Adding upstream version 6.0.4-dfsg.upstream/6.0.4-dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 2212 insertions, 0 deletions

diff --git a/src/recompiler/tcg/tcg.c b/src/recompiler/tcg/tcg.c
new file mode 100644
index 00000000..4e636099
--- /dev/null
+++ b/src/recompiler/tcg/tcg.c
@@ -0,0 +1,2212 @@
+/*
+ * Tiny Code Generator for QEMU
+ *
+ * Copyright (c) 2008 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+/* define it to use liveness analysis (better code) */
+#define USE_LIVENESS_ANALYSIS
+
+#include "config.h"
+
+#if !defined(CONFIG_DEBUG_TCG) && !defined(NDEBUG)
+/* define it to suppress various consistency checks (faster) */
+#define NDEBUG
+#endif
+
+#ifndef VBOX
+#include <stdarg.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <inttypes.h>
+#ifdef _WIN32
+#include <malloc.h>
+#endif
+#ifdef _AIX
+#include <alloca.h>
+#endif
+#else  /* VBOX */
+# include <stdio.h>
+# include "osdep.h"
+#endif /* VBOX */
+
+#include "qemu-common.h"
+#include "cache-utils.h"
+#include "host-utils.h"
+#include "qemu-timer.h"
+
+/* Note: the long term plan is to reduce the dependancies on the QEMU
+   CPU definitions. Currently they are used for qemu_ld/st
+   instructions */
+#define NO_CPU_IO_DEFS
+#include "cpu.h"
+#include "exec-all.h"
+
+#include "tcg-op.h"
+#include "elf.h"
+
+#if defined(CONFIG_USE_GUEST_BASE) && !defined(TCG_TARGET_HAS_GUEST_BASE)
+#error GUEST_BASE not supported on this host.
+#endif
+
+#ifdef VBOX
+/*
+ * Liveness analysis doesn't work well with 32-bit hosts and 64-bit targets,
+ * second element of the register pair to store 64-bit value is considered
+ * dead, it seems. */
+ /** @todo re-test this */
+# if defined(TARGET_X86_64) && (TCG_TARGET_REG_BITS == 32)
+#  undef USE_LIVENESS_ANALYSIS
+# endif
+#endif /* VBOX */
+
+static void tcg_target_init(TCGContext *s);
+static void tcg_target_qemu_prologue(TCGContext *s);
+static void patch_reloc(uint8_t *code_ptr, int type,
+                        tcg_target_long value, tcg_target_long addend);
+
+static TCGOpDef tcg_op_defs[] = {
+#define DEF(s, oargs, iargs, cargs, flags) { #s, oargs, iargs, cargs, iargs + oargs + cargs, flags },
+#include "tcg-opc.h"
+#undef DEF
+};
+
+static TCGRegSet tcg_target_available_regs[2];
+static TCGRegSet tcg_target_call_clobber_regs;
+
+/* XXX: move that inside the context */
+uint16_t *gen_opc_ptr;
+TCGArg *gen_opparam_ptr;
+
+static inline void tcg_out8(TCGContext *s, uint8_t v)
+{
+    *s->code_ptr++ = v;
+}
+
+static inline void tcg_out16(TCGContext *s, uint16_t v)
+{
+    *(uint16_t *)s->code_ptr = v;
+    s->code_ptr += 2;
+}
+
+static inline void tcg_out32(TCGContext *s, uint32_t v)
+{
+    *(uint32_t *)s->code_ptr = v;
+    s->code_ptr += 4;
+}
+
+/* label relocation processing */
+
+static void tcg_out_reloc(TCGContext *s, uint8_t *code_ptr, int type,
+                          int label_index, tcg_target_long addend)
+{
+    TCGLabel *l;
+    TCGRelocation *r;
+
+    l = &s->labels[label_index];
+    if (l->has_value) {
+        /* FIXME: This may break relocations on RISC targets that
+           modify instruction fields in place.  The caller may not have
+           written the initial value.  */
+        patch_reloc(code_ptr, type, l->u.value, addend);
+    } else {
+        /* add a new relocation entry */
+        r = tcg_malloc(sizeof(TCGRelocation));
+        r->type = type;
+        r->ptr = code_ptr;
+        r->addend = addend;
+        r->next = l->u.first_reloc;
+        l->u.first_reloc = r;
+    }
+}
+
+static void tcg_out_label(TCGContext *s, int label_index,
+                          tcg_target_long value)
+{
+    TCGLabel *l;
+    TCGRelocation *r;
+
+    l = &s->labels[label_index];
+    if (l->has_value)
+        tcg_abort();
+    r = l->u.first_reloc;
+    while (r != NULL) {
+        patch_reloc(r->ptr, r->type, value, r->addend);
+        r = r->next;
+    }
+    l->has_value = 1;
+    l->u.value = value;
+}
+
+int gen_new_label(void)
+{
+    TCGContext *s = &tcg_ctx;
+    int idx;
+    TCGLabel *l;
+
+    if (s->nb_labels >= TCG_MAX_LABELS)
+        tcg_abort();
+    idx = s->nb_labels++;
+    l = &s->labels[idx];
+    l->has_value = 0;
+    l->u.first_reloc = NULL;
+    return idx;
+}
+
+#include "tcg-target.c"
+
+/* pool based memory allocation */
+void *tcg_malloc_internal(TCGContext *s, int size)
+{
+    TCGPool *p;
+    int pool_size;
+
+    if (size > TCG_POOL_CHUNK_SIZE) {
+        /* big malloc: insert a new pool (XXX: could optimize) */
+        p = qemu_malloc(sizeof(TCGPool) + size);
+        p->size = size;
+        if (s->pool_current)
+            s->pool_current->next = p;
+        else
+            s->pool_first = p;
+        p->next = s->pool_current;
+    } else {
+        p = s->pool_current;
+        if (!p) {
+            p = s->pool_first;
+            if (!p)
+                goto new_pool;
+        } else {
+            if (!p->next) {
+            new_pool:
+                pool_size = TCG_POOL_CHUNK_SIZE;
+                p = qemu_malloc(sizeof(TCGPool) + pool_size);
+                p->size = pool_size;
+                p->next = NULL;
+                if (s->pool_current)
+                    s->pool_current->next = p;
+                else
+                    s->pool_first = p;
+            } else {
+                p = p->next;
+            }
+        }
+    }
+    s->pool_current = p;
+    s->pool_cur = p->data + size;
+    s->pool_end = p->data + p->size;
+    return p->data;
+}
+
+void tcg_pool_reset(TCGContext *s)
+{
+    s->pool_cur = s->pool_end = NULL;
+    s->pool_current = NULL;
+}
+
+void tcg_context_init(TCGContext *s)
+{
+    int op, total_args, n;
+    TCGOpDef *def;
+    TCGArgConstraint *args_ct;
+    int *sorted_args;
+
+    memset(s, 0, sizeof(*s));
+    s->temps = s->static_temps;
+    s->nb_globals = 0;
+
+    /* Count total number of arguments and allocate the corresponding
+       space */
+    total_args = 0;
+    for(op = 0; op < NB_OPS; op++) {
+        def = &tcg_op_defs[op];
+        n = def->nb_iargs + def->nb_oargs;
+        total_args += n;
+    }
+
+    args_ct = qemu_malloc(sizeof(TCGArgConstraint) * total_args);
+    sorted_args = qemu_malloc(sizeof(int) * total_args);
+
+    for(op = 0; op < NB_OPS; op++) {
+        def = &tcg_op_defs[op];
+        def->args_ct = args_ct;
+        def->sorted_args = sorted_args;
+        n = def->nb_iargs + def->nb_oargs;
+        sorted_args += n;
+        args_ct += n;
+    }
+
+    tcg_target_init(s);
+}
+
+void tcg_prologue_init(TCGContext *s)
+{
+    /* init global prologue and epilogue */
+    s->code_buf = code_gen_prologue;
+    s->code_ptr = s->code_buf;
+    tcg_target_qemu_prologue(s);
+    flush_icache_range((uintptr_t)s->code_buf,
+                       (uintptr_t)s->code_ptr);
+}
+
+void tcg_set_frame(TCGContext *s, int reg,
+                   tcg_target_long start, tcg_target_long size)
+{
+    s->frame_start = start;
+    s->frame_end = start + size;
+    s->frame_reg = reg;
+}
+
+void tcg_func_start(TCGContext *s)
+{
+    int i;
+    tcg_pool_reset(s);
+    s->nb_temps = s->nb_globals;
+    for(i = 0; i < (TCG_TYPE_COUNT * 2); i++)
+        s->first_free_temp[i] = -1;
+    s->labels = tcg_malloc(sizeof(TCGLabel) * TCG_MAX_LABELS);
+    s->nb_labels = 0;
+    s->current_frame_offset = s->frame_start;
+
+    gen_opc_ptr = gen_opc_buf;
+    gen_opparam_ptr = gen_opparam_buf;
+}
+
+static inline void tcg_temp_alloc(TCGContext *s, int n)
+{
+    if (n > TCG_MAX_TEMPS)
+        tcg_abort();
+}
+
+static inline int tcg_global_reg_new_internal(TCGType type, int reg,
+                                              const char *name)
+{
+    TCGContext *s = &tcg_ctx;
+    TCGTemp *ts;
+    int idx;
+
+#if TCG_TARGET_REG_BITS == 32
+    if (type != TCG_TYPE_I32)
+        tcg_abort();
+#endif
+    if (tcg_regset_test_reg(s->reserved_regs, reg))
+        tcg_abort();
+    idx = s->nb_globals;
+    tcg_temp_alloc(s, s->nb_globals + 1);
+    ts = &s->temps[s->nb_globals];
+    ts->base_type = type;
+    ts->type = type;
+    ts->fixed_reg = 1;
+    ts->reg = reg;
+    ts->name = name;
+    s->nb_globals++;
+    tcg_regset_set_reg(s->reserved_regs, reg);
+    return idx;
+}
+
+TCGv_i32 tcg_global_reg_new_i32(int reg, const char *name)
+{
+    int idx;
+
+    idx = tcg_global_reg_new_internal(TCG_TYPE_I32, reg, name);
+    return MAKE_TCGV_I32(idx);
+}
+
+TCGv_i64 tcg_global_reg_new_i64(int reg, const char *name)
+{
+    int idx;
+
+    idx = tcg_global_reg_new_internal(TCG_TYPE_I64, reg, name);
+    return MAKE_TCGV_I64(idx);
+}
+
+static inline int tcg_global_mem_new_internal(TCGType type, int reg,
