commit 97fc0c210bf522d319f2c55c03c7f977f3f9b46c
author Richard Henderson <richard.henderson@linaro.org> Sun Jan 28 15:05:06 2024 +1000
committer Richard Henderson <richard.henderson@linaro.org> Sat Feb 03 08:52:25 2024 +1000
tree 76d19dbaf68dab4ed9bb390e96f24909a94e6875
parent b9e877f20f22b308ef2c2fd5e3e7c3b6295db994

target/cris: Cache mem_index in DisasContext

Compute this value once for each translation.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/cris/translate.c

diff --git a/target/cris/translate.c b/target/cris/translate.c
index ee1402a..7acea29 100644
--- a/target/cris/translate.c
+++ b/target/cris/translate.c
@@ -94,6 +94,7 @@
 
     CRISCPU *cpu;
     target_ulong pc, ppc;
+    int mem_index;
 
     /* Decoder.  */
         unsigned int (*decoder)(CPUCRISState *env, struct DisasContext *dc);
@@ -1008,37 +1009,31 @@
 
 static void gen_load64(DisasContext *dc, TCGv_i64 dst, TCGv addr)
 {
-    int mem_index = cpu_mmu_index(&dc->cpu->env, false);
-
     /* If we get a fault on a delayslot we must keep the jmp state in
        the cpu-state to be able to re-execute the jmp.  */
     if (dc->delayed_branch == 1) {
         cris_store_direct_jmp(dc);
     }
 
-    tcg_gen_qemu_ld_i64(dst, addr, mem_index, MO_TEUQ);
+    tcg_gen_qemu_ld_i64(dst, addr, dc->mem_index, MO_TEUQ);
 }
 
 static void gen_load(DisasContext *dc, TCGv dst, TCGv addr, 
              unsigned int size, int sign)
 {
-    int mem_index = cpu_mmu_index(&dc->cpu->env, false);
-
     /* If we get a fault on a delayslot we must keep the jmp state in
        the cpu-state to be able to re-execute the jmp.  */
     if (dc->delayed_branch == 1) {
         cris_store_direct_jmp(dc);
     }
 
-    tcg_gen_qemu_ld_tl(dst, addr, mem_index,
+    tcg_gen_qemu_ld_tl(dst, addr, dc->mem_index,
                        MO_TE + ctz32(size) + (sign ? MO_SIGN : 0));
 }
 
 static void gen_store (DisasContext *dc, TCGv addr, TCGv val,
                unsigned int size)
 {
-    int mem_index = cpu_mmu_index(&dc->cpu->env, false);
-
     /* If we get a fault on a delayslot we must keep the jmp state in
        the cpu-state to be able to re-execute the jmp.  */
     if (dc->delayed_branch == 1) {
@@ -1055,7 +1050,7 @@
         return;
     }
 
-    tcg_gen_qemu_st_tl(val, addr, mem_index, MO_TE + ctz32(size));
+    tcg_gen_qemu_st_tl(val, addr, dc->mem_index, MO_TE + ctz32(size));
 
     if (dc->flags_x) {
         cris_evaluate_flags(dc);
@@ -2971,6 +2966,7 @@
     dc->cpu = env_archcpu(env);
     dc->ppc = pc_start;
     dc->pc = pc_start;
+    dc->mem_index = cpu_mmu_index(env, false);
     dc->flags_uptodate = 1;
     dc->flags_x = tb_flags & X_FLAG;
     dc->cc_x_uptodate = 0;