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re PR debug/65678 (internal compiler error: in gen_rtx_SUBREG, at emit-rtl.c:909)

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2015-04-07  Vladimir Makarov  <vmakarov@redhat.com>

	PR target/65678
	* lra-remat.c (do_remat): Process input and non-input insn
	registers separately.

From-SVN: r221901
This commit is contained in:
Vladimir Makarov 2015-04-07 15:01:07 +00:00 • committed by Vladimir Makarov
parent e488c24ec0
commit 218823d74e
2 changed files with 19 additions and 10 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2015-04-07 Vladimir Makarov <vmakarov@redhat.com>
PR target/65678
* lra-remat.c (do_remat): Process input and non-input insn
registers separately.
2015-04-07 Jakub Jelinek <jakub@redhat.com>
PR debug/65678

23
gcc/lra-remat.c
View file

@ -1234,22 +1234,25 @@ do_remat (void)
for (i = 0; i < nregs; i++)
CLEAR_HARD_REG_BIT (live_hard_regs, hard_regno + i);
}
else if (reg->type != OP_IN
&& find_regno_note (insn, REG_UNUSED, reg->regno) == NULL)
{
if ((hard_regno = get_hard_regs (reg, nregs)) < 0)
continue;
for (i = 0; i < nregs; i++)
SET_HARD_REG_BIT (live_hard_regs, hard_regno + i);
}
/* Process also hard regs (e.g. CC register) which are part
of insn definition. */
for (reg = static_id->hard_regs; reg != NULL; reg = reg->next)
if (reg->type == OP_IN
&& find_regno_note (insn, REG_DEAD, reg->regno) != NULL)
CLEAR_HARD_REG_BIT (live_hard_regs, reg->regno);
else if (reg->type != OP_IN
&& find_regno_note (insn, REG_UNUSED, reg->regno) == NULL)
/* Inputs have been processed, now process outputs. */
for (reg = id->regs; reg != NULL; reg = reg->next)
if (reg->type != OP_IN
&& find_regno_note (insn, REG_UNUSED, reg->regno) == NULL)
{
if ((hard_regno = get_hard_regs (reg, nregs)) < 0)
continue;
for (i = 0; i < nregs; i++)
SET_HARD_REG_BIT (live_hard_regs, hard_regno + i);
}
for (reg = static_id->hard_regs; reg != NULL; reg = reg->next)
if (reg->type != OP_IN
&& find_regno_note (insn, REG_UNUSED, reg->regno) == NULL)
SET_HARD_REG_BIT (live_hard_regs, reg->regno);
}
}