ppc: remove dead assignments, spotted by clang analyzer

Value stored is never read.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

hw/ppc405_boards.c

@@ -187,7 +187,6 @@ static void ref405ep_init (ram_addr_t ram_size,
     target_ulong kernel_base, kernel_size, initrd_base, initrd_size;
     int linux_boot;
     int fl_idx, fl_sectors, len;
-    int ppc_boot_device = boot_device[0];
     DriveInfo *dinfo;
 
     /* XXX: fix this */
@@ -326,7 +325,6 @@ static void ref405ep_init (ram_addr_t ram_size,
         }
         env->gpr[4] = initrd_base;
         env->gpr[5] = initrd_size;
-        ppc_boot_device = 'm';
         if (kernel_cmdline != NULL) {
             len = strlen(kernel_cmdline);
             bdloc -= ((len + 255) & ~255);
@@ -508,7 +506,6 @@ static void taihu_405ep_init(ram_addr_t ram_size,
     target_ulong kernel_base, kernel_size, initrd_base, initrd_size;
     int linux_boot;
     int fl_idx, fl_sectors;
-    int ppc_boot_device = boot_device[0];
     DriveInfo *dinfo;
 
     /* RAM is soldered to the board so the size cannot be changed */
@@ -625,7 +622,6 @@ static void taihu_405ep_init(ram_addr_t ram_size,
             initrd_base = 0;
             initrd_size = 0;
         }
-        ppc_boot_device = 'm';
     } else {
         kernel_base = 0;
         kernel_size = 0;

target-ppc/helper.c

@@ -198,7 +198,6 @@ static inline int _pte_check(mmu_ctx_t *ctx, int is_64b, target_ulong pte0,
     target_ulong ptem, mmask;
     int access, ret, pteh, ptev, pp;
 
-    access = 0;
     ret = -1;
     /* Check validity and table match */
 #if defined(TARGET_PPC64)
@@ -493,7 +492,7 @@ static inline int get_bat(CPUState *env, mmu_ctx_t *ctx, target_ulong virtual,
                           int rw, int type)
 {
     target_ulong *BATlt, *BATut, *BATu, *BATl;
-    target_ulong base, BEPIl, BEPIu, bl;
+    target_ulong BEPIl, BEPIu, bl;
     int i, valid, prot;
     int ret = -1;
 
@@ -509,7 +508,6 @@ static inline int get_bat(CPUState *env, mmu_ctx_t *ctx, target_ulong virtual,
         BATut = env->DBAT[0];
         break;
     }
-    base = virtual & 0xFFFC0000;
     for (i = 0; i < env->nb_BATs; i++) {
         BATu = &BATut[i];
         BATl = &BATlt[i];
@@ -1755,11 +1753,15 @@ void ppc_store_dbatl (CPUPPCState *env, int nr, target_ulong value)
 void ppc_store_ibatu_601 (CPUPPCState *env, int nr, target_ulong value)
 {
     target_ulong mask;
+#if defined(FLUSH_ALL_TLBS)
     int do_inval;
+#endif
 
     dump_store_bat(env, 'I', 0, nr, value);
     if (env->IBAT[0][nr] != value) {
+#if defined(FLUSH_ALL_TLBS)
         do_inval = 0;
+#endif
         mask = (env->IBAT[1][nr] << 17) & 0x0FFE0000UL;
         if (env->IBAT[1][nr] & 0x40) {
             /* Invalidate BAT only if it is valid */
@@ -1792,11 +1794,15 @@ void ppc_store_ibatu_601 (CPUPPCState *env, int nr, target_ulong value)
 void ppc_store_ibatl_601 (CPUPPCState *env, int nr, target_ulong value)
 {
     target_ulong mask;
+#if defined(FLUSH_ALL_TLBS)
     int do_inval;
+#endif
 
     dump_store_bat(env, 'I', 1, nr, value);
     if (env->IBAT[1][nr] != value) {
+#if defined(FLUSH_ALL_TLBS)
         do_inval = 0;
+#endif
         if (env->IBAT[1][nr] & 0x40) {
 #if !defined(FLUSH_ALL_TLBS)
             mask = (env->IBAT[1][nr] << 17) & 0x0FFE0000UL;

target-ppc/translate.c

@@ -3398,7 +3398,7 @@ static void gen_b(DisasContext *ctx)
 static inline void gen_bcond(DisasContext *ctx, int type)
 {
     uint32_t bo = BO(ctx->opcode);
-    int l1 = gen_new_label();
+    int l1;
     TCGv target;
 
     ctx->exception = POWERPC_EXCP_BRANCH;