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author | Alexandre Oliva <aoliva@redhat.com> | 2017-12-12 02:15:00 +0000 |
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committer | Alexandre Oliva <aoliva@gcc.gnu.org> | 2017-12-12 02:15:00 +0000 |
commit | 36f52e8f0812546e6cb533b384b29f56570624ff (patch) | |
tree | 8f18f4e4b339c059cbde84a88ab800662fff1c39 /gcc/gimple.h | |
parent | f40dd64636249153a3d03be5c41bbaf9c91fad6c (diff) | |
download | gcc-36f52e8f0812546e6cb533b384b29f56570624ff.zip gcc-36f52e8f0812546e6cb533b384b29f56570624ff.tar.gz gcc-36f52e8f0812546e6cb533b384b29f56570624ff.tar.bz2 |
[SFN] boilerplate changes in preparation to introduce nonbind markers
This patch introduces a number of new macros and functions that will
be used to distinguish between different kinds of debug stmts, insns
and notes, namely, preexisting debug bind ones and to-be-introduced
nonbind markers.
In a seemingly mechanical way, it adjusts several uses of the macros
and functions, so that they refer to narrower categories when
appropriate.
These changes, by themselves, should not have any visible effect in
the compiler behavior, since the upcoming debug markers are never
created with this patch alone.
for gcc/ChangeLog
* gimple.h (enum gimple_debug_subcode): Add
GIMPLE_DEBUG_BEGIN_STMT.
(gimple_debug_begin_stmt_p): New.
(gimple_debug_nonbind_marker_p): New.
* tree.h (MAY_HAVE_DEBUG_MARKER_STMTS): New.
(MAY_HAVE_DEBUG_BIND_STMTS): Renamed from....
(MAY_HAVE_DEBUG_STMTS): ... this. Check both.
* insn-notes.def (BEGIN_STMT): New.
* rtl.h (MAY_HAVE_DEBUG_MARKER_INSNS): New.
(MAY_HAVE_DEBUG_BIND_INSNS): Renamed from....
(MAY_HAVE_DEBUG_INSNS): ... this. Check both.
(NOTE_MARKER_LOCATION, NOTE_MARKER_P): New.
(DEBUG_BIND_INSN_P, DEBUG_MARKER_INSN_P): New.
(INSN_DEBUG_MARKER_KIND): New.
(GEN_RTX_DEBUG_MARKER_BEGIN_STMT_PAT): New.
(INSN_VAR_LOCATION): Check for VAR_LOCATION.
(INSN_VAR_LOCATION_PTR): New.
* cfgexpand.c (expand_debug_locations): Handle debug bind insns
only.
(expand_gimple_basic_block): Likewise. Emit debug temps for TER
deps only if debug bind insns are enabled.
(pass_expand::execute): Avoid deep TER and expand
debug locations for debug bind insns only.
* cgraph.c (cgraph_edge::redirect_call_stmt_to_callee): Narrow
debug stmts special handling down to debug bind stmts.
* combine.c (try_combine): Narrow debug insns special handling
down to debug bind insns.
* cse.c (delete_trivially_dead_insns): Handle debug bindings.
Narrow debug insns preexisting special handling down to debug
bind insns.
* dce.c (rest_of_handle_ud_dce): Narrow debug insns special
handling down to debug bind insns.
* function.c (instantiate_virtual_regs): Skip debug markers,
adjust handling of debug binds.
* gimple-ssa-backprop.c (backprop::prepare_change): Try debug
temp insertion iff MAY_HAVE_DEBUG_BIND_STMTS.
* haifa-sched.c (schedule_insn): Narrow special handling of debug
insns to debug bind insns.
* ipa-param-manipulation.c (ipa_modify_call_arguments): Narrow
special handling of debug stmts to debug bind stmts.
* ipa-split.c (split_function): Likewise.
* ira.c (combine_and_move_insns): Adjust debug bind insns only.
* loop-unroll.c (apply_opt_in_copies): Adjust tests on bind
debug insns.
* reg-stack.c (convert_regs_1): Use DEBUG_BIND_INSN_P.
* regrename.c (build_def_use): Likewise.
* regcprop.c (copyprop_hardreg_forward_1): Likewise.
(pass_cprop_hardreg): Narrow special casing of debug insns to
debug bind insns.
* regstat.c (regstat_init_n_sets_and_refs): Likewise.
* reload1.c (reload): Likewise.
