GF_PREDICT_TAKEN = 1 << 15
};
+/* Currently, there's only one type of gimple debug stmt. Others are
+ envisioned, for example, to enable the generation of is_stmt notes
+ in line number information, to mark sequence points, etc. This
+ subcode is to be used to tell them apart. */
+enum gimple_debug_subcode {
+ GIMPLE_DEBUG_BIND = 0
+};
+
/* Masks for selecting a pass local flag (PLF) to work on. These
masks are used by gimple_set_plf and gimple_plf. */
enum plf_mask {
/* [ WORD 1-4 ] */
struct gimple_statement_base gsbase;
- /* Subcode: EH_FILTER_MUST_NOT_THROW. A boolean flag analogous to
- the tree counterpart. */
-
/* [ WORD 5 ]
Filter types. */
tree types;
};
+/* GIMPLE_EH_MUST_NOT_THROW */
+
+struct GTY(()) gimple_statement_eh_mnt {
+ /* [ WORD 1-4 ] */
+ struct gimple_statement_base gsbase;
+
+ /* [ WORD 5 ] Abort function decl. */
+ tree fndecl;
+};
+
/* GIMPLE_PHI */
struct GTY(()) gimple_statement_phi {
};
-/* GIMPLE_RESX */
+/* GIMPLE_RESX, GIMPLE_EH_DISPATCH */
-struct GTY(()) gimple_statement_resx {
+struct GTY(()) gimple_statement_eh_ctrl
+{
/* [ WORD 1-4 ] */
struct gimple_statement_base gsbase;
const char *string;
/* [ WORD 10 ]
- Number of inputs, outputs and clobbers. */
+ Number of inputs, outputs, clobbers, labels. */
unsigned char ni;
unsigned char no;
- unsigned short nc;
+ unsigned char nc;
+ unsigned char nl;
/* [ WORD 11 ]
Operand vector. NOTE! This must always be the last field
/* Index variable. */
tree index;
-
+
/* Initial value. */
tree initial;
/* Final value. */
tree final;
-
+
/* Increment. */
tree incr;
};
};
-/* GIMPLE_OMP_ATOMIC_LOAD.
+/* GIMPLE_OMP_ATOMIC_LOAD.
Note: This is based on gimple_statement_base, not g_s_omp, because g_s_omp
contains a sequence, which we don't need here. */
tree val;
};
+#define DEFGSSTRUCT(SYM, STRUCT, HAS_TREE_OP) SYM,
enum gimple_statement_structure_enum {
-#define DEFGSSTRUCT(SYM, STRING) SYM,
#include "gsstruct.def"
-#undef DEFGSSTRUCT
LAST_GSS_ENUM
};
+#undef DEFGSSTRUCT
/* Define the overall contents of a gimple tuple. It may be any of the
union GTY ((desc ("gimple_statement_structure (&%h)"))) gimple_statement_d {
struct gimple_statement_base GTY ((tag ("GSS_BASE"))) gsbase;
struct gimple_statement_with_ops GTY ((tag ("GSS_WITH_OPS"))) gsops;
+ struct gimple_statement_with_memory_ops_base GTY ((tag ("GSS_WITH_MEM_OPS_BASE"))) gsmembase;
struct gimple_statement_with_memory_ops GTY ((tag ("GSS_WITH_MEM_OPS"))) gsmem;
struct gimple_statement_omp GTY ((tag ("GSS_OMP"))) omp;
struct gimple_statement_bind GTY ((tag ("GSS_BIND"))) gimple_bind;
struct gimple_statement_catch GTY ((tag ("GSS_CATCH"))) gimple_catch;
struct gimple_statement_eh_filter GTY ((tag ("GSS_EH_FILTER"))) gimple_eh_filter;
+ struct gimple_statement_eh_mnt GTY ((tag ("GSS_EH_MNT"))) gimple_eh_mnt;
struct gimple_statement_phi GTY ((tag ("GSS_PHI"))) gimple_phi;
- struct gimple_statement_resx GTY ((tag ("GSS_RESX"))) gimple_resx;
+ struct gimple_statement_eh_ctrl GTY ((tag ("GSS_EH_CTRL"))) gimple_eh_ctrl;
struct gimple_statement_try GTY ((tag ("GSS_TRY"))) gimple_try;
struct gimple_statement_wce GTY ((tag ("GSS_WCE"))) gimple_wce;
struct gimple_statement_asm GTY ((tag ("GSS_ASM"))) gimple_asm;
};
/* In gimple.c. */
+
+/* Offset in bytes to the location of the operand vector.
