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rx.c (add_pop_cfi_notes): New function.;

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* config/rx/rx.c (add_pop_cfi_notes): New function.;
	(pop_regs): Use it.

From-SVN: r257780
This commit is contained in:
Jeff Law 2018-02-16 23:37:22 -07:00 committed by Jeff Law
parent 1d56988159
commit 9f533a82db
2 changed files with 25 additions and 3 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2018-02-16 Jeff Law <law@redhat.com>
* config/rx/rx.c (add_pop_cfi_notes): New function.;
(pop_regs): Use it.
2018-02-16 Jakub Jelinek <jakub@redhat.com>
PR ipa/84425

23
gcc/config/rx/rx.c
View File

@ -1644,6 +1644,20 @@ mark_frame_related (rtx insn)
}
}
/* Create CFI notes for register pops. */
static void
add_pop_cfi_notes (rtx_insn *insn, unsigned int high, unsigned int low)
{
rtx t = plus_constant (Pmode, stack_pointer_rtx,
(high - low + 1) * UNITS_PER_WORD);
t = gen_rtx_SET (stack_pointer_rtx, t);
add_reg_note (insn, REG_CFA_ADJUST_CFA, t);
RTX_FRAME_RELATED_P (insn) = 1;
for (unsigned int i = low; i <= high; i++)
add_reg_note (insn, REG_CFA_RESTORE, gen_rtx_REG (word_mode, i));
}
static bool
ok_for_max_constant (HOST_WIDE_INT val)
{
@ -2029,11 +2043,14 @@ rx_can_use_simple_return (void)
static void
pop_regs (unsigned int high, unsigned int low)
{
rtx_insn *insn;
if (high == low)
emit_insn (gen_stack_pop (gen_rtx_REG (SImode, low)));
insn = emit_insn (gen_stack_pop (gen_rtx_REG (SImode, low)));
else
emit_insn (gen_stack_popm (GEN_INT (((high - low) + 1) * UNITS_PER_WORD),
gen_rx_popm_vector (low, high)));
insn = emit_insn (gen_stack_popm (GEN_INT (((high - low) + 1)
* UNITS_PER_WORD),
gen_rx_popm_vector (low, high)));
add_pop_cfi_notes (insn, high, low);
}
void