On Fri, 2019-12-06 at 11:52 +0100, Richard Biener wrote:
> On Sat, Nov 16, 2019 at 2:20 AM David Malcolm <dmalc...@redhat.com>
> wrote:
> > This patch converts various "gimple *" to "const gimple *" and
> > similar
> > fixes for gimple subclasses, adding is_a_helper for gimple
> > subclasses
> > to support the const form of as_a, and adding a few "const"
> > overloads
> > of accessors.
> >
> > This is enough to make pp_gimple_stmt_1's stmt const.
>
> Hum. Can't the const is-a variants be somehow magically implemented
> generally? If something is a T then it is also a const T, no? I
> guess
> if something is a const T it isn't a T though?
>
> Richard.
It is something of a wart to need new is_a_helper<>::test functions for
the const variants.
I tried poking at is-a.h to do this in a more generic way, but I'm not
sure it's doable without an invasive change: is_a_helper's T is
already a pointer, so AIUI, if we apply "const" to it, we're making the
pointer const, rather than the thing being pointed to.
Maybe someone else can see a way?
In the meantime, is this patch OK? (I use "const gimple *" etc
throughout the analyzer, to emphasize that I'm not changing them)
Thanks
Dave
> > gcc/ChangeLog:
> > * gimple-predict.h (gimple_predict_predictor): Make "gs"
> > param
> > const.
> > (gimple_predict_outcome): Likewise.
> > * gimple-pretty-print.c (do_niy): Likewise.
> > (dump_unary_rhs): Likewise.
> > (dump_binary_rhs): Likewise.
> > (dump_ternary_rhs): Likewise.
> > (dump_gimple_assign): Likewise.
> > (dump_gimple_return): Likewise.
> > (dump_gimple_call_args): Likewise.
> > (pp_points_to_solution): Make "pt" param const.
> > (dump_gimple_call): Make "gs" param const.
> > (dump_gimple_switch): Likewise.
> > (dump_gimple_cond): Likewise.
> > (dump_gimple_label): Likewise.
> > (dump_gimple_goto): Likewise.
> > (dump_gimple_bind): Likewise.
> > (dump_gimple_try): Likewise.
> > (dump_gimple_catch): Likewise.
> > (dump_gimple_eh_filter): Likewise.
> > (dump_gimple_eh_must_not_throw): Likewise.
> > (dump_gimple_eh_else): Likewise.
> > (dump_gimple_resx): Likewise.
> > (dump_gimple_eh_dispatch): Likewise.
> > (dump_gimple_debug): Likewise.
> > (dump_gimple_omp_for): Likewise.
> > (dump_gimple_omp_continue): Likewise.
> > (dump_gimple_omp_single): Likewise.
> > (dump_gimple_omp_taskgroup): Likewise.
> > (dump_gimple_omp_target): Likewise.
> > (dump_gimple_omp_teams): Likewise.
> > (dump_gimple_omp_sections): Likewise.
> > (dump_gimple_omp_block): Likewise.
> > (dump_gimple_omp_critical): Likewise.
> > (dump_gimple_omp_ordered): Likewise.
> > (dump_gimple_omp_scan): Likewise.
> > (dump_gimple_omp_return): Likewise.
> > (dump_gimple_transaction): Likewise.
> > (dump_gimple_asm): Likewise.
> > (dump_gimple_phi): Make "phi" param const.
> > (dump_gimple_omp_parallel): Make "gs" param const.
> > (dump_gimple_omp_task): Likewise.
> > (dump_gimple_omp_atomic_load): Likewise.
> > (dump_gimple_omp_atomic_store): Likewise.
> > (dump_gimple_mem_ops): Likewise.
> > (pp_gimple_stmt_1): Likewise. Add "const" to the various
> > as_a <>
> > casts throughout.
> > * gimple-pretty-print.h (gimple_stmt_1): Make gimple *
> > param const.
> > * gimple.h (is_a_helper <const gdebug *>::test): New.
> > (is_a_helper <const ggoto *>::test): New.
> > (is_a_helper <const glabel *>::test): New.
> > (is_a_helper <const geh_else *>::test): New.
> > (is_a_helper <const geh_mnt *>::test): New.
> > (is_a_helper <const gswitch *>::test): New.
> > (is_a_helper <const gtry *>::test): New.
> > (is_a_helper <const greturn *>::test): New.
> > (gimple_call_tail_p): Make param const.
> > (gimple_call_return_slot_opt_p): Likewise.
> > (gimple_call_va_arg_pack_p): Likewise.
> > (gimple_call_use_set): Add const overload.
> > (gimple_call_clobber_set): Likewise.
> > (gimple_has_lhs): Make param const.
> > (gimple_bind_body): Likewise.
> > (gimple_catch_handler): Likewise.
> > (gimple_eh_filter_failure): Likewise.
> > (gimple_eh_must_not_throw_fndecl): Likewise.
> > (gimple_eh_else_n_body): Likewise.
> > (gimple_eh_else_e_body): Likewise.
> > (gimple_try_eval): Likewise.
> > (gimple_try_cleanup): Likewise.
> > (gimple_phi_arg): Add const overload.
> > (gimple_phi_arg_def): Make param const.
> > (gimple_phi_arg_edge): Likewise.
> > (gimple_phi_arg_location): Likewise.
> > (gimple_phi_arg_has_location): Likewise.
> > (gimple_debug_bind_get_var): Likewise.
> > (gimple_debug_bind_get_value): Likewise.
> > (gimple_debug_source_bind_get_var): Likewise.
> > (gimple_debug_source_bind_get_value): Likewise.
> > (gimple_omp_body): Likewise.
> > (gimple_omp_for_collapse): Likewise.
> > (gimple_omp_for_pre_body): Likewise.
> > (gimple_transaction_body): Likewise.
> > * tree-eh.c (lookup_stmt_eh_lp_fn): Make param "t" const.
> > (lookup_stmt_eh_lp): Likewise.
> > * tree-eh.h (lookup_stmt_eh_lp_fn): Make param const.
> > (lookup_stmt_eh_lp): Likewise.
> > * tree-ssa-alias.h (pt_solution_empty_p): Make param const.
> > * tree-ssa-structalias.c (pt_solution_empty_p): Likewise.
