << BITSH) - 1)
link_error ();
}
else
{
if (s >= (0x9000U << BITSH) || s < (0x8000U << BITSH))
link_error ();
}
}
int
main ()
{
return 0;
}

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/* PR tree-optimization/52267 */
/* { dg-do run } */
/* { dg-options "-O2" } */
extern void abort (void);
#define BITSM1 (sizeof (int) * __CHAR_BIT__ - 1)
#define BITSH ((sizeof (int) - sizeof (short)) * __CHAR_BIT__)
void
f1 (unsigned int s)
{
if ((s & (7U << (BITSM1 - 2))) != 0)
{
if (s == (0xc000U << BITSH) - 1 || s == (0xf000U << BITSH) - 1
|| s == (0x9000U << BITSH) - 1 || s == (0xa031U << BITSH) - 1
|| s == (0xbfbfU << BITSH) || s == (0xc000U << BITSH)
|| s == (0xf000U << BITSH) || s == (0x9000U << BITSH)
|| s == (0xc000U << BITSH) + 1 || s == -1U || s == -15U
|| s == -15550U || s == -15552U || s == (0x7000 << BITSH) - 1
|| s == (0x7000 << BITSH) || s == (1 << (BITSM1 - 2))
|| s == 1U + __INT_MAX__ || s == -32U
|| s == (3 << (BITSM1 - 2)) + 2 || s == -5U || s == -63U
|| s == -64U || s == -65U || s == 6U + __INT_MAX__ || s == -8189U
|| s == -8191U || s == -8192U || s == -8193U || s == -8250U
|| s == -8255U || s == -8256U || s == -8257U || s == __INT_MAX__
|| s == __INT_MAX__ + 9U)
return;
}
else
{
if (s == 0 || s == 0x1cbf || s == 0x1cc0 || s == 0x1fff || s == 0x2000
|| s == 0x20 || s == 0x3cbf || s == 0x3cc0 || s == 0x3f || s == 1
|| s == (1 << (BITSM1 - 2)) - 1 || s == 2 || s == 24 || s == 5)
return;
}
abort ();
}
void
f2 (int s)
{
if ((s & (7U << (BITSM1 - 2))) == 0)
{
if (s == 0 || s == 0x1cbf || s == 0x1cc0 || s == 0x1fff || s == 0x2000
|| s == 0x20 || s == 0x3cbf || s == 0x3cc0 || s == 0x3f || s == 1
|| s == (1 << (BITSM1 - 2)) - 1 || s == 2 || s == 24 || s == 5)
return;
}
else
{
if (s == (-0x4000 << BITSH) - 1 || s == (-0x1000 << BITSH) - 1
|| s == (-0x7000 << BITSH) - 1 || s == (-0x5fcf << BITSH) - 1
|| s == (-0x4041 << BITSH) || s == (-0x4000 << BITSH)
|| s == (-0x1000 << BITSH) || s == (-0x7000 << BITSH)
|| s == (-0x4000 << BITSH) + 1 || s == -1 || s == -15 || s == -15550
|| s == -15552 || s == (0x7000 << BITSH) - 1
|| s == (0x7000 << BITSH) || s == (1 << (BITSM1 - 2))
|| s == -__INT_MAX__ - 1 || s == -32 || s == (3 << (BITSM1 - 2)) + 2
|| s == -5 || s == -63 || s == -64 || s == -65
|| s == -__INT_MAX__ + 4 || s == -8189 || s == -8191 || s == -8192
|| s == -8193 || s == -8250 || s == -8255 || s == -8256
|| s == -8257 || s == __INT_MAX__ || s == -__INT_MAX__ + 7)
return;
}
abort ();
}
void
f3 (unsigned int s)
{
if ((s & 0x3cc0) == 0)
{
if (s == 0 || s == 0x20 || s == 0x3f || s == (0xbfbfU << BITSH)
|| s == (0xc000U << BITSH) || s == (0xf000U << BITSH)
|| s == (0x9000U << BITSH) || s == (0xc000U << BITSH) + 1 || s == 1
|| s == (0x7000 << BITSH) || s == (1 << (BITSM1 - 2))
|| s == 1U + __INT_MAX__ || s == 2 || s == 24
|| s == (3 << (BITSM1 - 2)) + 2 || s == 5 || s == 6U + __INT_MAX__
|| s == __INT_MAX__ + 9U)
return;
}
else
{
if (s == 0x1cbf || s == 0x1cc0 || s == 0x1fff || s == 0x2000
|| s == 0x3cbf || s == 0x3cc0 || s == (0xc000U << BITSH) - 1
|| s == (0xf000U << BITSH) - 1 || s == (0x9000U << BITSH) - 1
|| s == (0xa031U << BITSH) - 1 || s == -1U || s == -15U
|| s == -15550U || s == -15552U || s == (0x7000 << BITSH) - 1
|| s == (1 << (BITSM1 - 2)) - 1 || s == -32U || s == -5U
|| s == -63U || s == -64U || s == -65U || s == -8189U || s == -8191U
|| s == -8192U || s == -8193U || s == -8250U || s == -8255U
|| s == -8256U || s == -8257U || s == __INT_MAX__)
return;
}
abort ();
}
void
f4 (int s)
{
if ((s & 0x3cc0) == 0)
{
if (s == 0 || s == 0x20 || s == 0x3f || s == (-0x4041 << BITSH)
|| s == (-0x4000 << BITSH) || s == (-0x1000 << BITSH)
|| s == (-0x7000 << BITSH) || s == (-0x4000 << BITSH) + 1 || s == 1
|| s == (0x7000 << BITSH) || s == (1 << (BITSM1 - 2))
|| s == -__INT_MAX__ - 1 || s == 2 || s == 24
|| s == (3 << (BITSM1 - 2)) + 2 || s == 5 || s == -__INT_MAX__ + 4
|| s == -__INT_MAX__ + 7)
return;
}
else
{
if (s == 0x1cbf || s == 0x1cc0 || s == 0x1fff || s == 0x2000
|| s == 0x3cbf || s == 0x3cc0 || s == (-0x4000 << BITSH) - 1
