From bd568f1849220f67d187adbc67f968febd986bd7 Mon Sep 17 00:00:00 2001
From: aurel32 <aurel32@c046a42c-6fe2-441c-8c8c-71466251a162>
Date: Thu, 4 Sep 2008 18:06:03 +0000
Subject: [PATCH] ppc: Convert nip moves to TCG

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5160 c046a42c-6fe2-441c-8c8c-71466251a162
---
 target-ppc/op.c        | 30 ------------------------------
 target-ppc/translate.c | 20 ++++++++++++--------
 2 files changed, 12 insertions(+), 38 deletions(-)

diff --git a/target-ppc/op.c b/target-ppc/op.c
index a31b41fd7d..70c2a1309f 100644
--- a/target-ppc/op.c
+++ b/target-ppc/op.c
@@ -46,20 +46,6 @@ void OPPROTO op_raise_exception_err (void)
     do_raise_exception_err(PARAM1, PARAM2);
 }
 
-void OPPROTO op_update_nip (void)
-{
-    env->nip = (uint32_t)PARAM1;
-    RETURN();
-}
-
-#if defined(TARGET_PPC64)
-void OPPROTO op_update_nip_64 (void)
-{
-    env->nip = ((uint64_t)PARAM1 << 32) | (uint64_t)PARAM2;
-    RETURN();
-}
-#endif
-
 void OPPROTO op_debug (void)
 {
     do_raise_exception(EXCP_DEBUG);
@@ -465,8 +451,6 @@ void OPPROTO op_store_fpscr (void)
 }
 
 /* Branch */
-#define EIP env->nip
-
 void OPPROTO op_setlr (void)
 {
     env->lr = (uint32_t)PARAM1;
@@ -481,20 +465,6 @@ void OPPROTO op_setlr_64 (void)
 }
 #endif
 
-void OPPROTO op_b_T1 (void)
-{
-    env->nip = (uint32_t)(T1 & ~3);
-    RETURN();
-}
-
-#if defined (TARGET_PPC64)
-void OPPROTO op_b_T1_64 (void)
-{
-    env->nip = (uint64_t)(T1 & ~3);
-    RETURN();
-}
-#endif
-
 void OPPROTO op_jz_T0 (void)
 {
     if (!T0)
diff --git a/target-ppc/translate.c b/target-ppc/translate.c
index 9dd2506146..f7f31f43fa 100644
--- a/target-ppc/translate.c
+++ b/target-ppc/translate.c
@@ -60,6 +60,7 @@ static TCGv cpu_gprh[32];
 static TCGv cpu_fpr[32];
 static TCGv cpu_avrh[32], cpu_avrl[32];
 static TCGv cpu_crf[8];
+static TCGv cpu_nip;
 
 /* dyngen register indexes */
 static TCGv cpu_T[3];
@@ -164,6 +165,9 @@ void ppc_translate_init(void)
         p += (i < 10) ? 6 : 7;
     }
 
+    cpu_nip = tcg_global_mem_new(TCG_TYPE_TL, TCG_AREG0,
+                                 offsetof(CPUState, nip), "nip");
+
     /* register helpers */
 #undef DEF_HELPER
 #define DEF_HELPER(ret, name, params) tcg_register_helper(name, #name);
@@ -268,10 +272,10 @@ static always_inline void gen_update_nip (DisasContext *ctx, target_ulong nip)
 {
 #if defined(TARGET_PPC64)
     if (ctx->sf_mode)
-        gen_op_update_nip_64(nip >> 32, nip);
+        tcg_gen_movi_tl(cpu_nip, nip);
     else
 #endif
-        gen_op_update_nip(nip);
+        tcg_gen_movi_tl(cpu_nip, (uint32_t)nip);
 }
 
 #define GEN_EXCP(ctx, excp, error)                                            \
@@ -2836,19 +2840,19 @@ static always_inline void gen_goto_tb (DisasContext *ctx, int n,
         tcg_gen_movi_tl(cpu_T[1], dest);
 #if defined(TARGET_PPC64)
         if (ctx->sf_mode)
-            gen_op_b_T1_64();
+            tcg_gen_andi_tl(cpu_nip, cpu_T[1], ~3);
         else
 #endif
-            gen_op_b_T1();
+            tcg_gen_andi_tl(cpu_nip, cpu_T[1], (uint32_t)~3);
         tcg_gen_exit_tb((long)tb + n);
     } else {
         tcg_gen_movi_tl(cpu_T[1], dest);
 #if defined(TARGET_PPC64)
         if (ctx->sf_mode)
-            gen_op_b_T1_64();
+            tcg_gen_andi_tl(cpu_nip, cpu_T[1], ~3);
         else
 #endif
-            gen_op_b_T1();
+            tcg_gen_andi_tl(cpu_nip, cpu_T[1], (uint32_t)~3);
         if (unlikely(ctx->singlestep_enabled)) {
             if ((ctx->singlestep_enabled &
                  (CPU_BRANCH_STEP | CPU_SINGLE_STEP)) &&
@@ -2969,10 +2973,10 @@ static always_inline void gen_bcond (DisasContext *ctx, int type)
             } else {
 #if defined(TARGET_PPC64)
                 if (ctx->sf_mode)
-                    gen_op_b_T1_64();
+                    tcg_gen_andi_tl(cpu_nip, cpu_T[1], ~3);
                 else
 #endif
-                    gen_op_b_T1();
+                    tcg_gen_andi_tl(cpu_nip, cpu_T[1], (uint32_t)~3);
                 goto no_test;
             }
             break;