> > ---
> > gcc/gimple-predict.h | 4 +-
> > gcc/gimple-pretty-print.c | 159 +++++++++++++++++++++++--------
> > --------------
> > gcc/gimple-pretty-print.h | 3 +-
> > gcc/gimple.h | 156
> > ++++++++++++++++++++++++++++++++++----------
> > gcc/tree-eh.c | 6 +-
> > gcc/tree-eh.h | 4 +-
> > gcc/tree-ssa-alias.h | 2 +-
> > gcc/tree-ssa-structalias.c | 2 +-
> > 8 files changed, 213 insertions(+), 123 deletions(-)
> >
> > diff --git a/gcc/gimple-predict.h b/gcc/gimple-predict.h
> > index 761098b..d976317 100644
> > --- a/gcc/gimple-predict.h
> > +++ b/gcc/gimple-predict.h
> > @@ -26,7 +26,7 @@ along with GCC; see the file COPYING3. If not
> > see
> > /* Return the predictor of GIMPLE_PREDICT statement GS. */
> >
> > static inline enum br_predictor
> > -gimple_predict_predictor (gimple *gs)
> > +gimple_predict_predictor (const gimple *gs)
> > {
> > GIMPLE_CHECK (gs, GIMPLE_PREDICT);
> > return (enum br_predictor) (gs->subcode & ~GF_PREDICT_TAKEN);
> > @@ -47,7 +47,7 @@ gimple_predict_set_predictor (gimple *gs, enum
> > br_predictor predictor)
> > /* Return the outcome of GIMPLE_PREDICT statement GS. */
> >
> > static inline enum prediction
> > -gimple_predict_outcome (gimple *gs)
> > +gimple_predict_outcome (const gimple *gs)
> > {
> > GIMPLE_CHECK (gs, GIMPLE_PREDICT);
> > return (gs->subcode & GF_PREDICT_TAKEN) ? TAKEN : NOT_TAKEN;
> > diff --git a/gcc/gimple-pretty-print.c b/gcc/gimple-pretty-print.c
> > index 2d5ece0..f044628 100644
> > --- a/gcc/gimple-pretty-print.c
> > +++ b/gcc/gimple-pretty-print.c
> > @@ -59,7 +59,7 @@ along with GCC; see the file COPYING3. If not
> > see
> > gimple statement GS. */
> >
> > static void
> > -do_niy (pretty_printer *buffer, gimple *gs)
> > +do_niy (pretty_printer *buffer, const gimple *gs)
> > {
> > pp_printf (buffer, "<<< Unknown GIMPLE statement: %s >>>\n",
> > gimple_code_name[(int) gimple_code (gs)]);
> > @@ -327,7 +327,7 @@ dump_gimple_fmt (pretty_printer *buffer, int
> > spc, dump_flags_t flags,
> > assignment GS. BUFFER, SPC and FLAGS are as in
> > pp_gimple_stmt_1. */
> >
> > static void
> > -dump_unary_rhs (pretty_printer *buffer, gassign *gs, int spc,
> > +dump_unary_rhs (pretty_printer *buffer, const gassign *gs, int
> > spc,
> > dump_flags_t flags)
> > {
> > enum tree_code rhs_code = gimple_assign_rhs_code (gs);
> > @@ -423,7 +423,7 @@ dump_unary_rhs (pretty_printer *buffer, gassign
> > *gs, int spc,
> > assignment GS. BUFFER, SPC and FLAGS are as in
> > pp_gimple_stmt_1. */
> >
> > static void
> > -dump_binary_rhs (pretty_printer *buffer, gassign *gs, int spc,
> > +dump_binary_rhs (pretty_printer *buffer, const gassign *gs, int
> > spc,
> > dump_flags_t flags)
> > {
> > const char *p;
> > @@ -495,7 +495,7 @@ dump_binary_rhs (pretty_printer *buffer,
> > gassign *gs, int spc,
> > assignment GS. BUFFER, SPC and FLAGS are as in
> > pp_gimple_stmt_1. */
> >
> > static void
> > -dump_ternary_rhs (pretty_printer *buffer, gassign *gs, int spc,
> > +dump_ternary_rhs (pretty_printer *buffer, const gassign *gs, int
> > spc,
> > dump_flags_t flags)
> > {
> > const char *p;
> > @@ -625,7 +625,7 @@ dump_ternary_rhs (pretty_printer *buffer,
> > gassign *gs, int spc,
> > pp_gimple_stmt_1. */
> >
> > static void
> > -dump_gimple_assign (pretty_printer *buffer, gassign *gs, int spc,
> > +dump_gimple_assign (pretty_printer *buffer, const gassign *gs, int
> > spc,
> > dump_flags_t flags)
> > {
> > if (flags & TDF_RAW)
> > @@ -687,7 +687,7 @@ dump_gimple_assign (pretty_printer *buffer,
> > gassign *gs, int spc,
> > pp_gimple_stmt_1. */
> >
> > static void
> > -dump_gimple_return (pretty_printer *buffer, greturn *gs, int spc,
> > +dump_gimple_return (pretty_printer *buffer, const greturn *gs, int
> > spc,
> > dump_flags_t flags)
> > {
> > tree t;
> > @@ -712,7 +712,8 @@ dump_gimple_return (pretty_printer *buffer,
> > greturn *gs, int spc,
> > dump_gimple_call. */
> >
> > static void
> > -dump_gimple_call_args (pretty_printer *buffer, gcall *gs,
> > dump_flags_t flags)
> > +dump_gimple_call_args (pretty_printer *buffer, const gcall *gs,
> > + dump_flags_t flags)
> > {
> > size_t i = 0;
> >
> > @@ -795,7 +796,7 @@ dump_gimple_call_args (pretty_printer *buffer,
> > gcall *gs, dump_flags_t flags)
> > /* Dump the points-to solution *PT to BUFFER. */
> >
> > static void
> > -pp_points_to_solution (pretty_printer *buffer, struct pt_solution
> > *pt)
> > +pp_points_to_solution (pretty_printer *buffer, const pt_solution
> > *pt)
> > {
> > if (pt->anything)
> > {
> > @@ -868,7 +869,7 @@ pp_points_to_solution (pretty_printer *buffer,
> > struct pt_solution *pt)
> > pp_gimple_stmt_1. */
> >
> > static void
> > -dump_gimple_call (pretty_printer *buffer, gcall *gs, int spc,
> > +dump_gimple_call (pretty_printer *buffer, const gcall *gs, int
> > spc,
> > dump_flags_t flags)
> > {
> > tree lhs = gimple_call_lhs (gs);
> > @@ -876,7 +877,7 @@ dump_gimple_call (pretty_printer *buffer, gcall
> > *gs, int spc,
> >
> > if (flags & TDF_ALIAS)
> > {
> > - struct pt_solution *pt;
> > + const pt_solution *pt;
> > pt = gimple_call_use_set (gs);
> > if (!pt_solution_empty_p (pt))
> > {
> > @@ -1006,7 +1007,7 @@ dump_gimple_call (pretty_printer *buffer,
> > gcall *gs, int spc,
> > pp_gimple_stmt_1. */
> >
> > static void
> > -dump_gimple_switch (pretty_printer *buffer, gswitch *gs, int spc,
> > +dump_gimple_switch (pretty_printer *buffer, const gswitch *gs, int
> > spc,
> > dump_flags_t flags)
> > {
> > unsigned int i;
> > @@ -1064,7 +1065,7 @@ dump_gimple_switch (pretty_printer *buffer,
> > gswitch *gs, int spc,
> > pp_gimple_stmt_1. */
> >
> > static void
> > -dump_gimple_cond (pretty_printer *buffer, gcond *gs, int spc,
> > +dump_gimple_cond (pretty_printer *buffer, const gcond *gs, int
> > spc,
> > dump_flags_t flags)
> > {
> > if (flags & TDF_RAW)
> > @@ -1131,7 +1132,7 @@ dump_gimple_cond (pretty_printer *buffer,
> > gcond *gs, int spc,
> > TDF_* in dumpfils.h). */
> >
> > static void
> > -dump_gimple_label (pretty_printer *buffer, glabel *gs, int spc,
> > +dump_gimple_label (pretty_printer *buffer, const glabel *gs, int
