![]() PR debug/43176 * Makefile.in (var-tracking.o): Depend on pointer-set.h. * cselib.c (struct expand_value_data): Add dummy field. (cselib_expand_value_rtx, cselib_expand_value_rtx_cb): Initialize dummy to false. (cselib_dummy_expand_value_rtx_cb): New function. (cselib_expand_value_rtx_1): If evd->dummy is true, don't allocate any rtl. * cselib.h (cselib_dummy_expand_value_rtx_cb): New prototype. * var-tracking.c: Include pointer-set.h. (variable): Change n_var_parts to char from int. Add cur_loc_changed and in_changed_variables fields. (variable_canonicalize): Remove. (shared_var_p): New inline function. (unshare_variable): Maintain cur_loc_changed and in_changed_variables fields. If var was in changed_variables, replace it there with new_var. Just copy cur_loc instead of resetting it to something else. (variable_union): Don't recompute cur_loc. Use shared_var_p. (dataflow_set_union): Don't call variable_canonicalize. (loc_cmp): If both x and y are DEBUG_EXPRs, compare uids of their DEBUG_EXPR_TREE_DECLs. (canonicalize_loc_order_check): Verify that cur_loc is NULL and in_changed_variables and cur_loc_changed is false. (variable_merge_over_cur): Clear cur_loc, in_changed_variables and cur_loc_changed. Don't update cur_loc here. (variable_merge_over_src): Don't call variable_canonicalize. (dataflow_set_preserve_mem_locs): Use shared_var_p. When removing loc that is equal to cur_loc, clear cur_loc, set cur_loc_changed and ensure variable_was_changed is called. (dataflow_set_remove_mem_locs): Use shared_var_p. Only compare pointers in cur_loc check, if it is equal to loc, clear cur_loc and set cur_loc_changed. Don't recompute cur_loc here. (variable_different_p): Remove compare_current_location argument, don't compare cur_loc. (dataflow_set_different_1): Adjust variable_different_p caller. (variable_was_changed): If dv had some var in changed_variables already, reset in_changed_variables flag for it and propagate cur_loc_changed over to the new variable. On empty var always set cur_loc_changed. Set in_changed_variables on whatever var is added to changed_variables. (set_slot_part): Clear cur_loc_changed and in_changed_variables. Use shared_var_p. When removing loc that is equal to cur_loc, clear cur_loc and set cur_loc_changed. If cur_loc is NULL at the end, don't set it to something else, just call variable_was_changed. (delete_slot_part): Use shared_var_p. When cur_loc equals to loc being removed, clear cur_loc and set cur_loc_changed. Set cur_loc_changed if all locations have been removed. (struct expand_loc_callback_data): New type. (vt_expand_loc_callback): Add dummy mode in which no rtxes are allocated. Always create SUBREGs if simplify_subreg failed. Prefer to use cur_loc, when that fails and still in changed_variables (and seen first time) recompute it. Set cur_loc_changed of variables which had to change cur_loc and compute elcd->cur_loc_changed if any of the subexpressions used had to change cur_loc. (vt_expand_loc): Adjust to pass arguments in expand_loc_callback_data structure. (vt_expand_loc_dummy): New function. (emitted_notes): New variable. (emit_note_insn_var_location): For VALUEs and DEBUG_EXPR_DECLs that weren't used for any other decl in current emit_notes_for_changes call call vt_expand_loc_dummy to update cur_loc. For -fno-var-tracking-assignments, set cur_loc to first loc_chain location if NULL before. Always use just cur_loc instead of first loc_chain location. When cur_loc_changed is false, when not --enable-checking=rtl just don't emit any note. When rtl checking, compute the note and assert it is the same as previous note. Clear cur_loc_changed and in_changed_variables at the end before removing from changed_variables. (check_changed_vars_3): New function. (emit_notes_for_changes): Traverse changed_vars to call check_changed_vars_3 on each changed var. (emit_notes_for_differences_1): Clear cur_loc_changed and in_changed_variables. Recompute cur_loc of new_var. (emit_notes_for_differences_2): Clear cur_loc if new variable appears. (vt_emit_notes): Initialize and destroy emitted_notes. From-SVN: r157264 |
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boehm-gc | ||
config | ||
contrib | ||
fixincludes | ||
gcc | ||
gnattools | ||
include | ||
INSTALL | ||
intl | ||
libada | ||
libcpp | ||
libdecnumber | ||
libffi | ||
libgcc | ||
libgfortran | ||
libgomp | ||
libiberty | ||
libjava | ||
libmudflap | ||
libobjc | ||
libssp | ||
libstdc++-v3 | ||
lto-plugin | ||
maintainer-scripts | ||
zlib | ||
ABOUT-NLS | ||
ChangeLog | ||
ChangeLog.tree-ssa | ||
compile | ||
config-ml.in | ||
config.guess | ||
config.rpath | ||
config.sub | ||
configure | ||
configure.ac | ||
COPYING | ||
COPYING3 | ||
COPYING3.LIB | ||
COPYING.LIB | ||
COPYING.RUNTIME | ||
depcomp | ||
install-sh | ||
libtool-ldflags | ||
libtool.m4 | ||
lt~obsolete.m4 | ||
ltgcc.m4 | ||
ltmain.sh | ||
ltoptions.m4 | ||
ltsugar.m4 | ||
ltversion.m4 | ||
MAINTAINERS | ||
Makefile.def | ||
Makefile.in | ||
Makefile.tpl | ||
missing | ||
mkdep | ||
mkinstalldirs | ||
move-if-change | ||
README | ||
symlink-tree | ||
ylwrap |
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