|| s == (-0x1000 << BITSH) - 1 || s == (-0x7000 << BITSH) - 1
|| s == (-0x5fcf << BITSH) - 1 || s == -1 || s == -15 || s == -15550
|| s == -15552 || s == (0x7000 << BITSH) - 1
|| s == (1 << (BITSM1 - 2)) - 1 || s == -32 || s == -5 || s == -63
|| s == -64 || s == -65 || s == -8189 || s == -8191 || s == -8192
|| s == -8193 || s == -8250 || s == -8255 || s == -8256
|| s == -8257 || s == __INT_MAX__)
return;
}
abort ();
}
void
f5 (int s)
{
if ((s & 0x3cc0U) == 0)
{
if (s == 0 || s == 0x20 || s == 0x3f || s == (-0x4041 << BITSH)
|| s == (-0x4000 << BITSH) || s == (-0x1000 << BITSH)
|| s == (-0x7000 << BITSH) || s == (-0x4000 << BITSH) + 1 || s == 1
|| s == (0x7000 << BITSH) || s == (1 << (BITSM1 - 2))
|| s == -__INT_MAX__ - 1 || s == 2 || s == 24
|| s == (3 << (BITSM1 - 2)) + 2 || s == 5 || s == -__INT_MAX__ + 4
|| s == -__INT_MAX__ + 7)
return;
}
else
{
if (s == 0x1cbf || s == 0x1cc0 || s == 0x1fff || s == 0x2000
|| s == 0x3cbf || s == 0x3cc0 || s == (-0x4000 << BITSH) - 1
|| s == (-0x1000 << BITSH) - 1 || s == (-0x7000 << BITSH) - 1
|| s == (-0x5fcf << BITSH) - 1 || s == -1 || s == -15 || s == -15550
|| s == -15552 || s == (0x7000 << BITSH) - 1
|| s == (1 << (BITSM1 - 2)) - 1 || s == -32 || s == -5 || s == -63
|| s == -64 || s == -65 || s == -8189 || s == -8191 || s == -8192
|| s == -8193 || s == -8250 || s == -8255 || s == -8256
|| s == -8257 || s == __INT_MAX__)
return;
}
abort ();
}
void
f6 (unsigned int s)
{
if ((s & 0x3cc0) == 0x3cc0)
{
if (s == 0x3cc0 || s == (0xc000U << BITSH) - 1
|| s == (0xf000U << BITSH) - 1 || s == (0x9000U << BITSH) - 1
|| s == (0xa031U << BITSH) - 1 || s == -1U || s == -15U
|| s == (0x7000 << BITSH) - 1 || s == (1 << (BITSM1 - 2)) - 1
|| s == -32U || s == -5U || s == -63U || s == -64U
|| s == __INT_MAX__)
return;
}
else
{
if (s == 0 || s == 0x1cbf || s == 0x1cc0 || s == 0x1fff || s == 0x2000
|| s == 0x20 || s == 0x3cbf || s == 0x3f || s == (0xbfbfU << BITSH)
|| s == (0xc000U << BITSH) || s == (0xf000U << BITSH)
|| s == (0x9000U << BITSH) || s == (0xc000U << BITSH) + 1 || s == 1
|| s == -15550U || s == -15552U || s == (0x7000 << BITSH)
|| s == (1 << (BITSM1 - 2)) || s == 1U + __INT_MAX__ || s == 2
|| s == 24 || s == (3 << (BITSM1 - 2)) + 2 || s == 5 || s == -65U
|| s == 6U + __INT_MAX__ || s == -8189U || s == -8191U
|| s == -8192U || s == -8193U || s == -8250U || s == -8255U
|| s == -8256U || s == -8257U || s == __INT_MAX__ + 9U)
return;
}
abort ();
}
void
f7 (int s)
{
if ((s & 0x3cc0) == 0x3cc0)
{
if (s == 0x3cc0 || s == (-0x4000 << BITSH) - 1
|| s == (-0x1000 << BITSH) - 1 || s == (-0x7000 << BITSH) - 1
|| s == (-0x5fcf << BITSH) - 1 || s == -1 || s == -15
|| s == (0x7000 << BITSH) - 1 || s == (1 << (BITSM1 - 2)) - 1
|| s == -32 || s == -5 || s == -63 || s == -64 || s == __INT_MAX__)
return;
}
else
{
if (s == 0 || s == 0x1cbf || s == 0x1cc0 || s == 0x1fff || s == 0x2000
|| s == 0x20 || s == 0x3cbf || s == 0x3f || s == (-0x4041 << BITSH)
|| s == (-0x4000 << BITSH) || s == (-0x1000 << BITSH)
|| s == (-0x7000 << BITSH) || s == (-0x4000 << BITSH) + 1 || s == 1
|| s == -15550 || s == -15552 || s == (0x7000 << BITSH)
|| s == (1 << (BITSM1 - 2)) || s == -__INT_MAX__ - 1 || s == 2
|| s == 24 || s == (3 << (BITSM1 - 2)) + 2 || s == 5 || s == -65
|| s == -__INT_MAX__ + 4 || s == -8189 || s == -8191 || s == -8192
|| s == -8193 || s == -8250 || s == -8255 || s == -8256
|| s == -8257 || s == -__INT_MAX__ + 7)
return;
}
abort ();
}
void
f8 (int s)
{
if ((s & 0x3cc0U) == 0x3cc0)
{
if (s == 0x3cc0 || s == (-0x4000 << BITSH) - 1
|| s == (-0x1000 << BITSH) - 1 || s == (-0x7000 << BITSH) - 1
|| s == (-0x5fcf << BITSH) - 1 || s == -1 || s == -15
|| s == (0x7000 << BITSH) - 1 || s == (1 << (BITSM1 - 2)) - 1
|| s == -32 || s == -5 || s == -63 || s == -64 || s == __INT_MAX__)
return;
}
else
{
if (s == 0 || s == 0x1cbf || s == 0x1cc0 || s == 0x1fff || s == 0x2000
|| s == 0x20 || s == 0x3cbf || s == 0x3f || s == (-0x4041 << BITSH)
|| s == (-0x4000 << BITSH) || s == (-0x1000 << BITSH)
|| s == (-0x7000 << BITSH) || s == (-0x4000 << BITSH) + 1 || s == 1
