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