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re PR rtl-optimization/56348 (internal compiler error in assign_by_spills with -m32 -fPIC -msse2) 

2013-02-15  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/56348
	* lra-assigns.c (reload_pseudo_compare_func): Prefer bigger pseudos.

2013-02-15  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/56348
	* gcc.target/i386/pr56348.c: New test.

From-SVN: r196090
This commit is contained in:
Vladimir Makarov 2013-02-15 19:17:02 +00:00 committed by Vladimir Makarov
parent 3ab98a471c
commit 4791895176
4 changed files with 54 additions and 0 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2013-02-15 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-optimization/56348
* lra-assigns.c (reload_pseudo_compare_func): Prefer bigger pseudos.
2013-02-15 Steven Bosscher <steven@gcc.gnu.org>
* graph.c (start_graph_dump): Print dumpfile base as digraph label.

6
gcc/lra-assigns.c
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@ -197,6 +197,12 @@ reload_pseudo_compare_func (const void *v1p, const void *v2p)
if ((diff = (regno_assign_info[regno_assign_info[r2].first].freq
- regno_assign_info[regno_assign_info[r1].first].freq)) != 0)
return diff;
/* Allocate bigger pseudos first to avoid register file
fragmentation. */
if ((diff
= (ira_reg_class_max_nregs[cl2][lra_reg_info[r2].biggest_mode]
- ira_reg_class_max_nregs[cl1][lra_reg_info[r1].biggest_mode])) != 0)
return diff;
/* Put pseudos from the thread nearby. */
if ((diff = regno_assign_info[r1].first - regno_assign_info[r2].first) != 0)
return diff;

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2013-02-15 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-optimization/56348
* gcc.target/i386/pr56348.c: New test.
2012-02-15 Greta Yorsh <Greta.Yorsh@arm.com>
* gcc.target/arm/interrupt-1.c: Fix for thumb mode.

38
gcc/testsuite/gcc.target/i386/pr56348.c Normal file
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@ -0,0 +1,38 @@
/* PR target/56348 */
/* { dg-do compile { target { ia32 } } } */
/* { dg-options "-O2 -fPIC -mfpmath=sse -msse2" } */
typedef unsigned int size_t;
extern double fabs (double __x) __attribute__ ((__nothrow__, __leaf__))
__attribute__ ((__const__));
typedef struct cholmod_sparse_struct
{
size_t ncol;
void *p;
} cholmod_sparse;
int cholmod_l_reallocate_sparse (size_t, cholmod_sparse *, void *);
int
cholmod_l_drop (double tol, cholmod_sparse * A)
{
double aij;
double *Ax;
long long *Ap, *Ai, *Anz;
long long packed, i, j, nrow, ncol, p, pend, nz, values;
Ap = A->p;
ncol = A->ncol;
nz = 0;
for (j = 0; j < ncol; j++)
for (; p < pend; p++)
{
i = Ai[p];
aij = Ax[p];
if (i <= j && (fabs (aij) > tol || ((aij) != (aij))))
nz++;
}
Ap[ncol] = nz;
cholmod_l_reallocate_sparse (nz, A, 0);
}