/* Elt N nonzero if reg_last_reload_reg[N] has been set in this insn
for an output reload that stores into reg N. */
-static char *reg_has_output_reload;
+static regset_head reg_has_output_reload;
/* Indicates which hard regs are reload-registers for an output reload
in the current insn. */
{
rtx *pnote;
+ /* Clean up invalid ASMs so that they don't confuse later passes.
+ See PR 21299. */
+ if (asm_noperands (PATTERN (insn)) >= 0)
+ {
+ extract_insn (insn);
+ if (!constrain_operands (1))
+ {
+ error_for_asm (insn,
+ "%<asm%> operand has impossible constraints");
+ delete_insn (insn);
+ continue;
+ }
+ }
+
if (CALL_P (insn))
replace_pseudos_in (& CALL_INSN_FUNCTION_USAGE (insn),
VOIDmode, CALL_INSN_FUNCTION_USAGE (insn));
&& reg_equiv_memory_loc[i] == 0)
{
rtx x;
+ enum machine_mode mode = GET_MODE (regno_reg_rtx[i]);
unsigned int inherent_size = PSEUDO_REGNO_BYTES (i);
+ unsigned int inherent_align = GET_MODE_ALIGNMENT (mode);
unsigned int total_size = MAX (inherent_size, reg_max_ref_width[i]);
+ unsigned int min_align = reg_max_ref_width[i] * BITS_PER_UNIT;
int adjust = 0;
/* Each pseudo reg has an inherent size which comes from its own mode,
if (from_reg == -1)
{
/* No known place to spill from => no slot to reuse. */
- x = assign_stack_local (GET_MODE (regno_reg_rtx[i]), total_size,
- inherent_size == total_size ? 0 : -1);
+ x = assign_stack_local (mode, total_size,
+ min_align > inherent_align
+ || total_size > inherent_size ? -1 : 0);
if (BYTES_BIG_ENDIAN)
/* Cancel the big-endian correction done in assign_stack_local.
Get the address of the beginning of the slot.
else if (spill_stack_slot[from_reg] != 0
&& spill_stack_slot_width[from_reg] >= total_size
&& (GET_MODE_SIZE (GET_MODE (spill_stack_slot[from_reg]))
- >= inherent_size))
+ >= inherent_size)
+ && MEM_ALIGN (spill_stack_slot[from_reg]) >= min_align)
x = spill_stack_slot[from_reg];
/* Allocate a bigger slot. */
{
/* Compute maximum size needed, both for inherent size
and for total size. */
- enum machine_mode mode = GET_MODE (regno_reg_rtx[i]);
rtx stack_slot;
if (spill_stack_slot[from_reg])
mode = GET_MODE (spill_stack_slot[from_reg]);
if (spill_stack_slot_width[from_reg] > total_size)
total_size = spill_stack_slot_width[from_reg];
+ if (MEM_ALIGN (spill_stack_slot[from_reg]) > min_align)
+ min_align = MEM_ALIGN (spill_stack_slot[from_reg]);
}
/* Make a slot with that size. */
x = assign_stack_local (mode, total_size,
- inherent_size == total_size ? 0 : -1);
+ min_align > inherent_align
+ || total_size > inherent_size ? -1 : 0);
stack_slot = x;
/* All pseudos mapped to this slot can alias each other. */
case SUBREG:
if (REG_P (SUBREG_REG (x))
- && GET_MODE_SIZE (GET_MODE (x)) > GET_MODE_SIZE (GET_MODE (SUBREG_REG (x))))
+ && (GET_MODE_SIZE (GET_MODE (x))
+ > reg_max_ref_width[REGNO (SUBREG_REG (x))]))
reg_max_ref_width[REGNO (SUBREG_REG (x))]
= GET_MODE_SIZE (GET_MODE (x));
return;
memset (spill_reg_rtx, 0, sizeof spill_reg_rtx);
memset (spill_reg_store, 0, sizeof spill_reg_store);
reg_last_reload_reg = XCNEWVEC (rtx, max_regno);
- reg_has_output_reload = XNEWVEC (char, max_regno);
+ INIT_REG_SET (®_has_output_reload);
CLEAR_HARD_REG_SET (reg_reloaded_valid);
CLEAR_HARD_REG_SET (reg_reloaded_call_part_clobbered);
regset_head regs_to_forget;
INIT_REG_SET (®s_to_forget);
note_stores (PATTERN (insn), forget_old_reloads_1, ®s_to_forget);
+
