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explow.c (emit_stack_save): Remove 'after' parameter.

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* explow.c (emit_stack_save): Remove 'after' parameter.
        (emit_stack_restore): Likewise.
        * expr.h: Update to match.
        * builtins.c, calls.c, stmt.c: Likewise.
        * config/alpha/alpha.md, config/avr/avr.md: Likewise.
        * config/mips/mips.md, config/pa/pa.md, config/vax/vax.md: Likewise.
        * function.c (expand_function_end): Insert the emit_stack_save
        sequence before parm_birth_insn instead of after.

From-SVN: r170663
This commit is contained in:
Richard Henderson 2011-03-03 13:56:58 -08:00 committed by Richard Henderson
parent dfee1406b9
commit 9eac0f2a07
12 changed files with 51 additions and 71 deletions
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11
gcc/ChangeLog
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@ -1,3 +1,14 @@
2011-03-04 Richard Henderson <rth@redhat.com>
* explow.c (emit_stack_save): Remove 'after' parameter.
(emit_stack_restore): Likewise.
* expr.h: Update to match.
* builtins.c, calls.c, stmt.c: Likewise.
* config/alpha/alpha.md, config/avr/avr.md: Likewise.
* config/mips/mips.md, config/pa/pa.md, config/vax/vax.md: Likewise.
* function.c (expand_function_end): Insert the emit_stack_save
sequence before parm_birth_insn instead of after.
2011-03-03 Uros Bizjak <ubizjak@gmail.com>
* config/i386/sse.md (*avx_pmaddubsw128): Fix mode of VEC_SELECT RTX.

16
gcc/builtins.c
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@ -784,7 +784,7 @@ expand_builtin_setjmp_setup (rtx buf_addr, rtx receiver_label)
plus_constant (buf_addr,
2 * GET_MODE_SIZE (Pmode)));
set_mem_alias_set (stack_save, setjmp_alias_set);
emit_stack_save (SAVE_NONLOCAL, &stack_save, NULL_RTX);
emit_stack_save (SAVE_NONLOCAL, &stack_save);
/* If there is further processing to do, do it. */
#ifdef HAVE_builtin_setjmp_setup
@ -932,7 +932,7 @@ expand_builtin_longjmp (rtx buf_addr, rtx value)
emit_clobber (gen_rtx_MEM (BLKmode, hard_frame_pointer_rtx));
emit_move_insn (hard_frame_pointer_rtx, fp);
emit_stack_restore (SAVE_NONLOCAL, stack, NULL_RTX);
emit_stack_restore (SAVE_NONLOCAL, stack);
emit_use (hard_frame_pointer_rtx);
emit_use (stack_pointer_rtx);
@ -1005,7 +1005,7 @@ expand_builtin_nonlocal_goto (tree exp)
The non-local goto handler will then adjust it to contain the
proper value and reload the argument pointer, if needed. */
emit_move_insn (hard_frame_pointer_rtx, r_fp);
emit_stack_restore (SAVE_NONLOCAL, r_sp, NULL_RTX);
emit_stack_restore (SAVE_NONLOCAL, r_sp);
/* USE of hard_frame_pointer_rtx added for consistency;
not clear if really needed. */
@ -1075,7 +1075,7 @@ expand_builtin_update_setjmp_buf (rtx buf_addr)
emit_insn (gen_setjmp ());
#endif
emit_stack_save (SAVE_NONLOCAL, &stack_save, NULL_RTX);
emit_stack_save (SAVE_NONLOCAL, &stack_save);
}
/* Expand a call to __builtin_prefetch. For a target that does not support
@ -1558,10 +1558,10 @@ expand_builtin_apply (rtx function, rtx arguments, rtx argsize)
/* Save the stack with nonlocal if available. */
#ifdef HAVE_save_stack_nonlocal
if (HAVE_save_stack_nonlocal)
emit_stack_save (SAVE_NONLOCAL, &old_stack_level, NULL_RTX);
emit_stack_save (SAVE_NONLOCAL, &old_stack_level);
else
#endif
emit_stack_save (SAVE_BLOCK, &old_stack_level, NULL_RTX);
emit_stack_save (SAVE_BLOCK, &old_stack_level);
/* Allocate a block of memory onto the stack and copy the memory
arguments to the outgoing arguments address. We can pass TRUE
@ -1677,10 +1677,10 @@ expand_builtin_apply (rtx function, rtx arguments, rtx argsize)
/* Restore the stack. */
#ifdef HAVE_save_stack_nonlocal
if (HAVE_save_stack_nonlocal)
emit_stack_restore (SAVE_NONLOCAL, old_stack_level, NULL_RTX);
emit_stack_restore (SAVE_NONLOCAL, old_stack_level);
else
#endif
emit_stack_restore (SAVE_BLOCK, old_stack_level, NULL_RTX);
emit_stack_restore (SAVE_BLOCK, old_stack_level);
OK_DEFER_POP;

