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(prologue_marked): New variable.

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(m88k_end_prologue): Output the epilogue mark here if the start of
	the epilogue passed the end of the prologue.
	(m88k_begin_epilogue): Don't output the epilogue mark if the end
	of the prologue hasn't been processed yet.

From-SVN: r2549
This commit is contained in:
Tom Wood 1992-10-22 10:03:47 +00:00
parent 63d415c0de
commit 42e0278a47
1 changed files with 26 additions and 9 deletions
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35
gcc/config/m88k/m88k.c
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@ -47,7 +47,7 @@ extern char *ctime ();
extern int flag_traditional;
extern FILE *asm_out_file;
static char out_sccs_id[] = "@(#)m88k.c 2.2.13.5 10/19/92 15:27:15";
static char out_sccs_id[] = "@(#)m88k.c 2.2.13.6 10/21/92 12:41:48";
static char tm_sccs_id [] = TM_SCCS_ID;
char *m88k_pound_sign = ""; /* Either # for SVR4 or empty for SVR3 */
@ -1678,6 +1678,7 @@ static int frame_laid_out;
static int frame_size;
static int variable_args_p;
static int epilogue_marked;
static int prologue_marked;
extern char call_used_regs[];
extern int current_function_pretend_args_size;
@ -1854,7 +1855,6 @@ m88k_begin_prologue (stream, size)
FILE *stream;
int size;
{
epilogue_marked = 0;
m88k_prologue_done = 1; /* it's ok now to put out ln directives */
}
@ -1862,11 +1862,23 @@ void
m88k_end_prologue (stream)
FILE *stream;
{
if (TARGET_OCS_DEBUG_INFO)
PUT_OCS_FUNCTION_START (stream);
if (epilogue_marked)
abort ();
frame_laid_out = 0;
if (TARGET_OCS_DEBUG_INFO && !prologue_marked)
{
PUT_OCS_FUNCTION_START (stream);
prologue_marked = 1;
/* If we've already passed the start of the epilogue, say that
it starts here. This marks the function as having a null body,
but at a point where the return address is in a known location.
Originally, I thought this couldn't happen, but the pic prologue
for leaf functions ends with the instruction that restores the
return address from the temporary register. If the temporary
register is never used, that instruction can float all the way
to the end of the function. */
if (epilogue_marked)
PUT_OCS_FUNCTION_END (stream);
}
}
void
@ -1927,8 +1939,10 @@ void
m88k_begin_epilogue (stream)
FILE *stream;
{
if (TARGET_OCS_DEBUG_INFO)
PUT_OCS_FUNCTION_END (stream);
if (TARGET_OCS_DEBUG_INFO && !epilogue_marked && prologue_marked)
{
PUT_OCS_FUNCTION_END (stream);
}
epilogue_marked = 1;
}
@ -1959,6 +1973,9 @@ m88k_end_epilogue (stream, size)
m88k_function_number++;
m88k_prologue_done = 0; /* don't put out ln directives */
variable_args_p = 0; /* has variable args */
frame_laid_out = 0;
epilogue_marked = 0;
prologue_marked = 0;
}
void