[gcc r15-2195] Fix hash of WIDEN_*_EXPR

[Richard Biener via Gcc-cvs]

https://gcc.gnu.org/g:a8e61cd71f0cda04d583722ca4c66301358b01e1

commit r15-2195-ga8e61cd71f0cda04d583722ca4c66301358b01e1
Author: Richard Biener <rguent...@suse.de>
Date:   Mon Jul 22 11:07:28 2024 +0200

    Fix hash of WIDEN_*_EXPR
    
    We're hashing operand 2 to the temporary hash.
    
            * fold-const.cc (operand_compare::hash_operand): Fix hash
            of WIDEN_*_EXPR.

Diff:
---
 gcc/fold-const.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/fold-const.cc b/gcc/fold-const.cc
index 83c32dd10d4a..8908e7381e72 100644
--- a/gcc/fold-const.cc
+++ b/gcc/fold-const.cc
@@ -4123,7 +4123,7 @@ operand_compare::hash_operand (const_tree t, 
inchash::hash &hstate,
                hash_operand (TREE_OPERAND (t, 0), one, flags);
                hash_operand (TREE_OPERAND (t, 1), two, flags);
                hstate.add_commutative (one, two);
-               hash_operand (TREE_OPERAND (t, 2), two, flags);
+               hash_operand (TREE_OPERAND (t, 2), hstate, flags);
                return;
              }