PR target/87369
	* config/aarch64/aarch64.md (aarch64_bfxil<mode>): Do not accept
	constant with just the high bit set.  That's better handled by
	the "bit" pattern.

diff --git a/gcc/config/aarch64/aarch64.md b/gcc/config/aarch64/aarch64.md
index 88f66104db3..ad6822410c2 100644
--- a/gcc/config/aarch64/aarch64.md
+++ b/gcc/config/aarch64/aarch64.md
@@ -5342,9 +5342,11 @@
 		    (match_operand:GPI 3 "const_int_operand" "n, Ulc"))
 	    (and:GPI (match_operand:GPI 2 "register_operand" "0,r")
 		    (match_operand:GPI 4 "const_int_operand" "Ulc, n"))))]
-  "(INTVAL (operands[3]) == ~INTVAL (operands[4]))
-  && (aarch64_high_bits_all_ones_p (INTVAL (operands[3]))
-    || aarch64_high_bits_all_ones_p (INTVAL (operands[4])))"
+  "(INTVAL (operands[3]) == ~INTVAL (operands[4])
+    && ((aarch64_high_bits_all_ones_p (INTVAL (operands[3]))
+	 && popcount_hwi (INTVAL (operands[3])) != 1)
+        || (aarch64_high_bits_all_ones_p (INTVAL (operands[4]))
+	    && popcount_hwi (INTVAL (operands[4])) != 1)))"
   {
     switch (which_alternative)
     {