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re PR tree-optimization/34472 (gcc.dg/struct/wo_prof_malloc_size_var.c doesn't work)

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gcc/
	PR tree-optimization/34472
	* ipa-struct-reorg.c (safe_cond_expr_check): Change the DATA
	parameter to a "bool *" and set *DATA to false if there is
	an unsafe access.  Do not delete the structure here.
	(check_cond_exprs): Delete it here instead.
	(check_cond_exprs, exclude_cold_structs): Do not increase
	I when removing a structure.

From-SVN: r131798
This commit is contained in:
Richard Sandiford 2008-01-24 17:46:31 +00:00 committed by Richard Sandiford
parent fcc448088d
commit 986d97ed88
2 changed files with 35 additions and 15 deletions
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10
gcc/ChangeLog
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@ -1,3 +1,13 @@
2008-01-24 Richard Sandiford <rsandifo@nildram.co.uk>
PR tree-optimization/34472
* ipa-struct-reorg.c (safe_cond_expr_check): Change the DATA
parameter to a "bool *" and set *DATA to false if there is
an unsafe access. Do not delete the structure here.
(check_cond_exprs): Delete it here instead.
(check_cond_exprs, exclude_cold_structs): Do not increase
I when removing a structure.
2008-01-24 Uros Bizjak <ubizjak@gmail.com>
PR target/34856

40
gcc/ipa-struct-reorg.c
View File

@ -3074,26 +3074,24 @@ dump_accs (d_str str)
}
/* This function checks whether an access statement, pointed by SLOT,
is a condition we are capable to transform. If not, it removes
the structure with index, represented by DATA, from the vector
of structures. */
is a condition we are capable to transform. It returns false if not,
setting bool *DATA to false. */
static int
safe_cond_expr_check (void **slot, void *data)
{
struct access_site *acc = *(struct access_site **) slot;
if (TREE_CODE (acc->stmt) == COND_EXPR)
if (TREE_CODE (acc->stmt) == COND_EXPR
&& !is_safe_cond_expr (acc->stmt))
{
if (!is_safe_cond_expr (acc->stmt))
if (dump_file)
{
if (dump_file)
{
fprintf (dump_file, "\nUnsafe conditional statement ");
print_generic_stmt (dump_file, acc->stmt, 0);
}
remove_structure (*(unsigned *) data);
fprintf (dump_file, "\nUnsafe conditional statement ");
print_generic_stmt (dump_file, acc->stmt, 0);
}
*(bool *) data = false;
return 0;
}
return 1;
}
@ -3547,9 +3545,18 @@ check_cond_exprs (void)
d_str str;
unsigned i;
for (i = 0; VEC_iterate (structure, structures, i, str); i++)
if (str->accs)
htab_traverse (str->accs, safe_cond_expr_check, &i);
i = 0;
while (VEC_iterate (structure, structures, i, str))
{
bool safe_p = true;
if (str->accs)
htab_traverse (str->accs, safe_cond_expr_check, &safe_p);
if (!safe_p)
remove_structure (i);
else
i++;
}
}
/* We exclude from non-field accesses of the structure
@ -3859,7 +3866,8 @@ exclude_cold_structs (void)
sum_counts (str, &hotest);
/* Remove cold structures from structures vector. */
for (i = 0; VEC_iterate (structure, structures, i, str); i++)
i = 0;
while (VEC_iterate (structure, structures, i, str))
if (str->count * 100 < (hotest * STRUCT_REORG_COLD_STRUCT_RATIO))
{
if (dump_file)
@ -3870,6 +3878,8 @@ exclude_cold_structs (void)
}
remove_structure (i);
}
else
i++;
}
/* This function decomposes original structure into substructures,