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m32r.c (addr24_operand): Handle literals. 

* m32r/m32r.c (addr24_operand): Handle literals.
	(m32r_output_function_prologue): Use IMMEDIATE_PREFIX.
	(m32r_output_function_epilogue): Likewise.  Use shorter add insn if
	able.

From-SVN: r14013
This commit is contained in:
Doug Evans 1997-05-02 19:30:02 +00:00
parent 0ebaa85d16
commit 630f5ae614
1 changed files with 32 additions and 22 deletions
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54
gcc/config/m32r/m32r.c
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@ -503,7 +503,8 @@ addr24_operand (op, mode)
if (GET_CODE (op) == SYMBOL_REF)
return (SMALL_NAME_P (XSTR (op, 0))
|| (TARGET_ADDR24
&& CONSTANT_POOL_ADDRESS_P (op)));
&& (CONSTANT_POOL_ADDRESS_P (op)
|| LIT_NAME_P (XSTR (op, 0)))));
if (GET_CODE (op) == CONST
&& GET_CODE (XEXP (op, 0)) == PLUS
@ -514,7 +515,8 @@ addr24_operand (op, mode)
rtx sym = XEXP (XEXP (op, 0), 0);
return (SMALL_NAME_P (XSTR (sym, 0))
|| (TARGET_ADDR24
&& CONSTANT_POOL_ADDRESS_P (op)));
&& (CONSTANT_POOL_ADDRESS_P (op)
|| LIT_NAME_P (XSTR (op, 0)))));
}
return 0;
@ -1323,15 +1325,17 @@ m32r_output_function_prologue (file, size)
#if 1
/* Allocate space for register arguments if this is a variadic function. */
if (current_frame_info.pretend_size != 0)
fprintf (file, "\taddi %s,%d\n",
sp_str, -current_frame_info.pretend_size);
fprintf (file, "\taddi %s,%s%d\n",
sp_str, IMMEDIATE_PREFIX,
-current_frame_info.pretend_size);
#else
/* If there are unnamed args in registers, save them. */
if (current_function_stdarg || current_function_varargs)
{
int i;
fprintf (file, "\taddi %s,%d\n",
sp_str, - M32R_MAX_PARM_REGS * UNITS_PER_WORD);
fprintf (file, "\taddi %s,%s%d\n",
sp_str, IMMEDIATE_PREFIX,
- M32R_MAX_PARM_REGS * UNITS_PER_WORD);
for (i = 0; i < M32R_MAX_PARM_REGS; ++i)
fprintf (file, "\tst %s,@(sp,%d)\n",
reg_names[i], i * UNITS_PER_WORD);
@ -1362,14 +1366,15 @@ m32r_output_function_prologue (file, size)
if (frame_size == 0)
; /* nothing to do */
else if (frame_size <= 128)
fprintf (file, "\taddi %s,%d\n",
sp_str, -frame_size);
fprintf (file, "\taddi %s,%s%d\n",
sp_str, IMMEDIATE_PREFIX, -frame_size);
else if (frame_size <= 32768)
fprintf (file, "\tadd3 %s,%s,%d\n",
sp_str, sp_str, -frame_size);
fprintf (file, "\tadd3 %s,%s,%s%d\n",
sp_str, sp_str, IMMEDIATE_PREFIX, -frame_size);
else
fprintf (file, "\tld24 %s,%d\n\tsub %s,%s\n",
reg_names[PROLOGUE_TMP_REGNUM], frame_size,
fprintf (file, "\tld24 %s,%s%d\n\tsub %s,%s\n",
reg_names[PROLOGUE_TMP_REGNUM],
IMMEDIATE_PREFIX, frame_size,
sp_str, reg_names[PROLOGUE_TMP_REGNUM]);
if (frame_pointer_needed)
@ -1428,12 +1433,16 @@ m32r_output_function_epilogue (file, size)
unsigned int reg_offset = var_size + args_size;
if (reg_offset == 0)
; /* nothing to do */
else if (reg_offset < 128)
fprintf (file, "\taddi %s,%s%d\n",
sp_str, IMMEDIATE_PREFIX, reg_offset);
else if (reg_offset < 32768)
fprintf (file, "\tadd3 %s,%s,%d\n",
sp_str, sp_str, reg_offset);
fprintf (file, "\tadd3 %s,%s,%s%d\n",
sp_str, sp_str, IMMEDIATE_PREFIX, reg_offset);
else
fprintf (file, "\tld24 %s,%d\n\tadd %s,%s\n",
reg_names[PROLOGUE_TMP_REGNUM], reg_offset,
fprintf (file, "\tld24 %s,%s%d\n\tadd %s,%s\n",
reg_names[PROLOGUE_TMP_REGNUM],
IMMEDIATE_PREFIX, reg_offset,
sp_str, reg_names[PROLOGUE_TMP_REGNUM]);
}
else if (frame_pointer_needed)
@ -1442,11 +1451,12 @@ m32r_output_function_epilogue (file, size)
if (reg_offset == 0)
fprintf (file, "\tmv %s,%s\n", sp_str, fp_str);
else if (reg_offset < 32768)
fprintf (file, "\tadd3 %s,%s,%d\n",
sp_str, fp_str, reg_offset);
fprintf (file, "\tadd3 %s,%s,%s%d\n",
sp_str, fp_str, IMMEDIATE_PREFIX, reg_offset);
else
fprintf (file, "\tld24 %s,%d\n\tadd %s,%s\n",
reg_names[PROLOGUE_TMP_REGNUM], reg_offset,
fprintf (file, "\tld24 %s,%s%d\n\tadd %s,%s\n",
reg_names[PROLOGUE_TMP_REGNUM],
IMMEDIATE_PREFIX, reg_offset,
sp_str, reg_names[PROLOGUE_TMP_REGNUM]);
}
else
@ -1468,8 +1478,8 @@ m32r_output_function_epilogue (file, size)
/* Remove varargs area if present. */
if (current_frame_info.pretend_size != 0)
fprintf (file, "\taddi %s,%d\n",
sp_str, current_frame_info.pretend_size);
fprintf (file, "\taddi %s,%s%d\n",
sp_str, IMMEDIATE_PREFIX, current_frame_info.pretend_size);
/* Emit the return instruction. */
if (M32R_INTERRUPT_P (fn_type))