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vrp82.c: New test.

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2012-09-15  Tom de Vries  <tom@codesourcery.com>

	* gcc.dg/tree-ssa/vrp82.c: New test.
	* gcc.dg/tree-ssa/vrp83.c: Same.
	* gcc.dg/tree-ssa/vrp84.c: Same.

From-SVN: r191352
This commit is contained in:
Tom de Vries 2012-09-15 21:00:38 +00:00 • committed by Tom de Vries
parent b25d9e22e4
commit c7e04bd6be
4 changed files with 144 additions and 0 deletions
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6
gcc/testsuite/ChangeLog
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@ -1,3 +1,9 @@
2012-09-15 Tom de Vries <tom@codesourcery.com>
* gcc.dg/tree-ssa/vrp82.c: New test.
* gcc.dg/tree-ssa/vrp83.c: Same.
* gcc.dg/tree-ssa/vrp84.c: Same.
2012-09-15 Tom de Vries <tom@codesourcery.com>
* gcc.dg/tree-ssa/vrp80-2.c: Rename to ...

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gcc/testsuite/gcc.dg/tree-ssa/vrp82.c Normal file
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/* { dg-do link } */
/* { dg-options "-O2" } */
extern void link_error (void);
void
f2 (int c, int b)
{
int s = 0;
if (c == 0)
s += 1;
else if (c < 1)
s -= 1;
/* s in [-1, 1]. */
b = (b & 1) + 1;
/* b in range [1, 2]. */
b = s << b;
/* b in range [-4, 4]. */
if (b == -5 || b == 5)
link_error ();
}
void
f3 (int s, int b)
{
if (s >> 3 == -2)
{
/* s in range [-16, -9]. */
b = (b & 1) + 1;
/* b in range [1, 2]. */
b = s << b;
/* b in range [bmin << smax, bmax << smin],
== [-16 << 2, -9 << 1]
== [-64, -18]. */
if (b == -65 || b == -17)
link_error ();
}
}
void
f4 (unsigned int s, unsigned int b)
{
s |= ~0xffU;
/* s in [0xffffff00, 0xffffffff]. */
b = (b & 1) + 1;
/* b in [1, 2]. */
b = s << b;
/* s in [0xfffffc00, 0xfffffffe]. */
if (b == ~0x3ffU - 1 || b == ~0x1U + 1)
link_error ();
}
int
main ()
{
return 0;
}

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gcc/testsuite/gcc.dg/tree-ssa/vrp83.c Normal file
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/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-vrp1" } */
extern void vrp_keep (void);
void
f2 (int c, int b)
{
int s = 0;
if (c == 0)
s += 1;
else if (c < 1)
s -= 1;
/* s in [-1, 1]. */
b = (b & 1) + 1;
/* b in range [1, 2]. */
b = s << b;
/* b in range [-4, 4]. */
if (b == -4)
vrp_keep ();
if (b == 4)
vrp_keep ();
}
void
f3 (int s, int b)
{
if (s >> 3 == -2)
{
/* s in range [-16, -9]. */
b = (b & 1) + 1;
/* b in range [1, 2]. */
b = s << b;
/* b in range [bmin << smax, bmax << smin],
== [-16 << 2, -9 << 1]
== [-64, -18]. */
if (b == -64)
vrp_keep ();
if (b == -18)
vrp_keep ();
}
}
void
f4 (unsigned int s, unsigned int b)
{
s |= ~(0xffU);
/* s in [0xffffff00, 0xffffffff]. */
b = (b & 1) + 1;
/* b in [1, 2]. */
b = s << b;
/* s in [0xfffffc00, 0xfffffffe]. */
if (b == ~0x3ffU)
vrp_keep ();
if (b == ~0x1U)
vrp_keep ();
}
/* { dg-final { scan-tree-dump-times "vrp_keep \\(" 6 "vrp1"} } */
/* { dg-final { cleanup-tree-dump "vrp1" } } */

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gcc/testsuite/gcc.dg/tree-ssa/vrp84.c Normal file
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/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-vrp1" } */
extern void vrp_keep (void);
void
f2 (int s, int b)
{
if (s > 1)
s = 1;
/* s in [minint, 1]. */
b = (b & 1) + 1;
/* b in range [1, 2]. */
b = s << b;
/* b in range [minint+4, maxint-3]. */
if (b == -2)
vrp_keep ();
}
/* { dg-final { scan-tree-dump-times "vrp_keep \\(" 1 "vrp1"} } */
/* { dg-final { cleanup-tree-dump "vrp1" } } */