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openSUSE:12.2
libgcj41
force_fit_type.patch
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File force_fit_type.patch of Package libgcj41
* stor-layout.c (set_sizetype): Set TYPE_MAX_VALUE properly for sizetype when sizetype is unsigned. Index: gcc/stor-layout.c =================================================================== --- gcc/stor-layout.c.orig 2006-10-09 12:05:44.000000000 +0200 +++ gcc/stor-layout.c 2009-11-20 13:41:21.000000000 +0100 @@ -2033,6 +2033,25 @@ set_sizetype (tree type) ssizetype = sizetype; sbitsizetype = bitsizetype; } + + /* If SIZETYPE is unsigned, we need to fix TYPE_MAX_VALUE so that + it is sign extended in a way consistent with force_fit_type. */ + if (TYPE_UNSIGNED (type)) + { + tree orig_max, new_max; + + orig_max = TYPE_MAX_VALUE (sizetype); + + /* Build a new node with the same values, but a different type. */ + new_max = build_int_cst_wide (sizetype, + TREE_INT_CST_LOW (orig_max), + TREE_INT_CST_HIGH (orig_max)); + + /* Now sign extend it using force_fit_type to ensure + consistency. */ + new_max = force_fit_type (new_max, 0, 0, 0); + TYPE_MAX_VALUE (sizetype) = new_max; + } } /* TYPE is an integral type, i.e., an INTEGRAL_TYPE, ENUMERAL_TYPE,
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