> > spc,
> > dump_flags_t flags)
> > {
> > tree label = gimple_label_label (gs);
> > @@ -1155,7 +1156,7 @@ dump_gimple_label (pretty_printer *buffer,
> > glabel *gs, int spc,
> > TDF_* in dumpfile.h). */
> >
> > static void
> > -dump_gimple_goto (pretty_printer *buffer, ggoto *gs, int spc,
> > +dump_gimple_goto (pretty_printer *buffer, const ggoto *gs, int
> > spc,
> > dump_flags_t flags)
> > {
> > tree label = gimple_goto_dest (gs);
> > @@ -1171,7 +1172,7 @@ dump_gimple_goto (pretty_printer *buffer,
> > ggoto *gs, int spc,
> > TDF_* in dumpfile.h). */
> >
> > static void
> > -dump_gimple_bind (pretty_printer *buffer, gbind *gs, int spc,
> > +dump_gimple_bind (pretty_printer *buffer, const gbind *gs, int
> > spc,
> > dump_flags_t flags)
> > {
> > if (flags & TDF_RAW)
> > @@ -1205,7 +1206,7 @@ dump_gimple_bind (pretty_printer *buffer,
> > gbind *gs, int spc,
> > dumpfile.h). */
> >
> > static void
> > -dump_gimple_try (pretty_printer *buffer, gtry *gs, int spc,
> > +dump_gimple_try (pretty_printer *buffer, const gtry *gs, int spc,
> > dump_flags_t flags)
> > {
> > if (flags & TDF_RAW)
> > @@ -1280,7 +1281,7 @@ dump_gimple_try (pretty_printer *buffer, gtry
> > *gs, int spc,
> > dumpfile.h). */
> >
> > static void
> > -dump_gimple_catch (pretty_printer *buffer, gcatch *gs, int spc,
> > +dump_gimple_catch (pretty_printer *buffer, const gcatch *gs, int
> > spc,
> > dump_flags_t flags)
> > {
> > if (flags & TDF_RAW)
> > @@ -1297,7 +1298,7 @@ dump_gimple_catch (pretty_printer *buffer,
> > gcatch *gs, int spc,
> > dumpfile.h). */
> >
> > static void
> > -dump_gimple_eh_filter (pretty_printer *buffer, geh_filter *gs, int
> > spc,
> > +dump_gimple_eh_filter (pretty_printer *buffer, const geh_filter
> > *gs, int spc,
> > dump_flags_t flags)
> > {
> > if (flags & TDF_RAW)
> > @@ -1315,7 +1316,7 @@ dump_gimple_eh_filter (pretty_printer
> > *buffer, geh_filter *gs, int spc,
> >
> > static void
> > dump_gimple_eh_must_not_throw (pretty_printer *buffer,
> > - geh_mnt *gs, int spc, dump_flags_t
> > flags)
> > + const geh_mnt *gs, int spc,
> > dump_flags_t flags)
> > {
> > if (flags & TDF_RAW)
> > dump_gimple_fmt (buffer, spc, flags, "%G <%T>", gs,
> > @@ -1331,7 +1332,7 @@ dump_gimple_eh_must_not_throw (pretty_printer
> > *buffer,
> > dumpfile.h). */
> >
> > static void
> > -dump_gimple_eh_else (pretty_printer *buffer, geh_else *gs, int
> > spc,
> > +dump_gimple_eh_else (pretty_printer *buffer, const geh_else *gs,
> > int spc,
> > dump_flags_t flags)
> > {
> > if (flags & TDF_RAW)
> > @@ -1350,7 +1351,7 @@ dump_gimple_eh_else (pretty_printer *buffer,
> > geh_else *gs, int spc,
> > dumpfile.h). */
> >
> > static void
> > -dump_gimple_resx (pretty_printer *buffer, gresx *gs, int spc,
> > +dump_gimple_resx (pretty_printer *buffer, const gresx *gs, int
> > spc,
> > dump_flags_t flags)
> > {
> > if (flags & TDF_RAW)
> > @@ -1363,8 +1364,8 @@ dump_gimple_resx (pretty_printer *buffer,
> > gresx *gs, int spc,
> > /* Dump a GIMPLE_EH_DISPATCH tuple on the pretty_printer
> > BUFFER. */
> >
> > static void
> > -dump_gimple_eh_dispatch (pretty_printer *buffer, geh_dispatch *gs,
> > int spc,
> > - dump_flags_t flags)
> > +dump_gimple_eh_dispatch (pretty_printer *buffer, const
> > geh_dispatch *gs,
> > + int spc, dump_flags_t flags)
> > {
> > if (flags & TDF_RAW)
> > dump_gimple_fmt (buffer, spc, flags, "%G <%d>", gs,
> > @@ -1379,7 +1380,7 @@ dump_gimple_eh_dispatch (pretty_printer
> > *buffer, geh_dispatch *gs, int spc,
> > in dumpfile.h). */
> >
> > static void
> > -dump_gimple_debug (pretty_printer *buffer, gdebug *gs, int spc,
> > +dump_gimple_debug (pretty_printer *buffer, const gdebug *gs, int
> > spc,
> > dump_flags_t flags)
> > {
> > switch (gs->subcode)
> > @@ -1433,7 +1434,7 @@ dump_gimple_debug (pretty_printer *buffer,
> > gdebug *gs, int spc,
> >
> > /* Dump a GIMPLE_OMP_FOR tuple on the pretty_printer BUFFER. */
> > static void
> > -dump_gimple_omp_for (pretty_printer *buffer, gomp_for *gs, int
> > spc,
> > +dump_gimple_omp_for (pretty_printer *buffer, const gomp_for *gs,
> > int spc,
> > dump_flags_t flags)
> > {
> > size_t i;
> > @@ -1566,7 +1567,7 @@ dump_gimple_omp_for (pretty_printer *buffer,
> > gomp_for *gs, int spc,
> > /* Dump a GIMPLE_OMP_CONTINUE tuple on the pretty_printer
> > BUFFER. */
> >
> > static void
> > -dump_gimple_omp_continue (pretty_printer *buffer, gomp_continue
> > *gs,
> > +dump_gimple_omp_continue (pretty_printer *buffer, const
> > gomp_continue *gs,
> > int spc, dump_flags_t flags)
> > {
> > if (flags & TDF_RAW)
> > @@ -1591,7 +1592,7 @@ dump_gimple_omp_continue (pretty_printer
> > *buffer, gomp_continue *gs,
> > /* Dump a GIMPLE_OMP_SINGLE tuple on the pretty_printer
> > BUFFER. */
> >
> > static void
> > -dump_gimple_omp_single (pretty_printer *buffer, gomp_single *gs,
> > +dump_gimple_omp_single (pretty_printer *buffer, const gomp_single
> > *gs,
> > int spc, dump_flags_t flags)
> > {
> > if (flags & TDF_RAW)
> > @@ -1620,7 +1621,7 @@ dump_gimple_omp_single (pretty_printer
> > *buffer, gomp_single *gs,
> > /* Dump a GIMPLE_OMP_TASKGROUP tuple on the pretty_printer
> > BUFFER. */
> >
> > static void
> > -dump_gimple_omp_taskgroup (pretty_printer *buffer, gimple *gs,
> > +dump_gimple_omp_taskgroup (pretty_printer *buffer, const gimple
> > *gs,
> > int spc, dump_flags_t flags)
> > {
> > if (flags & TDF_RAW)
> > @@ -1649,7 +1650,7 @@ dump_gimple_omp_taskgroup (pretty_printer
> > *buffer, gimple *gs,
> > /* Dump a GIMPLE_OMP_TARGET tuple on the pretty_printer
> > BUFFER. */
> >
> > static void
> > -dump_gimple_omp_target (pretty_printer *buffer, gomp_target *gs,
> > +dump_gimple_omp_target (pretty_printer *buffer, const gomp_target
> > *gs,
> > int spc, dump_flags_t flags)
> > {
> > const char *kind;
> > @@ -1742,7 +1743,7 @@ dump_gimple_omp_target (pretty_printer
> > *buffer, gomp_target *gs,
> > /* Dump a GIMPLE_OMP_TEAMS tuple on the pretty_printer BUFFER. */
> >
> > static void
> > -dump_gimple_omp_teams (pretty_printer *buffer, gomp_teams *gs, int