+                                              tcg_target_long offset,
+                                              const char *name)
+{
+    TCGContext *s = &tcg_ctx;
+    TCGTemp *ts;
+    int idx;
+
+    idx = s->nb_globals;
+#if TCG_TARGET_REG_BITS == 32
+    if (type == TCG_TYPE_I64) {
+        char buf[64];
+        tcg_temp_alloc(s, s->nb_globals + 2);
+        ts = &s->temps[s->nb_globals];
+        ts->base_type = type;
+        ts->type = TCG_TYPE_I32;
+        ts->fixed_reg = 0;
+        ts->mem_allocated = 1;
+        ts->mem_reg = reg;
+#ifdef TCG_TARGET_WORDS_BIGENDIAN
+        ts->mem_offset = offset + 4;
+#else
+        ts->mem_offset = offset;
+#endif
+        pstrcpy(buf, sizeof(buf), name);
+        pstrcat(buf, sizeof(buf), "_0");
+        ts->name = strdup(buf);
+        ts++;
+
+        ts->base_type = type;
+        ts->type = TCG_TYPE_I32;
+        ts->fixed_reg = 0;
+        ts->mem_allocated = 1;
+        ts->mem_reg = reg;
+#ifdef TCG_TARGET_WORDS_BIGENDIAN
+        ts->mem_offset = offset;
+#else
+        ts->mem_offset = offset + 4;
+#endif
+        pstrcpy(buf, sizeof(buf), name);
+        pstrcat(buf, sizeof(buf), "_1");
+        ts->name = strdup(buf);
+
+        s->nb_globals += 2;
+    } else
+#endif
+    {
+        tcg_temp_alloc(s, s->nb_globals + 1);
+        ts = &s->temps[s->nb_globals];
+        ts->base_type = type;
+        ts->type = type;
+        ts->fixed_reg = 0;
+        ts->mem_allocated = 1;
+        ts->mem_reg = reg;
+        ts->mem_offset = offset;
+        ts->name = name;
+        s->nb_globals++;
+    }
+    return idx;
+}
+
+TCGv_i32 tcg_global_mem_new_i32(int reg, tcg_target_long offset,
+                                const char *name)
+{
+    int idx;
+
+    idx = tcg_global_mem_new_internal(TCG_TYPE_I32, reg, offset, name);
+    return MAKE_TCGV_I32(idx);
+}
+
+TCGv_i64 tcg_global_mem_new_i64(int reg, tcg_target_long offset,
+                                const char *name)
+{
+    int idx;
+
+    idx = tcg_global_mem_new_internal(TCG_TYPE_I64, reg, offset, name);
+    return MAKE_TCGV_I64(idx);
+}
+
+static inline int tcg_temp_new_internal(TCGType type, int temp_local)
+{
+    TCGContext *s = &tcg_ctx;
+    TCGTemp *ts;
+    int idx, k;
+
+    k = type;
+    if (temp_local)
+        k += TCG_TYPE_COUNT;
+    idx = s->first_free_temp[k];
+    if (idx != -1) {
+        /* There is already an available temp with the
+           right type */
+        ts = &s->temps[idx];
+        s->first_free_temp[k] = ts->next_free_temp;
+        ts->temp_allocated = 1;
+        assert(ts->temp_local == temp_local);
+    } else {
+        idx = s->nb_temps;
+#if TCG_TARGET_REG_BITS == 32
+        if (type == TCG_TYPE_I64) {
+            tcg_temp_alloc(s, s->nb_temps + 2);
+            ts = &s->temps[s->nb_temps];
+            ts->base_type = type;
+            ts->type = TCG_TYPE_I32;
+            ts->temp_allocated = 1;
+            ts->temp_local = temp_local;
+            ts->name = NULL;
+            ts++;
+            ts->base_type = TCG_TYPE_I32;
+            ts->type = TCG_TYPE_I32;
+            ts->temp_allocated = 1;
+            ts->temp_local = temp_local;
+            ts->name = NULL;
+            s->nb_temps += 2;
+        } else
+#endif
+        {
+            tcg_temp_alloc(s, s->nb_temps + 1);
+            ts = &s->temps[s->nb_temps];
+            ts->base_type = type;
+            ts->type = type;
+            ts->temp_allocated = 1;
+            ts->temp_local = temp_local;
+            ts->name = NULL;
+            s->nb_temps++;
+        }
+    }
+    return idx;
+}
+
+TCGv_i32 tcg_temp_new_internal_i32(int temp_local)
+{
+    int idx;
+
+    idx = tcg_temp_new_internal(TCG_TYPE_I32, temp_local);
+    return MAKE_TCGV_I32(idx);
+}
+
+TCGv_i64 tcg_temp_new_internal_i64(int temp_local)
+{
+    int idx;
+
+    idx = tcg_temp_new_internal(TCG_TYPE_I64, temp_local);
+    return MAKE_TCGV_I64(idx);
+}
+
+static inline void tcg_temp_free_internal(int idx)
+{
+    TCGContext *s = &tcg_ctx;
+    TCGTemp *ts;
+    int k;
+
+    assert(idx >= s->nb_globals && idx < s->nb_temps);
+    ts = &s->temps[idx];
+    assert(ts->temp_allocated != 0);
+    ts->temp_allocated = 0;
+    k = ts->base_type;
+    if (ts->temp_local)
+        k += TCG_TYPE_COUNT;
+    ts->next_free_temp = s->first_free_temp[k];
+    s->first_free_temp[k] = idx;
+}
+
+void tcg_temp_free_i32(TCGv_i32 arg)
+{
+    tcg_temp_free_internal(GET_TCGV_I32(arg));
+}
+
+void tcg_temp_free_i64(TCGv_i64 arg)
+{
+    tcg_temp_free_internal(GET_TCGV_I64(arg));
+}
+
+TCGv_i32 tcg_const_i32(int32_t val)
+{
+    TCGv_i32 t0;
+    t0 = tcg_temp_new_i32();
+    tcg_gen_movi_i32(t0, val);
+    return t0;
+}
+
+TCGv_i64 tcg_const_i64(int64_t val)
+{
+    TCGv_i64 t0;
+    t0 = tcg_temp_new_i64();
+    tcg_gen_movi_i64(t0, val);
+    return t0;
+}
+
+TCGv_i32 tcg_const_local_i32(int32_t val)
+{
+    TCGv_i32 t0;
+    t0 = tcg_temp_local_new_i32();
+    tcg_gen_movi_i32(t0, val);
+    return t0;
+}
+
+TCGv_i64 tcg_const_local_i64(int64_t val)
+{
+    TCGv_i64 t0;
+    t0 = tcg_temp_local_new_i64();
+    tcg_gen_movi_i64(t0, val);
+    return t0;
+}
+
+void tcg_register_helper(void *func, const char *name)
+{
+    TCGContext *s = &tcg_ctx;
+    int n;
+    if ((s->nb_helpers + 1) > s->allocated_helpers) {
+        n = s->allocated_helpers;
+        if (n == 0) {
+            n = 4;
+        } else {
+            n *= 2;
+        }
+#ifdef VBOX
+        s->helpers = qemu_realloc(s->helpers, n * sizeof(TCGHelperInfo));
+#else
+        s->helpers = realloc(s->helpers, n * sizeof(TCGHelperInfo));
+#endif
+        s->allocated_helpers = n;
+    }
+    s->helpers[s->nb_helpers].func = (tcg_target_ulong)func;
+    s->helpers[s->nb_helpers].name = name;
+    s->nb_helpers++;
+}
+
+/* Note: we convert the 64 bit args to 32 bit and do some alignment
+   and endian swap. Maybe it would be better to do the alignment
+   and endian swap in tcg_reg_alloc_call(). */
+void tcg_gen_callN(TCGContext *s, TCGv_ptr func, unsigned int flags,
+                   int sizemask, TCGArg ret, int nargs, TCGArg *args)
+{
+#ifdef TCG_TARGET_I386
+    int call_type;
+#endif
+    int i;
+    int real_args;
+    int nb_rets;
+    TCGArg *nparam;
+
+#if defined(TCG_TARGET_EXTEND_ARGS) && TCG_TARGET_REG_BITS == 64
+    for (i = 0; i < nargs; ++i) {
+        int is_64bit = sizemask & (1 << (i+1)*2);
+        int is_signed = sizemask & (2 << (i+1)*2);
+        if (!is_64bit) {
+            TCGv_i64 temp = tcg_temp_new_i64();
+            TCGv_i64 orig = MAKE_TCGV_I64(args[i]);
+            if (is_signed) {
+                tcg_gen_ext32s_i64(temp, orig);
+            } else {
+                tcg_gen_ext32u_i64(temp, orig);
+            }
+            args[i] = GET_TCGV_I64(temp);
+        }
+    }
+#endif /* TCG_TARGET_EXTEND_ARGS */
+
+    *gen_opc_ptr++ = INDEX_op_call;
+    nparam = gen_opparam_ptr++;
+#ifdef TCG_TARGET_I386
+    call_type = (flags & TCG_CALL_TYPE_MASK);
+#endif
+    if (ret != TCG_CALL_DUMMY_ARG) {
+#if TCG_TARGET_REG_BITS < 64
+        if (sizemask & 1) {
+#ifdef TCG_TARGET_WORDS_BIGENDIAN
+            *gen_opparam_ptr++ = ret + 1;
+            *gen_opparam_ptr++ = ret;
+#else
+            *gen_opparam_ptr++ = ret;
+            *gen_opparam_ptr++ = ret + 1;
+#endif
+            nb_rets = 2;
+        } else
+#endif
+        {
+            *gen_opparam_ptr++ = ret;
+            nb_rets = 1;
+        }
+    } else {
+        nb_rets = 0;
+    }
+    real_args = 0;
+    for (i = 0; i < nargs; i++) {
+#if TCG_TARGET_REG_BITS < 64
+        int is_64bit = sizemask & (1 << (i+1)*2);
+        if (is_64bit) {
+#ifdef TCG_TARGET_I386
+            /* REGPARM case: if the third parameter is 64 bit, it is
+               allocated on the stack */
+            if (i == 2 && call_type == TCG_CALL_TYPE_REGPARM) {
+                call_type = TCG_CALL_TYPE_REGPARM_2;
+                flags = (flags & ~TCG_CALL_TYPE_MASK) | call_type;
+            }
+#endif
+#ifdef TCG_TARGET_CALL_ALIGN_ARGS
+            /* some targets want aligned 64 bit args */
+            if (real_args & 1) {
+                *gen_opparam_ptr++ = TCG_CALL_DUMMY_ARG;
+                real_args++;
+            }
+#endif
+	    /* If stack grows up, then we will be placing successive
+	       arguments at lower addresses, which means we need to
+	       reverse the order compared to how we would normally
+	       treat either big or little-endian.  For those arguments
+	       that will wind up in registers, this still works for