|| s == -15550 || s == -15552 || s == (0x7000 << BITSH)
|| s == (1 << (BITSM1 - 2)) || s == -__INT_MAX__ - 1 || s == 2
|| s == 24 || s == (3 << (BITSM1 - 2)) + 2 || s == 5 || s == -65
|| s == -__INT_MAX__ + 4 || s == -8189 || s == -8191 || s == -8192
|| s == -8193 || s == -8250 || s == -8255 || s == -8256
|| s == -8257 || s == -__INT_MAX__ + 7)
return;
}
abort ();
}
void
f9 (unsigned int s)
{
if ((s & 0x3cc0) >= 0x1cc0)
{
if (s == 0x1cc0 || s == 0x1fff || s == 0x2000 || s == 0x3cbf
|| s == 0x3cc0 || s == (0xc000U << BITSH) - 1
|| s == (0xf000U << BITSH) - 1 || s == (0x9000U << BITSH) - 1
|| s == (0xa031U << BITSH) - 1 || s == -1U || s == -15U
|| s == (0x7000 << BITSH) - 1 || s == (1 << (BITSM1 - 2)) - 1
|| s == -32U || s == -5U || s == -63U || s == -64U || s == -65U
|| s == -8189U || s == -8191U || s == -8192U || s == -8193U
|| s == -8250U || s == -8255U || s == -8256U || s == __INT_MAX__)
return;
}
else
{
if (s == 0 || s == 0x1cbf || s == 0x20 || s == 0x3f
|| s == (0xbfbfU << BITSH) || s == (0xc000U << BITSH)
|| s == (0xf000U << BITSH) || s == (0x9000U << BITSH)
|| s == (0xc000U << BITSH) + 1 || s == 1 || s == -15550U
|| s == -15552U || s == (0x7000 << BITSH)
|| s == (1 << (BITSM1 - 2)) || s == 1U + __INT_MAX__ || s == 2
|| s == 24 || s == (3 << (BITSM1 - 2)) + 2 || s == 5
|| s == 6U + __INT_MAX__ || s == -8257U || s == __INT_MAX__ + 9U)
return;
}
abort ();
}
void
f10 (unsigned int s)
{
if ((s & 0x3cc0) > 0x1cc0)
{
if (s == 0x2000 || s == 0x3cbf || s == 0x3cc0
|| s == (0xc000U << BITSH) - 1 || s == (0xf000U << BITSH) - 1
|| s == (0x9000U << BITSH) - 1 || s == (0xa031U << BITSH) - 1
|| s == -1U || s == -15U || s == (0x7000 << BITSH) - 1
|| s == (1 << (BITSM1 - 2)) - 1 || s == -32U || s == -5U
|| s == -63U || s == -64U || s == -65U || s == -8189U || s == -8191U
|| s == -8192U || s == __INT_MAX__)
return;
}
else
{
if (s == 0 || s == 0x1cbf || s == 0x1cc0 || s == 0x1fff || s == 0x20
|| s == 0x3f || s == (0xbfbfU << BITSH) || s == (0xc000U << BITSH)
|| s == (0xf000U << BITSH) || s == (0x9000U << BITSH)
|| s == (0xc000U << BITSH) + 1 || s == 1 || s == -15550U
|| s == -15552U || s == (0x7000 << BITSH)
|| s == (1 << (BITSM1 - 2)) || s == 1U + __INT_MAX__ || s == 2
|| s == 24 || s == (3 << (BITSM1 - 2)) + 2 || s == 5
|| s == 6U + __INT_MAX__ || s == -8193U || s == -8250U
|| s == -8255U || s == -8256U || s == -8257U
|| s == __INT_MAX__ + 9U)
return;
}
abort ();
}
void
f11 (int s)
{
if ((s & 0x3cc0) >= 0x1cc0)
{
if (s == 0x1cc0 || s == 0x1fff || s == 0x2000 || s == 0x3cbf
|| s == 0x3cc0 || s == (-0x4000 << BITSH) - 1
|| s == (-0x1000 << BITSH) - 1 || s == (-0x7000 << BITSH) - 1
|| s == (-0x5fcf << BITSH) - 1 || s == -1 || s == -15
|| s == (0x7000 << BITSH) - 1 || s == (1 << (BITSM1 - 2)) - 1
|| s == -32 || s == -5 || s == -63 || s == -64 || s == -65
|| s == -8189 || s == -8191 || s == -8192 || s == -8193
|| s == -8250 || s == -8255 || s == -8256 || s == __INT_MAX__)
return;
}
else
{
if (s == 0 || s == 0x1cbf || s == 0x20 || s == 0x3f
|| s == (-0x4041 << BITSH) || s == (-0x4000 << BITSH)
|| s == (-0x1000 << BITSH) || s == (-0x7000 << BITSH)
|| s == (-0x4000 << BITSH) + 1 || s == 1 || s == -15550
|| s == -15552 || s == (0x7000 << BITSH) || s == (1 << (BITSM1 - 2))
|| s == -__INT_MAX__ - 1 || s == 2 || s == 24
|| s == (3 << (BITSM1 - 2)) + 2 || s == 5 || s == -__INT_MAX__ + 4
|| s == -8257 || s == -__INT_MAX__ + 7)
return;
}
abort ();
}
void
f12 (int s)
{
if ((s & 0x3cc0) > 0x1cc0)
{
if (s == 0x2000 || s == 0x3cbf || s == 0x3cc0
|| s == (-0x4000 << BITSH) - 1 || s == (-0x1000 << BITSH) - 1
|| s == (-0x7000 << BITSH) - 1 || s == (-0x5fcf << BITSH) - 1
|| s == -1 || s == -15 || s == (0x7000 << BITSH) - 1
|| s == (1 << (BITSM1 - 2)) - 1 || s == -32 || s == -5 || s == -63
|| s == -64 || s == -65 || s == -8189 || s == -8191 || s == -8192
|| s == __INT_MAX__)
return;
}
else
{
if (s == 0 || s == 0x1cbf || s == 0x1cc0 || s == 0x1fff || s == 0x20
|| s == 0x3f || s == (-0x4041 << BITSH) || s == (-0x4000 << BITSH)
|| s == (-0x1000 << BITSH) || s == (-0x7000 << BITSH)