> > spc,
> > +dump_gimple_omp_teams (pretty_printer *buffer, const gomp_teams
> > *gs, int spc,
> > dump_flags_t flags)
> > {
> > if (flags & TDF_RAW)
> > @@ -1771,7 +1772,7 @@ dump_gimple_omp_teams (pretty_printer
> > *buffer, gomp_teams *gs, int spc,
> > /* Dump a GIMPLE_OMP_SECTIONS tuple on the pretty_printer
> > BUFFER. */
> >
> > static void
> > -dump_gimple_omp_sections (pretty_printer *buffer, gomp_sections
> > *gs,
> > +dump_gimple_omp_sections (pretty_printer *buffer, const
> > gomp_sections *gs,
> > int spc, dump_flags_t flags)
> > {
> > if (flags & TDF_RAW)
> > @@ -1808,7 +1809,7 @@ dump_gimple_omp_sections (pretty_printer
> > *buffer, gomp_sections *gs,
> > pretty_printer BUFFER. */
> >
> > static void
> > -dump_gimple_omp_block (pretty_printer *buffer, gimple *gs, int
> > spc,
> > +dump_gimple_omp_block (pretty_printer *buffer, const gimple *gs,
> > int spc,
> > dump_flags_t flags)
> > {
> > if (flags & TDF_RAW)
> > @@ -1845,7 +1846,7 @@ dump_gimple_omp_block (pretty_printer
> > *buffer, gimple *gs, int spc,
> > /* Dump a GIMPLE_OMP_CRITICAL tuple on the pretty_printer
> > BUFFER. */
> >
> > static void
> > -dump_gimple_omp_critical (pretty_printer *buffer, gomp_critical
> > *gs,
> > +dump_gimple_omp_critical (pretty_printer *buffer, const
> > gomp_critical *gs,
> > int spc, dump_flags_t flags)
> > {
> > if (flags & TDF_RAW)
> > @@ -1877,7 +1878,7 @@ dump_gimple_omp_critical (pretty_printer
> > *buffer, gomp_critical *gs,
> > /* Dump a GIMPLE_OMP_ORDERED tuple on the pretty_printer
> > BUFFER. */
> >
> > static void
> > -dump_gimple_omp_ordered (pretty_printer *buffer, gomp_ordered *gs,
> > +dump_gimple_omp_ordered (pretty_printer *buffer, const
> > gomp_ordered *gs,
> > int spc, dump_flags_t flags)
> > {
> > if (flags & TDF_RAW)
> > @@ -1902,7 +1903,7 @@ dump_gimple_omp_ordered (pretty_printer
> > *buffer, gomp_ordered *gs,
> > /* Dump a GIMPLE_OMP_SCAN tuple on the pretty_printer BUFFER. */
> >
> > static void
> > -dump_gimple_omp_scan (pretty_printer *buffer, gomp_scan *gs,
> > +dump_gimple_omp_scan (pretty_printer *buffer, const gomp_scan *gs,
> > int spc, dump_flags_t flags)
> > {
> > if (flags & TDF_RAW)
> > @@ -1930,7 +1931,7 @@ dump_gimple_omp_scan (pretty_printer *buffer,
> > gomp_scan *gs,
> > /* Dump a GIMPLE_OMP_RETURN tuple on the pretty_printer
> > BUFFER. */
> >
> > static void
> > -dump_gimple_omp_return (pretty_printer *buffer, gimple *gs, int
> > spc,
> > +dump_gimple_omp_return (pretty_printer *buffer, const gimple *gs,
> > int spc,
> > dump_flags_t flags)
> > {
> > if (flags & TDF_RAW)
> > @@ -1961,7 +1962,7 @@ dump_gimple_omp_return (pretty_printer
> > *buffer, gimple *gs, int spc,
> > /* Dump a GIMPLE_TRANSACTION tuple on the pretty_printer
> > BUFFER. */
> >
> > static void
> > -dump_gimple_transaction (pretty_printer *buffer, gtransaction *gs,
> > +dump_gimple_transaction (pretty_printer *buffer, const
> > gtransaction *gs,
> > int spc, dump_flags_t flags)
> > {
> > unsigned subcode = gimple_transaction_subcode (gs);
> > @@ -2063,7 +2064,8 @@ dump_gimple_transaction (pretty_printer
> > *buffer, gtransaction *gs,
> > dumpfile.h). */
> >
> > static void
> > -dump_gimple_asm (pretty_printer *buffer, gasm *gs, int spc,
> > dump_flags_t flags)
> > +dump_gimple_asm (pretty_printer *buffer, const gasm *gs, int spc,
> > + dump_flags_t flags)
> > {
> > unsigned int i, n, f, fields;
> >
> > @@ -2282,7 +2284,7 @@ dump_ssaname_info_to_file (FILE *file, tree
> > node, int spc)
> > pretty printer. If COMMENT is true, print this after #. */
> >
> > static void
> > -dump_gimple_phi (pretty_printer *buffer, gphi *phi, int spc, bool
> > comment,
> > +dump_gimple_phi (pretty_printer *buffer, const gphi *phi, int spc,
> > bool comment,
> > dump_flags_t flags)
> > {
> > size_t i;
> > @@ -2339,7 +2341,7 @@ dump_gimple_phi (pretty_printer *buffer, gphi
> > *phi, int spc, bool comment,
> > dumpfile.h). */
> >
> > static void
> > -dump_gimple_omp_parallel (pretty_printer *buffer, gomp_parallel
> > *gs,
> > +dump_gimple_omp_parallel (pretty_printer *buffer, const
> > gomp_parallel *gs,
> > int spc, dump_flags_t flags)
> > {
> > if (flags & TDF_RAW)
> > @@ -2393,7 +2395,7 @@ dump_gimple_omp_parallel (pretty_printer
> > *buffer, gomp_parallel *gs,
> > dumpfile.h). */
> >
> > static void
> > -dump_gimple_omp_task (pretty_printer *buffer, gomp_task *gs, int
> > spc,
> > +dump_gimple_omp_task (pretty_printer *buffer, const gomp_task *gs,
> > int spc,
> > dump_flags_t flags)
> > {
> > if (flags & TDF_RAW)
> > @@ -2455,7 +2457,7 @@ dump_gimple_omp_task (pretty_printer *buffer,
> > gomp_task *gs, int spc,
> > in dumpfile.h). */
> >
> > static void
> > -dump_gimple_omp_atomic_load (pretty_printer *buffer,
> > gomp_atomic_load *gs,
> > +dump_gimple_omp_atomic_load (pretty_printer *buffer, const
> > gomp_atomic_load *gs,
> > int spc, dump_flags_t flags)
> > {
> > if (flags & TDF_RAW)
> > @@ -2489,7 +2491,7 @@ dump_gimple_omp_atomic_load (pretty_printer
> > *buffer, gomp_atomic_load *gs,
> >
> > static void
> > dump_gimple_omp_atomic_store (pretty_printer *buffer,
> > - gomp_atomic_store *gs, int spc,
> > + const gomp_atomic_store *gs, int spc,
> > dump_flags_t flags)
> > {
> > if (flags & TDF_RAW)
> > @@ -2517,7 +2519,7 @@ dump_gimple_omp_atomic_store (pretty_printer
> > *buffer,
> > FLAGS are as in pp_gimple_stmt_1. */
> >
> > static void
> > -dump_gimple_mem_ops (pretty_printer *buffer, gimple *gs, int spc,
> > +dump_gimple_mem_ops (pretty_printer *buffer, const gimple *gs, int
> > spc,
> > dump_flags_t flags)
> > {
> > tree vdef = gimple_vdef (gs);
> > @@ -2548,14 +2550,14 @@ dump_gimple_mem_ops (pretty_printer
> > *buffer, gimple *gs, int spc,
> > pp_flush on BUFFER to finalize the pretty printer. */
> >
> > void
> > -pp_gimple_stmt_1 (pretty_printer *buffer, gimple *gs, int spc,
> > +pp_gimple_stmt_1 (pretty_printer *buffer, const gimple *gs, int
> > spc,
> > dump_flags_t flags)
> > {
> > if (!gs)
> > return;
> >
> > if (flags & TDF_STMTADDR)
> > - pp_printf (buffer, "<&%p> ", (void *) gs);