+ Zero if there is no operand vector for this tuple structure. */
+extern size_t const gimple_ops_offset_[];
+
+/* Map GIMPLE codes to GSS codes. */
+extern enum gimple_statement_structure_enum const gss_for_code_[];
+
+/* This variable holds the currently expanded gimple statement for purposes
+ of comminucating the profile info to the builtin expanders. */
+extern gimple currently_expanding_gimple_stmt;
+
gimple gimple_build_return (tree);
gimple gimple_build_assign_stat (tree, tree MEM_STAT_DECL);
#define gimple_build_assign_with_ops(c,o1,o2,o3) \
gimple_build_assign_with_ops_stat (c, o1, o2, o3 MEM_STAT_INFO)
+gimple gimple_build_debug_bind_stat (tree, tree, gimple MEM_STAT_DECL);
+#define gimple_build_debug_bind(var,val,stmt) \
+ gimple_build_debug_bind_stat ((var), (val), (stmt) MEM_STAT_INFO)
+
gimple gimple_build_call_vec (tree, VEC(tree, heap) *);
gimple gimple_build_call (tree, unsigned, ...);
gimple gimple_build_call_from_tree (tree);
gimple gimple_build_goto (tree dest);
gimple gimple_build_nop (void);
gimple gimple_build_bind (tree, gimple_seq, tree);
-gimple gimple_build_asm (const char *, unsigned, unsigned, unsigned, ...);
gimple gimple_build_asm_vec (const char *, VEC(tree,gc) *, VEC(tree,gc) *,
- VEC(tree,gc) *);
+ VEC(tree,gc) *, VEC(tree,gc) *);
gimple gimple_build_catch (tree, gimple_seq);
gimple gimple_build_eh_filter (tree, gimple_seq);
+gimple gimple_build_eh_must_not_throw (tree);
gimple gimple_build_try (gimple_seq, gimple_seq, enum gimple_try_flags);
gimple gimple_build_wce (gimple_seq);
gimple gimple_build_resx (int);
+gimple gimple_build_eh_dispatch (int);
+gimple gimple_build_switch_nlabels (unsigned, tree, tree);
gimple gimple_build_switch (unsigned, tree, tree, ...);
gimple gimple_build_switch_vec (tree, tree, VEC(tree,heap) *);
gimple gimple_build_omp_parallel (gimple_seq, tree, tree, tree);
gimple gimple_build_omp_atomic_load (tree, tree);
gimple gimple_build_omp_atomic_store (tree);
gimple gimple_build_predict (enum br_predictor, enum prediction);
-enum gimple_statement_structure_enum gimple_statement_structure (gimple);
enum gimple_statement_structure_enum gss_for_assign (enum tree_code);
void sort_case_labels (VEC(tree,heap) *);
void gimple_set_body (tree, gimple_seq);
tree, tree);
tree gimple_get_lhs (const_gimple);
void gimple_set_lhs (gimple, tree);
+void gimple_replace_lhs (gimple, tree);
gimple gimple_copy (gimple);
bool is_gimple_operand (const_tree);
void gimple_set_modified (gimple, bool);
void gimple_regimplify_operands (gimple, gimple_stmt_iterator *);
bool empty_body_p (gimple_seq);
unsigned get_gimple_rhs_num_ops (enum tree_code);
+#define gimple_alloc(c, n) gimple_alloc_stat (c, n MEM_STAT_INFO)
+gimple gimple_alloc_stat (enum gimple_code, unsigned MEM_STAT_DECL);
+const char *gimple_decl_printable_name (tree, int);
+tree gimple_fold_obj_type_ref (tree, tree);
/* Returns true iff T is a valid GIMPLE statement. */
extern bool is_gimple_stmt (tree);
extern tree get_call_expr_in (tree t);
extern void recalculate_side_effects (tree);
+extern tree gimple_register_type (tree);
+extern void print_gimple_types_stats (void);
+extern void free_gimple_type_tables (void);