|| s == (-0x4000 << BITSH) + 1 || s == 1 || s == -15550
|| s == -15552 || s == (0x7000 << BITSH) || s == (1 << (BITSM1 - 2))
|| s == -__INT_MAX__ - 1 || s == 2 || s == 24
|| s == (3 << (BITSM1 - 2)) + 2 || s == 5 || s == -__INT_MAX__ + 4
|| s == -8193 || s == -8250 || s == -8255 || s == -8256
|| s == -8257 || s == -__INT_MAX__ + 7)
return;
}
abort ();
}
void
f13 (unsigned int s)
{
if ((s & (0xe071U << BITSH)) > (0xb030U << BITSH))
{
if (s == (0xf000U << BITSH) - 1 || s == (0xc000U << BITSH)
|| s == (0xf000U << BITSH) || s == (0xc000U << BITSH) + 1
|| s == -1U || s == -15U || s == -15550U || s == -15552U
|| s == -32U || s == -5U || s == -63U || s == -64U || s == -65U
|| s == -8189U || s == -8191U || s == -8192U || s == -8193U
|| s == -8250U || s == -8255U || s == -8256U || s == -8257U)
return;
}
else
{
if (s == 0 || s == 0x1cbf || s == 0x1cc0 || s == 0x1fff || s == 0x2000
|| s == 0x20 || s == 0x3cbf || s == 0x3cc0 || s == 0x3f
|| s == (0xc000U << BITSH) - 1 || s == (0x9000U << BITSH) - 1
|| s == (0xa031U << BITSH) - 1 || s == (0xbfbfU << BITSH)
|| s == (0x9000U << BITSH) || s == 1 || s == (0x7000 << BITSH) - 1
|| s == (0x7000 << BITSH) || s == (1 << (BITSM1 - 2))
|| s == (1 << (BITSM1 - 2)) - 1 || s == 1U + __INT_MAX__ || s == 2
|| s == 24 || s == (3 << (BITSM1 - 2)) + 2 || s == 5
|| s == 6U + __INT_MAX__ || s == __INT_MAX__
|| s == __INT_MAX__ + 9U)
return;
}
abort ();
}
void
f14 (unsigned int s)
{
if ((s & (0xe071U << BITSH)) > (0xa030U << BITSH))
{
if (s == (0xc000U << BITSH) - 1 || s == (0xf000U << BITSH) - 1
|| s == (0xbfbfU << BITSH) || s == (0xc000U << BITSH)
|| s == (0xf000U << BITSH) || s == (0xc000U << BITSH) + 1
|| s == -1U || s == -15U || s == -15550U || s == -15552U
|| s == -32U || s == -5U || s == -63U || s == -64U || s == -65U
|| s == -8189U || s == -8191U || s == -8192U || s == -8193U
|| s == -8250U || s == -8255U || s == -8256U || s == -8257U)
return;
}
else
{
if (s == 0 || s == 0x1cbf || s == 0x1cc0 || s == 0x1fff || s == 0x2000
|| s == 0x20 || s == 0x3cbf || s == 0x3cc0 || s == 0x3f
|| s == (0x9000U << BITSH) - 1 || s == (0xa031U << BITSH) - 1
|| s == (0x9000U << BITSH) || s == 1 || s == (0x7000 << BITSH) - 1
|| s == (0x7000 << BITSH) || s == (1 << (BITSM1 - 2))
|| s == (1 << (BITSM1 - 2)) - 1 || s == 1U + __INT_MAX__ || s == 2
|| s == 24 || s == (3 << (BITSM1 - 2)) + 2 || s == 5
|| s == 6U + __INT_MAX__ || s == __INT_MAX__
|| s == __INT_MAX__ + 9U)
return;
}
abort ();
}
void
f15 (int s)
{
if ((s & ((-0x1f8f) << BITSH)) > ((-0x4fd0) << BITSH))
{
if (s == 0 || s == 0x1cbf || s == 0x1cc0 || s == 0x1fff || s == 0x2000
|| s == 0x20 || s == 0x3cbf || s == 0x3cc0 || s == 0x3f
|| s == (-0x1000 << BITSH) - 1 || s == (-0x4000 << BITSH)
|| s == (-0x1000 << BITSH) || s == (-0x4000 << BITSH) + 1 || s == 1
|| s == -1 || s == -15 || s == -15550 || s == -15552
|| s == (0x7000 << BITSH) - 1 || s == (0x7000 << BITSH)
|| s == (1 << (BITSM1 - 2)) || s == (1 << (BITSM1 - 2)) - 1
|| s == 2 || s == 24 || s == -32 || s == (3 << (BITSM1 - 2)) + 2
|| s == 5 || s == -5 || s == -63 || s == -64 || s == -65
|| s == -8189 || s == -8191 || s == -8192 || s == -8193
|| s == -8250 || s == -8255 || s == -8256 || s == -8257
|| s == __INT_MAX__)
return;
}
else
{
if (s == (-0x4000 << BITSH) - 1 || s == (-0x7000 << BITSH) - 1
|| s == (-0x5fcf << BITSH) - 1 || s == (-0x4041 << BITSH)
|| s == (-0x7000 << BITSH) || s == -__INT_MAX__ - 1
|| s == -__INT_MAX__ + 4 || s == -__INT_MAX__ + 7)
return;
}
abort ();
}
void
f16 (int s)
{
if ((s & ((-0x1f8f) << BITSH)) >= ((-0x4fd0) << BITSH))
{
if (s == 0 || s == 0x1cbf || s == 0x1cc0 || s == 0x1fff || s == 0x2000
|| s == 0x20 || s == 0x3cbf || s == 0x3cc0 || s == 0x3f
|| s == (-0x1000 << BITSH) - 1 || s == (-0x4000 << BITSH)
|| s == (-0x1000 << BITSH) || s == (-0x4000 << BITSH) + 1 || s == 1
|| s == -1 || s == -15 || s == -15550 || s == -15552
|| s == (0x7000 << BITSH) - 1 || s == (0x7000 << BITSH)
|| s == (1 << (BITSM1 - 2)) || s == (1 << (BITSM1 - 2)) - 1
|| s == 2 || s == 24 || s == -32 || s == (3 << (BITSM1 - 2)) + 2
|| s == 5 || s == -5 || s == -63 || s == -64 || s == -65
