target-s390: Delete dead code from old translator

The use of inline restricts detection of static functions that are
no longer used.  Limit the use of inline to those functions that
are conditionally used based on CONFIG_USER_ONLY.

Signed-off-by: Richard Henderson <rth@twiddle.net>

1 files changed, 27 insertions, 291 deletions

diff --git a/target-s390x/translate.c b/target-s390x/translate.c
index b4b197bb44..3d92a56a50 100644
--- a/target-s390x/translate.c
+++ b/target-s390x/translate.c
@@ -79,12 +79,7 @@ static uint64_t inline_branch_hit[CC_OP_MAX];
 static uint64_t inline_branch_miss[CC_OP_MAX];
 #endif
 
-static inline void debug_insn(uint64_t insn)
-{
-    LOG_DISAS("insn: 0x%" PRIx64 "\n", insn);
-}
-
-static inline uint64_t pc_to_link_info(DisasContext *s, uint64_t pc)
+static uint64_t pc_to_link_info(DisasContext *s, uint64_t pc)
 {
     if (!(s->tb->flags & FLAG_MASK_64)) {
         if (s->tb->flags & FLAG_MASK_32) {
@@ -200,112 +195,58 @@ void s390x_translate_init(void)
 #include "helper.h"
 }
 
-static inline TCGv_i64 load_reg(int reg)
+static TCGv_i64 load_reg(int reg)
 {
     TCGv_i64 r = tcg_temp_new_i64();
     tcg_gen_mov_i64(r, regs[reg]);
     return r;
 }
 
-static inline TCGv_i64 load_freg(int reg)
-{
-    TCGv_i64 r = tcg_temp_new_i64();
-    tcg_gen_mov_i64(r, fregs[reg]);
-    return r;
-}
-
-static inline TCGv_i32 load_freg32(int reg)
-{
-    TCGv_i32 r = tcg_temp_new_i32();
-#if HOST_LONG_BITS == 32
-    tcg_gen_mov_i32(r, TCGV_HIGH(fregs[reg]));
-#else
-    tcg_gen_shri_i64(MAKE_TCGV_I64(GET_TCGV_I32(r)), fregs[reg], 32);
-#endif
-    return r;
-}
-
-static inline TCGv_i64 load_freg32_i64(int reg)
+static TCGv_i64 load_freg32_i64(int reg)
 {
     TCGv_i64 r = tcg_temp_new_i64();
     tcg_gen_shri_i64(r, fregs[reg], 32);
     return r;
 }
 
-static inline TCGv_i32 load_reg32(int reg)
-{
-    TCGv_i32 r = tcg_temp_new_i32();
-    tcg_gen_trunc_i64_i32(r, regs[reg]);
-    return r;
-}
-
-static inline TCGv_i64 load_reg32_i64(int reg)
-{
-    TCGv_i64 r = tcg_temp_new_i64();
-    tcg_gen_ext32s_i64(r, regs[reg]);
-    return r;
-}
-
-static inline void store_reg(int reg, TCGv_i64 v)
+static void store_reg(int reg, TCGv_i64 v)
 {
     tcg_gen_mov_i64(regs[reg], v);
 }
 
-static inline void store_freg(int reg, TCGv_i64 v)
+static void store_freg(int reg, TCGv_i64 v)
 {
     tcg_gen_mov_i64(fregs[reg], v);
 }
 
-static inline void store_reg32(int reg, TCGv_i32 v)
-{
-    /* 32 bit register writes keep the upper half */
-#if HOST_LONG_BITS == 32
-    tcg_gen_mov_i32(TCGV_LOW(regs[reg]), v);
-#else
-    tcg_gen_deposit_i64(regs[reg], regs[reg],
-                        MAKE_TCGV_I64(GET_TCGV_I32(v)), 0, 32);
-#endif
-}
-
-static inline void store_reg32_i64(int reg, TCGv_i64 v)
+static void store_reg32_i64(int reg, TCGv_i64 v)
 {
     /* 32 bit register writes keep the upper half */
     tcg_gen_deposit_i64(regs[reg], regs[reg], v, 0, 32);
 }
 
-static inline void store_reg32h_i64(int reg, TCGv_i64 v)
+static void store_reg32h_i64(int reg, TCGv_i64 v)
 {
     tcg_gen_deposit_i64(regs[reg], regs[reg], v, 32, 32);
 }
 