+	       HPPA (the only current STACK_GROWSUP target) since the
+	       argument registers are *also* allocated in decreasing
+	       order.  If another such target is added, this logic may
+	       have to get more complicated to differentiate between
+	       stack arguments and register arguments.  */
+#if defined(TCG_TARGET_WORDS_BIGENDIAN) != defined(TCG_TARGET_STACK_GROWSUP)
+            *gen_opparam_ptr++ = args[i] + 1;
+            *gen_opparam_ptr++ = args[i];
+#else
+            *gen_opparam_ptr++ = args[i];
+            *gen_opparam_ptr++ = args[i] + 1;
+#endif
+            real_args += 2;
+            continue;
+        }
+#endif /* TCG_TARGET_REG_BITS < 64 */
+
+        *gen_opparam_ptr++ = args[i];
+        real_args++;
+    }
+    *gen_opparam_ptr++ = GET_TCGV_PTR(func);
+
+    *gen_opparam_ptr++ = flags;
+
+    *nparam = (nb_rets << 16) | (real_args + 1);
+
+    /* total parameters, needed to go backward in the instruction stream */
+    *gen_opparam_ptr++ = 1 + nb_rets + real_args + 3;
+
+#if defined(TCG_TARGET_EXTEND_ARGS) && TCG_TARGET_REG_BITS == 64
+    for (i = 0; i < nargs; ++i) {
+        int is_64bit = sizemask & (1 << (i+1)*2);
+        if (!is_64bit) {
+            TCGv_i64 temp = MAKE_TCGV_I64(args[i]);
+            tcg_temp_free_i64(temp);
+        }
+    }
+#endif /* TCG_TARGET_EXTEND_ARGS */
+}
+
+#if TCG_TARGET_REG_BITS == 32
+void tcg_gen_shifti_i64(TCGv_i64 ret, TCGv_i64 arg1,
+                        int c, int right, int arith)
+{
+    if (c == 0) {
+        tcg_gen_mov_i32(TCGV_LOW(ret), TCGV_LOW(arg1));
+        tcg_gen_mov_i32(TCGV_HIGH(ret), TCGV_HIGH(arg1));
+    } else if (c >= 32) {
+        c -= 32;
+        if (right) {
+            if (arith) {
+                tcg_gen_sari_i32(TCGV_LOW(ret), TCGV_HIGH(arg1), c);
+                tcg_gen_sari_i32(TCGV_HIGH(ret), TCGV_HIGH(arg1), 31);
+            } else {
+                tcg_gen_shri_i32(TCGV_LOW(ret), TCGV_HIGH(arg1), c);
+                tcg_gen_movi_i32(TCGV_HIGH(ret), 0);
+            }
+        } else {
+            tcg_gen_shli_i32(TCGV_HIGH(ret), TCGV_LOW(arg1), c);
+            tcg_gen_movi_i32(TCGV_LOW(ret), 0);
+        }
+    } else {
+        TCGv_i32 t0, t1;
+
+        t0 = tcg_temp_new_i32();
+        t1 = tcg_temp_new_i32();
+        if (right) {
+            tcg_gen_shli_i32(t0, TCGV_HIGH(arg1), 32 - c);
+            if (arith)
+                tcg_gen_sari_i32(t1, TCGV_HIGH(arg1), c);
+            else
+                tcg_gen_shri_i32(t1, TCGV_HIGH(arg1), c);
+            tcg_gen_shri_i32(TCGV_LOW(ret), TCGV_LOW(arg1), c);
+            tcg_gen_or_i32(TCGV_LOW(ret), TCGV_LOW(ret), t0);
+            tcg_gen_mov_i32(TCGV_HIGH(ret), t1);
+        } else {
+            tcg_gen_shri_i32(t0, TCGV_LOW(arg1), 32 - c);
+            /* Note: ret can be the same as arg1, so we use t1 */
+            tcg_gen_shli_i32(t1, TCGV_LOW(arg1), c);
+            tcg_gen_shli_i32(TCGV_HIGH(ret), TCGV_HIGH(arg1), c);
+            tcg_gen_or_i32(TCGV_HIGH(ret), TCGV_HIGH(ret), t0);
+            tcg_gen_mov_i32(TCGV_LOW(ret), t1);
+        }
+        tcg_temp_free_i32(t0);
+        tcg_temp_free_i32(t1);
+    }
+}
+#endif
+
+
+static void tcg_reg_alloc_start(TCGContext *s)
+{
+    int i;
+    TCGTemp *ts;
+    for(i = 0; i < s->nb_globals; i++) {
+        ts = &s->temps[i];
+        if (ts->fixed_reg) {
+            ts->val_type = TEMP_VAL_REG;
+        } else {
+            ts->val_type = TEMP_VAL_MEM;
+        }
+    }
+    for(i = s->nb_globals; i < s->nb_temps; i++) {
+        ts = &s->temps[i];
+        ts->val_type = TEMP_VAL_DEAD;
+        ts->mem_allocated = 0;
+        ts->fixed_reg = 0;
+    }
+    for(i = 0; i < TCG_TARGET_NB_REGS; i++) {
+        s->reg_to_temp[i] = -1;
+    }
+}
+
+static char *tcg_get_arg_str_idx(TCGContext *s, char *buf, int buf_size,
+                                 int idx)
+{
+    TCGTemp *ts;
+
+    ts = &s->temps[idx];
+    if (idx < s->nb_globals) {
+        pstrcpy(buf, buf_size, ts->name);
+    } else {
+        if (ts->temp_local)
+            snprintf(buf, buf_size, "loc%d", idx - s->nb_globals);
+        else
+            snprintf(buf, buf_size, "tmp%d", idx - s->nb_globals);
+    }
+    return buf;
+}
+
+char *tcg_get_arg_str_i32(TCGContext *s, char *buf, int buf_size, TCGv_i32 arg)
+{
+    return tcg_get_arg_str_idx(s, buf, buf_size, GET_TCGV_I32(arg));
+}
+
+char *tcg_get_arg_str_i64(TCGContext *s, char *buf, int buf_size, TCGv_i64 arg)
+{
+    return tcg_get_arg_str_idx(s, buf, buf_size, GET_TCGV_I64(arg));
+}
+
+static int helper_cmp(const void *p1, const void *p2)
+{
+    const TCGHelperInfo *th1 = p1;
+    const TCGHelperInfo *th2 = p2;
+    if (th1->func < th2->func)
+        return -1;
+    else if (th1->func == th2->func)
+        return 0;
+    else
+        return 1;
+}
+
+/* find helper definition (Note: A hash table would be better) */
+static TCGHelperInfo *tcg_find_helper(TCGContext *s, tcg_target_ulong val)
+{
+    int m, m_min, m_max;
+    TCGHelperInfo *th;
+    tcg_target_ulong v;
+
+    if (unlikely(!s->helpers_sorted)) {
+#ifdef VBOX
+        qemu_qsort(s->helpers, s->nb_helpers, sizeof(TCGHelperInfo),
+              helper_cmp);
+#else
+        qsort(s->helpers, s->nb_helpers, sizeof(TCGHelperInfo),
+              helper_cmp);
+#endif
+        s->helpers_sorted = 1;
+    }
+
+    /* binary search */
+    m_min = 0;
+    m_max = s->nb_helpers - 1;
+    while (m_min <= m_max) {
+        m = (m_min + m_max) >> 1;
+        th = &s->helpers[m];
+        v = th->func;
+        if (v == val)
+            return th;
+        else if (val < v) {
+            m_max = m - 1;
+        } else {
+            m_min = m + 1;
+        }
+    }
+    return NULL;
+}
+
+static const char * const cond_name[] =
+{
+    [TCG_COND_EQ] = "eq",
+    [TCG_COND_NE] = "ne",
+    [TCG_COND_LT] = "lt",
+    [TCG_COND_GE] = "ge",
+    [TCG_COND_LE] = "le",
+    [TCG_COND_GT] = "gt",
+    [TCG_COND_LTU] = "ltu",
+    [TCG_COND_GEU] = "geu",
+    [TCG_COND_LEU] = "leu",
+    [TCG_COND_GTU] = "gtu"
+};
+
+void tcg_dump_ops(TCGContext *s, FILE *outfile)
+{
+    const uint16_t *opc_ptr;
+    const TCGArg *args;
+    TCGArg arg;
+    TCGOpcode c;
+    int i, k, nb_oargs, nb_iargs, nb_cargs, first_insn;
+    const TCGOpDef *def;
+    char buf[128];
+
+    first_insn = 1;
+    opc_ptr = gen_opc_buf;
+    args = gen_opparam_buf;
+    while (opc_ptr < gen_opc_ptr) {
+        c = *opc_ptr++;
+        def = &tcg_op_defs[c];
+        if (c == INDEX_op_debug_insn_start) {
+            uint64_t pc;
+#if TARGET_LONG_BITS > TCG_TARGET_REG_BITS
+            pc = ((uint64_t)args[1] << 32) | args[0];
+#else
+            pc = args[0];
+#endif
+            if (!first_insn)
+                fprintf(outfile, "\n");
+            fprintf(outfile, " ---- 0x%" PRIx64, pc);
+            first_insn = 0;
+            nb_oargs = def->nb_oargs;
+            nb_iargs = def->nb_iargs;
+            nb_cargs = def->nb_cargs;
+        } else if (c == INDEX_op_call) {
+            TCGArg arg;
+
+            /* variable number of arguments */
+            arg = *args++;
+            nb_oargs = arg >> 16;
+            nb_iargs = arg & 0xffff;
+            nb_cargs = def->nb_cargs;
+
+            fprintf(outfile, " %s ", def->name);
+
+            /* function name */
+            fprintf(outfile, "%s",
+                    tcg_get_arg_str_idx(s, buf, sizeof(buf), args[nb_oargs + nb_iargs - 1]));
+            /* flags */
+            fprintf(outfile, ",$0x%" TCG_PRIlx,
+                    args[nb_oargs + nb_iargs]);
+            /* nb out args */
+            fprintf(outfile, ",$%d", nb_oargs);
+            for(i = 0; i < nb_oargs; i++) {
+                fprintf(outfile, ",");
+                fprintf(outfile, "%s",
+                        tcg_get_arg_str_idx(s, buf, sizeof(buf), args[i]));
+            }
+            for(i = 0; i < (nb_iargs - 1); i++) {
+                fprintf(outfile, ",");
+                if (args[nb_oargs + i] == TCG_CALL_DUMMY_ARG) {
+                    fprintf(outfile, "<dummy>");
+                } else {
+                    fprintf(outfile, "%s",
+                            tcg_get_arg_str_idx(s, buf, sizeof(buf), args[nb_oargs + i]));
+                }
+            }
+        } else if (c == INDEX_op_movi_i32
+#if TCG_TARGET_REG_BITS == 64
+                   || c == INDEX_op_movi_i64
+#endif
+                   ) {
+            tcg_target_ulong val;
+            TCGHelperInfo *th;
+
+            nb_oargs = def->nb_oargs;
+            nb_iargs = def->nb_iargs;
+            nb_cargs = def->nb_cargs;