|| s == -8189 || s == -8191 || s == -8192 || s == -8193
|| s == -8250 || s == -8255 || s == -8256 || s == -8257
|| s == __INT_MAX__)
return;
}
else
{
if (s == (-0x4000 << BITSH) - 1 || s == (-0x7000 << BITSH) - 1
|| s == (-0x5fcf << BITSH) - 1 || s == (-0x4041 << BITSH)
|| s == (-0x7000 << BITSH) || s == -__INT_MAX__ - 1
|| s == -__INT_MAX__ + 4 || s == -__INT_MAX__ + 7)
return;
}
abort ();
}
void
f17 (int s)
{
if ((s & ((-0x4000 << BITSH) | 1)) != -__INT_MAX__ - 1)
{
if (s == 0 || s == 0x1cbf || s == 0x1cc0 || s == 0x1fff || s == 0x2000
|| s == 0x20 || s == 0x3cbf || s == 0x3cc0 || s == 0x3f
|| s == (-0x4000 << BITSH) - 1 || s == (-0x1000 << BITSH) - 1
|| s == (-0x7000 << BITSH) - 1 || s == (-0x5fcf << BITSH) - 1
|| s == (-0x4000 << BITSH) || s == (-0x1000 << BITSH)
|| s == (-0x4000 << BITSH) + 1 || s == 1 || s == -1 || s == -15
|| s == -15550 || s == -15552 || s == (0x7000 << BITSH) - 1
|| s == (0x7000 << BITSH) || s == (1 << (BITSM1 - 2))
|| s == (1 << (BITSM1 - 2)) - 1 || s == 2 || s == 24 || s == -32
|| s == (3 << (BITSM1 - 2)) + 2 || s == 5 || s == -5 || s == -63
|| s == -64 || s == -65 || s == -__INT_MAX__ + 4 || s == -8189
|| s == -8191 || s == -8192 || s == -8193 || s == -8250
|| s == -8255 || s == -8256 || s == -8257 || s == __INT_MAX__)
return;
}
else
{
if (s == (-0x4041 << BITSH) || s == (-0x7000 << BITSH)
|| s == -__INT_MAX__ - 1 || s == -__INT_MAX__ + 7)
return;
}
abort ();
}
void
f18 (int s)
{
if ((s & ((-0x4000 << BITSH) | 1)) != ((-0x4000 << BITSH) | 1))
{
if (s == 0 || s == 0x1cbf || s == 0x1cc0 || s == 0x1fff || s == 0x2000
|| s == 0x20 || s == 0x3cbf || s == 0x3cc0 || s == 0x3f
|| s == (-0x4000 << BITSH) - 1 || s == (-0x7000 << BITSH) - 1
|| s == (-0x5fcf << BITSH) - 1 || s == (-0x4041 << BITSH)
|| s == (-0x4000 << BITSH) || s == (-0x1000 << BITSH)
|| s == (-0x7000 << BITSH) || s == 1 || s == -15550 || s == -15552
|| s == (0x7000 << BITSH) - 1 || s == (0x7000 << BITSH)
|| s == (1 << (BITSM1 - 2)) || s == (1 << (BITSM1 - 2)) - 1
|| s == -__INT_MAX__ - 1 || s == 2 || s == 24 || s == -32
|| s == (3 << (BITSM1 - 2)) + 2 || s == 5 || s == -64
|| s == -__INT_MAX__ + 4 || s == -8192 || s == -8250 || s == -8256
|| s == __INT_MAX__ || s == -__INT_MAX__ + 7)
return;
}
else
{
if (s == (-0x1000 << BITSH) - 1 || s == (-0x4000 << BITSH) + 1
|| s == -1 || s == -15 || s == -5 || s == -63 || s == -65
|| s == -8189 || s == -8191 || s == -8193 || s == -8255
|| s == -8257)
return;
}
abort ();
}
void
f19 (int s)
{
if ((s & ((-0x4000 << BITSH) | 1)) != ((0x4000 << BITSH) | 1))
{
if (s == 0 || s == 0x1cbf || s == 0x1cc0 || s == 0x1fff || s == 0x2000
|| s == 0x20 || s == 0x3cbf || s == 0x3cc0 || s == 0x3f
|| s == (-0x4000 << BITSH) - 1 || s == (-0x1000 << BITSH) - 1
|| s == (-0x7000 << BITSH) - 1 || s == (-0x5fcf << BITSH) - 1
|| s == (-0x4041 << BITSH) || s == (-0x4000 << BITSH)
|| s == (-0x1000 << BITSH) || s == (-0x7000 << BITSH)
|| s == (-0x4000 << BITSH) + 1 || s == 1 || s == -1 || s == -15
|| s == -15550 || s == -15552 || s == (0x7000 << BITSH)
|| s == (1 << (BITSM1 - 2)) || s == (1 << (BITSM1 - 2)) - 1
|| s == -__INT_MAX__ - 1 || s == 2 || s == 24 || s == -32
|| s == (3 << (BITSM1 - 2)) + 2 || s == 5 || s == -5 || s == -63
|| s == -64 || s == -65 || s == -__INT_MAX__ + 4 || s == -8189
|| s == -8191 || s == -8192 || s == -8193 || s == -8250
|| s == -8255 || s == -8256 || s == -8257 || s == -__INT_MAX__ + 7)
return;
}
else
{
if (s == (0x7000 << BITSH) - 1 || s == __INT_MAX__)
return;
}
abort ();
}
void
f20 (int s)
{
if ((s & (-0x1000 << BITSH)) != -__INT_MAX__ - 1)
{
if (s == 0 || s == 0x1cbf || s == 0x1cc0 || s == 0x1fff || s == 0x2000
|| s == 0x20 || s == 0x3cbf || s == 0x3cc0 || s == 0x3f
|| s == (-0x4000 << BITSH) - 1 || s == (-0x1000 << BITSH) - 1
|| s == (-0x5fcf << BITSH) - 1 || s == (-0x4041 << BITSH)
|| s == (-0x4000 << BITSH) || s == (-0x1000 << BITSH)
|| s == (-0x7000 << BITSH) || s == (-0x4000 << BITSH) + 1 || s == 1
|| s == -1 || s == -15 || s == -15550 || s == -15552
|| s == (0x7000 << BITSH) - 1 || s == (0x7000 << BITSH)
