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alpha.c (alpha_function_name): Delete. 

* alpha.c (alpha_function_name): Delete.
        (alpha_ra_ever_killed): Notice current_function_is_thunk.
        (alpha_sa_mask, alpha_sa_size, alpha_does_function_need_gp): Likewise.
        (alpha_start_function): Reorg from output_prologue.
        (alpha_end_function): Reorg from output_epilogue.
        * alpha.h (ASM_DECLARE_FUNCTION_NAME): Call alpha_start_function.
        (ASM_DECLARE_FUNCTION_SIZE): New.
        (FUNCTION_PROLOGUE, FUNCTION_EPILOGUE): Delete.
        (PROFILE_BEFORE_PROLOGUE): Set.
        (ASM_OUTPUT_MI_THUNK): Remove bits now output by start/end_function.
        * alpha/win-nt.h (ASM_OUTPUT_MI_THUNK): Likewise.

From-SVN: r20709
This commit is contained in:
Richard Henderson 1998-06-24 18:09:06 -07:00 committed by Richard Henderson
parent ed48174c54
commit acd9204960
4 changed files with 96 additions and 117 deletions
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14
gcc/ChangeLog
View File

@ -1,3 +1,17 @@
Thu Jun 25 01:00:48 1998 Richard Henderson <rth@cygnus.com>
* alpha.c (alpha_function_name): Delete.
(alpha_ra_ever_killed): Notice current_function_is_thunk.
(alpha_sa_mask, alpha_sa_size, alpha_does_function_need_gp): Likewise.
(alpha_start_function): Reorg from output_prologue.
(alpha_end_function): Reorg from output_epilogue.
* alpha.h (ASM_DECLARE_FUNCTION_NAME): Call alpha_start_function.
(ASM_DECLARE_FUNCTION_SIZE): New.
(FUNCTION_PROLOGUE, FUNCTION_EPILOGUE): Delete.
(PROFILE_BEFORE_PROLOGUE): Set.
(ASM_OUTPUT_MI_THUNK): Remove bits now output by start/end_function.
* alpha/win-nt.h (ASM_OUTPUT_MI_THUNK): Likewise.
Thu Jun 25 01:18:47 1998 John Wehle (john@feith.com)
* i386/freebsd-elf.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Define.

