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Fix -O3 stdarg miscompilation.

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* config/v850/v850.c (current_function_anonymous_args): Delete.
	(expand_prologue): Use current_function_args_info.anonymous_args.
	(expand_epilogue): Delete use of current_function_anonymous_args.
	* config/v850/v850.h (struct cum_arg): Add anonymous_args field.
	(INIT_CUMULATIVE_ARGS): Clear anonymous_args field.
	(current_function_anonymous_args): Delete extern declaration.
	(SETUP_INCOMING_VARARGS): Set anonymous_args field.

From-SVN: r57363
This commit is contained in:
Jim Wilson 2002-09-20 19:15:53 +00:00 • committed by Jim Wilson
parent f51eee6af1
commit 66a0dfebeb
3 changed files with 14 additions and 9 deletions
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10
gcc/ChangeLog
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@ -1,3 +1,13 @@
2002-09-20 Jim Wilson <wilson@redhat.com>
* config/v850/v850.c (current_function_anonymous_args): Delete.
(expand_prologue): Use current_function_args_info.anonymous_args.
(expand_epilogue): Delete use of current_function_anonymous_args.
* config/v850/v850.h (struct cum_arg): Add anonymous_args field.
(INIT_CUMULATIVE_ARGS): Clear anonymous_args field.
(current_function_anonymous_args): Delete extern declaration.
(SETUP_INCOMING_VARARGS): Set anonymous_args field.
2002-09-20 Geoffrey Keating <geoffk@apple.com>
* config/rs6000/rs6000.c (rs6000_emit_prologue): Update for change

6
gcc/config/v850/v850.c
View file

@ -61,9 +61,6 @@ static void v850_encode_data_area PARAMS ((tree));
static void v850_encode_section_info PARAMS ((tree, int));
static const char *v850_strip_name_encoding PARAMS ((const char *));
/* True if the current function has anonymous arguments. */
int current_function_anonymous_args;
/* Information about the various small memory areas. */
struct small_memory_info small_memory[ (int)SMALL_MEMORY_max ] =
{
@ -1656,7 +1653,7 @@ expand_prologue ()
}
/* Save arg registers to the stack if necessary. */
else if (current_function_anonymous_args)
else if (current_function_args_info.anonymous_args)
{
if (TARGET_PROLOG_FUNCTION)
{
@ -2063,7 +2060,6 @@ Saved %d bytes via epilogue function (%d vs. %d) in function %s\n",
emit_jump_insn (gen_return ());
}
current_function_anonymous_args = 0;
v850_interrupt_cache_p = FALSE;
v850_interrupt_p = FALSE;
}

7
gcc/config/v850/v850.h
View file

@ -713,7 +713,7 @@ enum reg_class
such as FUNCTION_ARG to determine where the next arg should go. */
#define CUMULATIVE_ARGS struct cum_arg
struct cum_arg { int nbytes; };
struct cum_arg { int nbytes; int anonymous_args; };
/* Define where to put the arguments to a function.
Value is zero to push the argument on the stack,
@ -739,7 +739,7 @@ struct cum_arg { int nbytes; };
For a library call, FNTYPE is 0. */
#define INIT_CUMULATIVE_ARGS(CUM,FNTYPE,LIBNAME,INDIRECT) \
((CUM).nbytes = 0)
((CUM).nbytes = 0, (CUM).anonymous_args = 0)
/* Update the data in CUM to advance over an argument
of mode MODE and data type TYPE.
@ -758,10 +758,9 @@ struct cum_arg { int nbytes; };
space allocated by the caller. */
#define OUTGOING_REG_PARM_STACK_SPACE
extern int current_function_anonymous_args;
/* Do any setup necessary for varargs/stdargs functions. */
#define SETUP_INCOMING_VARARGS(CUM, MODE, TYPE, PAS, SECOND) \
current_function_anonymous_args = (!TARGET_GHS ? 1 : 0);
(CUM).anonymous_args = (!TARGET_GHS ? 1 : 0);
/* Implement `va_arg'. */
#define EXPAND_BUILTIN_VA_ARG(valist, type) \