i386: Use "r" constraint in *andn<mode>3_doubleword_bmi

ANDN is non-destructive, so use "r" instead of "0" for its operand 1 constraint.

2022-07-01  Uroš Bizjak  <ubizjak@gmail.com>

gcc/ChangeLog:

	* config/i386/i386.md (*andn<mode>3_doubleword_bmi):
	Use "r" constraint for operand 1.

diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index 352a21c585cbc4b474caac082957a477a16e9d7c..20c3b9a412250a0b82277445f9278cca86c6234d 100644 (file)
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -10407,7 +10407,7 @@
 (define_insn_and_split "*andn<mode>3_doubleword_bmi"
   [(set (match_operand:<DWI> 0 "register_operand" "=r")
        (and:<DWI>
-         (not:<DWI> (match_operand:<DWI> 1 "register_operand" "0"))
+         (not:<DWI> (match_operand:<DWI> 1 "register_operand" "r"))
          (match_operand:<DWI> 2 "nonimmediate_operand" "ro")))
    (clobber (reg:CC FLAGS_REG))]
   "TARGET_BMI"