+            fprintf(outfile, " %s %s,$", def->name,
+                    tcg_get_arg_str_idx(s, buf, sizeof(buf), args[0]));
+            val = args[1];
+            th = tcg_find_helper(s, val);
+            if (th) {
+                fprintf(outfile, "%s", th->name);
+            } else {
+                if (c == INDEX_op_movi_i32)
+                    fprintf(outfile, "0x%x", (uint32_t)val);
+                else
+                    fprintf(outfile, "0x%" PRIx64 , (uint64_t)val);
+            }
+        } else {
+            fprintf(outfile, " %s ", def->name);
+            if (c == INDEX_op_nopn) {
+                /* variable number of arguments */
+                nb_cargs = *args;
+                nb_oargs = 0;
+                nb_iargs = 0;
+            } else {
+                nb_oargs = def->nb_oargs;
+                nb_iargs = def->nb_iargs;
+                nb_cargs = def->nb_cargs;
+            }
+
+            k = 0;
+            for(i = 0; i < nb_oargs; i++) {
+                if (k != 0)
+                    fprintf(outfile, ",");
+                fprintf(outfile, "%s",
+                        tcg_get_arg_str_idx(s, buf, sizeof(buf), args[k++]));
+            }
+            for(i = 0; i < nb_iargs; i++) {
+                if (k != 0)
+                    fprintf(outfile, ",");
+                fprintf(outfile, "%s",
+                        tcg_get_arg_str_idx(s, buf, sizeof(buf), args[k++]));
+            }
+            switch (c) {
+            case INDEX_op_brcond_i32:
+#if TCG_TARGET_REG_BITS == 32
+            case INDEX_op_brcond2_i32:
+#elif TCG_TARGET_REG_BITS == 64
+            case INDEX_op_brcond_i64:
+#endif
+            case INDEX_op_setcond_i32:
+#if TCG_TARGET_REG_BITS == 32
+            case INDEX_op_setcond2_i32:
+#elif TCG_TARGET_REG_BITS == 64
+            case INDEX_op_setcond_i64:
+#endif
+                if (args[k] < ARRAY_SIZE(cond_name) && cond_name[args[k]])
+                    fprintf(outfile, ",%s", cond_name[args[k++]]);
+                else
+                    fprintf(outfile, ",$0x%" TCG_PRIlx, args[k++]);
+                i = 1;
+                break;
+            default:
+                i = 0;
+                break;
+            }
+            for(; i < nb_cargs; i++) {
+                if (k != 0)
+                    fprintf(outfile, ",");
+                arg = args[k++];
+                fprintf(outfile, "$0x%" TCG_PRIlx, arg);
+            }
+        }
+        fprintf(outfile, "\n");
+        args += nb_iargs + nb_oargs + nb_cargs;
+    }
+}
+
+/* we give more priority to constraints with less registers */
+static int get_constraint_priority(const TCGOpDef *def, int k)
+{
+    const TCGArgConstraint *arg_ct;
+
+    int i, n;
+    arg_ct = &def->args_ct[k];
+    if (arg_ct->ct & TCG_CT_ALIAS) {
+        /* an alias is equivalent to a single register */
+        n = 1;
+    } else {
+        if (!(arg_ct->ct & TCG_CT_REG))
+            return 0;
+        n = 0;
+        for(i = 0; i < TCG_TARGET_NB_REGS; i++) {
+            if (tcg_regset_test_reg(arg_ct->u.regs, i))
+                n++;
+        }
+    }
+    return TCG_TARGET_NB_REGS - n + 1;
+}
+
+/* sort from highest priority to lowest */
+static void sort_constraints(TCGOpDef *def, int start, int n)
+{
+    int i, j, p1, p2, tmp;
+
+    for(i = 0; i < n; i++)
+        def->sorted_args[start + i] = start + i;
+    if (n <= 1)
+        return;
+    for(i = 0; i < n - 1; i++) {
+        for(j = i + 1; j < n; j++) {
+            p1 = get_constraint_priority(def, def->sorted_args[start + i]);
+            p2 = get_constraint_priority(def, def->sorted_args[start + j]);
+            if (p1 < p2) {
+                tmp = def->sorted_args[start + i];
+                def->sorted_args[start + i] = def->sorted_args[start + j];
+                def->sorted_args[start + j] = tmp;
+            }
+        }
+    }
+}
+
+void tcg_add_target_add_op_defs(const TCGTargetOpDef *tdefs)
+{
+    TCGOpcode op;
+    TCGOpDef *def;
+    const char *ct_str;
+    int i, nb_args;
+
+    for(;;) {
+        if (tdefs->op == (TCGOpcode)-1)
+            break;
+        op = tdefs->op;
+        assert((unsigned)op < (unsigned)NB_OPS);
+        def = &tcg_op_defs[op];
+#if defined(CONFIG_DEBUG_TCG)
+        /* Duplicate entry in op definitions? */
+        assert(!def->used);
+        def->used = 1;
+#endif
+        nb_args = def->nb_iargs + def->nb_oargs;
+        for(i = 0; i < nb_args; i++) {
+            ct_str = tdefs->args_ct_str[i];
+            /* Incomplete TCGTargetOpDef entry? */
+            assert(ct_str != NULL);
+            tcg_regset_clear(def->args_ct[i].u.regs);
+            def->args_ct[i].ct = 0;
+            if (ct_str[0] >= '0' && ct_str[0] <= '9') {
+                int oarg;
+                oarg = ct_str[0] - '0';
+                assert(oarg < def->nb_oargs);
+                assert(def->args_ct[oarg].ct & TCG_CT_REG);
+                /* TCG_CT_ALIAS is for the output arguments. The input
+                   argument is tagged with TCG_CT_IALIAS. */
+                def->args_ct[i] = def->args_ct[oarg];
+                def->args_ct[oarg].ct = TCG_CT_ALIAS;
+                def->args_ct[oarg].alias_index = i;
+                def->args_ct[i].ct |= TCG_CT_IALIAS;
+                def->args_ct[i].alias_index = oarg;
+            } else {
+                for(;;) {
+                    if (*ct_str == '\0')
+                        break;
+                    switch(*ct_str) {
+                    case 'i':
+                        def->args_ct[i].ct |= TCG_CT_CONST;
+                        ct_str++;
+                        break;
+                    default:
+                        if (target_parse_constraint(&def->args_ct[i], &ct_str) < 0) {
+                            fprintf(stderr, "Invalid constraint '%s' for arg %d of operation '%s'\n",
+                                    ct_str, i, def->name);
+#ifndef VBOX
+                            exit(1);
+#else
+                            tcg_exit(1);
+#endif
+                        }
+                    }
+                }
+            }
+        }
+
+        /* TCGTargetOpDef entry with too much information? */
+        assert(i == TCG_MAX_OP_ARGS || tdefs->args_ct_str[i] == NULL);
+
+        /* sort the constraints (XXX: this is just an heuristic) */
+        sort_constraints(def, 0, def->nb_oargs);
+        sort_constraints(def, def->nb_oargs, def->nb_iargs);
+
+#if 0
+        {
+            int i;
+
+            printf("%s: sorted=", def->name);
+            for(i = 0; i < def->nb_oargs + def->nb_iargs; i++)
+                printf(" %d", def->sorted_args[i]);
+            printf("\n");
+        }
+#endif
+        tdefs++;
+    }
+
+#if defined(CONFIG_DEBUG_TCG)
+    i = 0;
+    for (op = 0; op < ARRAY_SIZE(tcg_op_defs); op++) {
+        if (op < INDEX_op_call || op == INDEX_op_debug_insn_start) {
+            /* Wrong entry in op definitions? */
+            if (tcg_op_defs[op].used) {
+                fprintf(stderr, "Invalid op definition for %s\n",
+                        tcg_op_defs[op].name);
+                i = 1;
+            }
+        } else {
+            /* Missing entry in op definitions? */
+            if (!tcg_op_defs[op].used) {
+                fprintf(stderr, "Missing op definition for %s\n",
+                        tcg_op_defs[op].name);
+                i = 1;
+            }
+        }
+    }
+    if (i == 1) {
+        tcg_abort();
+    }
+#endif
+}
+
+#ifdef USE_LIVENESS_ANALYSIS
+
+/* set a nop for an operation using 'nb_args' */
+static inline void tcg_set_nop(TCGContext *s, uint16_t *opc_ptr,
+                               TCGArg *args, int nb_args)
+{
+    if (nb_args == 0) {
+        *opc_ptr = INDEX_op_nop;
+    } else {
+        *opc_ptr = INDEX_op_nopn;
+        args[0] = nb_args;
+        args[nb_args - 1] = nb_args;
+    }
+}
+
+/* liveness analysis: end of function: globals are live, temps are
+   dead. */
+/* XXX: at this stage, not used as there would be little gains because
+   most TBs end with a conditional jump. */
+static inline void tcg_la_func_end(TCGContext *s, uint8_t *dead_temps)
+{
+    memset(dead_temps, 0, s->nb_globals);
+    memset(dead_temps + s->nb_globals, 1, s->nb_temps - s->nb_globals);
+}
+
+/* liveness analysis: end of basic block: globals are live, temps are
+   dead, local temps are live. */
+static inline void tcg_la_bb_end(TCGContext *s, uint8_t *dead_temps)
+{
+    int i;
+    TCGTemp *ts;
+
+    memset(dead_temps, 0, s->nb_globals);
+    ts = &s->temps[s->nb_globals];
