sim: sh: refine pwsb & pwad nops

Since these insns don't do anything and are effectively ignored,
return early to avoid doing any common processing at the end as
that requires initializing variables like "res" with something.

diff --git a/sim/sh/gencode.c b/sim/sh/gencode.c
index 8ef3f3e..c121d53 100644 (file)
--- a/sim/sh/gencode.c
+++ b/sim/sh/gencode.c
@@ -2012,8 +2012,10 @@ static op ppi_tab[] =
     "ADD_SUB_GE;",
   },
   { "","", "pwsb Sx,Sy,Dz",    "10100100....zzzz",
+    "return;",
   },
   { "","", "pwad Sx,Sy,Dz",    "10110100....zzzz",
+    "return;",
   },
   { "","", "(if cc) pabs Sx,Dz",       "100010ccxx01zzzz",
     "/* FIXME: duplicate code pabs.  */",