-static inline void store_freg32(int reg, TCGv_i32 v)
-{
-    /* 32 bit register writes keep the lower half */
-#if HOST_LONG_BITS == 32
-    tcg_gen_mov_i32(TCGV_HIGH(fregs[reg]), v);
-#else
-    tcg_gen_deposit_i64(fregs[reg], fregs[reg],
-                        MAKE_TCGV_I64(GET_TCGV_I32(v)), 32, 32);
-#endif
-}
-
-static inline void store_freg32_i64(int reg, TCGv_i64 v)
+static void store_freg32_i64(int reg, TCGv_i64 v)
 {
     tcg_gen_deposit_i64(fregs[reg], fregs[reg], v, 32, 32);
 }
 
-static inline void return_low128(TCGv_i64 dest)
+static void return_low128(TCGv_i64 dest)
 {
     tcg_gen_ld_i64(dest, cpu_env, offsetof(CPUS390XState, retxl));
 }
 
-static inline void update_psw_addr(DisasContext *s)
+static void update_psw_addr(DisasContext *s)
 {
     /* psw.addr */
     tcg_gen_movi_i64(psw_addr, s->pc);
 }
 
-static inline void potential_page_fault(DisasContext *s)
+static void potential_page_fault(DisasContext *s)
 {
 #ifndef CONFIG_USER_ONLY
     update_psw_addr(s);
@@ -328,7 +269,7 @@ static inline uint64_t ld_code6(CPUS390XState *env, uint64_t pc)
     return (ld_code2(env, pc) << 32) | ld_code4(env, pc + 2);
 }
 
-static inline int get_mem_index(DisasContext *s)
+static int get_mem_index(DisasContext *s)
 {
     switch (s->tb->flags & FLAG_MASK_ASC) {
     case PSW_ASC_PRIMARY >> 32:
@@ -440,14 +381,6 @@ static void gen_op_update1_cc_i64(DisasContext *s, enum cc_op op, TCGv_i64 dst)
     s->cc_op = op;
 }
 
-static void gen_op_update1_cc_i32(DisasContext *s, enum cc_op op, TCGv_i32 dst)
-{
-    tcg_gen_discard_i64(cc_src);
-    tcg_gen_extu_i32_i64(cc_dst, dst);
-    tcg_gen_discard_i64(cc_vr);
-    s->cc_op = op;
-}
-
 static void gen_op_update2_cc_i64(DisasContext *s, enum cc_op op, TCGv_i64 src,
                                   TCGv_i64 dst)
 {
@@ -457,15 +390,6 @@ static void gen_op_update2_cc_i64(DisasContext *s, enum cc_op op, TCGv_i64 src,
     s->cc_op = op;
 }
 
-static void gen_op_update2_cc_i32(DisasContext *s, enum cc_op op, TCGv_i32 src,
-                                  TCGv_i32 dst)
-{
-    tcg_gen_extu_i32_i64(cc_src, src);
-    tcg_gen_extu_i32_i64(cc_dst, dst);
-    tcg_gen_discard_i64(cc_vr);
-    s->cc_op = op;
-}
-
 static void gen_op_update3_cc_i64(DisasContext *s, enum cc_op op, TCGv_i64 src,
                                   TCGv_i64 dst, TCGv_i64 vr)
 {
@@ -475,104 +399,28 @@ static void gen_op_update3_cc_i64(DisasContext *s, enum cc_op op, TCGv_i64 src,
     s->cc_op = op;
 }
 
-static inline void set_cc_nz_u32(DisasContext *s, TCGv_i32 val)
-{
-    gen_op_update1_cc_i32(s, CC_OP_NZ, val);
-}
-
-static inline void set_cc_nz_u64(DisasContext *s, TCGv_i64 val)
+static void set_cc_nz_u64(DisasContext *s, TCGv_i64 val)
 {
     gen_op_update1_cc_i64(s, CC_OP_NZ, val);
 }
 
-static inline void gen_set_cc_nz_f32(DisasContext *s, TCGv_i64 val)
+static void gen_set_cc_nz_f32(DisasContext *s, TCGv_i64 val)
 {
     gen_op_update1_cc_i64(s, CC_OP_NZ_F32, val);
 }
 
-static inline void gen_set_cc_nz_f64(DisasContext *s, TCGv_i64 val)
+static void gen_set_cc_nz_f64(DisasContext *s, TCGv_i64 val)
 {
     gen_op_update1_cc_i64(s, CC_OP_NZ_F64, val);
 }
 
-static inline void gen_set_cc_nz_f128(DisasContext *s, TCGv_i64 vh, TCGv_i64 vl)
+static void gen_set_cc_nz_f128(DisasContext *s, TCGv_i64 vh, TCGv_i64 vl)
 {
     gen_op_update2_cc_i64(s, CC_OP_NZ_F128, vh, vl);
 }
 