+extern tree gimple_unsigned_type (tree);
+extern tree gimple_signed_type (tree);
+extern alias_set_type gimple_get_alias_set (tree);
extern void count_uses_and_derefs (tree, gimple, unsigned *, unsigned *,
unsigned *);
extern bool walk_stmt_load_store_addr_ops (gimple, void *,
extern tree get_initialized_tmp_var (tree, gimple_seq *, gimple_seq *);
extern tree get_formal_tmp_var (tree, gimple_seq *);
extern void declare_vars (tree, gimple, bool);
-extern void tree_annotate_all_with_location (tree *, location_t);
extern void annotate_all_with_location (gimple_seq, location_t);
/* Validation of GIMPLE expressions. Note that these predicates only check
gimple_seq conditional_cleanups;
tree exit_label;
tree return_temp;
-
+
VEC(tree,heap) *case_labels;
/* The formal temporary table. Should this be persistent? */
htab_t temp_htab;
extern tree canonicalize_cond_expr_cond (tree);
/* In omp-low.c. */
-extern void diagnose_omp_structured_block_errors (tree);
extern tree omp_reduction_init (tree, tree);
/* In tree-nested.c. */
}
+/* Return the GSS code used by a GIMPLE code. */
+
+static inline enum gimple_statement_structure_enum
+gss_for_code (enum gimple_code code)
+{
+ gcc_assert ((unsigned int)code < LAST_AND_UNUSED_GIMPLE_CODE);
+ return gss_for_code_[code];
+}
+
+
+/* Return which GSS code is used by GS. */
+
+static inline enum gimple_statement_structure_enum
+gimple_statement_structure (gimple gs)
+{
+ return gss_for_code (gimple_code (gs));
+}
+
+
/* Return true if statement G has sub-statements. This is only true for
High GIMPLE statements. */
return false;
}
}
-
+
/* Return the basic block holding statement G. */
return NULL_USE_OPERAND_P;
ops = g->gsops.opbase.use_ops;
if (ops
- && USE_OP_PTR (ops)->use == &g->gsmem.membase.vuse)
+ && USE_OP_PTR (ops)->use == &g->gsmembase.vuse)
return USE_OP_PTR (ops);
return NULL_USE_OPERAND_P;
}
return NULL_DEF_OPERAND_P;
ops = g->gsops.opbase.def_ops;
if (ops
- && DEF_OP_PTR (ops) == &g->gsmem.membase.vdef)
+ && DEF_OP_PTR (ops) == &g->gsmembase.vdef)
return DEF_OP_PTR (ops);
return NULL_DEF_OPERAND_P;
}
{
if (!gimple_has_mem_ops (g))
return NULL_TREE;
- return g->gsmem.membase.vuse;
+ return g->gsmembase.vuse;
}
/* Return the single VDEF operand of the statement G. */
{
if (!gimple_has_mem_ops (g))
return NULL_TREE;
- return g->gsmem.membase.vdef;
+ return g->gsmembase.vdef;
}
/* Return the single VUSE operand of the statement G. */
{
if (!gimple_has_mem_ops (g))
return NULL;
- return &g->gsmem.membase.vuse;
+ return &g->gsmembase.vuse;
}
/* Return the single VDEF operand of the statement G. */
{
if (!gimple_has_mem_ops (g))
return NULL;
- return &g->gsmem.membase.vdef;
+ return &g->gsmembase.vdef;
}
/* Set the single VUSE operand of the statement G. */
gimple_set_vuse (gimple g, tree vuse)
{
gcc_assert (gimple_has_mem_ops (g));
- g->gsmem.membase.vuse = vuse;
+ g->gsmembase.vuse = vuse;
}
/* Set the single VDEF operand of the statement G. */
gimple_set_vdef (gimple g, tree vdef)
{
gcc_assert (gimple_has_mem_ops (g));
- g->gsmem.membase.vdef = vdef;
+ g->gsmembase.vdef = vdef;
}
static inline tree *
gimple_ops (gimple gs)
{
- /* Offset in bytes to the location of the operand vector in every
