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+2018-05-24 Roger Sayle <roger@nextmovesoftware.com>
+
+ * fold-const.c (tree_nonzero_bits): New function.
+ * fold-const.h (tree_nonzero_bits): Likewise.
+ * match.pd (POPCOUNT): New patterns to fold BUILTIN_POPCOUNT and
+ friends. POPCOUNT(x&1) => x&1, POPCOUNT(x)==0 => x==0, etc.
+
2018-05-24 H.J. Lu <hongjiu.lu@intel.com>
PR target/85900