104
gcc/config/alpha/alpha.c
View File

@ -79,11 +79,6 @@ char *alpha_mlat_string; /* -mmemory-latency= */
rtx alpha_compare_op0, alpha_compare_op1;
int alpha_compare_fp_p;
/* Save the name of the current function as used by the assembler. This
is used by the epilogue. */
char *alpha_function_name;
/* Non-zero if inside of a function, because the Alpha asm can't
handle .files inside of functions. */
@ -2459,6 +2454,10 @@ alpha_return_addr (count, frame)
static int
alpha_ra_ever_killed ()
{
#ifdef ASM_OUTPUT_MI_THUNK
if (current_function_is_thunk)
return 0;
#endif
if (!alpha_return_addr_rtx)
return regs_ever_live[REG_RA];
@ -2930,7 +2929,7 @@ static int vms_save_fp_regno;
/* Register number used to reference objects off our PV. */
static int vms_base_regno;
/* Compute register masks for saved registers. */
/* Compute register masks for saved registers. */
static void
alpha_sa_mask (imaskP, fmaskP)
@ -2941,28 +2940,30 @@ alpha_sa_mask (imaskP, fmaskP)
unsigned long fmask = 0;
int i;
if (TARGET_OPEN_VMS && vms_is_stack_procedure)
imask |= (1L << HARD_FRAME_POINTER_REGNUM);
#ifdef ASM_OUTPUT_MI_THUNK
if (!current_function_is_thunk)
#endif
{
if (TARGET_OPEN_VMS && vms_is_stack_procedure)
imask |= (1L << HARD_FRAME_POINTER_REGNUM);
/* One for every register we have to save. */
/* One for every register we have to save. */
for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
if (! fixed_regs[i] && ! call_used_regs[i]
&& regs_ever_live[i] && i != REG_RA)
{
if (i < 32)
imask |= (1L << i);
else
fmask |= (1L << (i - 32));
}
for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
if (! fixed_regs[i] && ! call_used_regs[i]
&& regs_ever_live[i] && i != REG_RA)
{
if (i < 32)
imask |= (1L << i);
else
fmask |= (1L << (i - 32));
}
if (imask || fmask || alpha_ra_ever_killed ())
imask |= (1L << REG_RA);
if (imask || fmask || alpha_ra_ever_killed ())
imask |= (1L << REG_RA);
}
*imaskP = imask;
*fmaskP = fmask;
return;
}
int
@ -2971,12 +2972,18 @@ alpha_sa_size ()
int sa_size = 0;
int i;
/* One for every register we have to save. */
for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
if (! fixed_regs[i] && ! call_used_regs[i]
&& regs_ever_live[i] && i != REG_RA)
sa_size++;
#ifdef ASM_OUTPUT_MI_THUNK
if (current_function_is_thunk)
sa_size = 0;
else
#endif
{
/* One for every register we have to save. */
for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
if (! fixed_regs[i] && ! call_used_regs[i]
&& regs_ever_live[i] && i != REG_RA)
sa_size++;
}
if (TARGET_OPEN_VMS)
{
@ -3070,6 +3077,11 @@ alpha_does_function_need_gp ()
return 1;
#endif
#ifdef ASM_OUTPUT_MI_THUNK
if (current_function_is_thunk)
return 1;
#endif
/* If we need a GP (we have a LDSYM insn or a CALL_INSN), load it first.
Even if we are a static function, we still need to do this in case
our address is taken and passed to something like qsort. */
@ -3328,12 +3340,13 @@ alpha_expand_prologue ()
emit_insn (gen_blockage ());
}
/* Output the rest of the textual info surrounding the prologue. */
/* Output the textual info surrounding the prologue. */
void
output_prologue (file, size)
alpha_start_function (file, fnname, decl)
FILE *file;
HOST_WIDE_INT size;
char *fnname;
tree decl;
{
unsigned long imask = 0;
unsigned long fmask = 0;
@ -3343,7 +3356,7 @@ output_prologue (file, size)
HOST_WIDE_INT frame_size;
/* Offset from base reg to register save area. */
HOST_WIDE_INT reg_offset;
char *entry_label = (char *) alloca (strlen (alpha_function_name) + 6);
char *entry_label = (char *) alloca (strlen (fnname) + 6);
int i;
sa_size = alpha_sa_size ();
@ -3388,11 +3401,11 @@ output_prologue (file, size)
if (TARGET_OPEN_VMS || !flag_inhibit_size_directive)
{
fputs ("\t.ent ", file);
assemble_name (file, alpha_function_name);
assemble_name (file, fnname);
putc ('\n', file);
}
strcpy (entry_label, alpha_function_name);
strcpy (entry_label, fnname);
if (TARGET_OPEN_VMS)
strcat (entry_label, "..en");
ASM_OUTPUT_LABEL (file, entry_label);
@ -3482,7 +3495,7 @@ output_prologue (file, size)
fputs ("\tldgp $29,0($27)\n", file);
putc ('$', file);
assemble_name (file, alpha_function_name);
assemble_name (file, fnname);
fputs ("..ng:\n", file);
}
@ -3491,21 +3504,21 @@ output_prologue (file, size)
available then. */
readonly_section ();
fprintf (file, "\t.align 3\n");
assemble_name (file, alpha_function_name); fputs ("..na:\n", file);
assemble_name (file, fnname); fputs ("..na:\n", file);
fputs ("\t.ascii \"", file);
assemble_name (file, alpha_function_name);
assemble_name (file, fnname);
fputs ("\\0\"\n", file);
link_section ();
fprintf (file, "\t.align 3\n");
fputs ("\t.name ", file);
assemble_name (file, alpha_function_name);
assemble_name (file, fnname);
fputs ("..na\n", file);
ASM_OUTPUT_LABEL (file, alpha_function_name);
ASM_OUTPUT_LABEL (file, fnname);
fprintf (file, "\t.pdesc ");
assemble_name (file, alpha_function_name);
assemble_name (file, fnname);
fprintf (file, "..en,%s\n", vms_is_stack_procedure ? "stack" : "reg");
alpha_need_linkage (alpha_function_name, 1);
alpha_need_linkage (fnname, 1);
text_section ();
#endif
}
@ -3709,15 +3722,16 @@ alpha_expand_epilogue ()
/* Output the rest of the textual info surrounding the epilogue. */
void
output_epilogue (file, size)
alpha_end_function (file, fnname, decl)
FILE *file;
int size;
char *fnname;
tree decl;
{
/* End the function. */
if (!flag_inhibit_size_directive)
{
fputs ("\t.end ", file);
assemble_name (file, alpha_function_name);
assemble_name (file, fnname);
putc ('\n', file);
}
inside_function = FALSE;