+    for(i = s->nb_globals; i < s->nb_temps; i++) {
+        if (ts->temp_local)
+            dead_temps[i] = 0;
+        else
+            dead_temps[i] = 1;
+        ts++;
+    }
+}
+
+/* Liveness analysis : update the opc_dead_iargs array to tell if a
+   given input arguments is dead. Instructions updating dead
+   temporaries are removed. */
+static void tcg_liveness_analysis(TCGContext *s)
+{
+    int i, op_index, nb_args, nb_iargs, nb_oargs, arg, nb_ops;
+    TCGOpcode op;
+    TCGArg *args;
+    const TCGOpDef *def;
+    uint8_t *dead_temps;
+    unsigned int dead_iargs;
+
+    gen_opc_ptr++; /* skip end */
+
+    nb_ops = gen_opc_ptr - gen_opc_buf;
+
+    s->op_dead_iargs = tcg_malloc(nb_ops * sizeof(uint16_t));
+
+    dead_temps = tcg_malloc(s->nb_temps);
+    memset(dead_temps, 1, s->nb_temps);
+
+    args = gen_opparam_ptr;
+    op_index = nb_ops - 1;
+    while (op_index >= 0) {
+        op = gen_opc_buf[op_index];
+        def = &tcg_op_defs[op];
+        switch(op) {
+        case INDEX_op_call:
+            {
+                int call_flags;
+
+                nb_args = args[-1];
+                args -= nb_args;
+                nb_iargs = args[0] & 0xffff;
+                nb_oargs = args[0] >> 16;
+                args++;
+                call_flags = args[nb_oargs + nb_iargs];
+
+                /* pure functions can be removed if their result is not
+                   used */
+                if (call_flags & TCG_CALL_PURE) {
+                    for(i = 0; i < nb_oargs; i++) {
+                        arg = args[i];
+                        if (!dead_temps[arg])
+                            goto do_not_remove_call;
+                    }
+                    tcg_set_nop(s, gen_opc_buf + op_index,
+                                args - 1, nb_args);
+                } else {
+                do_not_remove_call:
+
+                    /* output args are dead */
+                    for(i = 0; i < nb_oargs; i++) {
+                        arg = args[i];
+                        dead_temps[arg] = 1;
+                    }
+
+                    if (!(call_flags & TCG_CALL_CONST)) {
+                        /* globals are live (they may be used by the call) */
+                        memset(dead_temps, 0, s->nb_globals);
+                    }
+
+                    /* input args are live */
+                    dead_iargs = 0;
+                    for(i = 0; i < nb_iargs; i++) {
+                        arg = args[i + nb_oargs];
+                        if (arg != TCG_CALL_DUMMY_ARG) {
+                            if (dead_temps[arg]) {
+                                dead_iargs |= (1 << i);
+                            }
+                            dead_temps[arg] = 0;
+                        }
+                    }
+                    s->op_dead_iargs[op_index] = dead_iargs;
+                }
+                args--;
+            }
+            break;
+        case INDEX_op_set_label:
+            args--;
+            /* mark end of basic block */
+            tcg_la_bb_end(s, dead_temps);
+            break;
+        case INDEX_op_debug_insn_start:
+            args -= def->nb_args;
+            break;
+        case INDEX_op_nopn:
+            nb_args = args[-1];
+            args -= nb_args;
+            break;
+        case INDEX_op_discard:
+            args--;
+            /* mark the temporary as dead */
+            dead_temps[args[0]] = 1;
+            break;
+        case INDEX_op_end:
+            break;
+            /* XXX: optimize by hardcoding common cases (e.g. triadic ops) */
+        default:
+            args -= def->nb_args;
+            nb_iargs = def->nb_iargs;
+            nb_oargs = def->nb_oargs;
+
+            /* Test if the operation can be removed because all
+               its outputs are dead. We assume that nb_oargs == 0
+               implies side effects */
+            if (!(def->flags & TCG_OPF_SIDE_EFFECTS) && nb_oargs != 0) {
+                for(i = 0; i < nb_oargs; i++) {
+                    arg = args[i];
+                    if (!dead_temps[arg])
+                        goto do_not_remove;
+                }
+                tcg_set_nop(s, gen_opc_buf + op_index, args, def->nb_args);
+#ifdef CONFIG_PROFILER
+                s->del_op_count++;
+#endif
+            } else {
+            do_not_remove:
+
+                /* output args are dead */
+                for(i = 0; i < nb_oargs; i++) {
+                    arg = args[i];
+                    dead_temps[arg] = 1;
+                }
+
+                /* if end of basic block, update */
+                if (def->flags & TCG_OPF_BB_END) {
+                    tcg_la_bb_end(s, dead_temps);
+                } else if (def->flags & TCG_OPF_CALL_CLOBBER) {
+                    /* globals are live */
+                    memset(dead_temps, 0, s->nb_globals);
+                }
+
+                /* input args are live */
+                dead_iargs = 0;
+                for(i = 0; i < nb_iargs; i++) {
+                    arg = args[i + nb_oargs];
+                    if (dead_temps[arg]) {
+                        dead_iargs |= (1 << i);
+                    }
+                    dead_temps[arg] = 0;
+                }
+                s->op_dead_iargs[op_index] = dead_iargs;
+            }
+            break;
+        }
+        op_index--;
+    }
+
+    if (args != gen_opparam_buf)
+        tcg_abort();
+}
+#else
+/* dummy liveness analysis */
+static void tcg_liveness_analysis(TCGContext *s)
+{
+    int nb_ops;
+    nb_ops = gen_opc_ptr - gen_opc_buf;
+
+    s->op_dead_iargs = tcg_malloc(nb_ops * sizeof(uint16_t));
+    memset(s->op_dead_iargs, 0, nb_ops * sizeof(uint16_t));
+}
+#endif
+
+#ifndef NDEBUG
+static void dump_regs(TCGContext *s)
+{
+    TCGTemp *ts;
+    int i;
+    char buf[64];
+
+    for(i = 0; i < s->nb_temps; i++) {
+        ts = &s->temps[i];
+        printf("  %10s: ", tcg_get_arg_str_idx(s, buf, sizeof(buf), i));
+        switch(ts->val_type) {
+        case TEMP_VAL_REG:
+            printf("%s", tcg_target_reg_names[ts->reg]);
+            break;
+        case TEMP_VAL_MEM:
+            printf("%d(%s)", (int)ts->mem_offset, tcg_target_reg_names[ts->mem_reg]);
+            break;
+        case TEMP_VAL_CONST:
+            printf("$0x%" TCG_PRIlx, ts->val);
+            break;
+        case TEMP_VAL_DEAD:
+            printf("D");
+            break;
+        default:
+            printf("???");
+            break;
+        }
+        printf("\n");
+    }
+
+    for(i = 0; i < TCG_TARGET_NB_REGS; i++) {
+        if (s->reg_to_temp[i] >= 0) {
+            printf("%s: %s\n",
+                   tcg_target_reg_names[i],
+                   tcg_get_arg_str_idx(s, buf, sizeof(buf), s->reg_to_temp[i]));
+        }
+    }
+}
+
+static void check_regs(TCGContext *s)
+{
+    int reg, k;
+    TCGTemp *ts;
+    char buf[64];
+
+    for(reg = 0; reg < TCG_TARGET_NB_REGS; reg++) {
+        k = s->reg_to_temp[reg];
+        if (k >= 0) {
+            ts = &s->temps[k];
+            if (ts->val_type != TEMP_VAL_REG ||
+                ts->reg != reg) {
+                printf("Inconsistency for register %s:\n",
+                       tcg_target_reg_names[reg]);
+                goto fail;
+            }
+        }
+    }
+    for(k = 0; k < s->nb_temps; k++) {
+        ts = &s->temps[k];
+        if (ts->val_type == TEMP_VAL_REG &&
+            !ts->fixed_reg &&
+            s->reg_to_temp[ts->reg] != k) {
+                printf("Inconsistency for temp %s:\n",
+                       tcg_get_arg_str_idx(s, buf, sizeof(buf), k));
+        fail:
+                printf("reg state:\n");
+                dump_regs(s);
+                tcg_abort();
+        }
+    }
+}
+#endif
+
+static void temp_allocate_frame(TCGContext *s, int temp)
+{
+    TCGTemp *ts;
+    ts = &s->temps[temp];
+    s->current_frame_offset = (s->current_frame_offset + sizeof(tcg_target_long) - 1) & ~(sizeof(tcg_target_long) - 1);
+#ifndef VBOX
+    if (s->current_frame_offset + sizeof(tcg_target_long) > s->frame_end)
+#else
+    if ((tcg_target_long)s->current_frame_offset + sizeof(tcg_target_long) > s->frame_end)
+#endif
+        tcg_abort();
+    ts->mem_offset = s->current_frame_offset;
+    ts->mem_reg = s->frame_reg;
+    ts->mem_allocated = 1;
+    s->current_frame_offset += sizeof(tcg_target_long);
+}
+
+/* free register 'reg' by spilling the corresponding temporary if necessary */
+static void tcg_reg_free(TCGContext *s, int reg)
+{
+    TCGTemp *ts;
+    int temp;
+
+    temp = s->reg_to_temp[reg];
+    if (temp != -1) {
