commit 2610c786f7496c5006bb68d6801ef7450bd231a9
Author: Tobias Burnus <tobias@codesourcery.com>
Date:   Mon Nov 30 15:19:39 2020 +0100

    Fortran's dump-parse-tree.c: Use '==' not '=' for '.eq.'.
    
    gcc/fortran/
            * dump-parse-tree.c (show_expr): Use '==' not '=' for '.eq.'.

diff --git a/gcc/fortran/dump-parse-tree.c b/gcc/fortran/dump-parse-tree.c
index cab0fb2979f..1012b11fb98 100644
--- a/gcc/fortran/dump-parse-tree.c
+++ b/gcc/fortran/dump-parse-tree.c
@@ -647,9 +647,9 @@ show_expr (gfc_expr *p)
 	  fputs ("NEQV ", dumpfile);
 	  break;
 	case INTRINSIC_EQ:
 	case INTRINSIC_EQ_OS:
-	  fputs ("= ", dumpfile);
+	  fputs ("== ", dumpfile);
 	  break;
 	case INTRINSIC_NE:
 	case INTRINSIC_NE_OS:
 	  fputs ("/= ", dumpfile);