|| s == (1 << (BITSM1 - 2)) || s == (1 << (BITSM1 - 2)) - 1
|| s == 2 || s == 24 || s == -32 || s == (3 << (BITSM1 - 2)) + 2
|| s == 5 || s == -5 || s == -63 || s == -64 || s == -65
|| s == -8189 || s == -8191 || s == -8192 || s == -8193
|| s == -8250 || s == -8255 || s == -8256 || s == -8257
|| s == __INT_MAX__)
return;
}
else
{
if (s == (-0x7000 << BITSH) - 1 || s == -__INT_MAX__ - 1
|| s == -__INT_MAX__ + 4 || s == -__INT_MAX__ + 7)
return;
}
abort ();
}
void
f21 (int s)
{
if ((s & (-0x1000 << BITSH)) != (-0x1000 << BITSH))
{
if (s == 0 || s == 0x1cbf || s == 0x1cc0 || s == 0x1fff || s == 0x2000
|| s == 0x20 || s == 0x3cbf || s == 0x3cc0 || s == 0x3f
|| s == (-0x4000 << BITSH) - 1 || s == (-0x1000 << BITSH) - 1
|| s == (-0x7000 << BITSH) - 1 || s == (-0x5fcf << BITSH) - 1
|| s == (-0x4041 << BITSH) || s == (-0x4000 << BITSH)
|| s == (-0x7000 << BITSH) || s == (-0x4000 << BITSH) + 1 || s == 1
|| s == (0x7000 << BITSH) - 1 || s == (0x7000 << BITSH)
|| s == (1 << (BITSM1 - 2)) || s == (1 << (BITSM1 - 2)) - 1
|| s == -__INT_MAX__ - 1 || s == 2 || s == 24
|| s == (3 << (BITSM1 - 2)) + 2 || s == 5 || s == -__INT_MAX__ + 4
|| s == __INT_MAX__ || s == -__INT_MAX__ + 7)
return;
}
else
{
if (s == (-0x1000 << BITSH) || s == -1 || s == -15 || s == -15550
|| s == -15552 || s == -32 || s == -5 || s == -63 || s == -64
|| s == -65 || s == -8189 || s == -8191 || s == -8192 || s == -8193
|| s == -8250 || s == -8255 || s == -8256 || s == -8257)
return;
}
abort ();
}
void
f22 (int s)
{
if ((s & (-0x1000 << BITSH)) != (0x7000 << BITSH))
{
if (s == 0 || s == 0x1cbf || s == 0x1cc0 || s == 0x1fff || s == 0x2000
|| s == 0x20 || s == 0x3cbf || s == 0x3cc0 || s == 0x3f
|| s == (-0x4000 << BITSH) - 1 || s == (-0x1000 << BITSH) - 1
|| s == (-0x7000 << BITSH) - 1 || s == (-0x5fcf << BITSH) - 1
|| s == (-0x4041 << BITSH) || s == (-0x4000 << BITSH)
|| s == (-0x1000 << BITSH) || s == (-0x7000 << BITSH)
|| s == (-0x4000 << BITSH) + 1 || s == 1 || s == -1 || s == -15
|| s == -15550 || s == -15552 || s == (0x7000 << BITSH) - 1
|| s == (1 << (BITSM1 - 2)) || s == (1 << (BITSM1 - 2)) - 1
|| s == -__INT_MAX__ - 1 || s == 2 || s == 24 || s == -32
|| s == (3 << (BITSM1 - 2)) + 2 || s == 5 || s == -5 || s == -63
|| s == -64 || s == -65 || s == -__INT_MAX__ + 4 || s == -8189
|| s == -8191 || s == -8192 || s == -8193 || s == -8250
|| s == -8255 || s == -8256 || s == -8257 || s == -__INT_MAX__ + 7)
return;
}
else
{
if (s == (0x7000 << BITSH) || s == __INT_MAX__)
return;
}
abort ();
}
void
f23 (unsigned int s)
{
if ((s & (0xf000U << BITSH)) != (0x7000 << BITSH))
{
if (s == 0 || s == 0x1cbf || s == 0x1cc0 || s == 0x1fff || s == 0x2000
|| s == 0x20 || s == 0x3cbf || s == 0x3cc0 || s == 0x3f
|| s == (0xc000U << BITSH) - 1 || s == (0xf000U << BITSH) - 1
|| s == (0x9000U << BITSH) - 1 || s == (0xa031U << BITSH) - 1
|| s == (0xbfbfU << BITSH) || s == (0xc000U << BITSH)
|| s == (0xf000U << BITSH) || s == (0x9000U << BITSH)
|| s == (0xc000U << BITSH) + 1 || s == 1 || s == -1U || s == -15U
|| s == -15550U || s == -15552U || s == (0x7000 << BITSH) - 1
|| s == (1 << (BITSM1 - 2)) || s == (1 << (BITSM1 - 2)) - 1
|| s == 1U + __INT_MAX__ || s == 2 || s == 24 || s == -32U
|| s == (3 << (BITSM1 - 2)) + 2 || s == 5 || s == -5U || s == -63U
|| s == -64U || s == -65U || s == 6U + __INT_MAX__ || s == -8189U
|| s == -8191U || s == -8192U || s == -8193U || s == -8250U
|| s == -8255U || s == -8256U || s == -8257U
|| s == __INT_MAX__ + 9U)
return;
}
else
{
if (s == (0x7000 << BITSH) || s == __INT_MAX__)
return;
}
abort ();
}
void
f24 (unsigned int s)
{
if ((s & (0xf000U << BITSH)) != (0x8000U << BITSH))
{
if (s == 0 || s == 0x1cbf || s == 0x1cc0 || s == 0x1fff || s == 0x2000
|| s == 0x20 || s == 0x3cbf || s == 0x3cc0 || s == 0x3f
|| s == (0xc000U << BITSH) - 1 || s == (0xf000U << BITSH) - 1
|| s == (0xa031U << BITSH) - 1 || s == (0xbfbfU << BITSH)
|| s == (0xc000U << BITSH) || s == (0xf000U << BITSH)
|| s == (0x9000U << BITSH) || s == (0xc000U << BITSH) + 1 || s == 1
|| s == -1U || s == -15U || s == -15550U || s == -15552U