> > + pp_printf (buffer, "<&%p> ", (const void *) gs);
> >
> > if ((flags & TDF_LINENO) && gimple_has_location (gs))
> > dump_location (buffer, gimple_location (gs));
> > @@ -2580,31 +2582,31 @@ pp_gimple_stmt_1 (pretty_printer *buffer,
> > gimple *gs, int spc,
> > switch (gimple_code (gs))
> > {
> > case GIMPLE_ASM:
> > - dump_gimple_asm (buffer, as_a <gasm *> (gs), spc, flags);
> > + dump_gimple_asm (buffer, as_a <const gasm *> (gs), spc,
> > flags);
> > break;
> >
> > case GIMPLE_ASSIGN:
> > - dump_gimple_assign (buffer, as_a <gassign *> (gs), spc,
> > flags);
> > + dump_gimple_assign (buffer, as_a <const gassign *> (gs),
> > spc, flags);
> > break;
> >
> > case GIMPLE_BIND:
> > - dump_gimple_bind (buffer, as_a <gbind *> (gs), spc, flags);
> > + dump_gimple_bind (buffer, as_a <const gbind *> (gs), spc,
> > flags);
> > break;
> >
> > case GIMPLE_CALL:
> > - dump_gimple_call (buffer, as_a <gcall *> (gs), spc, flags);
> > + dump_gimple_call (buffer, as_a <const gcall *> (gs), spc,
> > flags);
> > break;
> >
> > case GIMPLE_COND:
> > - dump_gimple_cond (buffer, as_a <gcond *> (gs), spc, flags);
> > + dump_gimple_cond (buffer, as_a <const gcond *> (gs), spc,
> > flags);
> > break;
> >
> > case GIMPLE_LABEL:
> > - dump_gimple_label (buffer, as_a <glabel *> (gs), spc,
> > flags);
> > + dump_gimple_label (buffer, as_a <const glabel *> (gs), spc,
> > flags);
> > break;
> >
> > case GIMPLE_GOTO:
> > - dump_gimple_goto (buffer, as_a <ggoto *> (gs), spc, flags);
> > + dump_gimple_goto (buffer, as_a <const ggoto *> (gs), spc,
> > flags);
> > break;
> >
> > case GIMPLE_NOP:
> > @@ -2612,62 +2614,62 @@ pp_gimple_stmt_1 (pretty_printer *buffer,
> > gimple *gs, int spc,
> > break;
> >
> > case GIMPLE_RETURN:
> > - dump_gimple_return (buffer, as_a <greturn *> (gs), spc,
> > flags);
> > + dump_gimple_return (buffer, as_a <const greturn *> (gs),
> > spc, flags);
> > break;
> >
> > case GIMPLE_SWITCH:
> > - dump_gimple_switch (buffer, as_a <gswitch *> (gs), spc,
> > flags);
> > + dump_gimple_switch (buffer, as_a <const gswitch *> (gs),
> > spc, flags);
> > break;
> >
> > case GIMPLE_TRY:
> > - dump_gimple_try (buffer, as_a <gtry *> (gs), spc, flags);
> > + dump_gimple_try (buffer, as_a <const gtry *> (gs), spc,
> > flags);
> > break;
> >
> > case GIMPLE_PHI:
> > - dump_gimple_phi (buffer, as_a <gphi *> (gs), spc, false,
> > flags);
> > + dump_gimple_phi (buffer, as_a <const gphi *> (gs), spc,
> > false, flags);
> > break;
> >
> > case GIMPLE_OMP_PARALLEL:
> > - dump_gimple_omp_parallel (buffer, as_a <gomp_parallel *>
> > (gs), spc,
> > + dump_gimple_omp_parallel (buffer, as_a <const gomp_parallel
> > *> (gs), spc,
> > flags);
> > break;
> >
> > case GIMPLE_OMP_TASK:
> > - dump_gimple_omp_task (buffer, as_a <gomp_task *> (gs), spc,
> > flags);
> > + dump_gimple_omp_task (buffer, as_a <const gomp_task *> (gs),
> > spc, flags);
> > break;
> >
> > case GIMPLE_OMP_ATOMIC_LOAD:
> > - dump_gimple_omp_atomic_load (buffer, as_a <gomp_atomic_load
> > *> (gs),
> > + dump_gimple_omp_atomic_load (buffer, as_a <const
> > gomp_atomic_load *> (gs),
> > spc, flags);
> > break;
> >
> > case GIMPLE_OMP_ATOMIC_STORE:
> > dump_gimple_omp_atomic_store (buffer,
> > - as_a <gomp_atomic_store *>
> > (gs),
> > + as_a <const gomp_atomic_store
> > *> (gs),
> > spc, flags);
> > break;
> >
> > case GIMPLE_OMP_FOR:
> > - dump_gimple_omp_for (buffer, as_a <gomp_for *> (gs), spc,
> > flags);
> > + dump_gimple_omp_for (buffer, as_a <const gomp_for *> (gs),
> > spc, flags);
> > break;
> >
> > case GIMPLE_OMP_CONTINUE:
> > - dump_gimple_omp_continue (buffer, as_a <gomp_continue *>
> > (gs), spc,
> > + dump_gimple_omp_continue (buffer, as_a <const gomp_continue
> > *> (gs), spc,
> > flags);
> > break;
> >
> > case GIMPLE_OMP_SINGLE:
> > - dump_gimple_omp_single (buffer, as_a <gomp_single *> (gs),
> > spc,
> > + dump_gimple_omp_single (buffer, as_a <const gomp_single *>
> > (gs), spc,
> > flags);
> > break;
> >
> > case GIMPLE_OMP_TARGET:
> > - dump_gimple_omp_target (buffer, as_a <gomp_target *> (gs),
> > spc,
> > + dump_gimple_omp_target (buffer, as_a <const gomp_target *>
> > (gs), spc,
> > flags);
> > break;
> >
> > case GIMPLE_OMP_TEAMS:
> > - dump_gimple_omp_teams (buffer, as_a <gomp_teams *> (gs),
> > spc,
> > + dump_gimple_omp_teams (buffer, as_a <const gomp_teams *>
> > (gs), spc,
> > flags);
> > break;
> >
> > @@ -2676,7 +2678,7 @@ pp_gimple_stmt_1 (pretty_printer *buffer,
> > gimple *gs, int spc,
> > break;
> >
> > case GIMPLE_OMP_SECTIONS:
> > - dump_gimple_omp_sections (buffer, as_a <gomp_sections *>
> > (gs),
> > + dump_gimple_omp_sections (buffer, as_a <const gomp_sections
> > *> (gs),
> > spc, flags);
> > break;
> >
> > @@ -2695,49 +2697,50 @@ pp_gimple_stmt_1 (pretty_printer *buffer,
> > gimple *gs, int spc,
> > break;
> >
> > case GIMPLE_OMP_ORDERED:
> > - dump_gimple_omp_ordered (buffer, as_a <gomp_ordered *> (gs),
> > spc,
> > + dump_gimple_omp_ordered (buffer, as_a <const gomp_ordered *>
> > (gs), spc,
> > flags);
> > break;
> >
> > case GIMPLE_OMP_SCAN:
> > - dump_gimple_omp_scan (buffer, as_a <gomp_scan *> (gs), spc,
> > + dump_gimple_omp_scan (buffer, as_a <const gomp_scan *> (gs),
> > spc,
> > flags);
> > break;
> >
> > case GIMPLE_OMP_CRITICAL:
> > - dump_gimple_omp_critical (buffer, as_a <gomp_critical *>
> > (gs), spc,
> > + dump_gimple_omp_critical (buffer, as_a <const gomp_critical
> > *> (gs), spc,
> > flags);
> > break;
> >
> > case GIMPLE_CATCH:
> > - dump_gimple_catch (buffer, as_a <gcatch *> (gs), spc,
> > flags);
> > + dump_gimple_catch (buffer, as_a <const gcatch *> (gs), spc,
> > flags);
> > break;
> >
> > case GIMPLE_EH_FILTER:
> > - dump_gimple_eh_filter (buffer, as_a <geh_filter *> (gs),
> > spc, flags);
> > + dump_gimple_eh_filter (buffer, as_a <const geh_filter *>
> > (gs), spc,
> > + flags);
> > break;
> >
> > case GIMPLE_EH_MUST_NOT_THROW:
> > dump_gimple_eh_must_not_throw (buffer,
> > - as_a <geh_mnt *> (gs),
> > + as_a <const geh_mnt *> (gs),
> > spc, flags);
> > break;
> >
> > case GIMPLE_EH_ELSE:
