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Commit 16c16a24 by John David Anglin Committed by John David Anglin
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re PR middle-end/32398 (checking for suffix of object files... configure: error:… 

re PR middle-end/32398 (checking for suffix of object files... configure: error: cannot compute suffix of f object files: cannot compile)

	PR middle-end/32398
	PR middle-end/32769
	* pa-protos.h (pa_eh_return_handler_rtx): Declare.
	* pa.c (pa_extra_live_on_entry, rp_saved): Declare.
	(TARGET_EXTRA_LIVE_ON_ENTRY): Define.
	(pa_output_function_prologue): Use rp_saved and current_function_is_leaf
	to generate .CALLINFO statement.
	(hppa_expand_prologue): Set rp_saved.
	(hppa_expand_epilogue): Use rp_saved.
	(pa_extra_live_on_entry, pa_eh_return_handler_rtx): New functions.
	* pa.h (EH_RETURN_HANDLER_RTX): Use pa_eh_return_handler_rtx.

From-SVN: r126657
parent b220e3f9
Showing with 63 additions and 10 deletions
gcc/ChangeLog
2007-07-15 John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
PR middle-end/32398
PR middle-end/32769
* pa-protos.h (pa_eh_return_handler_rtx): Declare.
* pa.c (pa_extra_live_on_entry, rp_saved): Declare.
(TARGET_EXTRA_LIVE_ON_ENTRY): Define.
(pa_output_function_prologue): Use rp_saved and current_function_is_leaf
to generate .CALLINFO statement.
(hppa_expand_prologue): Set rp_saved.
(hppa_expand_epilogue): Use rp_saved.
(pa_extra_live_on_entry, pa_eh_return_handler_rtx): New functions.
* pa.h (EH_RETURN_HANDLER_RTX): Use pa_eh_return_handler_rtx.
2007-07-14 Dirk Mueller <dmueller@suse.de>
* omega.c (coalesce): Fix memory leak on early exit.
......
gcc/config/pa/pa-protos.h
......@@ -23,6 +23,7 @@ Boston, MA 02110-1301, USA. */
/* Prototype function used in various macros. */
extern int symbolic_operand (rtx, enum machine_mode);
extern int tls_symbolic_operand (rtx);
extern rtx pa_eh_return_handler_rtx (void);
/* Used in insn-*.c. */
extern int following_call (rtx);
......
gcc/config/pa/pa.c
......@@ -156,7 +156,7 @@ static struct machine_function * pa_init_machine_status (void);
static enum reg_class pa_secondary_reload (bool, rtx, enum reg_class,
enum machine_mode,
secondary_reload_info *);
static void pa_extra_live_on_entry (bitmap);
/* The following extra sections are only used for SOM. */
static GTY(()) section *som_readonly_data_section;
......@@ -178,6 +178,10 @@ int flag_pa_unix = TARGET_HPUX_11_11 ? 1998 : TARGET_HPUX_10_10 ? 1995 : 1993;
registers which were saved by the current function's prologue. */
static int gr_saved, fr_saved;
/* Boolean indicating whether the return pointer was saved by the
current function's prologue. */
static bool rp_saved;
static rtx find_addr_reg (rtx);
/* Keep track of the number of bytes we have output in the CODE subspace
......@@ -313,6 +317,9 @@ static size_t n_deferred_plabels = 0;
#undef TARGET_SECONDARY_RELOAD
#define TARGET_SECONDARY_RELOAD pa_secondary_reload
#undef TARGET_EXTRA_LIVE_ON_ENTRY
#define TARGET_EXTRA_LIVE_ON_ENTRY pa_extra_live_on_entry
struct gcc_target targetm = TARGET_INITIALIZER;
/* Parse the -mfixed-range= option string. */
......@@ -3563,10 +3570,12 @@ pa_output_function_prologue (FILE *file, HOST_WIDE_INT size ATTRIBUTE_UNUSED)
to output the assembler directives which denote the start
of a function. */
fprintf (file, "\t.CALLINFO FRAME=" HOST_WIDE_INT_PRINT_DEC, actual_fsize);
if (df_regs_ever_live_p (2))
fputs (",CALLS,SAVE_RP", file);
else
if (current_function_is_leaf)
fputs (",NO_CALLS", file);
else
fputs (",CALLS", file);
if (rp_saved)
fputs (",SAVE_RP", file);
/* The SAVE_SP flag is used to indicate that register %r3 is stored
at the beginning of the frame and that it is used as the frame
......@@ -3628,7 +3637,12 @@ hppa_expand_prologue (void)
always be stored into the caller's frame at sp - 20 or sp - 16
depending on which ABI is in use. */
if (df_regs_ever_live_p (2) || current_function_calls_eh_return)
store_reg (2, TARGET_64BIT ? -16 : -20, STACK_POINTER_REGNUM);
{
store_reg (2, TARGET_64BIT ? -16 : -20, STACK_POINTER_REGNUM);
rp_saved = true;
}
else
rp_saved = false;
/* Allocate the local frame and set up the frame pointer if needed. */
if (actual_fsize != 0)
......@@ -4030,7 +4044,7 @@ hppa_expand_epilogue (void)
/* Try to restore RP early to avoid load/use interlocks when
RP gets used in the return (bv) instruction. This appears to still
be necessary even when we schedule the prologue and epilogue. */
if (df_regs_ever_live_p (2) || current_function_calls_eh_return)
if (rp_saved)
{
ret_off = TARGET_64BIT ? -16 : -20;
if (frame_pointer_needed)
......@@ -5734,6 +5748,33 @@ pa_secondary_reload (bool in_p, rtx x, enum reg_class class,
return NO_REGS;
}
/* Implement TARGET_EXTRA_LIVE_ON_ENTRY. The argument pointer
is only marked as live on entry by df-scan when it is a fixed
register. It isn't a fixed register in the 64-bit runtime,
so we need to mark it here. */
static void
pa_extra_live_on_entry (bitmap regs)
{
if (TARGET_64BIT)
bitmap_set_bit (regs, ARG_POINTER_REGNUM);
}
/* Implement EH_RETURN_HANDLER_RTX. The MEM needs to be volatile
to prevent it from being deleted. */
rtx
pa_eh_return_handler_rtx (void)
{
rtx tmp;
tmp = gen_rtx_PLUS (word_mode, frame_pointer_rtx,
TARGET_64BIT ? GEN_INT (-16) : GEN_INT (-20));
tmp = gen_rtx_MEM (word_mode, tmp);
tmp->volatil = 1;
return tmp;
}
/* In the 32-bit runtime, arguments larger than eight bytes are passed
by invisible reference. As a GCC extension, we also pass anything
with a zero or variable size by reference.
......
gcc/config/pa/pa.h
......@@ -410,10 +410,7 @@ extern struct rtx_def *hppa_pic_save_rtx (void);
#define EH_RETURN_DATA_REGNO(N) \
((N) < 3 ? (N) + 20 : (N) == 3 ? 31 : INVALID_REGNUM)
#define EH_RETURN_STACKADJ_RTX gen_rtx_REG (Pmode, 29)
#define EH_RETURN_HANDLER_RTX \
gen_rtx_MEM (word_mode, \
gen_rtx_PLUS (word_mode, frame_pointer_rtx, \
TARGET_64BIT ? GEN_INT (-16) : GEN_INT (-20)))
#define EH_RETURN_HANDLER_RTX pa_eh_return_handler_rtx ()
/* Offset from the frame pointer register value to the top of stack. */
#define FRAME_POINTER_CFA_OFFSET(FNDECL) 0
......
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