procyberian/gcc
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

re PR tree-optimization/33453 (ICE in build2_stat, at tree.c:3110 with -ftree-parallelize-loops=4 -ftree-vectorize)

Browse source 
PR tree-optimization/33453
	* tree-data-ref.c (split_constant_offset): Use POINTER_PLUS_EXPR
	for pointer addition.
	* tree-parloops.c (canonicalize_loop_ivs): Likewise.
	(separate_decls_in_loop_name): Copy DECL_GIMPLE_REG_P from var to
	var_copy.

	* gcc.c-torture/compile/20071203-1.c: New test.

From-SVN: r130588
This commit is contained in:
Jakub Jelinek 2007-12-03 23:35:39 +01:00
parent d56a25e130
commit 36ad7922cb
5 changed files with 41 additions and 11 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
gcc/ChangeLog
View file

@ -1,3 +1,12 @@
2007-12-03 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/33453
* tree-data-ref.c (split_constant_offset): Use POINTER_PLUS_EXPR
for pointer addition.
* tree-parloops.c (canonicalize_loop_ivs): Likewise.
(separate_decls_in_loop_name): Copy DECL_GIMPLE_REG_P from var to
var_copy.
2007-12-03 Bernd Schmidt <bernd.schmidt@analog.com>
* config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS): Define __FDPIC__ as
@ -5,8 +14,7 @@
2007-12-03 Razya Ladelsky <razya@il.ibm.com>
* doc/invoke.texi (fipa-cp, fipa-matrix-reorg): Add documentation.
* doc/invoke.texi (fipa-cp, fipa-matrix-reorg): Add documentation.
2007-12-03 Jakub Jelinek <jakub@redhat.com>

5
gcc/testsuite/ChangeLog
View file

@ -1,3 +1,8 @@
2007-12-03 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/33453
* gcc.c-torture/compile/20071203-1.c: New test.
2007-12-03 Robert Dewar <dewar@adacore.com>
Samuel Tardieu <sam@rfc1149.net>

12
gcc/testsuite/gcc.c-torture/compile/20071203-1.c Normal file
View file

@ -0,0 +1,12 @@
/* Testcase by Martin Michlmayr <tbm@cyrius.com> */
struct User { char username[10]; };
void
auth_set_username (struct User *user)
{
char *d;
char ch;
d = user->username + (user->username[0] == '~');
while ((ch = *d++) != '\0') /* do nothing */ ;
}

9
gcc/tree-data-ref.c
View file

@ -555,9 +555,12 @@ split_constant_offset (tree exp, tree *var, tree *off)
{
split_constant_offset (poffset, &poffset, &off1);
off0 = size_binop (PLUS_EXPR, off0, off1);
base = fold_build2 (PLUS_EXPR, TREE_TYPE (base),
base,
fold_convert (TREE_TYPE (base), poffset));
if (POINTER_TYPE_P (TREE_TYPE (base)))
base = fold_build2 (POINTER_PLUS_EXPR, TREE_TYPE (base),
base, fold_convert (sizetype, poffset));
else
base = fold_build2 (PLUS_EXPR, TREE_TYPE (base), base,
fold_convert (TREE_TYPE (base), poffset));
}
var0 = fold_convert (type, base);

14
gcc/tree-parloops.c
View file

@ -687,6 +687,7 @@ separate_decls_in_loop_name (tree name,
if (!*dslot)
{
var_copy = create_tmp_var (TREE_TYPE (var), get_name (var));
DECL_GIMPLE_REG_P (var_copy) = DECL_GIMPLE_REG_P (var);
add_referenced_var (var_copy);
nielt = XNEW (struct int_tree_map);
nielt->uid = uid;
@ -1266,7 +1267,7 @@ static void
canonicalize_loop_ivs (struct loop *loop, htab_t reduction_list, tree nit)
{
unsigned precision = TYPE_PRECISION (TREE_TYPE (nit));
tree phi, prev, res, type, var_before, val, atype, t, next;
tree phi, prev, res, type, var_before, val, atype, mtype, t, next;
block_stmt_iterator bsi;
bool ok;
affine_iv iv;
@ -1313,11 +1314,12 @@ canonicalize_loop_ivs (struct loop *loop, htab_t reduction_list, tree nit)
remove_phi_node (phi, prev, false);
atype = TREE_TYPE (res);
val = fold_build2 (PLUS_EXPR, atype,
unshare_expr (iv.base),
fold_build2 (MULT_EXPR, atype,
unshare_expr (iv.step),
fold_convert (atype, var_before)));
mtype = POINTER_TYPE_P (atype) ? sizetype : atype;
val = fold_build2 (MULT_EXPR, mtype, unshare_expr (iv.step),
fold_convert (mtype, var_before));
val = fold_build2 (POINTER_TYPE_P (atype)
? POINTER_PLUS_EXPR : PLUS_EXPR,
atype, unshare_expr (iv.base), val);
val = force_gimple_operand_bsi (&bsi, val, false, NULL_TREE, true,
BSI_SAME_STMT);
t = build_gimple_modify_stmt (res, val);