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Replace current_function_anonymous_args with cfun->machine->uses_anonymous_args 

From-SVN: r49490
This commit is contained in:
Nick Clifton 2002-02-04 20:23:07 +00:00 committed by Nick Clifton
parent 53804e7c80
commit 3cb66fd7e1
3 changed files with 24 additions and 30 deletions
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12
gcc/ChangeLog
View File

@ -1,3 +1,15 @@
2002-02-04 Nick Clifton <nickc@cambridge.redhat.com>
* config/arm/arm.h (machine_function): Add uses_anonymous_args
field.
(SETUP_INCOMING_VARARGS): Set uses_anonymous_args.
* config/arm/arm.c (current_function_anonymous_args): Delete,
replace uses with cfun->machine->uses_anonymous_args.
(arm_reorg): Do not reset uses_anonymous_args.
* config/arm/arm.c (arm_hard_regno_mode_ok): Allow any value in
any geenral register.
2001-02-04 Bernd Schmidt <bernds@redhat.com>
* cfgrtl.c (force_nonfallthru_and_redirect): Don't try to redirect

35
gcc/config/arm/arm.c
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@ -266,9 +266,6 @@ int thumb_code = 0;
PRINT_OPERAND_ADDRESS. */
enum machine_mode output_memory_reference_mode;
/* Nonzero if the prologue must setup `fp'. */
int current_function_anonymous_args;
/* The register number to be used for the PIC offset register. */
const char * arm_pic_register_string = NULL;
int arm_pic_register = 9;
@ -909,7 +906,7 @@ use_return_insn (iscond)
/* As do variadic functions. */
if (current_function_pretend_args_size
|| current_function_anonymous_args
|| cfun->machine->uses_anonymous_args
/* Of if the function calls __builtin_eh_return () */
|| ARM_FUNC_TYPE (func_type) == ARM_FT_EXCEPTION_HANDLER
/* Or if there is no frame pointer and there is a stack adjustment. */
@ -7457,9 +7454,9 @@ arm_output_function_prologue (f, frame_size)
current_function_args_size,
current_function_pretend_args_size, frame_size);
asm_fprintf (f, "\t%@ frame_needed = %d, current_function_anonymous_args = %d\n",
asm_fprintf (f, "\t%@ frame_needed = %d, uses_anonymous_args = %d\n",
frame_pointer_needed,
current_function_anonymous_args);
cfun->machine->uses_anonymous_args);
if (cfun->machine->lr_save_eliminated)
asm_fprintf (f, "\t%@ link register save eliminated.\n");
@ -7754,7 +7751,6 @@ arm_output_function_epilogue (file, frame_size)
abort ();
/* Reset the ARM-specific per-function variables. */
current_function_anonymous_args = 0;
after_arm_reorg = 0;
}
}
@ -8068,7 +8064,7 @@ arm_compute_initial_elimination_offset (from, to)
/* FIXME: Not sure about this. Maybe we should always return 0 ? */
return (frame_pointer_needed
&& current_function_needs_context
&& ! current_function_anonymous_args) ? 4 : 0;
&& ! cfun->machine->uses_anonymous_args) ? 4 : 0;
case STACK_POINTER_REGNUM:
/* If nothing has been pushed on the stack at all
@ -8209,7 +8205,7 @@ arm_expand_prologue ()
else
{
/* Store the args on the stack. */
if (current_function_anonymous_args)
if (cfun->machine->uses_anonymous_args)
insn = emit_multi_reg_push
((0xf0 >> (args_to_push / 4)) & 0xf);
else
@ -8245,7 +8241,7 @@ arm_expand_prologue ()
if (args_to_push)
{
/* Push the argument registers, or reserve space for them. */
if (current_function_anonymous_args)
if (cfun->machine->uses_anonymous_args)
insn = emit_multi_reg_push
((0xf0 >> (args_to_push / 4)) & 0xf);
else
@ -9139,20 +9135,8 @@ arm_hard_regno_mode_ok (regno, mode)
return (NUM_REGS (mode) < 2) || (regno < LAST_LO_REGNUM);
if (regno <= LAST_ARM_REGNUM)
/* We allow an SImode or smaller value to be stored in any
general purpose register. This does not mean, for example
that GCC will choose to store a variable in the stack pointer
since it is a fixed register. But it is important to allow
access to these special registers, so that they can be
referenced from C code via the asm assembler alias, eg:
register char * stack_ptr asm ("sp");
For any mode requiring more than one register to hold the
value we restrict the choice so that r13, r14, and r15
cannot be part of the register set. */
return (NUM_REGS (mode) <= 1)
|| (regno < (SP_REGNUM - (unsigned) NUM_REGS (mode)));
/* We allow any value to be stored in the general regisetrs. */
return 1;
if ( regno == FRAME_POINTER_REGNUM
|| regno == ARG_POINTER_REGNUM)
@ -10187,7 +10171,6 @@ thumb_expand_prologue ()
if (regno > LAST_LO_REGNUM) /* Very unlikely */
{
rtx spare = gen_rtx (REG, SImode, IP_REGNUM);
rtx insn;
/* Choose an arbitary, non-argument low register. */
reg = gen_rtx (REG, SImode, LAST_LO_REGNUM);
@ -10312,7 +10295,7 @@ thumb_output_function_prologue (f, size)
if (current_function_pretend_args_size)
{
if (current_function_anonymous_args)
if (cfun->machine->uses_anonymous_args)
{
int num_pushes;

7
gcc/config/arm/arm.h
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@ -81,8 +81,6 @@ extern struct rtx_def * pool_vector_label;
/* Set to 1 when a return insn is output, this means that the epilogue
is not needed. */
extern int return_used_this_function;
/* Nonzero if the prologue must setup `fp'. */
extern int current_function_anonymous_args;
/* Just in case configure has failed to define anything. */
#ifndef TARGET_CPU_DEFAULT
@ -1454,6 +1452,8 @@ typedef struct machine_function
int lr_save_eliminated;
/* Records the type of the current function. */
unsigned long func_type;
/* Record if the function has a variable argument list. */
int uses_anonymous_args;
}
machine_function;
@ -1536,8 +1536,7 @@ typedef struct
that way. */
#define SETUP_INCOMING_VARARGS(CUM, MODE, TYPE, PRETEND_SIZE, NO_RTL) \
{ \
extern int current_function_anonymous_args; \
current_function_anonymous_args = 1; \
cfun->machine->uses_anonymous_args = 1; \
if ((CUM).nregs < NUM_ARG_REGS) \
(PRETEND_SIZE) = (NUM_ARG_REGS - (CUM).nregs) * UNITS_PER_WORD; \
}