+2014-06-13 Thomas Preud'homme <thomas.preudhomme@arm.com>
+
+ PR tree-optimization/61375
+ * tree-ssa-math-opts.c (init_symbolic_number): Cancel optimization if
+ symbolic number cannot be represented in an uint64_t.
+ (find_bswap_or_nop_1): Likewise.
+
2014-06-12 Jan Hubicka <hubicka@ucw.cz>
* symtab.c (symtab_node::reset_section): New method.
+2014-06-13 Thomas Preud'homme <thomas.preudhomme@arm.com>
+
+ PR tree-optimization/61375
+ * gcc.c-torture/execute/pr61375-1.c: New test.
+
2014-06-12 Jakub Jelinek <jakub@redhat.com>
PR middle-end/61486
--- /dev/null
+#ifdef __UINT64_TYPE__
+typedef __UINT64_TYPE__ uint64_t;
+#else
+typedef unsigned long long uint64_t;
+#endif
+
+#ifndef __SIZEOF_INT128__
+#define __int128 long long
+#endif
+
+/* Some version of bswap optimization would ICE when analyzing a mask constant
+ too big for an uint64_t variable (PR210931). */
+
+__attribute__ ((noinline, noclone)) uint64_t
+uint128_central_bitsi_ior (unsigned __int128 in1, uint64_t in2)
+{
+ __int128 mask = (__int128)0xffff << 56;
+ return ((in1 & mask) >> 56) | in2;
+}
+
+int
+main(int argc)
+{
+ __int128 in = 1;
+#ifdef __SIZEOF_INT128__
+ in <<= 64;
+#endif
+ if (sizeof (uint64_t) * __CHAR_BIT__ != 64)
+ return 0;
+ if (sizeof (unsigned __int128) * __CHAR_BIT__ != 128)
+ return 0;
+ if (uint128_central_bitsi_ior (in, 2) != 0x102)
+ __builtin_abort ();
+ return 0;
+}
if (size % BITS_PER_UNIT != 0)
return false;
size /= BITS_PER_UNIT;
+ if (size > (int)sizeof (uint64_t))
+ return false;
n->range = size;
n->n = CMPNOP;
type_size = TYPE_PRECISION (type);
if (type_size % BITS_PER_UNIT != 0)
return NULL_TREE;
+ if (type_size > (int)sizeof (uint64_t) * 8)
+ return NULL_TREE;
/* Sign extension: result is dependent on the value. */
old_type_size = TYPE_PRECISION (n->type);