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re PR debug/54793 (the location of a formal_parameter is not started from a function entry with -mfentry)

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PR debug/54793
	* final.c (need_profile_function): New variable.
	(final_start_function): Drop ATTRIBUTE_UNUSED from first argument.
	If first of NOTE_INSN_BASIC_BLOCK or NOTE_INSN_FUNCTION_BEG
	is only preceeded by NOTE_INSN_VAR_LOCATION or NOTE_INSN_DELETED
	notes, targetm.asm_out.function_prologue doesn't emit anything,
	HAVE_prologue and profiler should be emitted before prologue,
	set need_profile_function instead of emitting it.
	(final_scan_insn): If need_profile_function, emit
	profile_function on the first NOTE_INSN_BASIC_BLOCK or
	NOTE_INSN_FUNCTION_BEG note.

From-SVN: r195669
This commit is contained in:
Jakub Jelinek 2013-02-01 17:54:14 +01:00
parent ff2a9d88b4
commit ddd84654d9
2 changed files with 68 additions and 3 deletions
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16
gcc/ChangeLog
View file

@ -1,4 +1,18 @@
2013-02-01 Richard Henderson <rth@redhat.com>
2013-02-01 Jakub Jelinek <jakub@redhat.com>
PR debug/54793
* final.c (need_profile_function): New variable.
(final_start_function): Drop ATTRIBUTE_UNUSED from first argument.
If first of NOTE_INSN_BASIC_BLOCK or NOTE_INSN_FUNCTION_BEG
is only preceeded by NOTE_INSN_VAR_LOCATION or NOTE_INSN_DELETED
notes, targetm.asm_out.function_prologue doesn't emit anything,
HAVE_prologue and profiler should be emitted before prologue,
set need_profile_function instead of emitting it.
(final_scan_insn): If need_profile_function, emit
profile_function on the first NOTE_INSN_BASIC_BLOCK or
NOTE_INSN_FUNCTION_BEG note.
2013-02-01 Richard Henderson <rth@redhat.com>
* config/rs6000/rs6000.md (smulditi3): New.
(umulditi3): New.

55
gcc/final.c
View file

@ -200,6 +200,9 @@ rtx current_insn_predicate;
/* True if printing into -fdump-final-insns= dump. */
bool final_insns_dump_p;
/* True if profile_function should be called, but hasn't been called yet. */
static bool need_profile_function;
static int asm_insn_count (rtx);
static void profile_function (FILE *);
static void profile_after_prologue (FILE *);
@ -1668,13 +1671,15 @@ reemit_insn_block_notes (void)
test and compare insns. */
void
final_start_function (rtx first ATTRIBUTE_UNUSED, FILE *file,
final_start_function (rtx first, FILE *file,
int optimize_p ATTRIBUTE_UNUSED)
{
block_depth = 0;
this_is_asm_operands = 0;
need_profile_function = false;
last_filename = LOCATION_FILE (prologue_location);
last_linenum = LOCATION_LINE (prologue_location);
last_discriminator = discriminator = 0;
@ -1695,7 +1700,41 @@ final_start_function (rtx first ATTRIBUTE_UNUSED, FILE *file,
/* The Sun386i and perhaps other machines don't work right
if the profiling code comes after the prologue. */
if (targetm.profile_before_prologue () && crtl->profile)
profile_function (file);
{
if (targetm.asm_out.function_prologue
== default_function_pro_epilogue
#ifdef HAVE_prologue
&& HAVE_prologue
#endif
)
{
rtx insn;
for (insn = first; insn; insn = NEXT_INSN (insn))
if (!NOTE_P (insn))
{
insn = NULL_RTX;
break;
}
else if (NOTE_KIND (insn) == NOTE_INSN_BASIC_BLOCK
|| NOTE_KIND (insn) == NOTE_INSN_FUNCTION_BEG)
break;
else if (NOTE_KIND (insn) == NOTE_INSN_DELETED
|| NOTE_KIND (insn) == NOTE_INSN_VAR_LOCATION)
continue;
else
{
insn = NULL_RTX;
break;
}
if (insn)
need_profile_function = true;
else
profile_function (file);
}
else
profile_function (file);
}
/* If debugging, assign block numbers to all of the blocks in this
function. */
@ -2075,6 +2114,12 @@ final_scan_insn (rtx insn, FILE *file, int optimize_p ATTRIBUTE_UNUSED,
break;
case NOTE_INSN_BASIC_BLOCK:
if (need_profile_function)
{
profile_function (asm_out_file);
need_profile_function = false;
}
if (targetm.asm_out.unwind_emit)
targetm.asm_out.unwind_emit (asm_out_file, insn);
@ -2130,6 +2175,12 @@ final_scan_insn (rtx insn, FILE *file, int optimize_p ATTRIBUTE_UNUSED,
break;
case NOTE_INSN_FUNCTION_BEG:
if (need_profile_function)
{
profile_function (asm_out_file);
need_profile_function = false;
}
app_disable ();
if (!DECL_IGNORED_P (current_function_decl))
debug_hooks->end_prologue (last_linenum, last_filename);