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re PR bootstrap/71435 (sparc bootstrap failure since r235625)

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PR bootstrap/71435
	* reload1.c (reload): Pass 0 to finish_spills when called because
	update_eliminables_and_spill returns true and remove did_spill.
	(finish_spills): Adjust comment and document GLOBAL parameter.

From-SVN: r237571
This commit is contained in:
Eric Botcazou 2016-06-18 11:10:10 +00:00 • committed by Eric Botcazou
parent 2b357a2ba7
commit 2dd6af4ef1
2 changed files with 18 additions and 12 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2016-06-18 Eric Botcazou <ebotcazou@adacore.com>
PR bootstrap/71435
* reload1.c (reload): Pass 0 to finish_spills when called because
update_eliminables_and_spill returns true and remove did_spill.
(finish_spills): Adjust comment and document GLOBAL parameter.
2016-06-17 DJ Delorie <dj@redhat.com>
PR target/71338

23
gcc/reload1.c
View file

@ -897,7 +897,6 @@ reload (rtx_insn *first, int global)
for (;;)
{
int something_changed;
int did_spill;
HOST_WIDE_INT starting_frame_size;
starting_frame_size = get_frame_size ();
@ -982,7 +981,7 @@ reload (rtx_insn *first, int global)
if (something_was_spilled || starting_frame_size != get_frame_size ())
{
if (update_eliminables_and_spill ())
finish_spills (global);
finish_spills (0);
continue;
}
@ -1001,8 +1000,6 @@ reload (rtx_insn *first, int global)
is used. */
CLEAR_REG_SET (&spilled_pseudos);
did_spill = 0;
something_changed = 0;
/* If we allocated any new memory locations, make another pass
@ -1019,7 +1016,7 @@ reload (rtx_insn *first, int global)
if (update_eliminables_and_spill ())
{
did_spill = 1;
finish_spills (0);
something_changed = 1;
}
else
@ -1027,11 +1024,10 @@ reload (rtx_insn *first, int global)
select_reload_regs ();
if (failure)
goto failed;
if (insns_need_reload)
something_changed |= finish_spills (global);
}
if (insns_need_reload != 0 || did_spill)
something_changed |= finish_spills (global);
if (! something_changed)
break;
@ -4281,10 +4277,13 @@ spill_hard_reg (unsigned int regno, int cant_eliminate)
SET_REGNO_REG_SET (&spilled_pseudos, i);
}
/* After find_reload_regs has been run for all insn that need reloads,
and/or spill_hard_regs was called, this function is used to actually
spill pseudo registers and try to reallocate them. It also sets up the
spill_regs array for use by choose_reload_regs. */
/* After spill_hard_reg was called and/or find_reload_regs was run for all
insns that need reloads, this function is used to actually spill pseudo
registers and try to reallocate them. It also sets up the spill_regs
array for use by choose_reload_regs.
GLOBAL nonzero means we should attempt to reallocate any pseudo registers
that we displace from hard registers. */
static int
finish_spills (int global)