> > - dump_gimple_eh_else (buffer, as_a <geh_else *> (gs), spc,
> > flags);
> > + dump_gimple_eh_else (buffer, as_a <const geh_else *> (gs),
> > spc, flags);
> > break;
> >
> > case GIMPLE_RESX:
> > - dump_gimple_resx (buffer, as_a <gresx *> (gs), spc, flags);
> > + dump_gimple_resx (buffer, as_a <const gresx *> (gs), spc,
> > flags);
> > break;
> >
> > case GIMPLE_EH_DISPATCH:
> > - dump_gimple_eh_dispatch (buffer, as_a <geh_dispatch *> (gs),
> > spc,
> > + dump_gimple_eh_dispatch (buffer, as_a <const geh_dispatch *>
> > (gs), spc,
> > flags);
> > break;
> >
> > case GIMPLE_DEBUG:
> > - dump_gimple_debug (buffer, as_a <gdebug *> (gs), spc,
> > flags);
> > + dump_gimple_debug (buffer, as_a <const gdebug *> (gs), spc,
> > flags);
> > break;
> >
> > case GIMPLE_PREDICT:
> > @@ -2751,7 +2754,7 @@ pp_gimple_stmt_1 (pretty_printer *buffer,
> > gimple *gs, int spc,
> > break;
> >
> > case GIMPLE_TRANSACTION:
> > - dump_gimple_transaction (buffer, as_a <gtransaction *> (gs),
> > spc,
> > + dump_gimple_transaction (buffer, as_a <const gtransaction *>
> > (gs), spc,
> > flags);
> > break;
> >
> > diff --git a/gcc/gimple-pretty-print.h b/gcc/gimple-pretty-print.h
> > index 8d8e105..186f2cf 100644
> > --- a/gcc/gimple-pretty-print.h
> > +++ b/gcc/gimple-pretty-print.h
> > @@ -31,7 +31,8 @@ extern void print_gimple_stmt (FILE *, gimple *,
> > int, dump_flags_t = TDF_NONE);
> > extern void debug (gimple &ref);
> > extern void debug (gimple *ptr);
> > extern void print_gimple_expr (FILE *, gimple *, int, dump_flags_t
> > = TDF_NONE);
> > -extern void pp_gimple_stmt_1 (pretty_printer *, gimple *, int,
> > dump_flags_t);
> > +extern void pp_gimple_stmt_1 (pretty_printer *, const gimple *,
> > int,
> > + dump_flags_t);
> > extern void gimple_dump_bb (FILE *, basic_block, int,
> > dump_flags_t);
> > extern void gimple_dump_bb_for_graph (pretty_printer *,
> > basic_block);
> > extern void dump_ssaname_info_to_file (FILE *, tree, int);
> > diff --git a/gcc/gimple.h b/gcc/gimple.h
> > index cf1f8da..10a4b8b 100644
> > --- a/gcc/gimple.h
> > +++ b/gcc/gimple.h
> > @@ -1017,6 +1017,14 @@ is_a_helper <gdebug *>::test (gimple *gs)
> > template <>
> > template <>
> > inline bool
> > +is_a_helper <const gdebug *>::test (const gimple *gs)
> > +{
> > + return gs->code == GIMPLE_DEBUG;
> > +}
> > +
> > +template <>
> > +template <>
> > +inline bool
> > is_a_helper <ggoto *>::test (gimple *gs)
> > {
> > return gs->code == GIMPLE_GOTO;
> > @@ -1025,6 +1033,14 @@ is_a_helper <ggoto *>::test (gimple *gs)
> > template <>
> > template <>
> > inline bool
> > +is_a_helper <const ggoto *>::test (const gimple *gs)
> > +{
> > + return gs->code == GIMPLE_GOTO;
> > +}
> > +
> > +template <>
> > +template <>
> > +inline bool
> > is_a_helper <glabel *>::test (gimple *gs)
> > {
> > return gs->code == GIMPLE_LABEL;
> > @@ -1033,6 +1049,14 @@ is_a_helper <glabel *>::test (gimple *gs)
> > template <>
> > template <>
> > inline bool
> > +is_a_helper <const glabel *>::test (const gimple *gs)
> > +{
> > + return gs->code == GIMPLE_LABEL;
> > +}
> > +
> > +template <>
> > +template <>
> > +inline bool
> > is_a_helper <gresx *>::test (gimple *gs)
> > {
> > return gs->code == GIMPLE_RESX;
> > @@ -1057,6 +1081,14 @@ is_a_helper <geh_else *>::test (gimple *gs)
> > template <>
> > template <>
> > inline bool
> > +is_a_helper <const geh_else *>::test (const gimple *gs)
> > +{
> > + return gs->code == GIMPLE_EH_ELSE;
> > +}
> > +
> > +template <>
> > +template <>
> > +inline bool
> > is_a_helper <geh_filter *>::test (gimple *gs)
> > {
> > return gs->code == GIMPLE_EH_FILTER;
> > @@ -1073,6 +1105,14 @@ is_a_helper <geh_mnt *>::test (gimple *gs)
> > template <>
> > template <>
> > inline bool
> > +is_a_helper <const geh_mnt *>::test (const gimple *gs)
> > +{
> > + return gs->code == GIMPLE_EH_MUST_NOT_THROW;
> > +}
> > +
> > +template <>
> > +template <>
> > +inline bool
> > is_a_helper <gomp_atomic_load *>::test (gimple *gs)
> > {
> > return gs->code == GIMPLE_OMP_ATOMIC_LOAD;
> > @@ -1219,6 +1259,14 @@ is_a_helper <gswitch *>::test (gimple *gs)
> > template <>
> > template <>
> > inline bool
> > +is_a_helper <const gswitch *>::test (const gimple *gs)
> > +{
> > + return gs->code == GIMPLE_SWITCH;
> > +}
> > +
> > +template <>
> > +template <>
> > +inline bool
> > is_a_helper <gtransaction *>::test (gimple *gs)
> > {
> > return gs->code == GIMPLE_TRANSACTION;
> > @@ -1235,6 +1283,14 @@ is_a_helper <gtry *>::test (gimple *gs)
> > template <>
> > template <>
> > inline bool
> > +is_a_helper <const gtry *>::test (const gimple *gs)
> > +{
> > + return gs->code == GIMPLE_TRY;
> > +}
> > +
> > +template <>
> > +template <>
> > +inline bool
> > is_a_helper <gimple_statement_wce *>::test (gimple *gs)
> > {
> > return gs->code == GIMPLE_WITH_CLEANUP_EXPR;
> > @@ -1429,6 +1485,14 @@ is_a_helper <const gphi *>::test (const
> > gimple *gs)
> > template <>
> > template <>
> > inline bool
> > +is_a_helper <const greturn *>::test (const gimple *gs)
> > +{
> > + return gs->code == GIMPLE_RETURN;
> > +}
> > +
> > +template <>
> > +template <>
> > +inline bool
> > is_a_helper <const gtransaction *>::test (const gimple *gs)
> > {
> > return gs->code == GIMPLE_TRANSACTION;
> > @@ -3254,7 +3318,7 @@ gimple_call_set_tail (gcall *s, bool tail_p)
> > /* Return true if GIMPLE_CALL S is marked as a tail call. */
> >
> > static inline bool
> > -gimple_call_tail_p (gcall *s)
> > +gimple_call_tail_p (const gcall *s)
> > {
> > return (s->subcode & GF_CALL_TAILCALL) != 0;
> > }
> > @@ -3296,7 +3360,7 @@ gimple_call_set_return_slot_opt (gcall *s,
> > bool return_slot_opt_p)
> > /* Return true if S is marked for return slot optimization. */
> >
> > static inline bool
> > -gimple_call_return_slot_opt_p (gcall *s)
> > +gimple_call_return_slot_opt_p (const gcall *s)
> > {
> > return (s->subcode & GF_CALL_RETURN_SLOT_OPT) != 0;
> > }
> > @@ -3341,7 +3405,7 @@ gimple_call_set_va_arg_pack (gcall *s, bool
> > pass_arg_pack_p)
> > argument pack in its argument list. */
> >
> > static inline bool