|| s == (0x7000 << BITSH) - 1 || s == (0x7000 << BITSH)
|| s == (1 << (BITSM1 - 2)) || s == (1 << (BITSM1 - 2)) - 1
|| s == 2 || s == 24 || s == -32U || s == (3 << (BITSM1 - 2)) + 2
|| s == 5 || s == -5U || s == -63U || s == -64U || s == -65U
|| s == -8189U || s == -8191U || s == -8192U || s == -8193U
|| s == -8250U || s == -8255U || s == -8256U || s == -8257U
|| s == __INT_MAX__)
return;
}
else
{
if (s == (0x9000U << BITSH) - 1 || s == 1U + __INT_MAX__
|| s == 6U + __INT_MAX__ || s == __INT_MAX__ + 9U)
return;
}
abort ();
}
int svals[] = {
0,
0x1cbf,
0x1cc0,
0x1fff,
0x2000,
0x20,
0x3cbf,
0x3cc0,
0x3f,
(-0x4000 << BITSH) - 1,
(-0x1000 << BITSH) - 1,
(-0x7000 << BITSH) - 1,
(-0x5fcf << BITSH) - 1,
(-0x4041 << BITSH),
(-0x4000 << BITSH),
(-0x1000 << BITSH),
(-0x7000 << BITSH),
(-0x4000 << BITSH) + 1,
1,
-1,
-15,
-15550,
-15552,
(0x7000 << BITSH) - 1,
(0x7000 << BITSH),
(1 << (BITSM1 - 2)),
(1 << (BITSM1 - 2)) - 1,
-__INT_MAX__ - 1,
2,
24,
-32,
(3 << (BITSM1 - 2)) + 2,
5,
-5,
-63,
-64,
-65,
-__INT_MAX__ + 4,
-8189,
-8191,
-8192,
-8193,
-8250,
-8255,
-8256,
-8257,
__INT_MAX__,
-__INT_MAX__ + 7,
};
unsigned int uvals[] = {
0,
0x1cbf,
0x1cc0,
0x1fff,
0x2000,
0x20,
0x3cbf,
0x3cc0,
0x3f,
(0xc000U << BITSH) - 1,
(0xf000U << BITSH) - 1,
(0x9000U << BITSH) - 1,
(0xa031U << BITSH) - 1,
(0xbfbfU << BITSH),
(0xc000U << BITSH),
(0xf000U << BITSH),
(0x9000U << BITSH),
(0xc000U << BITSH) + 1,
1,
-1U,
-15U,
-15550U,
-15552U,
(0x7000 << BITSH) - 1,
(0x7000 << BITSH),
(1 << (BITSM1 - 2)),
(1 << (BITSM1 - 2)) - 1,
1U + __INT_MAX__,
2,
24,
-32U,
(3 << (BITSM1 - 2)) + 2,
5,
-5U,
-63U,
-64U,
-65U,
6U + __INT_MAX__,
-8189U,
-8191U,
-8192U,
-8193U,
-8250U,
-8255U,
-8256U,
-8257U,
__INT_MAX__,
__INT_MAX__ + 9U,
};
int
main ()
{
int i;
for (i = 0; i < sizeof (svals) / sizeof (svals[0]); i++)
{
f2 (svals[i]);
f4 (svals[i]);
f5 (svals[i]);
f7 (svals[i]);
f8 (svals[i]);
f11 (svals[i]);
f12 (svals[i]);
f15 (svals[i]);
f16 (svals[i]);
f17 (svals[i]);
f18 (svals[i]);
f19 (svals[i]);
f20 (svals[i]);
f21 (svals[i]);
f22 (svals[i]);
}
for (i = 0; i < sizeof (uvals) / sizeof (uvals[0]); i++)
{
f1 (uvals[i]);
f3 (uvals[i]);
f6 (uvals[i]);
f9 (uvals[i]);
f10 (uvals[i]);
f13 (uvals[i]);
f14 (uvals[i]);
f23 (uvals[i]);
f24 (uvals[i]);
}
return 0;
}

View File

@ -4338,6 +4338,34 @@ extract_code_and_val_from_cond_with_ops (tree name, enum tree_code cond_code,
return true;
}
/* Find out smallest RES where RES > VAL && (RES & MASK) == RES, if any
(otherwise return VAL). VAL and MASK must be zero-extended for
precision PREC. If SGNBIT is non-zero, first xor VAL with SGNBIT
(to transform signed values into unsigned) and at the end xor
SGNBIT back. */
static double_int
masked_increment (double_int val, double_int mask, double_int sgnbit,
unsigned int prec)
{
double_int bit = double_int_one, res;
unsigned int i;
val = double_int_xor (val, sgnbit);
for (i = 0; i < prec; i++, bit = double_int_add (bit, bit))
{
res = mask;
if (double_int_zero_p (double_int_and (res, bit)))
continue;
res = double_int_sub (bit, double_int_one);
res = double_int_and_not (double_int_add (val, bit), res);
res = double_int_and (res, mask);
if (double_int_ucmp (res, val) > 0)
return double_int_xor (res, sgnbit);
}
return double_int_xor (val, sgnbit);
}
/* Try to register an edge assertion for SSA name NAME on edge E for
the condition COND contributing to the conditional jump pointed to by BSI.
Invert the condition COND if INVERT is true.
@ -4466,7 +4494,7 @@ register_edge_assert_for_2 (tree name, edge e, gimple_stmt_iterator bsi,
&& TREE_CODE (val) == INTEGER_CST)
{
gimple def_stmt = SSA_NAME_DEF_STMT (name);
tree name2 = NULL_TREE, cst2 = NULL_TREE;
tree name2 = NULL_TREE, names[2], cst2 = NULL_TREE;
tree val2 = NULL_TREE;
double_int mask = double_int_zero;
unsigned int prec = TYPE_PRECISION (TREE_TYPE (val));
@ -4591,6 +4619,248 @@ register_edge_assert_for_2 (tree name, edge e, gimple_stmt_iterator bsi,
retval = true;
}
}
/* Add asserts for NAME cmp CST and NAME being defined as
NAME = NAME2 & CST2.
