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arm.c (arm_unwind_emit): Suppress unused unwinding annotations.

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2008-03-15  Paul Brook  <paul@codesourcery.com>

	gcc/
	* config/arm/arm.c (arm_unwind_emit): Suppress unused unwinding
	annotations.
	(arm_output_fn_unwind): Mark functions that can not be unwound.

From-SVN: r133266
This commit is contained in:
Paul Brook 2008-03-16 00:58:57 +00:00 committed by Paul Brook
parent 393ab25284
commit 80efdb6af5
2 changed files with 22 additions and 1 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2008-03-15 Paul Brook <paul@codesourcery.com>
* config/arm/arm.c (arm_unwind_emit): Suppress unused unwinding
annotations.
(arm_output_fn_unwind): Mark functions that can not be unwound.
2008-03-15 Paul Brook <paul@codesourcery.com>
* config/arm/arm.c (arm_rtx_costs_1): Add costs for ARMv6 value

17
gcc/config/arm/arm.c
View File

@ -18633,6 +18633,11 @@ arm_unwind_emit (FILE * asm_out_file, rtx insn)
if (!ARM_EABI_UNWIND_TABLES)
return;
if (!(flag_unwind_tables || cfun->uses_eh_lsda)
&& (TREE_NOTHROW (current_function_decl)
|| cfun->all_throwers_are_sibcalls))
return;
if (GET_CODE (insn) == NOTE || !RTX_FRAME_RELATED_P (insn))
return;
@ -18713,7 +18718,17 @@ arm_output_fn_unwind (FILE * f, bool prologue)
if (prologue)
fputs ("\t.fnstart\n", f);
else
fputs ("\t.fnend\n", f);
{
/* If this function will never be unwound, then mark it as such.
The came condition is used in arm_unwind_emit to suppress
the frame annotations. */
if (!(flag_unwind_tables || cfun->uses_eh_lsda)
&& (TREE_NOTHROW (current_function_decl)
|| cfun->all_throwers_are_sibcalls))
fputs("\t.cantunwind\n", f);
fputs ("\t.fnend\n", f);
}
}
static bool