-static inline void cmp_32(DisasContext *s, TCGv_i32 v1, TCGv_i32 v2,
-                          enum cc_op cond)
-{
-    gen_op_update2_cc_i32(s, cond, v1, v2);
-}
-
-static inline void cmp_64(DisasContext *s, TCGv_i64 v1, TCGv_i64 v2,
-                          enum cc_op cond)
-{
-    gen_op_update2_cc_i64(s, cond, v1, v2);
-}
-
-static inline void cmp_s32(DisasContext *s, TCGv_i32 v1, TCGv_i32 v2)
-{
-    cmp_32(s, v1, v2, CC_OP_LTGT_32);
-}
-
-static inline void cmp_u32(DisasContext *s, TCGv_i32 v1, TCGv_i32 v2)
-{
-    cmp_32(s, v1, v2, CC_OP_LTUGTU_32);
-}
-
-static inline void cmp_s32c(DisasContext *s, TCGv_i32 v1, int32_t v2)
-{
-    /* XXX optimize for the constant? put it in s? */
-    TCGv_i32 tmp = tcg_const_i32(v2);
-    cmp_32(s, v1, tmp, CC_OP_LTGT_32);
-    tcg_temp_free_i32(tmp);
-}
-
-static inline void cmp_u32c(DisasContext *s, TCGv_i32 v1, uint32_t v2)
-{
-    TCGv_i32 tmp = tcg_const_i32(v2);
-    cmp_32(s, v1, tmp, CC_OP_LTUGTU_32);
-    tcg_temp_free_i32(tmp);
-}
-
-static inline void cmp_s64(DisasContext *s, TCGv_i64 v1, TCGv_i64 v2)
-{
-    cmp_64(s, v1, v2, CC_OP_LTGT_64);
-}
-
-static inline void cmp_u64(DisasContext *s, TCGv_i64 v1, TCGv_i64 v2)
-{
-    cmp_64(s, v1, v2, CC_OP_LTUGTU_64);
-}
-
-static inline void cmp_s64c(DisasContext *s, TCGv_i64 v1, int64_t v2)
-{
-    TCGv_i64 tmp = tcg_const_i64(v2);
-    cmp_s64(s, v1, tmp);
-    tcg_temp_free_i64(tmp);
-}
-
-static inline void cmp_u64c(DisasContext *s, TCGv_i64 v1, uint64_t v2)
-{
-    TCGv_i64 tmp = tcg_const_i64(v2);
-    cmp_u64(s, v1, tmp);
-    tcg_temp_free_i64(tmp);
-}
-
-static inline void set_cc_s32(DisasContext *s, TCGv_i32 val)
-{
-    gen_op_update1_cc_i32(s, CC_OP_LTGT0_32, val);
-}
-
-static inline void set_cc_s64(DisasContext *s, TCGv_i64 val)
-{
-    gen_op_update1_cc_i64(s, CC_OP_LTGT0_64, val);
-}
-
 /* CC value is in env->cc_op */
-static inline void set_cc_static(DisasContext *s)
+static void set_cc_static(DisasContext *s)
 {
     tcg_gen_discard_i64(cc_src);
     tcg_gen_discard_i64(cc_dst);
@@ -580,14 +428,14 @@ static inline void set_cc_static(DisasContext *s)
     s->cc_op = CC_OP_STATIC;
 }
 
-static inline void gen_op_set_cc_op(DisasContext *s)
+static void gen_op_set_cc_op(DisasContext *s)
 {
     if (s->cc_op != CC_OP_DYNAMIC && s->cc_op != CC_OP_STATIC) {
         tcg_gen_movi_i32(cc_op, s->cc_op);
     }
 }
 
-static inline void gen_update_cc_op(DisasContext *s)
+static void gen_update_cc_op(DisasContext *s)
 {
     gen_op_set_cc_op(s);
 }
@@ -667,51 +515,6 @@ static void gen_op_calc_cc(DisasContext *s)
     set_cc_static(s);
 }
 