9
gcc/calls.c
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@ -1092,7 +1092,7 @@ initialize_argument_information (int num_actuals ATTRIBUTE_UNUSED,
if (*old_stack_level == 0)
{
emit_stack_save (SAVE_BLOCK, old_stack_level, NULL_RTX);
emit_stack_save (SAVE_BLOCK, old_stack_level);
*old_pending_adj = pending_stack_adjust;
pending_stack_adjust = 0;
}
@ -2488,7 +2488,7 @@ expand_call (tree exp, rtx target, int ignore)
{
if (old_stack_level == 0)
{
emit_stack_save (SAVE_BLOCK, &old_stack_level, NULL_RTX);
emit_stack_save (SAVE_BLOCK, &old_stack_level);
old_stack_pointer_delta = stack_pointer_delta;
old_pending_adj = pending_stack_adjust;
pending_stack_adjust = 0;
@ -2643,8 +2643,7 @@ expand_call (tree exp, rtx target, int ignore)
: reg_parm_stack_space));
if (old_stack_level == 0)
{
emit_stack_save (SAVE_BLOCK, &old_stack_level,
NULL_RTX);
emit_stack_save (SAVE_BLOCK, &old_stack_level);
old_stack_pointer_delta = stack_pointer_delta;
old_pending_adj = pending_stack_adjust;
pending_stack_adjust = 0;
@ -3101,7 +3100,7 @@ expand_call (tree exp, rtx target, int ignore)
if (old_stack_level)
{
emit_stack_restore (SAVE_BLOCK, old_stack_level, NULL_RTX);
emit_stack_restore (SAVE_BLOCK, old_stack_level);
stack_pointer_delta = old_stack_pointer_delta;
pending_stack_adjust = old_pending_adj;
old_stack_allocated = stack_pointer_delta - pending_stack_adjust;

2
gcc/config/alpha/alpha.md
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@ -6765,7 +6765,7 @@
/* This bit is the same as expand_builtin_longjmp. */
emit_move_insn (hard_frame_pointer_rtx, fp);
emit_move_insn (pv, lab);
emit_stack_restore (SAVE_NONLOCAL, stack, NULL_RTX);
emit_stack_restore (SAVE_NONLOCAL, stack);
emit_use (hard_frame_pointer_rtx);
emit_use (stack_pointer_rtx);

2
gcc/config/avr/avr.md
View File

@ -169,7 +169,7 @@
emit_clobber (gen_rtx_MEM (BLKmode, hard_frame_pointer_rtx));
emit_move_insn (hard_frame_pointer_rtx, r_fp);
emit_stack_restore (SAVE_NONLOCAL, r_sp, NULL_RTX);
emit_stack_restore (SAVE_NONLOCAL, r_sp);
emit_use (hard_frame_pointer_rtx);
emit_use (stack_pointer_rtx);

2
gcc/config/mips/mips.md
View File

@ -5649,7 +5649,7 @@
restores $gp as well. */
mips_emit_move (hard_frame_pointer_rtx, fp);
mips_emit_move (pv, lab);
emit_stack_restore (SAVE_NONLOCAL, stack, NULL_RTX);
emit_stack_restore (SAVE_NONLOCAL, stack);
mips_emit_move (gp, gpv);
emit_use (hard_frame_pointer_rtx);
emit_use (stack_pointer_rtx);

4
gcc/config/pa/pa.md
View File

@ -6865,7 +6865,7 @@
fp = force_reg (Pmode, fp);
emit_move_insn (hard_frame_pointer_rtx, plus_constant (fp, -8));
emit_stack_restore (SAVE_NONLOCAL, stack, NULL_RTX);
emit_stack_restore (SAVE_NONLOCAL, stack);
emit_use (hard_frame_pointer_rtx);
emit_use (stack_pointer_rtx);
@ -8310,7 +8310,7 @@ add,l %2,%3,%3\;bv,n %%r0(%3)"
emit_move_insn (hard_frame_pointer_rtx, plus_constant (fp, -8));
/* This bit is the same as expand_builtin_longjmp. */
emit_stack_restore (SAVE_NONLOCAL, stack, NULL_RTX);
emit_stack_restore (SAVE_NONLOCAL, stack);
emit_use (hard_frame_pointer_rtx);
emit_use (stack_pointer_rtx);

2
gcc/config/vax/vax.md
View File

@ -1624,7 +1624,7 @@
emit_clobber (gen_rtx_MEM (BLKmode, hard_frame_pointer_rtx));
emit_move_insn (hard_frame_pointer_rtx, fp);
emit_stack_restore (SAVE_NONLOCAL, stack, NULL_RTX);
emit_stack_restore (SAVE_NONLOCAL, stack);
emit_use (hard_frame_pointer_rtx);
emit_use (stack_pointer_rtx);

