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dwarf2out.h (dwarf2out_frame_debug_init): Declare.

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* dwarf2out.h (dwarf2out_frame_debug_init): Declare.
	* dwarf2out.c (dwarf2out_frame_debug_init): New function, broken
	out of ...
	(dwarf2out_frame_debug): ... here. Don't handle a NULL argument.
	* final.c (final_start_function): Call the new function rather
	than using a NULL argument for dwarf2out_frame_debug.

From-SVN: r171839
This commit is contained in:
Bernd Schmidt 2011-04-01 17:35:13 +00:00 committed by Bernd Schmidt
parent 1ca1dad5f1
commit 722279e41f
4 changed files with 46 additions and 34 deletions
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9
gcc/ChangeLog
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@ -1,3 +1,12 @@
2011-04-01 Bernd Schmidt <bernds@codesourcery.com>
* dwarf2out.h (dwarf2out_frame_debug_init): Declare.
* dwarf2out.c (dwarf2out_frame_debug_init): New function, broken
out of ...
(dwarf2out_frame_debug): ... here. Don't handle a NULL argument.
* final.c (final_start_function): Call the new function rather
than using a NULL argument for dwarf2out_frame_debug.
2011-04-01 Ulrich Weigand <Ulrich.Weigand@de.ibm.com>
* config/spu/t-spu-elf (dp-bit.c): Use > instead of >>.

66
gcc/dwarf2out.c
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@ -2788,38 +2788,6 @@ dwarf2out_frame_debug (rtx insn, bool after_p)
rtx note, n;
bool handled_one = false;
if (insn == NULL_RTX)
{
size_t i;
/* Flush any queued register saves. */
dwarf2out_flush_queued_reg_saves ();
/* Set up state for generating call frame debug info. */
lookup_cfa (&cfa);
gcc_assert (cfa.reg
== (unsigned long)DWARF_FRAME_REGNUM (STACK_POINTER_REGNUM));
cfa.reg = STACK_POINTER_REGNUM;
cfa_store = cfa;
cfa_temp.reg = -1;
cfa_temp.offset = 0;
for (i = 0; i < num_regs_saved_in_regs; i++)
{
regs_saved_in_regs[i].orig_reg = NULL_RTX;
regs_saved_in_regs[i].saved_in_reg = NULL_RTX;
}
num_regs_saved_in_regs = 0;
if (barrier_args_size)
{
XDELETEVEC (barrier_args_size);
barrier_args_size = NULL;
}
return;
}
if (!NONJUMP_INSN_P (insn) || clobbers_queued_reg_save (insn))
dwarf2out_flush_queued_reg_saves ();
@ -2937,6 +2905,40 @@ dwarf2out_frame_debug (rtx insn, bool after_p)
dwarf2out_flush_queued_reg_saves ();
}
/* Called once at the start of final to initialize some data for the
current function. */
void
dwarf2out_frame_debug_init (void)
{
size_t i;
/* Flush any queued register saves. */
dwarf2out_flush_queued_reg_saves ();
/* Set up state for generating call frame debug info. */
lookup_cfa (&cfa);
gcc_assert (cfa.reg
== (unsigned long)DWARF_FRAME_REGNUM (STACK_POINTER_REGNUM));
cfa.reg = STACK_POINTER_REGNUM;
cfa_store = cfa;
cfa_temp.reg = -1;
cfa_temp.offset = 0;
for (i = 0; i < num_regs_saved_in_regs; i++)
{
regs_saved_in_regs[i].orig_reg = NULL_RTX;
regs_saved_in_regs[i].saved_in_reg = NULL_RTX;
}
num_regs_saved_in_regs = 0;
if (barrier_args_size)
{
XDELETEVEC (barrier_args_size);
barrier_args_size = NULL;
}
}
/* Determine if we need to save and restore CFI information around this
epilogue. If SIBCALL is true, then this is a sibcall epilogue. If
we do need to save/restore, then emit the save now, and insert a

3
gcc/dwarf2out.h
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@ -1,5 +1,5 @@
/* dwarf2out.h - Various declarations for functions found in dwarf2out.c
Copyright (C) 1998, 1999, 2000, 2003, 2007, 2010
Copyright (C) 1998, 1999, 2000, 2003, 2007, 2010, 2011
Free Software Foundation, Inc.
This file is part of GCC.
@ -20,6 +20,7 @@ along with GCC; see the file COPYING3. If not see
extern void dwarf2out_decl (tree);
extern void dwarf2out_frame_debug (rtx, bool);
extern void dwarf2out_frame_debug_init (void);
extern void dwarf2out_cfi_begin_epilogue (rtx);
extern void dwarf2out_frame_debug_restore_state (void);
extern void dwarf2out_flush_queued_reg_saves (void);

2
gcc/final.c
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@ -1561,7 +1561,7 @@ final_start_function (rtx first ATTRIBUTE_UNUSED, FILE *file,
#if defined (HAVE_prologue)
if (dwarf2out_do_frame ())
dwarf2out_frame_debug (NULL_RTX, false);
dwarf2out_frame_debug_init ();
#endif
/* If debugging, assign block numbers to all of the blocks in this