-static inline void decode_rr(DisasContext *s, uint64_t insn, int *r1, int *r2)
-{
-    debug_insn(insn);
-
-    *r1 = (insn >> 4) & 0xf;
-    *r2 = insn & 0xf;
-}
-
-static inline TCGv_i64 decode_rx(DisasContext *s, uint64_t insn, int *r1,
-                                 int *x2, int *b2, int *d2)
-{
-    debug_insn(insn);
-
-    *r1 = (insn >> 20) & 0xf;
-    *x2 = (insn >> 16) & 0xf;
-    *b2 = (insn >> 12) & 0xf;
-    *d2 = insn & 0xfff;
-
-    return get_address(s, *x2, *b2, *d2);
-}
-
-static inline void decode_rs(DisasContext *s, uint64_t insn, int *r1, int *r3,
-                             int *b2, int *d2)
-{
-    debug_insn(insn);
-
-    *r1 = (insn >> 20) & 0xf;
-    /* aka m3 */
-    *r3 = (insn >> 16) & 0xf;
-    *b2 = (insn >> 12) & 0xf;
-    *d2 = insn & 0xfff;
-}
-
-static inline TCGv_i64 decode_si(DisasContext *s, uint64_t insn, int *i2,
-                                 int *b1, int *d1)
-{
-    debug_insn(insn);
-
-    *i2 = (insn >> 16) & 0xff;
-    *b1 = (insn >> 12) & 0xf;
-    *d1 = insn & 0xfff;
-
-    return get_address(s, 0, *b1, *d1);
-}
-
 static int use_goto_tb(DisasContext *s, uint64_t dest)
 {
     /* NOTE: we handle the case where the TB spans two pages here */
@@ -721,29 +524,14 @@ static int use_goto_tb(DisasContext *s, uint64_t dest)
             && !(s->tb->cflags & CF_LAST_IO));
 }
 
-static inline void gen_goto_tb(DisasContext *s, int tb_num, target_ulong pc)
-{
-    gen_update_cc_op(s);
-
-    if (use_goto_tb(s, pc)) {
-        tcg_gen_goto_tb(tb_num);
-        tcg_gen_movi_i64(psw_addr, pc);
-        tcg_gen_exit_tb((tcg_target_long)s->tb + tb_num);
-    } else {
-        /* jump to another page: currently not optimized */
-        tcg_gen_movi_i64(psw_addr, pc);
-        tcg_gen_exit_tb(0);
-    }
-}
-
-static inline void account_noninline_branch(DisasContext *s, int cc_op)
+static void account_noninline_branch(DisasContext *s, int cc_op)
 {
 #ifdef DEBUG_INLINE_BRANCHES
     inline_branch_miss[cc_op]++;
 #endif
 }
 
-static inline void account_inline_branch(DisasContext *s, int cc_op)
+static void account_inline_branch(DisasContext *s, int cc_op)
 {
 #ifdef DEBUG_INLINE_BRANCHES
     inline_branch_hit[cc_op]++;
@@ -1018,43 +806,6 @@ static void free_compare(DisasCompare *c)
     }
 }
 
-static void disas_b2(CPUS390XState *env, DisasContext *s, int op,
-                     uint32_t insn)
-{
-#ifndef CONFIG_USER_ONLY
-    switch (op) {
-    default:
-#endif
-        LOG_DISAS("illegal b2 operation 0x%x\n", op);
-        gen_illegal_opcode(s);
-#ifndef CONFIG_USER_ONLY
-        break;
-    }
-#endif
-}
-
-static void disas_s390_insn(CPUS390XState *env, DisasContext *s)
-{
-    unsigned char opc;
-    uint64_t insn;
-    int op;
-
-    opc = cpu_ldub_code(env, s->pc);
-    LOG_DISAS("opc 0x%x\n", opc);
-
-    switch (opc) {
-    case 0xb2:
-        insn = ld_code4(env, s->pc);
-        op = (insn >> 16) & 0xff;
-        disas_b2(env, s, op, insn);
-        break;
-    default:
-        qemu_log_mask(LOG_UNIMP, "unimplemented opcode 0x%x\n", opc);
-        gen_illegal_opcode(s);
-        break;
-    }
-}
-
 /* ====================================================================== */
 /* Define the insn format enumeration.  */
 #define F0(N)                         FMT_##N,
@@ -4108,30 +3859,15 @@ static ExitStatus translate_one(CPUS390XState *env, DisasContext *s)
     DisasFields f;
     DisasOps o;
 
+    /* Search for the insn in the table.  */
     insn = extract_insn(env, s, &f);
 
-    /* If not found, try the old interpreter.  This includes ILLOPC.  */
+    /* Not found means unimplemented/illegal opcode.  */
     if (insn == NULL) {
-        disas_s390_insn(env, s);
-        switch (s->is_jmp) {
-        case DISAS_NEXT:
-            ret = NO_EXIT;
-            break;
-        case DISAS_TB_JUMP:
-            ret = EXIT_GOTO_TB;
-            break;
-        case DISAS_JUMP:
-            ret = EXIT_PC_UPDATED;
-            break;
-        case DISAS_EXCP:
-            ret = EXIT_NORETURN;
-            break;
-        default:
-            abort();
-        }
-
-        s->pc = s->next_pc;
-        return ret;
+        qemu_log_mask(LOG_UNIMP, "unimplemented opcode 0x%02x%02x\n",
+                      f.op, f.op2);
+        gen_illegal_opcode(s);
+        return EXIT_NORETURN;
     }
 
     /* Set up the strutures we use to communicate with the helpers. */