+        ts = &s->temps[temp];
+        assert(ts->val_type == TEMP_VAL_REG);
+        if (!ts->mem_coherent) {
+            if (!ts->mem_allocated)
+                temp_allocate_frame(s, temp);
+            tcg_out_st(s, ts->type, reg, ts->mem_reg, ts->mem_offset);
+        }
+        ts->val_type = TEMP_VAL_MEM;
+        s->reg_to_temp[reg] = -1;
+    }
+}
+
+/* Allocate a register belonging to reg1 & ~reg2 */
+static int tcg_reg_alloc(TCGContext *s, TCGRegSet reg1, TCGRegSet reg2)
+{
+    int i, reg;
+    TCGRegSet reg_ct;
+
+    tcg_regset_andnot(reg_ct, reg1, reg2);
+
+    /* first try free registers */
+    for(i = 0; i < ARRAY_SIZE(tcg_target_reg_alloc_order); i++) {
+        reg = tcg_target_reg_alloc_order[i];
+        if (tcg_regset_test_reg(reg_ct, reg) && s->reg_to_temp[reg] == -1)
+            return reg;
+    }
+
+    /* XXX: do better spill choice */
+    for(i = 0; i < ARRAY_SIZE(tcg_target_reg_alloc_order); i++) {
+        reg = tcg_target_reg_alloc_order[i];
+        if (tcg_regset_test_reg(reg_ct, reg)) {
+            tcg_reg_free(s, reg);
+            return reg;
+        }
+    }
+
+    tcg_abort();
+}
+
+/* save a temporary to memory. 'allocated_regs' is used in case a
+   temporary registers needs to be allocated to store a constant. */
+static void temp_save(TCGContext *s, int temp, TCGRegSet allocated_regs)
+{
+    TCGTemp *ts;
+    int reg;
+
+    ts = &s->temps[temp];
+    if (!ts->fixed_reg) {
+        switch(ts->val_type) {
+        case TEMP_VAL_REG:
+            tcg_reg_free(s, ts->reg);
+            break;
+        case TEMP_VAL_DEAD:
+            ts->val_type = TEMP_VAL_MEM;
+            break;
+        case TEMP_VAL_CONST:
+            reg = tcg_reg_alloc(s, tcg_target_available_regs[ts->type],
+                                allocated_regs);
+            if (!ts->mem_allocated)
+                temp_allocate_frame(s, temp);
+            tcg_out_movi(s, ts->type, reg, ts->val);
+            tcg_out_st(s, ts->type, reg, ts->mem_reg, ts->mem_offset);
+            ts->val_type = TEMP_VAL_MEM;
+            break;
+        case TEMP_VAL_MEM:
+            break;
+        default:
+            tcg_abort();
+        }
+    }
+}
+
+/* save globals to their cannonical location and assume they can be
+   modified be the following code. 'allocated_regs' is used in case a
+   temporary registers needs to be allocated to store a constant. */
+static void save_globals(TCGContext *s, TCGRegSet allocated_regs)
+{
+    int i;
+
+    for(i = 0; i < s->nb_globals; i++) {
+        temp_save(s, i, allocated_regs);
+    }
+}
+
+/* at the end of a basic block, we assume all temporaries are dead and
+   all globals are stored at their canonical location. */
+static void tcg_reg_alloc_bb_end(TCGContext *s, TCGRegSet allocated_regs)
+{
+    TCGTemp *ts;
+    int i;
+
+    for(i = s->nb_globals; i < s->nb_temps; i++) {
+        ts = &s->temps[i];
+        if (ts->temp_local) {
+            temp_save(s, i, allocated_regs);
+        } else {
+            if (ts->val_type == TEMP_VAL_REG) {
+                s->reg_to_temp[ts->reg] = -1;
+            }
+            ts->val_type = TEMP_VAL_DEAD;
+        }
+    }
+
+    save_globals(s, allocated_regs);
+}
+
+#define IS_DEAD_IARG(n) ((dead_iargs >> (n)) & 1)
+
+static void tcg_reg_alloc_movi(TCGContext *s, const TCGArg *args)
+{
+    TCGTemp *ots;
+    tcg_target_ulong val;
+
+    ots = &s->temps[args[0]];
+    val = args[1];
+
+    if (ots->fixed_reg) {
+        /* for fixed registers, we do not do any constant
+           propagation */
+        tcg_out_movi(s, ots->type, ots->reg, val);
+    } else {
+        /* The movi is not explicitly generated here */
+        if (ots->val_type == TEMP_VAL_REG)
+            s->reg_to_temp[ots->reg] = -1;
+        ots->val_type = TEMP_VAL_CONST;
+        ots->val = val;
+    }
+}
+
+static void tcg_reg_alloc_mov(TCGContext *s, const TCGOpDef *def,
+                              const TCGArg *args,
+                              unsigned int dead_iargs)
+{
+    TCGTemp *ts, *ots;
+    int reg;
+    const TCGArgConstraint *arg_ct;
+
+    ots = &s->temps[args[0]];
+    ts = &s->temps[args[1]];
+    arg_ct = &def->args_ct[0];
+
+    /* XXX: always mark arg dead if IS_DEAD_IARG(0) */
+    if (ts->val_type == TEMP_VAL_REG) {
+        if (IS_DEAD_IARG(0) && !ts->fixed_reg && !ots->fixed_reg) {
+            /* the mov can be suppressed */
+            if (ots->val_type == TEMP_VAL_REG)
+                s->reg_to_temp[ots->reg] = -1;
+            reg = ts->reg;
+            s->reg_to_temp[reg] = -1;
+            ts->val_type = TEMP_VAL_DEAD;
+        } else {
+            if (ots->val_type == TEMP_VAL_REG) {
+                reg = ots->reg;
+            } else {
+                reg = tcg_reg_alloc(s, arg_ct->u.regs, s->reserved_regs);
+            }
+            if (ts->reg != reg) {
+                tcg_out_mov(s, ots->type, reg, ts->reg);
+            }
+        }
+    } else if (ts->val_type == TEMP_VAL_MEM) {
+        if (ots->val_type == TEMP_VAL_REG) {
+            reg = ots->reg;
+        } else {
+            reg = tcg_reg_alloc(s, arg_ct->u.regs, s->reserved_regs);
+        }
+        tcg_out_ld(s, ts->type, reg, ts->mem_reg, ts->mem_offset);
+    } else if (ts->val_type == TEMP_VAL_CONST) {
+        if (ots->fixed_reg) {
+            reg = ots->reg;
+            tcg_out_movi(s, ots->type, reg, ts->val);
+        } else {
+            /* propagate constant */
+            if (ots->val_type == TEMP_VAL_REG)
+                s->reg_to_temp[ots->reg] = -1;
+            ots->val_type = TEMP_VAL_CONST;
+            ots->val = ts->val;
+            return;
+        }
+    } else {
+        tcg_abort();
+    }
+    s->reg_to_temp[reg] = args[0];
+    ots->reg = reg;
+    ots->val_type = TEMP_VAL_REG;
+    ots->mem_coherent = 0;
+}
+
+static void tcg_reg_alloc_op(TCGContext *s,
+                             const TCGOpDef *def, TCGOpcode opc,
+                             const TCGArg *args,
+                             unsigned int dead_iargs)
+{
+    TCGRegSet allocated_regs;
+    int i, k, nb_iargs, nb_oargs, reg;
+    TCGArg arg;
+    const TCGArgConstraint *arg_ct;
+    TCGTemp *ts;
+    TCGArg new_args[TCG_MAX_OP_ARGS];
+    int const_args[TCG_MAX_OP_ARGS];
+
+    nb_oargs = def->nb_oargs;
+    nb_iargs = def->nb_iargs;
+
+    /* copy constants */
+    memcpy(new_args + nb_oargs + nb_iargs,
+           args + nb_oargs + nb_iargs,
+           sizeof(TCGArg) * def->nb_cargs);
+
+    /* satisfy input constraints */
+    tcg_regset_set(allocated_regs, s->reserved_regs);
+    for(k = 0; k < nb_iargs; k++) {
+        i = def->sorted_args[nb_oargs + k];
+        arg = args[i];
+        arg_ct = &def->args_ct[i];
+        ts = &s->temps[arg];
+        if (ts->val_type == TEMP_VAL_MEM) {
+            reg = tcg_reg_alloc(s, arg_ct->u.regs, allocated_regs);
+            tcg_out_ld(s, ts->type, reg, ts->mem_reg, ts->mem_offset);
+            ts->val_type = TEMP_VAL_REG;
+            ts->reg = reg;
+            ts->mem_coherent = 1;
+            s->reg_to_temp[reg] = arg;
+        } else if (ts->val_type == TEMP_VAL_CONST) {
+            if (tcg_target_const_match(ts->val, arg_ct)) {
+                /* constant is OK for instruction */
+                const_args[i] = 1;
+                new_args[i] = ts->val;
+                goto iarg_end;
+            } else {
+                /* need to move to a register */
+                reg = tcg_reg_alloc(s, arg_ct->u.regs, allocated_regs);
+                tcg_out_movi(s, ts->type, reg, ts->val);
+                ts->val_type = TEMP_VAL_REG;
+                ts->reg = reg;
+                ts->mem_coherent = 0;
+                s->reg_to_temp[reg] = arg;
+            }
+        }
+        assert(ts->val_type == TEMP_VAL_REG);
+        if (arg_ct->ct & TCG_CT_IALIAS) {
+            if (ts->fixed_reg) {
+                /* if fixed register, we must allocate a new register
+                   if the alias is not the same register */
+                if (arg != args[arg_ct->alias_index])
+                    goto allocate_in_reg;
+            } else {
+                /* if the input is aliased to an output and if it is
+                   not dead after the instruction, we must allocate
+                   a new register and move it */
+                if (!IS_DEAD_IARG(i - nb_oargs))
+                    goto allocate_in_reg;
+            }
+        }
+        reg = ts->reg;
+        if (tcg_regset_test_reg(arg_ct->u.regs, reg)) {
+            /* nothing to do : the constraint is satisfied */