- tuple structure. Defined in gimple.c */
- extern size_t const gimple_ops_offset_[];
-
- if (!gimple_has_ops (gs))
- return NULL;
+ size_t off;
/* All the tuples have their operand vector at the very bottom
- of the structure. */
- return ((tree *) ((char *) gs + gimple_ops_offset_[gimple_code (gs)]));
+ of the structure. Note that those structures that do not
+ have an operand vector have a zero offset. */
+ off = gimple_ops_offset_[gimple_statement_structure (gs)];
+ gcc_assert (off != 0);
+
+ return (tree *) ((char *) gs + off);
}
{
GIMPLE_CHECK (gs, GIMPLE_CALL);
gcc_assert (TREE_CODE (decl) == FUNCTION_DECL);
- gimple_set_op (gs, 1, build_fold_addr_expr (decl));
+ gimple_set_op (gs, 1, build_fold_addr_expr_loc (gimple_location (gs), decl));
}
/* Set DEST to be the destination of the unconditonal jump GS. */
-static inline void
+static inline void
gimple_goto_set_dest (gimple gs, tree dest)
{
GIMPLE_CHECK (gs, GIMPLE_GOTO);
return gs->gimple_asm.nc;
}
+/* Return the number of label operands for GIMPLE_ASM GS. */
+
+static inline unsigned
+gimple_asm_nlabels (const_gimple gs)
+{
+ GIMPLE_CHECK (gs, GIMPLE_ASM);
+ return gs->gimple_asm.nl;
+}
/* Return input operand INDEX of GIMPLE_ASM GS. */
gimple_set_op (gs, index + gs->gimple_asm.ni + gs->gimple_asm.no, clobber_op);
}
+/* Return label operand INDEX of GIMPLE_ASM GS. */
+
+static inline tree
+gimple_asm_label_op (const_gimple gs, unsigned index)
+{
+ GIMPLE_CHECK (gs, GIMPLE_ASM);
+ gcc_assert (index <= gs->gimple_asm.nl);
+ return gimple_op (gs, index + gs->gimple_asm.ni + gs->gimple_asm.nc);
+}
+
+/* Set LABEL_OP to be label operand INDEX in GIMPLE_ASM GS. */
+
+static inline void
+gimple_asm_set_label_op (gimple gs, unsigned index, tree label_op)
+{
+ GIMPLE_CHECK (gs, GIMPLE_ASM);
+ gcc_assert (index <= gs->gimple_asm.nl);
+ gcc_assert (TREE_CODE (label_op) == TREE_LIST);
+ gimple_set_op (gs, index + gs->gimple_asm.ni + gs->gimple_asm.nc, label_op);
+}
/* Return the string representing the assembly instruction in
GIMPLE_ASM GS. */
gs->gimple_eh_filter.failure = failure;
}
-/* Return the EH_FILTER_MUST_NOT_THROW flag. */
-
-static inline bool
+/* Get the function decl to be called by the MUST_NOT_THROW region. */
-gimple_eh_filter_must_not_throw (gimple gs)
+static inline tree
+gimple_eh_must_not_throw_fndecl (gimple gs)
{
- GIMPLE_CHECK (gs, GIMPLE_EH_FILTER);
- return gs->gsbase.subcode != 0;
+ GIMPLE_CHECK (gs, GIMPLE_EH_MUST_NOT_THROW);
+ return gs->gimple_eh_mnt.fndecl;
}
-/* Set the EH_FILTER_MUST_NOT_THROW flag to the value MNTP. */
+/* Set the function decl to be called by GS to DECL. */
static inline void
-gimple_eh_filter_set_must_not_throw (gimple gs, bool mntp)
+gimple_eh_must_not_throw_set_fndecl (gimple gs, tree decl)
{
- GIMPLE_CHECK (gs, GIMPLE_EH_FILTER);
- gs->gsbase.subcode = (unsigned int) mntp;
+ GIMPLE_CHECK (gs, GIMPLE_EH_MUST_NOT_THROW);
+ gs->gimple_eh_mnt.fndecl = decl;
}
gimple_resx_region (const_gimple gs)
{
GIMPLE_CHECK (gs, GIMPLE_RESX);
- return gs->gimple_resx.region;
+ return gs->gimple_eh_ctrl.region;
}
/* Set REGION to be the region number for GIMPLE_RESX GS. */
gimple_resx_set_region (gimple gs, int region)
{
GIMPLE_CHECK (gs, GIMPLE_RESX);
