Makefile.in (hwint.o): Depend on DIAGNOSTIC_CORE_H.

2011-08-01  Sebastian Pop  <sebastian.pop@amd.com>
	    Joseph Myers  <joseph@codesourcery.com>

	* Makefile.in (hwint.o): Depend on DIAGNOSTIC_CORE_H.
	* hwint.c: Include diagnostic-core.h.
	(abs_hwi): New.
	(gcd): Moved here...
	(pos_mul_hwi): New.
	(mul_hwi): New.
	(least_common_multiple): Moved here...
	* hwint.h (gcd): ... from here.
	(least_common_multiple): ... from here.
	(HOST_WIDE_INT_MIN): New.
	(HOST_WIDE_INT_MAX): New.
	(abs_hwi): Declared.
	(gcd): Declared.
	(pos_mul_hwi): Declared.
	(mul_hwi): Declared.
	(least_common_multiple): Declared.
	* omega.c (check_pos_mul): Removed.
	(check_mul): Removed.
	(omega_solve_geq): Use pos_mul_hwi instead of check_pos_mul and
	mul_hwi instead of check_mul.

Co-Authored-By: Joseph Myers <joseph@codesourcery.com>

From-SVN: r177075
This commit is contained in:
Sebastian Pop 2011-08-01 21:53:07 +00:00 committed by Paolo Carlini
parent 4bbff96e36
commit 3c67fd9c30
5 changed files with 115 additions and 67 deletions

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@ -1,3 +1,27 @@
2011-08-01 Sebastian Pop <sebastian.pop@amd.com>
Joseph Myers <joseph@codesourcery.com>
* Makefile.in (hwint.o): Depend on DIAGNOSTIC_CORE_H.
* hwint.c: Include diagnostic-core.h.
(abs_hwi): New.
(gcd): Moved here...
(pos_mul_hwi): New.
(mul_hwi): New.
(least_common_multiple): Moved here...
* hwint.h (gcd): ... from here.
(least_common_multiple): ... from here.
(HOST_WIDE_INT_MIN): New.
(HOST_WIDE_INT_MAX): New.
(abs_hwi): Declared.
(gcd): Declared.
(pos_mul_hwi): Declared.
(mul_hwi): Declared.
(least_common_multiple): Declared.
* omega.c (check_pos_mul): Removed.
(check_mul): Removed.
(omega_solve_geq): Use pos_mul_hwi instead of check_pos_mul and
mul_hwi instead of check_mul.
2011-08-01 Richard Henderson <rth@redhat.com>
PR target/49881

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@ -2837,7 +2837,7 @@ toplev.o : toplev.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) $(TREE_H) \
-DTARGET_NAME=\"$(target_noncanonical)\" \
-c $(srcdir)/toplev.c $(OUTPUT_OPTION)
hwint.o : hwint.c $(CONFIG_H) $(SYSTEM_H)
hwint.o : hwint.c $(CONFIG_H) $(SYSTEM_H) $(DIAGNOSTIC_CORE_H)
passes.o : passes.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) $(TREE_H) \
$(RTL_H) $(FUNCTION_H) $(FLAGS_H) xcoffout.h $(INPUT_H) $(INSN_ATTR_H) output.h \

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@ -21,6 +21,7 @@ along with GCC; see the file COPYING3. If not see
#include "config.h"
#include "system.h"
#include "diagnostic-core.h"
#if GCC_VERSION < 3004
@ -98,3 +99,76 @@ ffs_hwi (unsigned HOST_WIDE_INT x)
}
#endif /* GCC_VERSION < 3004 */
/* Compute the absolute value of X. */
HOST_WIDE_INT
abs_hwi (HOST_WIDE_INT x)
{
gcc_checking_assert (x != HOST_WIDE_INT_MIN);
return x >= 0 ? x : -x;
}
/* Compute the greatest common divisor of two numbers A and B using
Euclid's algorithm. */
HOST_WIDE_INT
gcd (HOST_WIDE_INT a, HOST_WIDE_INT b)
{
HOST_WIDE_INT x, y, z;
x = abs_hwi (a);
y = abs_hwi (b);
while (x > 0)
{
z = y % x;
y = x;
x = z;
}
return y;
}
/* For X and Y positive integers, return X multiplied by Y and check
that the result does not overflow. */
HOST_WIDE_INT
pos_mul_hwi (HOST_WIDE_INT x, HOST_WIDE_INT y)
{
if (x != 0)
gcc_checking_assert ((HOST_WIDE_INT_MAX) / x >= y);
return x * y;
}
/* Return X multiplied by Y and check that the result does not
overflow. */
HOST_WIDE_INT
mul_hwi (HOST_WIDE_INT x, HOST_WIDE_INT y)
{
gcc_checking_assert (x != HOST_WIDE_INT_MIN
&& y != HOST_WIDE_INT_MIN);
if (x >= 0)
{
if (y >= 0)
return pos_mul_hwi (x, y);
return -pos_mul_hwi (x, -y);
}
if (y >= 0)
return -pos_mul_hwi (-x, y);
return pos_mul_hwi (-x, -y);
}
/* Compute the least common multiple of two numbers A and B . */
HOST_WIDE_INT
least_common_multiple (HOST_WIDE_INT a, HOST_WIDE_INT b)
{
return mul_hwi (abs_hwi (a) / gcd (a, b), abs_hwi (b));
}