55
gcc/explow.c
View File

@ -961,13 +961,10 @@ round_push (rtx size)
/* Save the stack pointer for the purpose in SAVE_LEVEL. PSAVE is a pointer
to a previously-created save area. If no save area has been allocated,
this function will allocate one. If a save area is specified, it
must be of the proper mode.
The insns are emitted after insn AFTER, if nonzero, otherwise the insns
are emitted at the current position. */
must be of the proper mode. */
void
emit_stack_save (enum save_level save_level, rtx *psave, rtx after)
emit_stack_save (enum save_level save_level, rtx *psave)
{
rtx sa = *psave;
/* The default is that we use a move insn and save in a Pmode object. */
@ -1013,38 +1010,17 @@ emit_stack_save (enum save_level save_level, rtx *psave, rtx after)
}
}
if (after)
{
rtx seq;
start_sequence ();
do_pending_stack_adjust ();
/* We must validize inside the sequence, to ensure that any instructions
created by the validize call also get moved to the right place. */
if (sa != 0)
sa = validize_mem (sa);
emit_insn (fcn (sa, stack_pointer_rtx));
seq = get_insns ();
end_sequence ();
emit_insn_after (seq, after);
}
else
{
do_pending_stack_adjust ();
if (sa != 0)
sa = validize_mem (sa);
emit_insn (fcn (sa, stack_pointer_rtx));
}
do_pending_stack_adjust ();
if (sa != 0)
sa = validize_mem (sa);
emit_insn (fcn (sa, stack_pointer_rtx));
}
/* Restore the stack pointer for the purpose in SAVE_LEVEL. SA is the save
area made by emit_stack_save. If it is zero, we have nothing to do.
Put any emitted insns after insn AFTER, if nonzero, otherwise at
current position. */
area made by emit_stack_save. If it is zero, we have nothing to do. */
void
emit_stack_restore (enum save_level save_level, rtx sa, rtx after)
emit_stack_restore (enum save_level save_level, rtx sa)
{
/* The default is that we use a move insn. */
rtx (*fcn) (rtx, rtx) = gen_move_insn;
@ -1086,18 +1062,7 @@ emit_stack_restore (enum save_level save_level, rtx sa, rtx after)
discard_pending_stack_adjust ();
if (after)
{
rtx seq;
start_sequence ();
emit_insn (fcn (stack_pointer_rtx, sa));
seq = get_insns ();
end_sequence ();
emit_insn_after (seq, after);
}
else
emit_insn (fcn (stack_pointer_rtx, sa));
emit_insn (fcn (stack_pointer_rtx, sa));
}
/* Invoke emit_stack_save on the nonlocal_goto_save_area for the current
@ -1118,7 +1083,7 @@ update_nonlocal_goto_save_area (void)
integer_one_node, NULL_TREE, NULL_TREE);
r_save = expand_expr (t_save, NULL_RTX, VOIDmode, EXPAND_WRITE);
emit_stack_save (SAVE_NONLOCAL, &r_save, NULL_RTX);
emit_stack_save (SAVE_NONLOCAL, &r_save);
}
/* Return an rtx representing the address of an area of memory dynamically

4
gcc/expr.h
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@ -633,10 +633,10 @@ extern void anti_adjust_stack_and_probe (rtx, bool);
enum save_level {SAVE_BLOCK, SAVE_FUNCTION, SAVE_NONLOCAL};
/* Save the stack pointer at the specified level. */
extern void emit_stack_save (enum save_level, rtx *, rtx);
extern void emit_stack_save (enum save_level, rtx *);
/* Restore the stack pointer from a save area of the specified level. */
extern void emit_stack_restore (enum save_level, rtx, rtx);
extern void emit_stack_restore (enum save_level, rtx);
/* Invoke emit_stack_save for the nonlocal_goto_save_area. */
extern void update_nonlocal_goto_save_area (void);

11
gcc/function.c
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@ -5121,10 +5121,15 @@ expand_function_end (void)
if (! EXIT_IGNORE_STACK
&& cfun->calls_alloca)
{
rtx tem = 0;
rtx tem = 0, seq;
emit_stack_save (SAVE_FUNCTION, &tem, parm_birth_insn);
emit_stack_restore (SAVE_FUNCTION, tem, NULL_RTX);
start_sequence ();
emit_stack_save (SAVE_FUNCTION, &tem);
seq = get_insns ();
end_sequence ();
emit_insn_before (seq, parm_birth_insn);
emit_stack_restore (SAVE_FUNCTION, tem);
}
/* ??? This should no longer be necessary since stupid is no longer with

4
gcc/stmt.c
View File

@ -2006,7 +2006,7 @@ expand_stack_save (void)
rtx ret = NULL_RTX;
do_pending_stack_adjust ();
emit_stack_save (SAVE_BLOCK, &ret, NULL_RTX);
emit_stack_save (SAVE_BLOCK, &ret);
return ret;
}
@ -2017,7 +2017,7 @@ expand_stack_restore (tree var)
rtx sa = expand_normal (var);
sa = convert_memory_address (Pmode, sa);
emit_stack_restore (SAVE_BLOCK, sa, NULL_RTX);
emit_stack_restore (SAVE_BLOCK, sa);
}
/* Do the insertion of a case label into case_list. The labels are