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h8300.c (F): Add "in_epilogue" flag.

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* config/h8300/h8300.c (F): Add "in_epilogue" flag.
(Fpa): Pass it
(h8300_emit_stack_adjustment): Propogate it.
(push): Pass it.
(h8300_expand_prologue): Likewise.
(h8300_expand_epilogue): Likewise.

From-SVN: r156056
This commit is contained in:
DJ Delorie 2010-01-20 00:58:59 -05:00 • committed by DJ Delorie
parent e80b7e74ee
commit c72ea08687
2 changed files with 23 additions and 13 deletions
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9
gcc/ChangeLog
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@ -1,3 +1,12 @@
2010-01-20 DJ Delorie <dj@redhat.com>
* config/h8300/h8300.c (F): Add "in_epilogue" flag.
(Fpa): Pass it
(h8300_emit_stack_adjustment): Propogate it.
(push): Pass it.
(h8300_expand_prologue): Likewise.
(h8300_expand_epilogue): Likewise.
2010-01-19 Michael Matz <matz@suse.de>
PR tree-optimization/41783

27
gcc/config/h8300/h8300.c
View file

@ -83,7 +83,7 @@ static int h8300_interrupt_function_p (tree);
static int h8300_saveall_function_p (tree);
static int h8300_monitor_function_p (tree);
static int h8300_os_task_function_p (tree);
static void h8300_emit_stack_adjustment (int, HOST_WIDE_INT);
static void h8300_emit_stack_adjustment (int, HOST_WIDE_INT, bool);
static HOST_WIDE_INT round_frame_size (HOST_WIDE_INT);
static unsigned int compute_saved_regs (void);
static void push (int);
@ -509,9 +509,10 @@ byte_reg (rtx x, int b)
/* We use this to wrap all emitted insns in the prologue. */
static rtx
F (rtx x)
F (rtx x, bool set_it)
{
RTX_FRAME_RELATED_P (x) = 1;
if (set_it)
RTX_FRAME_RELATED_P (x) = 1;
return x;
}
@ -528,7 +529,7 @@ Fpa (rtx par)
int i;
for (i = 0; i < len; i++)
F (XVECEXP (par, 0, i));
F (XVECEXP (par, 0, i), true);
return par;
}
@ -537,7 +538,7 @@ Fpa (rtx par)
SIZE to adjust the stack pointer. */
static void
h8300_emit_stack_adjustment (int sign, HOST_WIDE_INT size)
h8300_emit_stack_adjustment (int sign, HOST_WIDE_INT size, bool in_prologue)
{
/* If the frame size is 0, we don't have anything to do. */
if (size == 0)
@ -552,9 +553,9 @@ h8300_emit_stack_adjustment (int sign, HOST_WIDE_INT size)
&& !(cfun->static_chain_decl != NULL && sign < 0))
{
rtx r3 = gen_rtx_REG (Pmode, 3);
F (emit_insn (gen_movhi (r3, GEN_INT (sign * size))));
F (emit_insn (gen_movhi (r3, GEN_INT (sign * size))), in_prologue);
F (emit_insn (gen_addhi3 (stack_pointer_rtx,
stack_pointer_rtx, r3)));
stack_pointer_rtx, r3)), in_prologue);
}
else
{
@ -568,11 +569,11 @@ h8300_emit_stack_adjustment (int sign, HOST_WIDE_INT size)
rtx x = emit_insn (gen_addhi3 (stack_pointer_rtx,
stack_pointer_rtx, GEN_INT (sign * size)));
if (size < 4)
F (x);
F (x, in_prologue);
}
else
F (emit_insn (gen_addsi3 (stack_pointer_rtx,
stack_pointer_rtx, GEN_INT (sign * size))));
stack_pointer_rtx, GEN_INT (sign * size))), in_prologue);
}
}
@ -622,7 +623,7 @@ push (int rn)
x = gen_push_h8300hs_advanced (reg);
else
x = gen_push_h8300hs_normal (reg);
x = F (emit_insn (x));
x = F (emit_insn (x), 1);
REG_NOTES (x) = gen_rtx_EXPR_LIST (REG_INC, stack_pointer_rtx, 0);
}
@ -854,7 +855,7 @@ h8300_expand_prologue (void)
{
/* Push fp. */
push (HARD_FRAME_POINTER_REGNUM);
F (emit_move_insn (hard_frame_pointer_rtx, stack_pointer_rtx));
F (emit_move_insn (hard_frame_pointer_rtx, stack_pointer_rtx), 1);
}
/* Push the rest of the registers in ascending order. */
@ -885,7 +886,7 @@ h8300_expand_prologue (void)
}
/* Leave room for locals. */
h8300_emit_stack_adjustment (-1, round_frame_size (get_frame_size ()));
h8300_emit_stack_adjustment (-1, round_frame_size (get_frame_size ()), true);
}
/* Return nonzero if we can use "rts" for the function currently being
@ -920,7 +921,7 @@ h8300_expand_epilogue (void)
returned_p = false;
/* Deallocate locals. */
h8300_emit_stack_adjustment (1, frame_size);
h8300_emit_stack_adjustment (1, frame_size, false);
/* Pop the saved registers in descending order. */
saved_regs = compute_saved_regs ();