+        } else {
+        allocate_in_reg:
+            /* allocate a new register matching the constraint
+               and move the temporary register into it */
+            reg = tcg_reg_alloc(s, arg_ct->u.regs, allocated_regs);
+            tcg_out_mov(s, ts->type, reg, ts->reg);
+        }
+        new_args[i] = reg;
+        const_args[i] = 0;
+        tcg_regset_set_reg(allocated_regs, reg);
+    iarg_end: ;
+    }
+
+    if (def->flags & TCG_OPF_BB_END) {
+        tcg_reg_alloc_bb_end(s, allocated_regs);
+    } else {
+        /* mark dead temporaries and free the associated registers */
+        for(i = 0; i < nb_iargs; i++) {
+            arg = args[nb_oargs + i];
+            if (IS_DEAD_IARG(i)) {
+                ts = &s->temps[arg];
+                if (!ts->fixed_reg) {
+                    if (ts->val_type == TEMP_VAL_REG)
+                        s->reg_to_temp[ts->reg] = -1;
+                    ts->val_type = TEMP_VAL_DEAD;
+                }
+            }
+        }
+
+        if (def->flags & TCG_OPF_CALL_CLOBBER) {
+            /* XXX: permit generic clobber register list ? */
+            for(reg = 0; reg < TCG_TARGET_NB_REGS; reg++) {
+                if (tcg_regset_test_reg(tcg_target_call_clobber_regs, reg)) {
+                    tcg_reg_free(s, reg);
+                }
+            }
+            /* XXX: for load/store we could do that only for the slow path
+               (i.e. when a memory callback is called) */
+
+            /* store globals and free associated registers (we assume the insn
+               can modify any global. */
+            save_globals(s, allocated_regs);
+        }
+
+        /* satisfy the output constraints */
+        tcg_regset_set(allocated_regs, s->reserved_regs);
+        for(k = 0; k < nb_oargs; k++) {
+            i = def->sorted_args[k];
+            arg = args[i];
+            arg_ct = &def->args_ct[i];
+            ts = &s->temps[arg];
+            if (arg_ct->ct & TCG_CT_ALIAS) {
+                reg = new_args[arg_ct->alias_index];
+            } else {
+                /* if fixed register, we try to use it */
+                reg = ts->reg;
+                if (ts->fixed_reg &&
+                    tcg_regset_test_reg(arg_ct->u.regs, reg)) {
+                    goto oarg_end;
+                }
+                reg = tcg_reg_alloc(s, arg_ct->u.regs, allocated_regs);
+            }
+            tcg_regset_set_reg(allocated_regs, reg);
+            /* if a fixed register is used, then a move will be done afterwards */
+            if (!ts->fixed_reg) {
+                if (ts->val_type == TEMP_VAL_REG)
+                    s->reg_to_temp[ts->reg] = -1;
+                ts->val_type = TEMP_VAL_REG;
+                ts->reg = reg;
+                /* temp value is modified, so the value kept in memory is
+                   potentially not the same */
+                ts->mem_coherent = 0;
+                s->reg_to_temp[reg] = arg;
+            }
+        oarg_end:
+            new_args[i] = reg;
+        }
+    }
+
+    /* emit instruction */
+    tcg_out_op(s, opc, new_args, const_args);
+
+    /* move the outputs in the correct register if needed */
+    for(i = 0; i < nb_oargs; i++) {
+        ts = &s->temps[args[i]];
+        reg = new_args[i];
+        if (ts->fixed_reg && ts->reg != reg) {
+            tcg_out_mov(s, ts->type, ts->reg, reg);
+        }
+    }
+}
+
+#ifdef TCG_TARGET_STACK_GROWSUP
+#define STACK_DIR(x) (-(x))
+#else
+#define STACK_DIR(x) (x)
+#endif
+
+static int tcg_reg_alloc_call(TCGContext *s, const TCGOpDef *def,
+                              TCGOpcode opc, const TCGArg *args,
+                              unsigned int dead_iargs)
+{
+    int nb_iargs, nb_oargs, flags, nb_regs, i, reg, nb_params;
+    TCGArg arg, func_arg;
+    TCGTemp *ts;
+    tcg_target_long stack_offset, call_stack_size, func_addr;
+    int const_func_arg, allocate_args;
+    TCGRegSet allocated_regs;
+    const TCGArgConstraint *arg_ct;
+
+    arg = *args++;
+
+    nb_oargs = arg >> 16;
+    nb_iargs = arg & 0xffff;
+    nb_params = nb_iargs - 1;
+
+    flags = args[nb_oargs + nb_iargs];
+
+    nb_regs = tcg_target_get_call_iarg_regs_count(flags);
+    if (nb_regs > nb_params)
+        nb_regs = nb_params;
+
+    /* assign stack slots first */
+    /* XXX: preallocate call stack */
+    call_stack_size = (nb_params - nb_regs) * sizeof(tcg_target_long);
+    call_stack_size = (call_stack_size + TCG_TARGET_STACK_ALIGN - 1) &
+        ~(TCG_TARGET_STACK_ALIGN - 1);
+    allocate_args = (call_stack_size > TCG_STATIC_CALL_ARGS_SIZE);
+    if (allocate_args) {
+        tcg_out_addi(s, TCG_REG_CALL_STACK, -STACK_DIR(call_stack_size));
+    }
+
+    stack_offset = TCG_TARGET_CALL_STACK_OFFSET;
+    for(i = nb_regs; i < nb_params; i++) {
+        arg = args[nb_oargs + i];
+#ifdef TCG_TARGET_STACK_GROWSUP
+        stack_offset -= sizeof(tcg_target_long);
+#endif
+        if (arg != TCG_CALL_DUMMY_ARG) {
+            ts = &s->temps[arg];
+            if (ts->val_type == TEMP_VAL_REG) {
+                tcg_out_st(s, ts->type, ts->reg, TCG_REG_CALL_STACK, stack_offset);
+            } else if (ts->val_type == TEMP_VAL_MEM) {
+                reg = tcg_reg_alloc(s, tcg_target_available_regs[ts->type],
+                                    s->reserved_regs);
+                /* XXX: not correct if reading values from the stack */
+                tcg_out_ld(s, ts->type, reg, ts->mem_reg, ts->mem_offset);
+                tcg_out_st(s, ts->type, reg, TCG_REG_CALL_STACK, stack_offset);
+            } else if (ts->val_type == TEMP_VAL_CONST) {
+                reg = tcg_reg_alloc(s, tcg_target_available_regs[ts->type],
+                                    s->reserved_regs);
+                /* XXX: sign extend may be needed on some targets */
+                tcg_out_movi(s, ts->type, reg, ts->val);
+                tcg_out_st(s, ts->type, reg, TCG_REG_CALL_STACK, stack_offset);
+            } else {
+                tcg_abort();
+            }
+        }
+#ifndef TCG_TARGET_STACK_GROWSUP
+        stack_offset += sizeof(tcg_target_long);
+#endif
+    }
+
+    /* assign input registers */
+    tcg_regset_set(allocated_regs, s->reserved_regs);
+    for(i = 0; i < nb_regs; i++) {
+        arg = args[nb_oargs + i];
+        if (arg != TCG_CALL_DUMMY_ARG) {
+            ts = &s->temps[arg];
+            reg = tcg_target_call_iarg_regs[i];
+            tcg_reg_free(s, reg);
+            if (ts->val_type == TEMP_VAL_REG) {
+                if (ts->reg != reg) {
+                    tcg_out_mov(s, ts->type, reg, ts->reg);
+                }
+            } else if (ts->val_type == TEMP_VAL_MEM) {
+                tcg_out_ld(s, ts->type, reg, ts->mem_reg, ts->mem_offset);
+            } else if (ts->val_type == TEMP_VAL_CONST) {
+                /* XXX: sign extend ? */
+                tcg_out_movi(s, ts->type, reg, ts->val);
+            } else {
+                tcg_abort();
+            }
+            tcg_regset_set_reg(allocated_regs, reg);
+        }
+    }
+
+    /* assign function address */
+    func_arg = args[nb_oargs + nb_iargs - 1];
+    arg_ct = &def->args_ct[0];
+    ts = &s->temps[func_arg];
+    func_addr = ts->val;
+    const_func_arg = 0;
+    if (ts->val_type == TEMP_VAL_MEM) {
+        reg = tcg_reg_alloc(s, arg_ct->u.regs, allocated_regs);
+        tcg_out_ld(s, ts->type, reg, ts->mem_reg, ts->mem_offset);
+        func_arg = reg;
+        tcg_regset_set_reg(allocated_regs, reg);
+    } else if (ts->val_type == TEMP_VAL_REG) {
+        reg = ts->reg;
+        if (!tcg_regset_test_reg(arg_ct->u.regs, reg)) {
+            reg = tcg_reg_alloc(s, arg_ct->u.regs, allocated_regs);
+            tcg_out_mov(s, ts->type, reg, ts->reg);
+        }
+        func_arg = reg;
+        tcg_regset_set_reg(allocated_regs, reg);
+    } else if (ts->val_type == TEMP_VAL_CONST) {
+        if (tcg_target_const_match(func_addr, arg_ct)) {
+            const_func_arg = 1;
+            func_arg = func_addr;
+        } else {
+            reg = tcg_reg_alloc(s, arg_ct->u.regs, allocated_regs);
+            tcg_out_movi(s, ts->type, reg, func_addr);
+            func_arg = reg;
+            tcg_regset_set_reg(allocated_regs, reg);
+        }
+    } else {
+        tcg_abort();
+    }
+
+
+    /* mark dead temporaries and free the associated registers */
+    for(i = 0; i < nb_iargs; i++) {
+        arg = args[nb_oargs + i];
+        if (IS_DEAD_IARG(i)) {
+            ts = &s->temps[arg];
+            if (!ts->fixed_reg) {
+                if (ts->val_type == TEMP_VAL_REG)
