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| author | ccoutant <ccoutant@138bc75d-0d04-0410-961f-82ee72b054a4> | 2009-10-08 21:00:04 +0000 |
|---|---|---|
| committer | ccoutant <ccoutant@138bc75d-0d04-0410-961f-82ee72b054a4> | 2009-10-08 21:00:04 +0000 |
| commit | d907ec515e45bd1c853b50fd0f20ffa9908c5473 (patch) | |
| tree | d4e268cc74aaa313626c0a3a838960f89e919d48 /gcc/calls.c | |
| parent | 209e5acf6b5b9ae6ad8936181d4f3d6ee448ba29 (diff) | |
| download | gcc-d907ec515e45bd1c853b50fd0f20ffa9908c5473.tar.gz | |
gcc/ChangeLog:
Add support for debugging with ICF (Identical Code Folding).
* calls.c (debug.h): New #include.
(emit_call_1): Call virtual_call_token debug hook.
* common.opt (-fenable-icf-debug): New option.
* dwarf2out.c (dwarf2_debug_hooks): Add entries for new hooks (two
locations in the source).
(poc_label_num): New variable.
(dcall_entry, vcall_entry): New typedefs.
(dcall_table, vcall_table): New variables.
(struct vcall_insn): New type.
(vcall_insn_table): New variable.
(DEBUG_DCALL_SECTION, DEBUG_VCALL_SECTION): New macros.
(size_of_dcall_table): New function.
(output_dcall_table): New function.
(size_of_vcall_table): New function.
(output_vcall_table): New function.
(dwarf2out_direct_call): New function.
(vcall_insn_table_hash): New function.
(vcall_insn_table_eq): New function.
(dwarf2out_virtual_call_token): New function.
(dwarf2out_virtual_call): New function.
(dwarf2out_init): Allocate new tables and sections.
(prune_unused_types): Mark DIEs referenced from direct call table.
(dwarf2out_finish): Output direct and virtual call tables.
* final.c (final_scan_insn): Call direct_call and virtual_call
debug hooks.
* debug.h (struct gcc_debug_hooks): Add direct_call,
virtual_call_token, virtual_call hooks.
(debug_nothing_uid): New function.
* debug.c (do_nothing_debug_hooks): Add dummy entries for new hooks.
(debug_nothing_uid): New function.
* dbxout.c (dbx_debug_hooks): Add dummy entries for new hooks.
* sdbout.c (sdb_debug_hooks): Likewise.
* vmsdbgout.c (vmsdbg_debug_hooks): Likewise.
* doc/invoke.texi (-fenable-icf-debug): New option.
gcc/testsuite/ChangeLog:
Add support for debugging with ICF (Identical Code Folding).
* g++.dg/debug/dwarf2/icf.C: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@152577 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/calls.c')
| -rw-r--r-- | gcc/calls.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/calls.c b/gcc/calls.c index f28fb513ce2..49e576e94c5 100644 --- a/gcc/calls.c +++ b/gcc/calls.c @@ -39,6 +39,7 @@ along with GCC; see the file COPYING3. If not see #include "sbitmap.h" #include "langhooks.h" #include "target.h" +#include "debug.h" #include "cgraph.h" #include "except.h" #include "dbgcnt.h" @@ -394,6 +395,11 @@ emit_call_1 (rtx funexp, tree fntree ATTRIBUTE_UNUSED, tree fndecl ATTRIBUTE_UNU SIBLING_CALL_P (call_insn) = ((ecf_flags & ECF_SIBCALL) != 0); + /* Record debug information for virtual calls. */ + if (flag_enable_icf_debug && fndecl == NULL) + (*debug_hooks->virtual_call_token) (CALL_EXPR_FN (fntree), + INSN_UID (call_insn)); + /* Restore this now, so that we do defer pops for this call's args if the context of the call as a whole permits. */ inhibit_defer_pop = old_inhibit_defer_pop; |