From c89298404071e3b42eb7e2bfbdbaa45573538b53 Mon Sep 17 00:00:00 2001
From: Jan Beulich <jbeulich@suse.com>
Date: Mon, 30 May 2022 11:29:59 +0200
Subject: [PATCH] x86: correct bmi2_umul<mode><dwi>3_1's MEM_P() uses

It's pretty clear that the operand numbers in the MEM_P() checks are
off by one, perhaps due to a copy-and-paste oversight (unlike in most
other places here we're dealing with two outputs).

gcc/

	* config/i386/i386.md (bmi2_umul<mode><dwi>3_1): Correct MEM_P()
	arguments.
---
 gcc/config/i386/i386.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index 602dfa7..17bdbd9 100644
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -8465,7 +8465,7 @@
 			(zero_extend:<DWI> (match_dup 3)))
 	    (match_operand:QI 4 "const_int_operand" "n"))))]
   "TARGET_BMI2 && INTVAL (operands[4]) == <MODE_SIZE> * BITS_PER_UNIT
-   && !(MEM_P (operands[1]) && MEM_P (operands[2]))"
+   && !(MEM_P (operands[2]) && MEM_P (operands[3]))"
   "mulx\t{%3, %0, %1|%1, %0, %3}"
   [(set_attr "type" "imulx")
    (set_attr "prefix" "vex")
-- 
2.7.4