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ppc: remove dead assignments, spotted by clang analyzer 

Value stored is never read.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Blue Swirl 2010-04-25 20:32:49 +00:00
parent b2c58871c9
commit 05f92404cd
3 changed files with 10 additions and 8 deletions
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4
hw/ppc405_boards.c
View File

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

12
target-ppc/helper.c
View File

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

2
target-ppc/translate.c
View File

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