* sese.c (sese_insert_phis_for_liveouts): Narrow special
casing of debug stmts to debug bind stmts.
* shrink-wrap.c (move_insn_for_shrink_wrap): Likewise.
* ssa-iterators.h (num_imm_uses): Likewise.
* tree-cfg.c (gimple_merge_blocks): Narrow special casing of
debug stmts to debug bind stmts.
* tree-inline.c (tree_function_versioning): Narrow special casing
of debug stmts to debug bind stmts.
* tree-loop-distribution.c (generate_loops_for_partition):
Narrow special casing of debug stmts to debug bind stmts.
* tree-sra.c (analyze_access_subtree): Narrow special casing
of debug stmts to debug bind stmts.
* tree-ssa-dce.c (remove_dead_stmt): Narrow special casing of debug
stmts to debug bind stmts.
* tree-ssa-loop-ivopt.c (remove_unused_ivs): Narrow special
casing of debug stmts to debug bind stmts.
* tree-ssa-reassoc.c (reassoc_remove_stmt): Likewise.
* tree-ssa-tail-merge.c (tail_merge_optimize): Narrow special
casing of debug stmts to debug bind stmts.
* tree-ssa-threadedge.c (propagate_threaded_block_debug_info):
Likewise.
* tree-ssa.c (flush_pending_stmts): Narrow special casing of
debug stmts to debug bind stmts.
(gimple_replace_ssa_lhs): Likewise.
(insert_debug_temp_for_var_def): Likewise.
(insert_debug_temps_for_defs): Likewise.
(reset_debug_uses): Likewise.
* tree-ssanames.c (release_ssa_name_fn): Likewise.
* tree-vect-loop-manip.c (adjust_debug_stmts_now): Likewise.
(adjust_debug_stmts): Likewise.
(adjust_phi_and_debug_stmts): Likewise.
(vect_do_peeling): Likewise.
* tree-vect-loop.c (vect_transform_loop): Likewise.
* valtrack.c (propagate_for_debug): Use BIND_DEBUG_INSN_P.
* var-tracking.c (adjust_mems): Narrow special casing of debug
insns to debug bind insns.
(dv_onepart_p, dataflow_set_clar_at_call, use_type): Likewise.
(compute_bb_dataflow, vt_find_locations): Likewise.
(vt_expand_loc, emit_notes_for_changes): Likewise.
(vt_init_cfa_base): Likewise.
(vt_emit_notes): Likewise.
(vt_initialize): Likewise.
(vt_finalize): Likewise.
From-SVN: r255565
Diffstat (limited to 'gcc/gimple.h')
-rw-r--r-- | gcc/gimple.h | 31 |
1 files changed, 26 insertions, 5 deletions
diff --git a/gcc/gimple.h b/gcc/gimple.h index 0fcdd05..d34aa14 100644 --- a/gcc/gimple.h +++ b/gcc/gimple.h @@ -197,13 +197,12 @@ enum gf_mask { GF_PREDICT_TAKEN = 1 << 15 }; -/* Currently, there are only two types 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. */ +/* This subcode tells apart different kinds of stmts that are not used + for codegen, but rather to retain debug information. */ enum gimple_debug_subcode { GIMPLE_DEBUG_BIND = 0, - GIMPLE_DEBUG_SOURCE_BIND = 1 + GIMPLE_DEBUG_SOURCE_BIND = 1, + GIMPLE_DEBUG_BEGIN_STMT = 2 }; /* Masks for selecting a pass local flag (PLF) to work on. These @@ -4757,6 +4756,28 @@ gimple_debug_source_bind_set_value (gimple *dbg, tree value) gimple_set_op (dbg, 1, value); } +/* Return true if S is a GIMPLE_DEBUG BEGIN_STMT statement. */ + +static inline bool +gimple_debug_begin_stmt_p (const gimple *s) +{ + if (is_gimple_debug (s)) + return s->subcode == GIMPLE_DEBUG_BEGIN_STMT; + + return false; +} + +/* Return true if S is a GIMPLE_DEBUG non-binding marker statement. */ + +static inline bool +gimple_debug_nonbind_marker_p (const gimple *s) +{ + if (is_gimple_debug (s)) + return s->subcode == GIMPLE_DEBUG_BEGIN_STMT; + + return false; +} + /* Return the line number for EXPR, or return -1 if we have no line number information for it. */ static inline int |