- gs->gimple_resx.region = region;
+ gs->gimple_eh_ctrl.region = region;
}
+/* Return the region number for GIMPLE_EH_DISPATCH GS. */
+
+static inline int
+gimple_eh_dispatch_region (const_gimple gs)
+{
+ GIMPLE_CHECK (gs, GIMPLE_EH_DISPATCH);
+ return gs->gimple_eh_ctrl.region;
+}
+
+/* Set REGION to be the region number for GIMPLE_EH_DISPATCH GS. */
+
+static inline void
+gimple_eh_dispatch_set_region (gimple gs, int region)
+{
+ GIMPLE_CHECK (gs, GIMPLE_EH_DISPATCH);
+ gs->gimple_eh_ctrl.region = region;
+}
/* Return the number of labels associated with the switch statement GS. */
gimple_switch_set_label (gs, 0, label);
}
+/* Return true if GS is a GIMPLE_DEBUG statement. */
+
+static inline bool
+is_gimple_debug (const_gimple gs)
+{
+ return gimple_code (gs) == GIMPLE_DEBUG;
+}
+
+/* Return true if S is a GIMPLE_DEBUG BIND statement. */
+
+static inline bool
+gimple_debug_bind_p (const_gimple s)
+{
+ if (is_gimple_debug (s))
+ return s->gsbase.subcode == GIMPLE_DEBUG_BIND;
+
+ return false;
+}
+
+/* Return the variable bound in a GIMPLE_DEBUG bind statement. */
+
+static inline tree
+gimple_debug_bind_get_var (gimple dbg)
+{
+ GIMPLE_CHECK (dbg, GIMPLE_DEBUG);
+ gcc_assert (gimple_debug_bind_p (dbg));
+ return gimple_op (dbg, 0);
+}
+
+/* Return the value bound to the variable in a GIMPLE_DEBUG bind
+ statement. */
+
+static inline tree
+gimple_debug_bind_get_value (gimple dbg)
+{
+ GIMPLE_CHECK (dbg, GIMPLE_DEBUG);
+ gcc_assert (gimple_debug_bind_p (dbg));
+ return gimple_op (dbg, 1);
+}
+
+/* Return a pointer to the value bound to the variable in a
+ GIMPLE_DEBUG bind statement. */
+
+static inline tree *
+gimple_debug_bind_get_value_ptr (gimple dbg)
+{
+ GIMPLE_CHECK (dbg, GIMPLE_DEBUG);
+ gcc_assert (gimple_debug_bind_p (dbg));
+ return gimple_op_ptr (dbg, 1);
+}
+
+/* Set the variable bound in a GIMPLE_DEBUG bind statement. */
+
+static inline void
+gimple_debug_bind_set_var (gimple dbg, tree var)
+{
+ GIMPLE_CHECK (dbg, GIMPLE_DEBUG);
+ gcc_assert (gimple_debug_bind_p (dbg));
+ gimple_set_op (dbg, 0, var);
+}
+
+/* Set the value bound to the variable in a GIMPLE_DEBUG bind
+ statement. */
+
+static inline void
+gimple_debug_bind_set_value (gimple dbg, tree value)
+{
+ GIMPLE_CHECK (dbg, GIMPLE_DEBUG);
+ gcc_assert (gimple_debug_bind_p (dbg));
+ gimple_set_op (dbg, 1, value);
+}
+
+/* The second operand of a GIMPLE_DEBUG_BIND, when the value was
+ optimized away. */
+#define GIMPLE_DEBUG_BIND_NOVALUE NULL_TREE /* error_mark_node */
+
+/* Remove the value bound to the variable in a GIMPLE_DEBUG bind
+ statement. */
+
+static inline void
+gimple_debug_bind_reset_value (gimple dbg)
+{
+ GIMPLE_CHECK (dbg, GIMPLE_DEBUG);
+ gcc_assert (gimple_debug_bind_p (dbg));
+ gimple_set_op (dbg, 1, GIMPLE_DEBUG_BIND_NOVALUE);
+}
+
+/* Return true if the GIMPLE_DEBUG bind statement is bound to a
+ value. */
+
+static inline bool
+gimple_debug_bind_has_value_p (gimple dbg)
+{
+ GIMPLE_CHECK (dbg, GIMPLE_DEBUG);
+ gcc_assert (gimple_debug_bind_p (dbg));
+ return gimple_op (dbg, 1) != GIMPLE_DEBUG_BIND_NOVALUE;
+}
+
+#undef GIMPLE_DEBUG_BIND_NOVALUE
/* Return the body for the OMP statement GS. */
-static inline gimple_seq