Extract CST2 from the and. */
names[0] = NULL_TREE;
names[1] = NULL_TREE;
cst2 = NULL_TREE;
if (is_gimple_assign (def_stmt)
&& gimple_assign_rhs_code (def_stmt) == BIT_AND_EXPR)
{
name2 = gimple_assign_rhs1 (def_stmt);
cst2 = gimple_assign_rhs2 (def_stmt);
if (TREE_CODE (name2) == SSA_NAME
&& INTEGRAL_TYPE_P (TREE_TYPE (name2))
&& TREE_CODE (cst2) == INTEGER_CST
&& !integer_zerop (cst2)
&& prec <= 2 * HOST_BITS_PER_WIDE_INT
&& (prec > 1
|| TYPE_UNSIGNED (TREE_TYPE (val))))
{
gimple def_stmt2 = SSA_NAME_DEF_STMT (name2);
if (gimple_assign_cast_p (def_stmt2))
{
names[1] = gimple_assign_rhs1 (def_stmt2);
if (!CONVERT_EXPR_CODE_P (gimple_assign_rhs_code (def_stmt2))
|| !INTEGRAL_TYPE_P (TREE_TYPE (names[1]))
|| (TYPE_PRECISION (TREE_TYPE (name2))
!= TYPE_PRECISION (TREE_TYPE (names[1])))
|| !live_on_edge (e, names[1])
|| has_single_use (names[1]))
names[1] = NULL_TREE;
}
if (live_on_edge (e, name2)
&& !has_single_use (name2))
names[0] = name2;
}
}
if (names[0] || names[1])
{
double_int minv, maxv = double_int_zero, valv, cst2v;
double_int tem, sgnbit;
bool valid_p = false, valn = false, cst2n = false;
enum tree_code ccode = comp_code;
valv = double_int_zext (tree_to_double_int (val), prec);
cst2v = double_int_zext (tree_to_double_int (cst2), prec);
if (!TYPE_UNSIGNED (TREE_TYPE (val)))
{
valn = double_int_negative_p (double_int_sext (valv, prec));
cst2n = double_int_negative_p (double_int_sext (cst2v, prec));
}
/* If CST2 doesn't have most significant bit set,
but VAL is negative, we have comparison like
if ((x & 0x123) > -4) (always true). Just give up. */
if (!cst2n && valn)
ccode = ERROR_MARK;
if (cst2n)
sgnbit = double_int_zext (double_int_lshift (double_int_one,
prec - 1, prec,
false), prec);
else
sgnbit = double_int_zero;
minv = double_int_and (valv, cst2v);
switch (ccode)
{
case EQ_EXPR:
/* Minimum unsigned value for equality is VAL & CST2
(should be equal to VAL, otherwise we probably should
have folded the comparison into false) and
maximum unsigned value is VAL | ~CST2. */
maxv = double_int_ior (valv, double_int_not (cst2v));
maxv = double_int_zext (maxv, prec);
valid_p = true;
break;
case NE_EXPR:
tem = double_int_ior (valv, double_int_not (cst2v));
tem = double_int_zext (tem, prec);
/* If VAL is 0, handle (X & CST2) != 0 as (X & CST2) > 0U. */
if (double_int_zero_p (valv))
{
cst2n = false;
sgnbit = double_int_zero;
goto gt_expr;
}
/* If (VAL | ~CST2) is all ones, handle it as
(X & CST2) < VAL. */
if (double_int_equal_p (tem, double_int_mask (prec)))
{
cst2n = false;
valn = false;
sgnbit = double_int_zero;
goto lt_expr;
}
if (!cst2n
&& double_int_negative_p (double_int_sext (cst2v, prec)))
sgnbit = double_int_zext (double_int_lshift (double_int_one,
prec - 1, prec,
false), prec);
if (!double_int_zero_p (sgnbit))
{
if (double_int_equal_p (valv, sgnbit))
{
cst2n = true;
valn = true;
goto gt_expr;
}
if (double_int_equal_p (tem, double_int_mask (prec - 1)))
{
cst2n = true;
goto lt_expr;
}
if (!cst2n)
sgnbit = double_int_zero;
}
break;
case GE_EXPR:
/* Minimum unsigned value for >= if (VAL & CST2) == VAL
is VAL and maximum unsigned value is ~0. For signed
comparison, if CST2 doesn't have most significant bit
set, handle it similarly. If CST2 has MSB set,
the minimum is the same, and maximum is ~0U/2. */
if (!double_int_equal_p (minv, valv))
{
/* If (VAL & CST2) != VAL, X & CST2 can't be equal to
VAL. */
minv = masked_increment (valv, cst2v, sgnbit, prec);
if (double_int_equal_p (minv, valv))
break;
}
maxv = double_int_mask (prec - (cst2n ? 1 : 0));
valid_p = true;
break;
case GT_EXPR:
gt_expr:
/* Find out smallest MINV where MINV > VAL
&& (MINV & CST2) == MINV, if any. If VAL is signed and
CST2 has MSB set, compute it biased by 1 << (prec - 1). */
minv = masked_increment (valv, cst2v, sgnbit, prec);
if (double_int_equal_p (minv, valv))
break;
maxv = double_int_mask (prec - (cst2n ? 1 : 0));
valid_p = true;
break;
case LE_EXPR:
/* Minimum unsigned value for <= is 0 and maximum
unsigned value is VAL | ~CST2 if (VAL & CST2) == VAL.
Otherwise, find smallest VAL2 where VAL2 > VAL
&& (VAL2 & CST2) == VAL2 and use (VAL2 - 1) | ~CST2
as maximum.
For signed comparison, if CST2 doesn't have most
significant bit set, handle it similarly. If CST2 has
MSB set, the maximum is the same and minimum is INT_MIN. */
if (double_int_equal_p (minv, valv))
maxv = valv;
else
{
maxv = masked_increment (valv, cst2v, sgnbit, prec);
if (double_int_equal_p (maxv, valv))
break;
maxv = double_int_sub (maxv, double_int_one);
}
maxv = double_int_ior (maxv, double_int_not (cst2v));
maxv = double_int_zext (maxv, prec);
minv = sgnbit;
valid_p = true;
break;
case LT_EXPR:
lt_expr:
/* Minimum unsigned value for < is 0 and maximum
unsigned value is (VAL-1) | ~CST2 if (VAL & CST2) == VAL.
Otherwise, find smallest VAL2 where VAL2 > VAL
&& (VAL2 & CST2) == VAL2 and use (VAL2 - 1) | ~CST2
as maximum.
For signed comparison, if CST2 doesn't have most
significant bit set, handle it similarly. If CST2 has
MSB set, the maximum is the same and minimum is INT_MIN. */
if (double_int_equal_p (minv, valv))
{
if (double_int_equal_p (valv, sgnbit))
break;
maxv = valv;
}
else
{
maxv = masked_increment (valv, cst2v, sgnbit, prec);
if (double_int_equal_p (maxv, valv))
break;
}
maxv = double_int_sub (maxv, double_int_one);
maxv = double_int_ior (maxv, double_int_not (cst2v));
maxv = double_int_zext (maxv, prec);
minv = sgnbit;
valid_p = true;
break;
default:
break;
}
if (valid_p
&& !double_int_equal_p (double_int_zext (double_int_sub (maxv,
minv),
prec),
double_int_mask (prec)))
{
tree tmp, new_val, type;
int i;
for (i = 0; i < 2; i++)
if (names[i])
{
double_int maxv2 = maxv;
tmp = names[i];
type = TREE_TYPE (names[i]);
if (!TYPE_UNSIGNED (type))
{
type = build_nonstandard_integer_type (prec, 1);
tmp = build1 (NOP_EXPR, type, names[i]);
}
if (!double_int_zero_p (minv))
{
tmp = build2 (PLUS_EXPR, type, tmp,
double_int_to_tree (type,
double_int_neg (minv)));
maxv2 = double_int_sub (maxv, minv);
}
new_val = double_int_to_tree (type, maxv2);
if (dump_file)
{
fprintf (dump_file, "Adding assert for ");
print_generic_expr (dump_file, names[i], 0);
fprintf (dump_file, " from ");
print_generic_expr (dump_file, tmp, 0);
fprintf (dump_file, "\n");
}
register_new_assert_for (names[i], tmp, LE_EXPR,
new_val, NULL, e, bsi);
retval = true;
}
}
}
}
return retval;