[committed] Fix bug in register move costing on H8/300

[Jeff Law <jeffreyalaw@gmail.com>]

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Spotted while looking at a regression on the H8/300.   We used MAC_REG 
rather than MAC_REGS when referring to a register class. This caused 
code quality regressions while looking into Paul K's suggestion for 
fixing the auto-increment issue on the H8.


Pushed to the trunk,

Jeff



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commit 6c3da5ca84ded7c5754183f8d2cad0d01e1562ff
Author: Jeff Law <jeffreyalaw@gmail.com>
Date:   Sat Oct 15 23:38:20 2022 -0400

    Fix bug in register move costing on H8/300
    
    gcc/
            * config/h8300/h8300.cc (h8300_register_move_cost): Fix typo.

diff --git a/gcc/config/h8300/h8300.cc b/gcc/config/h8300/h8300.cc
index 78cf15f15c7..be3e385c91e 100644
--- a/gcc/config/h8300/h8300.cc
+++ b/gcc/config/h8300/h8300.cc
@@ -1140,7 +1140,7 @@ static int
 h8300_register_move_cost (machine_mode mode ATTRIBUTE_UNUSED,
                          reg_class_t from, reg_class_t to)
 {
-  if (from == MAC_REGS || to == MAC_REG)
+  if (from == MAC_REGS || to == MAC_REGS)
     return 6;
   else
     return 3;