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re PR middle-end/63762 ([ARM]GCC generates UNPREDICTABLE STR with Rn = Rt when hard-float abi is used) 

2014-11-19  Renlin Li  <Renlin.Li@arm.com>

        PR middle-end/63762
        * ira.c (ira): Update preferred class. 

        * gcc.dg/pr63762.c: New test.

From-SVN: r217783
This commit is contained in:
Renlin Li 2014-11-19 15:15:51 +00:00 committed by Renlin Li
parent dd308ed81c
commit 9d6e10c70a
4 changed files with 99 additions and 1 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2014-11-19 Renlin Li <Renlin.Li@arm.com>
PR middle-end/63762
* ira.c (ira): Update preferred class.
2014-11-19 Jakub Jelinek <jakub@redhat.com>
* gimple.h (gimple_build_assign_with_ops): Add unary arg overload.

13
gcc/ira.c
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@ -5263,7 +5263,18 @@ ira (FILE *f)
ira_allocno_iterator ai;
FOR_EACH_ALLOCNO (a, ai)
ALLOCNO_REGNO (a) = REGNO (ALLOCNO_EMIT_DATA (a)->reg);
{
int old_regno = ALLOCNO_REGNO (a);
int new_regno = REGNO (ALLOCNO_EMIT_DATA (a)->reg);
ALLOCNO_REGNO (a) = new_regno;
if (old_regno != new_regno)
setup_reg_classes (new_regno, reg_preferred_class (old_regno),
reg_alternate_class (old_regno),
reg_allocno_class (old_regno));
}
}
else
{

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2014-11-19 Renlin Li <Renlin.Li@arm.com>
PR middle-end/63762
* gcc.dg/pr63762.c: New test.
2014-11-19 Marek Polacek <polacek@redhat.com>
PR sanitizer/63690

77
gcc/testsuite/gcc.dg/pr63762.c Normal file
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@ -0,0 +1,77 @@
/* PR middle-end/63762 */
/* { dg-do assemble } */
/* { dg-options "-O2" } */
#include <stdlib.h>
void *astFree ();
void *astMalloc ();
void astNegate (void *);
int astGetNegated (void *);
void astGetRegionBounds (void *, double *, double *);
int astResampleF (void *, ...);
extern int astOK;
int
MaskF (int inside, int ndim, const int lbnd[], const int ubnd[],
float in[], float val)
{
void *used_region;
float *c, *d, *out, *tmp_out;
double *lbndgd, *ubndgd;
int *lbndg, *ubndg, idim, ipix, nax, nin, nout, npix, npixg, result = 0;
if (!astOK) return result;
lbndg = astMalloc (sizeof (int)*(size_t) ndim);
ubndg = astMalloc (sizeof (int)*(size_t) ndim);
lbndgd = astMalloc (sizeof (double)*(size_t) ndim);
ubndgd = astMalloc (sizeof (double)*(size_t) ndim);
if (astOK)
{
astGetRegionBounds (used_region, lbndgd, ubndgd);
npix = 1;
npixg = 1;
for (idim = 0; idim < ndim; idim++)
{
lbndg[ idim ] = lbnd[ idim ];
ubndg[ idim ] = ubnd[ idim ];
npix *= (ubnd[ idim ] - lbnd[ idim ] + 1);
if (npixg >= 0) npixg *= (ubndg[ idim ] - lbndg[ idim ] + 1);
}
if (npixg <= 0 && astOK)
{
if ((inside != 0) == (astGetNegated( used_region ) != 0))
{
c = in;
for (ipix = 0; ipix < npix; ipix++) *(c++) = val;
result = npix;
}
}
else if (npixg > 0 && astOK)
{
if ((inside != 0) == (astGetNegated (used_region) != 0))
{
tmp_out = astMalloc (sizeof (float)*(size_t) npix);
if (tmp_out)
{
c = tmp_out;
for (ipix = 0; ipix < npix; ipix++) *(c++) = val;
result = npix - npixg;
}
out = tmp_out;
}
else
{
tmp_out = NULL;
out = in;
}
if (inside) astNegate (used_region);
result += astResampleF (used_region, ndim, lbnd, ubnd, in, NULL,
NULL, NULL, 0, 0.0, 100, val, ndim,
lbnd, ubnd, lbndg, ubndg, out, NULL);
if (inside) astNegate (used_region);
}
}
return result;
}