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arm.c (TARGET_SETUP_INCOMING_VARARGS): New.

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* config/arm/arm.c (TARGET_SETUP_INCOMING_VARARGS): New.
	(arm_setup_incoming_varargs): Likewise.
	* config/arm/arm.h (SETUP_INCOMING_VARARGS): Remove.

From-SVN: r76643
This commit is contained in:
Kazu Hirata 2004-01-26 16:35:44 +00:00 committed by Kazu Hirata
parent 558d352a12
commit 1cc9f5f5f9
3 changed files with 33 additions and 23 deletions
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6
gcc/ChangeLog
View File

@ -1,3 +1,9 @@
2004-01-26 Kazu Hirata <kazu@cs.umass.edu>
* config/arm/arm.c (TARGET_SETUP_INCOMING_VARARGS): New.
(arm_setup_incoming_varargs): Likewise.
* config/arm/arm.h (SETUP_INCOMING_VARARGS): Remove.
2004-01-26 Kazu Hirata <kazu@cs.umass.edu>
* config/cris/cris.c (TARGET_SETUP_INCOMING_VARARGS): New.

24
gcc/config/arm/arm.c
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@ -151,6 +151,8 @@ static void aof_file_start (void);
static void aof_file_end (void);
#endif
static rtx arm_struct_value_rtx (tree, int);
static void arm_setup_incoming_varargs (CUMULATIVE_ARGS *, enum machine_mode,
tree, int *, int);
/* Initialize the GCC target structure. */
@ -242,6 +244,9 @@ static rtx arm_struct_value_rtx (tree, int);
#undef TARGET_STRUCT_VALUE_RTX
#define TARGET_STRUCT_VALUE_RTX arm_struct_value_rtx
#undef TARGET_SETUP_INCOMING_VARARGS
#define TARGET_SETUP_INCOMING_VARARGS arm_setup_incoming_varargs
struct gcc_target targetm = TARGET_INITIALIZER;
/* Obstack for minipool constant handling. */
@ -13350,3 +13355,22 @@ arm_struct_value_rtx (tree fntype ATTRIBUTE_UNUSED,
return gen_rtx_REG (Pmode, ARG_REGISTER (1));
#endif
}
/* Worker function for TARGET_SETUP_INCOMING_VARARGS.
On the ARM, PRETEND_SIZE is set in order to have the prologue push the last
named arg and all anonymous args onto the stack.
XXX I know the prologue shouldn't be pushing registers, but it is faster
that way. */
static void
arm_setup_incoming_varargs (CUMULATIVE_ARGS *cum,
enum machine_mode mode ATTRIBUTE_UNUSED,
tree type ATTRIBUTE_UNUSED,
int *pretend_size,
int second_time ATTRIBUTE_UNUSED)
{
cfun->machine->uses_anonymous_args = 1;
if (cum->nregs < NUM_ARG_REGS)
*pretend_size = (NUM_ARG_REGS - cum->nregs) * UNITS_PER_WORD;
}

26
gcc/config/arm/arm.h
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@ -1703,9 +1703,9 @@ typedef struct
On the ARM, normally the first 16 bytes are passed in registers r0-r3; all
other arguments are passed on the stack. If (NAMED == 0) (which happens
only in assign_parms, since SETUP_INCOMING_VARARGS is defined), say it is
passed in the stack (function_prologue will indeed make it pass in the
stack if necessary). */
only in assign_parms, since TARGET_SETUP_INCOMING_VARARGS is
defined), say it is passed in the stack (function_prologue will
indeed make it pass in the stack if necessary). */
#define FUNCTION_ARG(CUM, MODE, TYPE, NAMED) \
arm_function_arg (&(CUM), (MODE), (TYPE), (NAMED))
@ -1764,26 +1764,6 @@ typedef struct
arm_va_arg (valist, type)
/* Perform any actions needed for a function that is receiving a variable
number of arguments. CUM is as above. MODE and TYPE are the mode and type
of the current parameter. PRETEND_SIZE is a variable that should be set to
the amount of stack that must be pushed by the prolog to pretend that our
caller pushed it.
Normally, this macro will push all remaining incoming registers on the
stack and set PRETEND_SIZE to the length of the registers pushed.
On the ARM, PRETEND_SIZE is set in order to have the prologue push the last
named arg and all anonymous args onto the stack.
XXX I know the prologue shouldn't be pushing registers, but it is faster
that way. */
#define SETUP_INCOMING_VARARGS(CUM, MODE, TYPE, PRETEND_SIZE, NO_RTL) \
{ \
cfun->machine->uses_anonymous_args = 1; \
if ((CUM).nregs < NUM_ARG_REGS) \
(PRETEND_SIZE) = (NUM_ARG_REGS - (CUM).nregs) * UNITS_PER_WORD; \
}
/* If your target environment doesn't prefix user functions with an
underscore, you may wish to re-define this to prevent any conflicts.
e.g. AOF may prefix mcount with an underscore. */