[PULL 12/42] target/ppc: used ternary operator when registering MAS

David Gibson posted 42 patches 4 years, 8 months ago
Maintainers: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, David Gibson <david@gibson.dropbear.id.au>, Markus Armbruster <armbru@redhat.com>, "Dr. David Alan Gilbert" <dgilbert@redhat.com>, Eduardo Habkost <ehabkost@redhat.com>, Greg Kurz <groug@kaod.org>
[PULL 12/42] target/ppc: used ternary operator when registering MAS
Posted by David Gibson 4 years, 8 months ago
From: "Bruno Larsen (billionai)" <bruno.larsen@eldorado.org.br>

The write calback decision when registering the MAS SPR has been turned
into a ternary operation, rather than an if-then-else block.

This was done because when building without TCG, even though the
compiler will optimize away the pointers to spr_write_generic*, it
doesn't optimize away the decision and assignment to the local pointer,
creating compiler errors. This cleanup looked better than using ifdefs,
so  we decided to with it.

Signed-off-by: Bruno Larsen (billionai) <bruno.larsen@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210525115355.8254-2-bruno.larsen@eldorado.org.br>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
---
 target/ppc/cpu_init.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/target/ppc/cpu_init.c b/target/ppc/cpu_init.c
index 310dfbd26a..a32893fde8 100644
--- a/target/ppc/cpu_init.c
+++ b/target/ppc/cpu_init.c
@@ -1205,15 +1205,12 @@ static void register_BookE206_sprs(CPUPPCState *env, uint32_t mas_mask,
     /* TLB assist registers */
     /* XXX : not implemented */
     for (i = 0; i < 8; i++) {
-        void (*uea_write)(DisasContext *ctx, int sprn, int gprn) =
-            &spr_write_generic32;
-        if (i == 2 && (mas_mask & (1 << i)) && (env->insns_flags & PPC_64B)) {
-            uea_write = &spr_write_generic;
-        }
         if (mas_mask & (1 << i)) {
             spr_register(env, mas_sprn[i], mas_names[i],
                          SPR_NOACCESS, SPR_NOACCESS,
-                         &spr_read_generic, uea_write,
+                         &spr_read_generic,
+                         (i == 2 && (env->insns_flags & PPC_64B))
+                         ? &spr_write_generic : &spr_write_generic32,
                          0x00000000);
         }
     }
-- 
2.31.1