+                    s->reg_to_temp[ts->reg] = -1;
+                ts->val_type = TEMP_VAL_DEAD;
+            }
+        }
+    }
+
+    /* clobber call registers */
+    for(reg = 0; reg < TCG_TARGET_NB_REGS; reg++) {
+        if (tcg_regset_test_reg(tcg_target_call_clobber_regs, reg)) {
+            tcg_reg_free(s, reg);
+        }
+    }
+
+    /* store globals and free associated registers (we assume the call
+       can modify any global. */
+    if (!(flags & TCG_CALL_CONST)) {
+        save_globals(s, allocated_regs);
+    }
+
+    tcg_out_op(s, opc, &func_arg, &const_func_arg);
+
+    if (allocate_args) {
+        tcg_out_addi(s, TCG_REG_CALL_STACK, STACK_DIR(call_stack_size));
+    }
+
+    /* assign output registers and emit moves if needed */
+    for(i = 0; i < nb_oargs; i++) {
+        arg = args[i];
+        ts = &s->temps[arg];
+        reg = tcg_target_call_oarg_regs[i];
+        assert(s->reg_to_temp[reg] == -1);
+        if (ts->fixed_reg) {
+            if (ts->reg != reg) {
+                tcg_out_mov(s, ts->type, ts->reg, reg);
+            }
+        } else {
+            if (ts->val_type == TEMP_VAL_REG)
+                s->reg_to_temp[ts->reg] = -1;
+            ts->val_type = TEMP_VAL_REG;
+            ts->reg = reg;
+            ts->mem_coherent = 0;
+            s->reg_to_temp[reg] = arg;
+        }
+    }
+
+    return nb_iargs + nb_oargs + def->nb_cargs + 1;
+}
+
+#ifdef CONFIG_PROFILER
+
+static int64_t tcg_table_op_count[NB_OPS];
+
+static void dump_op_count(void)
+{
+    int i;
+    FILE *f;
+    f = fopen("/tmp/op.log", "w");
+    for(i = INDEX_op_end; i < NB_OPS; i++) {
+        fprintf(f, "%s %" PRId64 "\n", tcg_op_defs[i].name, tcg_table_op_count[i]);
+    }
+    fclose(f);
+}
+#endif
+
+
+static inline int tcg_gen_code_common(TCGContext *s, uint8_t *gen_code_buf,
+                                      intptr_t search_pc)
+{
+    TCGOpcode opc;
+    int op_index;
+    const TCGOpDef *def;
+    unsigned int dead_iargs;
+    const TCGArg *args;
+
+#ifdef DEBUG_DISAS
+    if (unlikely(qemu_loglevel_mask(CPU_LOG_TB_OP))) {
+        qemu_log("OP:\n");
+        tcg_dump_ops(s, logfile);
+        qemu_log("\n");
+    }
+#endif
+
+#ifdef CONFIG_PROFILER
+    s->la_time -= profile_getclock();
+#endif
+    tcg_liveness_analysis(s);
+#ifdef CONFIG_PROFILER
+    s->la_time += profile_getclock();
+#endif
+
+#ifdef DEBUG_DISAS
+# ifdef USE_LIVENESS_ANALYSIS /* vbox */
+    if (unlikely(qemu_loglevel_mask(CPU_LOG_TB_OP_OPT))) {
+        qemu_log("OP after liveness analysis:\n");
+        tcg_dump_ops(s, logfile);
+        qemu_log("\n");
+    }
+# endif /* USE_LIVENESS_ANALYSIS - vbox */
+#endif
+
+    tcg_reg_alloc_start(s);
+
+    s->code_buf = gen_code_buf;
+    s->code_ptr = gen_code_buf;
+
+    args = gen_opparam_buf;
+    op_index = 0;
+
+    for(;;) {
+        opc = gen_opc_buf[op_index];
+#ifdef CONFIG_PROFILER
+        tcg_table_op_count[opc]++;
+#endif
+        def = &tcg_op_defs[opc];
+#if 0
+        printf("%s: %d %d %d\n", def->name,
+               def->nb_oargs, def->nb_iargs, def->nb_cargs);
+        //        dump_regs(s);
+#endif
+        switch(opc) {
+        case INDEX_op_mov_i32:
+#if TCG_TARGET_REG_BITS == 64
+        case INDEX_op_mov_i64:
+#endif
+            dead_iargs = s->op_dead_iargs[op_index];
+            tcg_reg_alloc_mov(s, def, args, dead_iargs);
+            break;
+        case INDEX_op_movi_i32:
+#if TCG_TARGET_REG_BITS == 64
+        case INDEX_op_movi_i64:
+#endif
+            tcg_reg_alloc_movi(s, args);
+            break;
+        case INDEX_op_debug_insn_start:
+            /* debug instruction */
+            break;
+        case INDEX_op_nop:
+        case INDEX_op_nop1:
+        case INDEX_op_nop2:
+        case INDEX_op_nop3:
+            break;
+        case INDEX_op_nopn:
+            args += args[0];
+            goto next;
+        case INDEX_op_discard:
+            {
+                TCGTemp *ts;
+                ts = &s->temps[args[0]];
+                /* mark the temporary as dead */
+                if (!ts->fixed_reg) {
+                    if (ts->val_type == TEMP_VAL_REG)
+                        s->reg_to_temp[ts->reg] = -1;
+                    ts->val_type = TEMP_VAL_DEAD;
+                }
+            }
+            break;
+        case INDEX_op_set_label:
+            tcg_reg_alloc_bb_end(s, s->reserved_regs);
+            tcg_out_label(s, args[0], (intptr_t)s->code_ptr);
+            break;
+        case INDEX_op_call:
+            dead_iargs = s->op_dead_iargs[op_index];
+            args += tcg_reg_alloc_call(s, def, opc, args, dead_iargs);
+            goto next;
+        case INDEX_op_end:
+            goto the_end;
+        default:
+            /* Note: in order to speed up the code, it would be much
+               faster to have specialized register allocator functions for
+               some common argument patterns */
+            dead_iargs = s->op_dead_iargs[op_index];
+            tcg_reg_alloc_op(s, def, opc, args, dead_iargs);
+            break;
+        }
+        args += def->nb_args;
+    next:
+        if (search_pc >= 0 && search_pc < s->code_ptr - gen_code_buf) {
+            return op_index;
+        }
+        op_index++;
+#ifndef NDEBUG
+        check_regs(s);
+#endif
+    }
+ the_end:
+    return -1;
+}
+
+int tcg_gen_code(TCGContext *s, uint8_t *gen_code_buf)
+{
+#ifdef CONFIG_PROFILER
+    {
+        int n;
+        n = (gen_opc_ptr - gen_opc_buf);
+        s->op_count += n;
+        if (n > s->op_count_max)
+            s->op_count_max = n;
+
+        s->temp_count += s->nb_temps;
+        if (s->nb_temps > s->temp_count_max)
+            s->temp_count_max = s->nb_temps;
+    }
+#endif
+
+    tcg_gen_code_common(s, gen_code_buf, -1);
+
+    /* flush instruction cache */
+    flush_icache_range((uintptr_t)gen_code_buf,
+                       (uintptr_t)s->code_ptr);
+    return s->code_ptr -  gen_code_buf;
+}
+
+/* Return the index of the micro operation such as the pc after is <
+   offset bytes from the start of the TB.  The contents of gen_code_buf must
+   not be changed, though writing the same values is ok.
+   Return -1 if not found. */
+int tcg_gen_code_search_pc(TCGContext *s, uint8_t *gen_code_buf, intptr_t offset)
+{
+    return tcg_gen_code_common(s, gen_code_buf, offset);
+}
+
+#ifdef CONFIG_PROFILER
+void tcg_dump_info(FILE *f,
+                   int (*cpu_fprintf)(FILE *f, const char *fmt, ...))
+{
+    TCGContext *s = &tcg_ctx;
+    int64_t tot;
+
+    tot = s->interm_time + s->code_time;
+    cpu_fprintf(f, "JIT cycles          %" PRId64 " (%0.3f s at 2.4 GHz)\n",
+                tot, tot / 2.4e9);
+    cpu_fprintf(f, "translated TBs      %" PRId64 " (aborted=%" PRId64 " %0.1f%%)\n",
+                s->tb_count,
+                s->tb_count1 - s->tb_count,
+                s->tb_count1 ? (double)(s->tb_count1 - s->tb_count) / s->tb_count1 * 100.0 : 0);
+    cpu_fprintf(f, "avg ops/TB          %0.1f max=%d\n",
+                s->tb_count ? (double)s->op_count / s->tb_count : 0, s->op_count_max);
+    cpu_fprintf(f, "deleted ops/TB      %0.2f\n",
+                s->tb_count ?
+                (double)s->del_op_count / s->tb_count : 0);
+    cpu_fprintf(f, "avg temps/TB        %0.2f max=%d\n",
+                s->tb_count ?
+                (double)s->temp_count / s->tb_count : 0,
+                s->temp_count_max);
+
+    cpu_fprintf(f, "cycles/op           %0.1f\n",
+                s->op_count ? (double)tot / s->op_count : 0);
+    cpu_fprintf(f, "cycles/in byte      %0.1f\n",
+                s->code_in_len ? (double)tot / s->code_in_len : 0);
+    cpu_fprintf(f, "cycles/out byte     %0.1f\n",
+                s->code_out_len ? (double)tot / s->code_out_len : 0);
+    if (tot == 0)
+        tot = 1;
+    cpu_fprintf(f, "  gen_interm time   %0.1f%%\n",
+                (double)s->interm_time / tot * 100.0);
+    cpu_fprintf(f, "  gen_code time     %0.1f%%\n",
+                (double)s->code_time / tot * 100.0);
+    cpu_fprintf(f, "liveness/code time  %0.1f%%\n",
+                (double)s->la_time / (s->code_time ? s->code_time : 1) * 100.0);
+    cpu_fprintf(f, "cpu_restore count   %" PRId64 "\n",
+                s->restore_count);
+    cpu_fprintf(f, "  avg cycles        %0.1f\n",
+                s->restore_count ? (double)s->restore_time / s->restore_count : 0);
+
+    dump_op_count();
+}
+#else
+void tcg_dump_info(FILE *f,
+                   int (*cpu_fprintf)(FILE *f, const char *fmt, ...))
+{
+    cpu_fprintf(f, "[TCG profiler not compiled]\n");
+}
+#endif