/* If this is a USE and CLOBBER of a MEM, ensure that any
references to eliminable registers have been removed. */
rtx's for those pseudo regs. */
else
{
- memset (reg_has_output_reload, 0, max_regno);
+ CLEAR_REG_SET (®_has_output_reload);
CLEAR_HARD_REG_SET (reg_is_output_reload);
find_reloads (insn, 1, spill_indirect_levels, live_known,
the reload for inheritance. */
SET_HARD_REG_BIT (reg_is_output_reload,
REGNO (reload_reg));
- reg_has_output_reload[REGNO (XEXP (in_reg, 0))] = 1;
+ SET_REGNO_REG_SET (®_has_output_reload,
+ REGNO (XEXP (in_reg, 0)));
}
else
forget_old_reloads_1 (XEXP (in_reg, 0), NULL_RTX,
{
SET_HARD_REG_BIT (reg_is_output_reload,
REGNO (rld[i].reg_rtx));
- reg_has_output_reload[REGNO (XEXP (in_reg, 0))] = 1;
+ SET_REGNO_REG_SET (®_has_output_reload,
+ REGNO (XEXP (in_reg, 0)));
}
}
}
/* Clean up. */
free (reg_last_reload_reg);
- free (reg_has_output_reload);
+ CLEAR_REG_SET (®_has_output_reload);
}
/* Discard all record of any value reloaded from X,
while (nr-- > 0)
/* But don't forget a copy if this is the output reload
that establishes the copy's validity. */
- if (n_reloads == 0 || reg_has_output_reload[regno + nr] == 0)
+ if (n_reloads == 0
+ || !REGNO_REG_SET_P (®_has_output_reload, regno + nr))
reg_last_reload_reg[regno + nr] = 0;
}
}
CLEAR_HARD_REG_BIT (reg_reloaded_call_part_clobbered, reg);
spill_reg_store[reg] = 0;
}
- if (n_reloads == 0 || reg_has_output_reload[reg] == 0)
+ if (n_reloads == 0
+ || !REGNO_REG_SET_P (®_has_output_reload, reg))
reg_last_reload_reg[reg] = 0;
}
}
nr = hard_regno_nregs[nregno][rld[r].mode];
while (--nr >= 0)
- reg_has_output_reload[nregno + nr] = 1;
+ SET_REGNO_REG_SET (®_has_output_reload,
+ nregno + nr);
if (i >= 0)
{
if (REG_P (reg)
&& REGNO (reg) >= FIRST_PSEUDO_REGISTER
- && ! reg_has_output_reload[REGNO (reg)])
+ && !REGNO_REG_SET_P (®_has_output_reload, REGNO (reg)))
{
int nregno = REGNO (reg);
&& rld[r].in != 0
&& ((REG_P (rld[r].in)
&& REGNO (rld[r].in) >= FIRST_PSEUDO_REGISTER
- && ! reg_has_output_reload[REGNO (rld[r].in)])
+ && !REGNO_REG_SET_P (®_has_output_reload,
+ REGNO (rld[r].in)))
|| (REG_P (rld[r].in_reg)
- && ! reg_has_output_reload[REGNO (rld[r].in_reg)]))
+ && !REGNO_REG_SET_P (®_has_output_reload,
+ REGNO (rld[r].in_reg))))
&& ! reg_set_p (rld[r].reg_rtx, PATTERN (insn)))
{
int nregno;
/* We have to set reg_has_output_reload here, or else
forget_old_reloads_1 will clear reg_last_reload_reg
right away. */
- reg_has_output_reload[nregno] = 1;
+ SET_REGNO_REG_SET (®_has_output_reload,
+ nregno);
}
}
else
inc_for_reload (rtx reloadreg, rtx in, rtx value, int inc_amount)
{
/* REG or MEM to be copied and incremented. */
- rtx incloc = XEXP (value, 0);
+ rtx incloc = find_replacement (&XEXP (value, 0));
/* Nonzero if increment after copying. */
int post = (GET_CODE (value) == POST_DEC || GET_CODE (value) == POST_INC
|| GET_CODE (value) == POST_MODIFY);
rtx add_insn;
int code;
rtx store;
- rtx real_in = in == value ? XEXP (in, 0) : in;
+ rtx real_in = in == value ? incloc : in;
/* No hard register is equivalent to this register after
inc/dec operation. If REG_LAST_RELOAD_REG were nonzero,
if (GET_CODE (value) == PRE_MODIFY || GET_CODE (value) == POST_MODIFY)
{
gcc_assert (GET_CODE (XEXP (value, 1)) == PLUS);
- inc = XEXP (XEXP (value, 1), 1);
+ inc = find_replacement (&XEXP (XEXP (value, 1), 1));
}
else
{
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