From: Jacob Lifshay <programmerjake@gmail.com>
Date: Wed, 14 Jun 2023 05:54:28 +0000 (-0700)
Subject: deepcopy is really slow and actually unnecessary here
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=14f508cb2b158244dd5098c474aa408ac6ad7dc0;p=openpower-isa.git

deepcopy is really slow and actually unnecessary here
---

diff --git a/src/openpower/fpscr.py b/src/openpower/fpscr.py
index d4e8a1d7..edfcfaca 100644
--- a/src/openpower/fpscr.py
+++ b/src/openpower/fpscr.py
@@ -136,9 +136,7 @@ class FPSCRState(SelectableInt):
         offs = 0
         # set up sub-fields from Record layout
         self.fsi = {}
-        l = deepcopy(FPSCRRecord.layout)
-        l.reverse()
-        for field, width in l:
+        for field, width in reversed(FPSCRRecord.layout):
             if field == "FPRF":
                 v = FPSCR_FPRF(self, tuple(range(47, 52)))
                 end = 52