65
gcc/config/alpha/alpha.h
View File

@ -1090,7 +1090,6 @@ extern struct rtx_def *alpha_compare_op0, *alpha_compare_op1;
extern int alpha_compare_fp_p;
/* Make (or fake) .linkage entry for function call.
IS_LOCAL is 0 if name is used in call, 1 if name is used in definition. */
extern void alpha_need_linkage ();
@ -1098,30 +1097,26 @@ extern void alpha_need_linkage ();
#define ASM_COMMENT_START " #"
/* This macro produces the initial definition of a function name. On the
Alpha, we need to save the function name for the prologue and epilogue. */
/* This macro produces the initial definition of a function. */
extern char *alpha_function_name;
#define ASM_DECLARE_FUNCTION_NAME(FILE,NAME,DECL) \
alpha_start_function(FILE,NAME,DECL);
extern void alpha_start_function ();
#define ASM_DECLARE_FUNCTION_NAME(FILE,NAME,DECL) \
{ \
alpha_function_name = NAME; \
}
/* This macro closes up a function definition for the assembler. */
#define ASM_DECLARE_FUNCTION_SIZE(FILE,NAME,DECL) \
alpha_end_function(FILE,NAME,DECL)
extern void alpha_end_function ();
/* This macro generates the assembly code for function entry.
FILE is a stdio stream to output the code to.
SIZE is an int: how many units of temporary storage to allocate.
Refer to the array `regs_ever_live' to determine which registers
to save; `regs_ever_live[I]' is nonzero if register number I
is ever used in the function. This macro is responsible for
knowing which registers should not be saved even if used. */
#define FUNCTION_PROLOGUE(FILE, SIZE) output_prologue (FILE, SIZE)
/* This macro notes the end of the prologue. */
#define FUNCTION_END_PROLOGUE(FILE) output_end_prologue (FILE)
/* Output any profiling code before the prologue. */
#define PROFILE_BEFORE_PROLOGUE 1
/* Output assembler code to FILE to increment profiler label # LABELNO
for profiling a function entry. Under OSF/1, profiling is enabled
by simply passing -pg to the assembler and linker. */
@ -1170,19 +1165,6 @@ extern char *alpha_function_name;
No definition is equivalent to always zero. */
#define EXIT_IGNORE_STACK 1
/* This macro generates the assembly code for function exit,
on machines that need it. If FUNCTION_EPILOGUE is not defined
then individual return instructions are generated for each
return statement. Args are same as for FUNCTION_PROLOGUE.
The function epilogue should not depend on the current stack pointer!
It should use the frame pointer only. This is mandatory because
of alloca; we also take advantage of it to omit stack adjustments
before returning. */
#define FUNCTION_EPILOGUE(FILE, SIZE) output_epilogue (FILE, SIZE)
/* Output assembler code for a block containing the constant parts
of a trampoline, leaving space for the variable parts.
@ -2124,16 +2106,8 @@ literal_section () \
do { \
char *fn_name = XSTR (XEXP (DECL_RTL (FUNCTION), 0), 0); \
\
fprintf (FILE, "\t.ent "); \
assemble_name (FILE, alpha_function_name); \
fputc ('\n', FILE); \
ASM_OUTPUT_LABEL (FILE, alpha_function_name); \
fprintf (FILE, "\tldgp $29,0($27)\n"); \
fputc ('$', FILE); \
assemble_name (FILE, alpha_function_name); \
fprintf (FILE, "..ng:\n"); \
fprintf (FILE, "\t.frame $30,0,$26,0\n"); \
fprintf (FILE, "\t.prologue 1\n"); \
/* Mark end of prologue. */ \
output_end_prologue (FILE); \
\
/* Rely on the assembler to macro expand a large delta. */ \
fprintf (FILE, "\tlda $16,%ld($16)\n", (long)(DELTA)); \
@ -2146,18 +2120,11 @@ do { \
} \
else \
{ \
fprintf (FILE, "\tlda $27,"); \
assemble_name (FILE, fn_name); \
fprintf (FILE, "\n\tjmp $31,($27),"); \
fprintf (FILE, "\tjmp $31,"); \
assemble_name (FILE, fn_name); \
fputc ('\n', FILE); \
} \
\
fprintf (FILE, "\t.end "); \
assemble_name (FILE, alpha_function_name); \
fputc ('\n', FILE); \
} while (0)
/* Define results of standard character escape sequences. */
#define TARGET_BELL 007

30
gcc/config/alpha/win-nt.h
View File

@ -136,36 +136,20 @@ Boston, MA 02111-1307, USA. */
/* Output code to add DELTA to the first argument, and then jump to FUNCTION.
Used for C++ multiple inheritance. */
#undef ASM_OUTPUT_MI_THUNK
#define ASM_OUTPUT_MI_THUNK(FILE, THUNK_FNDECL, DELTA, FUNCTION) \
do { \
char *fn_name = XSTR (XEXP (DECL_RTL (FUNCTION), 0), 0); \
char *op, *fn_name = XSTR (XEXP (DECL_RTL (FUNCTION), 0), 0); \
\
fprintf (FILE, "\t.ent "); \
assemble_name (FILE, alpha_function_name); \
fputc ('\n', FILE); \
ASM_OUTPUT_LABEL (FILE, alpha_function_name); \
fprintf (FILE, "\t.frame $30,0,$26,0\n"); \
fprintf (FILE, "\t.prologue 1\n"); \
/* Mark end of prologue. */ \
output_end_prologue (FILE); \
\
/* Rely on the assembler to macro expand a large delta. */ \
fprintf (FILE, "\tlda $16,%ld($16)\n", (long)(DELTA)); \
\
op = "jsr"; \
if (current_file_function_operand (XEXP (DECL_RTL (FUNCTION), 0))) \
{ \
fprintf (FILE, "\tbr $31,"); \
assemble_name (FILE, fn_name); \
fputc ('\n', FILE); \
} \
else \
{ \
fprintf (FILE, "\tjmp $31,"); \
assemble_name (FILE, fn_name); \
fputc ('\n', FILE); \
} \
\
fprintf (FILE, "\t.end "); \
assemble_name (FILE, alpha_function_name); \
op = "br"; \
fprintf (FILE, "\t%s $31,", op); \
assemble_name (FILE, fn_name); \
fputc ('\n', FILE); \
} while (0)