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@ -228,33 +228,14 @@ exact_log2 (unsigned HOST_WIDE_INT x)
#endif /* GCC_VERSION >= 3004 */
/* Compute the greatest common divisor of two numbers using
Euclid's algorithm. */
#define HOST_WIDE_INT_MIN (HOST_WIDE_INT) \
((unsigned HOST_WIDE_INT) 1 << (HOST_BITS_PER_WIDE_INT - 1))
#define HOST_WIDE_INT_MAX (~(HOST_WIDE_INT_MIN))
static inline int
gcd (int a, int b)
{
int x, y, z;
x = abs (a);
y = abs (b);
while (x > 0)
{
z = y % x;
y = x;
x = z;
}
return y;
}
/* Compute the least common multiple of two numbers A and B . */
static inline int
least_common_multiple (int a, int b)
{
return (abs (a) * abs (b) / gcd (a, b));
}
extern HOST_WIDE_INT abs_hwi (HOST_WIDE_INT);
extern HOST_WIDE_INT gcd (HOST_WIDE_INT, HOST_WIDE_INT);
extern HOST_WIDE_INT pos_mul_hwi (HOST_WIDE_INT, HOST_WIDE_INT);
extern HOST_WIDE_INT mul_hwi (HOST_WIDE_INT, HOST_WIDE_INT);
extern HOST_WIDE_INT least_common_multiple (HOST_WIDE_INT, HOST_WIDE_INT);
#endif /* ! GCC_HWINT_H */

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@ -110,37 +110,6 @@ int_mod (int a, int b)
return a - b * int_div (a, b);
}
/* For X and Y positive integers, return X multiplied by Y and check
that the result does not overflow. */
static inline int
check_pos_mul (int x, int y)
{
if (x != 0)
gcc_assert ((INT_MAX) / x > y);
return x * y;
}
/* Return X multiplied by Y and check that the result does not
overflow. */
static inline int
check_mul (int x, int y)
{
if (x >= 0)
{
if (y >= 0)
return check_pos_mul (x, y);
else
return -check_pos_mul (x, -y);
}
else if (y >= 0)
return -check_pos_mul (-x, y);
else
return check_pos_mul (-x, -y);
}
/* Test whether equation E is red. */
static inline bool
@ -3907,8 +3876,8 @@ omega_solve_geq (omega_pb pb, enum omega_result desired_res)
max_splinters += -minC - 1;
else
max_splinters +=
check_pos_mul ((pb->geqs[e].coef[i] - 1),
(-minC - 1)) / (-minC) + 1;
pos_mul_hwi ((pb->geqs[e].coef[i] - 1),
(-minC - 1)) / (-minC) + 1;
}
/* #ifdef Omega3 */
@ -4321,8 +4290,8 @@ omega_solve_geq (omega_pb pb, enum omega_result desired_res)
for (k = 0; k <= n_vars; k++)
pb->geqs[Ue].coef[k] =
check_mul (pb->geqs[Ue].coef[k], Lc) +
check_mul (lbeqn->coef[k], Uc);
mul_hwi (pb->geqs[Ue].coef[k], Lc) +
mul_hwi (lbeqn->coef[k], Uc);
if (dump_file && (dump_flags & TDF_DETAILS))
{
@ -4384,8 +4353,8 @@ omega_solve_geq (omega_pb pb, enum omega_result desired_res)
for (k = n_vars; k >= 0; k--)
pb->geqs[e2].coef[k] =
check_mul (pb->geqs[Ue].coef[k], Lc) +
check_mul (pb->geqs[Le].coef[k], Uc);
mul_hwi (pb->geqs[Ue].coef[k], Lc) +
mul_hwi (pb->geqs[Le].coef[k], Uc);
pb->geqs[e2].coef[n_vars + 1] = 0;
pb->geqs[e2].touched = 1;
@ -4506,8 +4475,8 @@ omega_solve_geq (omega_pb pb, enum omega_result desired_res)
{
for (k = n_vars; k >= 0; k--)
iS->geqs[e2].coef[k] = rS->geqs[e2].coef[k] =
check_mul (pb->geqs[Ue].coef[k], Lc) +
check_mul (pb->geqs[Le].coef[k], Uc);
mul_hwi (pb->geqs[Ue].coef[k], Lc) +
mul_hwi (pb->geqs[Le].coef[k], Uc);
iS->geqs[e2].coef[0] -= (Uc - 1) * (Lc - 1);
}