> > -gimple_call_va_arg_pack_p (gcall *s)
> > +gimple_call_va_arg_pack_p (const gcall *s)
> > {
> > return (s->subcode & GF_CALL_VA_ARG_PACK) != 0;
> > }
> > @@ -3443,6 +3507,13 @@ gimple_call_use_set (gcall *call_stmt)
> > return &call_stmt->call_used;
> > }
> >
> > +/* As above, but const. */
> > +
> > +static inline const pt_solution *
> > +gimple_call_use_set (const gcall *call_stmt)
> > +{
> > + return &call_stmt->call_used;
> > +}
> >
> > /* Return a pointer to the points-to solution for the set of call-
> > used
> > variables of the call CALL_STMT. */
> > @@ -3453,16 +3524,24 @@ gimple_call_clobber_set (gcall *call_stmt)
> > return &call_stmt->call_clobbered;
> > }
> >
> > +/* As above, but const. */
> > +
> > +static inline const pt_solution *
> > +gimple_call_clobber_set (const gcall *call_stmt)
> > +{
> > + return &call_stmt->call_clobbered;
> > +}
> > +
> >
> > /* Returns true if this is a GIMPLE_ASSIGN or a GIMPLE_CALL with a
> > non-NULL lhs. */
> >
> > static inline bool
> > -gimple_has_lhs (gimple *stmt)
> > +gimple_has_lhs (const gimple *stmt)
> > {
> > if (is_gimple_assign (stmt))
> > return true;
> > - if (gcall *call = dyn_cast <gcall *> (stmt))
> > + if (const gcall *call = dyn_cast <const gcall *> (stmt))
> > return gimple_call_lhs (call) != NULL_TREE;
> > return false;
> > }
> > @@ -3760,9 +3839,9 @@ gimple_bind_body_ptr (gbind *bind_stmt)
> > /* Return the GIMPLE sequence contained in the GIMPLE_BIND
> > statement GS. */
> >
> > static inline gimple_seq
> > -gimple_bind_body (gbind *gs)
> > +gimple_bind_body (const gbind *gs)
> > {
> > - return *gimple_bind_body_ptr (gs);
> > + return *gimple_bind_body_ptr (const_cast <gbind *> (gs));
> > }
> >
> >
> > @@ -4034,9 +4113,9 @@ gimple_catch_handler_ptr (gcatch *catch_stmt)
> > GIMPLE_CATCH statement CATCH_STMT. */
> >
> > static inline gimple_seq
> > -gimple_catch_handler (gcatch *catch_stmt)
> > +gimple_catch_handler (const gcatch *catch_stmt)
> > {
> > - return *gimple_catch_handler_ptr (catch_stmt);
> > + return *gimple_catch_handler_ptr (const_cast <gcatch *>
> > (catch_stmt));
> > }
> >
> >
> > @@ -4094,9 +4173,9 @@ gimple_eh_filter_failure_ptr (gimple *gs)
> > statement fails. */
> >
> > static inline gimple_seq
> > -gimple_eh_filter_failure (gimple *gs)
> > +gimple_eh_filter_failure (const gimple *gs)
> > {
> > - return *gimple_eh_filter_failure_ptr (gs);
> > + return *gimple_eh_filter_failure_ptr (const_cast <gimple *>
> > (gs));
> > }
> >
> >
> > @@ -4123,7 +4202,7 @@ gimple_eh_filter_set_failure (geh_filter
> > *eh_filter_stmt,
> > /* Get the function decl to be called by the MUST_NOT_THROW
> > region. */
> >
> > static inline tree
> > -gimple_eh_must_not_throw_fndecl (geh_mnt *eh_mnt_stmt)
> > +gimple_eh_must_not_throw_fndecl (const geh_mnt *eh_mnt_stmt)
> > {
> > return eh_mnt_stmt->fndecl;
> > }
> > @@ -4146,9 +4225,9 @@ gimple_eh_else_n_body_ptr (geh_else
> > *eh_else_stmt)
> > }
> >
> > static inline gimple_seq
> > -gimple_eh_else_n_body (geh_else *eh_else_stmt)
> > +gimple_eh_else_n_body (const geh_else *eh_else_stmt)
> > {
> > - return *gimple_eh_else_n_body_ptr (eh_else_stmt);
> > + return *gimple_eh_else_n_body_ptr (const_cast <geh_else *>
> > (eh_else_stmt));
> > }
> >
> > static inline gimple_seq *
> > @@ -4158,9 +4237,9 @@ gimple_eh_else_e_body_ptr (geh_else
> > *eh_else_stmt)
> > }
> >
> > static inline gimple_seq
> > -gimple_eh_else_e_body (geh_else *eh_else_stmt)
> > +gimple_eh_else_e_body (const geh_else *eh_else_stmt)
> > {
> > - return *gimple_eh_else_e_body_ptr (eh_else_stmt);
> > + return *gimple_eh_else_e_body_ptr (const_cast <geh_else *>
> > (eh_else_stmt));
> > }
> >
> > static inline void
> > @@ -4224,9 +4303,9 @@ gimple_try_eval_ptr (gimple *gs)
> > /* Return the sequence of statements used as the body for
> > GIMPLE_TRY GS. */
> >
> > static inline gimple_seq
> > -gimple_try_eval (gimple *gs)
> > +gimple_try_eval (const gimple *gs)
> > {
> > - return *gimple_try_eval_ptr (gs);
> > + return *gimple_try_eval_ptr (const_cast <gimple *> (gs));
> > }
> >
> >
> > @@ -4245,9 +4324,9 @@ gimple_try_cleanup_ptr (gimple *gs)
> > GIMPLE_TRY GS. */
> >
> > static inline gimple_seq
> > -gimple_try_cleanup (gimple *gs)
> > +gimple_try_cleanup (const gimple *gs)
> > {
> > - return *gimple_try_cleanup_ptr (gs);
> > + return *gimple_try_cleanup_ptr (const_cast <gimple *> (gs));
> > }
> >
> >
> > @@ -4406,6 +4485,13 @@ gimple_phi_arg (gphi *gs, unsigned index)
> > return &(gs->args[index]);
> > }
> >
> > +static inline const phi_arg_d *
> > +gimple_phi_arg (const gphi *gs, unsigned index)
> > +{
> > + gcc_gimple_checking_assert (index < gs->nargs);
> > + return &(gs->args[index]);
> > +}
> > +
> > static inline struct phi_arg_d *
> > gimple_phi_arg (gimple *gs, unsigned index)
> > {
> > @@ -4445,7 +4531,7 @@ phi_nodes_ptr (basic_block bb)
> > /* Return the tree operand for argument I of PHI node GS. */
> >
> > static inline tree
> > -gimple_phi_arg_def (gphi *gs, size_t index)
> > +gimple_phi_arg_def (const gphi *gs, size_t index)
> > {
> > return gimple_phi_arg (gs, index)->def;
> > }
> > @@ -4468,7 +4554,7 @@ gimple_phi_arg_def_ptr (gphi *phi, size_t
> > index)
> > /* Return the edge associated with argument I of phi node PHI. */
> >
> > static inline edge
> > -gimple_phi_arg_edge (gphi *phi, size_t i)
> > +gimple_phi_arg_edge (const gphi *phi, size_t i)
> > {
> > return EDGE_PRED (gimple_bb (phi), i);
> > }
> > @@ -4476,7 +4562,7 @@ gimple_phi_arg_edge (gphi *phi, size_t i)
> > /* Return the source location of gimple argument I of phi node
> > PHI. */
> >
> > static inline location_t
> > -gimple_phi_arg_location (gphi *phi, size_t i)
> > +gimple_phi_arg_location (const gphi *phi, size_t i)
> > {
> > return gimple_phi_arg (phi, i)->locus;
> > }
> > @@ -4500,7 +4586,7 @@ gimple_phi_arg_set_location (gphi *phi,
> > size_t i, location_t loc)
> > /* Return TRUE if argument I of phi node PHI has a location
> > record. */
> >
> > static inline bool
> > -gimple_phi_arg_has_location (gphi *phi, size_t i)
