48 lines
1.7 KiB
Diff
48 lines
1.7 KiB
Diff
|
Revert:
|
||
|
|
2008-08-28 Dodji Seketeli <dodji@redhat.com>
|
||
|
|
|
||
|
|
PR c++/36741
|
||
|
|
* tree.c (int_fits_type_p): Don't forget unsigned integers
|
||
|
|
of type sizetype which higher end word equals -1.
|
||
|
|
|
||
|
|
* g++.dg/other/new-size-type.C: New test.
|
||
|
|
|
||
|
|
--- gcc/tree.c (revision 139711)
|
||
|
|
+++ gcc/tree.c (revision 139710)
|
||
|
|
@@ -6296,21 +6296,6 @@ int_fits_type_p (const_tree c, const_tre
|
||
|
|
for "unknown if constant fits", 0 for "constant known *not* to fit" and 1
|
||
|
|
for "constant known to fit". */
|
||
|
|
|
||
|
|
- if (TREE_TYPE (c) == sizetype
|
||
|
|
- && TYPE_UNSIGNED (TREE_TYPE (c))
|
||
|
|
- && TREE_INT_CST_HIGH (c) == -1
|
||
|
|
- && !TREE_OVERFLOW (c))
|
||
|
|
- /* So c is an unsigned integer which type is sizetype.
|
||
|
|
- sizetype'd integers are sign extended even though they are
|
||
|
|
- unsigned. If the integer value fits in the lower end word of c,
|
||
|
|
- and if the higher end word has all its bits set to 1, that
|
||
|
|
- means the higher end bits are set to 1 only for sign extension.
|
||
|
|
- So let's convert c into an equivalent zero extended unsigned
|
||
|
|
- integer. */
|
||
|
|
- c = force_fit_type_double (size_type_node,
|
||
|
|
- TREE_INT_CST_LOW (c),
|
||
|
|
- TREE_INT_CST_HIGH (c),
|
||
|
|
- false, false);
|
||
|
|
/* Check if C >= type_low_bound. */
|
||
|
|
if (type_low_bound && TREE_CODE (type_low_bound) == INTEGER_CST)
|
||
|
|
{
|
||
|
|
--- gcc/testsuite/g++.dg/other/new-size-type.C (revision 139711)
|
||
|
|
+++ gcc/testsuite/g++.dg/other/new-size-type.C (revision 139710)
|
||
|
|
@@ -1,10 +1,10 @@
|
||
|
|
// Contributed by Dodji Seketeli <dodji@redhat.com>
|
||
|
|
// Origin: PR c++/36741
|
||
|
|
|
||
|
|
#include <stddef.h>
|
||
|
|
const char*
|
||
|
|
foo()
|
||
|
|
{
|
||
|
|
- return new char[~static_cast<size_t>(0)];// { dg-bogus "large" }
|
||
|
|
+ return new char[~static_cast<size_t>(0)];// { dg-bogus "large" "" { xfail *-*-* } }
|
||
|
|
}
|
||
|
|
|