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arm.c (return_used_this_function): Remove.

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2009-04-13  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

       * config/arm/arm.c (return_used_this_function): Remove.
       (arm_output_function_prologue): Remove use of
	return_used_this_function.
       (output_return_instruction): Replace use of
	return_used_this_function
	by cfun->machine->return_used_this_function.
       (arm_output_epilogue): Likewise.
       (arm_output_function_epilogue): Likewise.
       (thumb_unexpanded_epilogue): Likewise.
       * config/arm/arm.h (struct machine_function):
	New member return_used_this_function.

From-SVN: r145997
This commit is contained in:
Ramana Radhakrishnan 2009-04-13 08:25:55 +00:00 committed by Ramana Radhakrishnan
parent ae5cc01695
commit 934c2060de
3 changed files with 23 additions and 10 deletions
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14
gcc/ChangeLog
View File

@ -1,3 +1,17 @@
2009-04-13 Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>
* config/arm/arm.c (return_used_this_function): Remove.
(arm_output_function_prologue): Remove use of
return_used_this_function.
(output_return_instruction): Replace use of
return_used_this_function
by cfun->machine->return_used_this_function.
(arm_output_epilogue): Likewise.
(arm_output_function_epilogue): Likewise.
(thumb_unexpanded_epilogue): Likewise.
* config/arm/arm.h (struct machine_function):
New member return_used_this_function.
2009-04-12 Mark Mitchell <mark@codesourcery.com>
* doc/install.texi: Correct description of default directory for

16
gcc/config/arm/arm.c
View File

@ -582,10 +582,6 @@ enum machine_mode output_memory_reference_mode;
/* The register number to be used for the PIC offset register. */
unsigned arm_pic_register = INVALID_REGNUM;
/* Set to 1 when a return insn is output, this means that the epilogue
is not needed. */
int return_used_this_function;
/* Set to 1 after arm_reorg has started. Reset to start at the start of
the next function. */
static int after_arm_reorg = 0;
@ -11618,7 +11614,7 @@ output_return_instruction (rtx operand, int really_return, int reverse)
sprintf (conditional, "%%?%%%c0", reverse ? 'D' : 'd');
return_used_this_function = 1;
cfun->machine->return_used_this_function = 1;
offsets = arm_get_frame_offsets ();
live_regs_mask = offsets->saved_regs_mask;
@ -11883,7 +11879,6 @@ arm_output_function_prologue (FILE *f, HOST_WIDE_INT frame_size)
if (crtl->calls_eh_return)
asm_fprintf (f, "\t@ Calls __builtin_eh_return.\n");
return_used_this_function = 0;
}
const char *
@ -11904,7 +11899,8 @@ arm_output_epilogue (rtx sibling)
/* If we have already generated the return instruction
then it is futile to generate anything else. */
if (use_return_insn (FALSE, sibling) && return_used_this_function)
if (use_return_insn (FALSE, sibling) &&
(cfun->machine->return_used_this_function != 0))
return "";
func_type = arm_current_func_type ();
@ -12351,7 +12347,7 @@ arm_output_function_epilogue (FILE *file ATTRIBUTE_UNUSED,
/* ??? Probably not safe to set this here, since it assumes that a
function will be emitted as assembly immediately after we generate
RTL for it. This does not happen for inline functions. */
return_used_this_function = 0;
cfun->machine->return_used_this_function = 0;
}
else /* TARGET_32BIT */
{
@ -12359,7 +12355,7 @@ arm_output_function_epilogue (FILE *file ATTRIBUTE_UNUSED,
offsets = arm_get_frame_offsets ();
gcc_assert (!use_return_insn (FALSE, NULL)
|| !return_used_this_function
|| (cfun->machine->return_used_this_function != 0)
|| offsets->saved_regs == offsets->outgoing_args
|| frame_pointer_needed);
@ -17300,7 +17296,7 @@ thumb_unexpanded_epilogue (void)
int had_to_push_lr;
int size;
if (return_used_this_function)
if (cfun->machine->return_used_this_function != 0)
return "";
if (IS_NAKED (arm_current_func_type ()))

3
gcc/config/arm/arm.h
View File

@ -1610,6 +1610,9 @@ typedef struct machine_function GTY(())
register. We can never call via LR or PC. We can call via SP if a
trampoline happens to be on the top of the stack. */
rtx call_via[14];
/* Set to 1 when a return insn is output, this means that the epilogue
is not needed. */
int return_used_this_function;
}
machine_function;