> > +gimple_phi_arg_has_location (const gphi *phi, size_t i)
> > {
> > return gimple_phi_arg_location (phi, i) != UNKNOWN_LOCATION;
> > }
> > @@ -4668,7 +4754,7 @@ gimple_debug_bind_p (const gimple *s)
> > /* Return the variable bound in a GIMPLE_DEBUG bind statement. */
> >
> > static inline tree
> > -gimple_debug_bind_get_var (gimple *dbg)
> > +gimple_debug_bind_get_var (const gimple *dbg)
> > {
> > GIMPLE_CHECK (dbg, GIMPLE_DEBUG);
> > gcc_gimple_checking_assert (gimple_debug_bind_p (dbg));
> > @@ -4679,7 +4765,7 @@ gimple_debug_bind_get_var (gimple *dbg)
> > statement. */
> >
> > static inline tree
> > -gimple_debug_bind_get_value (gimple *dbg)
> > +gimple_debug_bind_get_value (const gimple *dbg)
> > {
> > GIMPLE_CHECK (dbg, GIMPLE_DEBUG);
> > gcc_gimple_checking_assert (gimple_debug_bind_p (dbg));
> > @@ -4760,7 +4846,7 @@ gimple_debug_source_bind_p (const gimple *s)
> > /* Return the variable bound in a GIMPLE_DEBUG source bind
> > statement. */
> >
> > static inline tree
> > -gimple_debug_source_bind_get_var (gimple *dbg)
> > +gimple_debug_source_bind_get_var (const gimple *dbg)
> > {
> > GIMPLE_CHECK (dbg, GIMPLE_DEBUG);
> > gcc_gimple_checking_assert (gimple_debug_source_bind_p (dbg));
> > @@ -4771,7 +4857,7 @@ gimple_debug_source_bind_get_var (gimple
> > *dbg)
> > statement. */
> >
> > static inline tree
> > -gimple_debug_source_bind_get_value (gimple *dbg)
> > +gimple_debug_source_bind_get_value (const gimple *dbg)
> > {
> > GIMPLE_CHECK (dbg, GIMPLE_DEBUG);
> > gcc_gimple_checking_assert (gimple_debug_source_bind_p (dbg));
> > @@ -4872,9 +4958,9 @@ gimple_omp_body_ptr (gimple *gs)
> > /* Return the body for the OMP statement GS. */
> >
> > static inline gimple_seq
> > -gimple_omp_body (gimple *gs)
> > +gimple_omp_body (const gimple *gs)
> > {
> > - return *gimple_omp_body_ptr (gs);
> > + return *gimple_omp_body_ptr (const_cast <gimple *> (gs));
> > }
> >
> > /* Set BODY to be the body for the OMP statement GS. */
> > @@ -5139,9 +5225,9 @@ gimple_omp_for_set_clauses (gimple *gs, tree
> > clauses)
> > /* Get the collapse count of the OMP_FOR statement GS. */
> >
> > static inline size_t
> > -gimple_omp_for_collapse (gimple *gs)
> > +gimple_omp_for_collapse (const gimple *gs)
> > {
> > - gomp_for *omp_for_stmt = as_a <gomp_for *> (gs);
> > + const gomp_for *omp_for_stmt = as_a <const gomp_for *> (gs);
> > return omp_for_stmt->collapse;
> > }
> >
> > @@ -5316,9 +5402,9 @@ gimple_omp_for_pre_body_ptr (gimple *gs)
> > statement GS starts. */
> >
> > static inline gimple_seq
> > -gimple_omp_for_pre_body (gimple *gs)
> > +gimple_omp_for_pre_body (const gimple *gs)
> > {
> > - return *gimple_omp_for_pre_body_ptr (gs);
> > + return *gimple_omp_for_pre_body_ptr (const_cast <gimple *>
> > (gs));
> > }
> >
> >
> > @@ -6303,7 +6389,7 @@ gimple_transaction_body_ptr (gtransaction
> > *transaction_stmt)
> > /* Return the body for the GIMPLE_TRANSACTION statement
> > TRANSACTION_STMT. */
> >
> > static inline gimple_seq
> > -gimple_transaction_body (gtransaction *transaction_stmt)
> > +gimple_transaction_body (const gtransaction *transaction_stmt)
> > {
> > return transaction_stmt->body;
> > }
> > diff --git a/gcc/tree-eh.c b/gcc/tree-eh.c
> > index 54502e6..b996f49 100644
> > --- a/gcc/tree-eh.c
> > +++ b/gcc/tree-eh.c
> > @@ -139,19 +139,19 @@ remove_stmt_from_eh_lp (gimple *t)
> > statement is not recorded in the region table. */
> >
> > int
> > -lookup_stmt_eh_lp_fn (struct function *ifun, gimple *t)
> > +lookup_stmt_eh_lp_fn (struct function *ifun, const gimple *t)
> > {
> > if (ifun->eh->throw_stmt_table == NULL)
> > return 0;
> >
> > - int *lp_nr = ifun->eh->throw_stmt_table->get (t);
> > + int *lp_nr = ifun->eh->throw_stmt_table->get (const_cast <gimple
> > *> (t));
> > return lp_nr ? *lp_nr : 0;
> > }
> >
> > /* Likewise, but always use the current function. */
> >
> > int
> > -lookup_stmt_eh_lp (gimple *t)
> > +lookup_stmt_eh_lp (const gimple *t)
> > {
> > /* We can get called from initialized data when -fnon-call-
> > exceptions
> > is on; prevent crash. */
> > diff --git a/gcc/tree-eh.h b/gcc/tree-eh.h
> > index 511bb84..ca3b521 100644
> > --- a/gcc/tree-eh.h
> > +++ b/gcc/tree-eh.h
> > @@ -27,8 +27,8 @@ extern void using_eh_for_cleanups (void);
> > extern void add_stmt_to_eh_lp (gimple *, int);
> > extern bool remove_stmt_from_eh_lp_fn (struct function *, gimple
> > *);
> > extern bool remove_stmt_from_eh_lp (gimple *);
> > -extern int lookup_stmt_eh_lp_fn (struct function *, gimple *);
> > -extern int lookup_stmt_eh_lp (gimple *);
> > +extern int lookup_stmt_eh_lp_fn (struct function *, const gimple
> > *);
> > +extern int lookup_stmt_eh_lp (const gimple *);
> > extern bool make_eh_dispatch_edges (geh_dispatch *);
> > extern void make_eh_edges (gimple *);
> > extern edge redirect_eh_edge (edge, basic_block);
> > diff --git a/gcc/tree-ssa-alias.h b/gcc/tree-ssa-alias.h
> > index 6d72c2f..de85312 100644
> > --- a/gcc/tree-ssa-alias.h
> > +++ b/gcc/tree-ssa-alias.h
> > @@ -162,7 +162,7 @@ extern void dump_alias_stats (FILE *);
> >
> > /* In tree-ssa-structalias.c */
> > extern unsigned int compute_may_aliases (void);
> > -extern bool pt_solution_empty_p (struct pt_solution *);
> > +extern bool pt_solution_empty_p (const pt_solution *);
> > extern bool pt_solution_singleton_or_null_p (struct pt_solution *,
> > unsigned *);
> > extern bool pt_solution_includes_global (struct pt_solution *);
> > extern bool pt_solution_includes (struct pt_solution *,
> > const_tree);
> > diff --git a/gcc/tree-ssa-structalias.c b/gcc/tree-ssa-
> > structalias.c
> > index 75c6fae..b248dfa 100644
> > --- a/gcc/tree-ssa-structalias.c
> > +++ b/gcc/tree-ssa-structalias.c
> > @@ -6801,7 +6801,7 @@ pt_solution_ior_into (struct pt_solution
> > *dest, struct pt_solution *src)
> > /* Return true if the points-to solution *PT is empty. */
> >
> > bool
> > -pt_solution_empty_p (struct pt_solution *pt)
> > +pt_solution_empty_p (const pt_solution *pt)
> > {
> > if (pt->anything
> > || pt->nonlocal)
> > --
> > 1.8.5.3
> >