+static inline gimple_seq
gimple_omp_body (gimple gs)
{
return gs->omp.body;
/* Returns true when the gimple statment STMT is any of the OpenMP types. */
+#define CASE_GIMPLE_OMP \
+ case GIMPLE_OMP_PARALLEL: \
+ case GIMPLE_OMP_TASK: \
+ case GIMPLE_OMP_FOR: \
+ case GIMPLE_OMP_SECTIONS: \
+ case GIMPLE_OMP_SECTIONS_SWITCH: \
+ case GIMPLE_OMP_SINGLE: \
+ case GIMPLE_OMP_SECTION: \
+ case GIMPLE_OMP_MASTER: \
+ case GIMPLE_OMP_ORDERED: \
+ case GIMPLE_OMP_CRITICAL: \
+ case GIMPLE_OMP_RETURN: \
+ case GIMPLE_OMP_ATOMIC_LOAD: \
+ case GIMPLE_OMP_ATOMIC_STORE: \
+ case GIMPLE_OMP_CONTINUE
+
static inline bool
is_gimple_omp (const_gimple stmt)
{
- return (gimple_code (stmt) == GIMPLE_OMP_PARALLEL
- || gimple_code (stmt) == GIMPLE_OMP_TASK
- || gimple_code (stmt) == GIMPLE_OMP_FOR
- || gimple_code (stmt) == GIMPLE_OMP_SECTIONS
- || gimple_code (stmt) == GIMPLE_OMP_SECTIONS_SWITCH
- || gimple_code (stmt) == GIMPLE_OMP_SINGLE
- || gimple_code (stmt) == GIMPLE_OMP_SECTION
- || gimple_code (stmt) == GIMPLE_OMP_MASTER
- || gimple_code (stmt) == GIMPLE_OMP_ORDERED
- || gimple_code (stmt) == GIMPLE_OMP_CRITICAL
- || gimple_code (stmt) == GIMPLE_OMP_RETURN
- || gimple_code (stmt) == GIMPLE_OMP_ATOMIC_LOAD
- || gimple_code (stmt) == GIMPLE_OMP_ATOMIC_STORE
- || gimple_code (stmt) == GIMPLE_OMP_CONTINUE);
+ switch (gimple_code (stmt))
+ {
+ CASE_GIMPLE_OMP:
+ return true;
+ default:
+ return false;
+ }
}
}
+/* Return true if GS is a GIMPLE_RESX. */
+
+static inline bool
+is_gimple_resx (const_gimple gs)
+{
+ return gimple_code (gs) == GIMPLE_RESX;
+}
+
/* Return the predictor of GIMPLE_PREDICT statement GS. */
static inline enum br_predictor
{
gimple_stmt_iterator i;
gimple_seq seq;
-
+
seq = bb_seq (bb);
i.ptr = gimple_seq_first (seq);
i.seq = seq;
return gsi;
}
+/* Advance the iterator to the next non-debug gimple statement. */
+
+static inline void
+gsi_next_nondebug (gimple_stmt_iterator *i)
+{
+ do
+ {
+ gsi_next (i);
+ }
+ while (!gsi_end_p (*i) && is_gimple_debug (gsi_stmt (*i)));
+}
+
+/* Advance the iterator to the next non-debug gimple statement. */
+
+static inline void
+gsi_prev_nondebug (gimple_stmt_iterator *i)
+{
+ do
+ {
+ gsi_prev (i);
+ }
+ while (!gsi_end_p (*i) && is_gimple_debug (gsi_stmt (*i)));
+}
+
+/* Return a new iterator pointing to the first non-debug statement in
+ basic block BB. */
+
+static inline gimple_stmt_iterator
+gsi_start_nondebug_bb (basic_block bb)
+{
+ gimple_stmt_iterator i = gsi_start_bb (bb);
+
+ if (!gsi_end_p (i) && is_gimple_debug (gsi_stmt (i)))
+ gsi_next_nondebug (&i);
+
+ return i;
+}
+
+/* Return a new iterator pointing to the last non-debug statement in
+ basic block BB. */
+
+static inline gimple_stmt_iterator
+gsi_last_nondebug_bb (basic_block bb)
+{
+ gimple_stmt_iterator i = gsi_last_bb (bb);
+
+ if (!gsi_end_p (i) && is_gimple_debug (gsi_stmt (i)))
+ gsi_prev_nondebug (&i);
+
+ return i;
+}
+
/* Return a pointer to the current stmt.
-
+
NOTE: You may want to use gsi_replace on the iterator itself,
as this performs additional bookkeeping that will not be done
if you simply assign through a pointer returned by gsi_stmt_ptr. */
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