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cfgcleanup.c (mentions_nonequal_regs): Use END_REGNO. 

gcc/
	* cfgcleanup.c (mentions_nonequal_regs): Use END_REGNO.
	* dse.c (note_add_store): Likewise.
	* ira-lives.c (mark_hard_reg_dead): Likewise.
	* loop-invariant.c (mark_reg_store): Likewise.
	(mark_reg_death): Likewise.
	* postreload.c (reload_combine): Likewise.
	(reload_combine_note_store): Likewise.
	(reload_combine_note_use): Likewise.
	* recog.c (peep2_reg_dead_p): Likewise.

From-SVN: r223336
This commit is contained in:
Richard Sandiford 2015-05-19 07:08:49 +00:00 committed by Richard Sandiford
parent 8a480dc3d0
commit 53d1bae901
7 changed files with 37 additions and 67 deletions
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12
gcc/ChangeLog
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@ -1,3 +1,15 @@
2015-05-19 Richard Sandiford <richard.sandiford@arm.com>
* cfgcleanup.c (mentions_nonequal_regs): Use END_REGNO.
* dse.c (note_add_store): Likewise.
* ira-lives.c (mark_hard_reg_dead): Likewise.
* loop-invariant.c (mark_reg_store): Likewise.
(mark_reg_death): Likewise.
* postreload.c (reload_combine): Likewise.
(reload_combine_note_store): Likewise.
(reload_combine_note_use): Likewise.
* recog.c (peep2_reg_dead_p): Likewise.
2015-05-19 Alan Modra <amodra@gmail.com>
* config/rs6000/predicates.md (gpc_reg_operand): Don't allow all

14
gcc/cfgcleanup.c
View File

@ -272,16 +272,10 @@ mentions_nonequal_regs (const_rtx x, regset nonequal)
const_rtx x = *iter;
if (REG_P (x))
{
unsigned int regno = REGNO (x);
if (REGNO_REG_SET_P (nonequal, regno))
return true;
if (regno < FIRST_PSEUDO_REGISTER)
{
int n = hard_regno_nregs[regno][GET_MODE (x)];
while (--n > 0)
if (REGNO_REG_SET_P (nonequal, regno + n))
return true;
}
unsigned int end_regno = END_REGNO (x);
for (unsigned int regno = REGNO (x); regno < end_regno; ++regno)
if (REGNO_REG_SET_P (nonequal, regno))
return true;
}
}
return false;

12
gcc/dse.c
View File

@ -855,7 +855,6 @@ note_add_store (rtx loc, const_rtx expr ATTRIBUTE_UNUSED, void *data)
{
rtx_insn *insn;
note_add_store_info *info = (note_add_store_info *) data;
int r, n;
if (!REG_P (loc))
return;
@ -874,15 +873,14 @@ note_add_store (rtx loc, const_rtx expr ATTRIBUTE_UNUSED, void *data)
available, fail now. */
if (!info->fixed_regs_live)
{
info->failure = true;
info->failure = true;
return;
}
/* Now check if this is a live fixed register. */
r = REGNO (loc);
n = hard_regno_nregs[r][GET_MODE (loc)];
while (--n >= 0)
if (REGNO_REG_SET_P (info->fixed_regs_live, r+n))
info->failure = true;
unsigned int end_regno = END_REGNO (loc);
for (unsigned int regno = REGNO (loc); regno < end_regno; ++regno)
if (REGNO_REG_SET_P (info->fixed_regs_live, regno))
info->failure = true;
}
/* Callback for for_each_inc_dec that emits an INSN that sets DEST to

2
gcc/ira-lives.c
View File

@ -478,7 +478,7 @@ mark_hard_reg_dead (rtx reg)
if (! TEST_HARD_REG_BIT (ira_no_alloc_regs, regno))
{
int last = regno + hard_regno_nregs[regno][GET_MODE (reg)];
int last = END_REGNO (reg);
enum reg_class aclass, pclass;
while (regno < last)

32
gcc/loop-invariant.c
View File

@ -1883,8 +1883,6 @@ static void
mark_reg_store (rtx reg, const_rtx setter ATTRIBUTE_UNUSED,
void *data ATTRIBUTE_UNUSED)
{
int regno;
if (GET_CODE (reg) == SUBREG)
reg = SUBREG_REG (reg);
@ -1893,20 +1891,9 @@ mark_reg_store (rtx reg, const_rtx setter ATTRIBUTE_UNUSED,
regs_set[n_regs_set++] = reg;
regno = REGNO (reg);
if (regno >= FIRST_PSEUDO_REGISTER)
unsigned int end_regno = END_REGNO (reg);
for (unsigned int regno = REGNO (reg); regno < end_regno; ++regno)
mark_regno_live (regno);
else
{
int last = regno + hard_regno_nregs[regno][GET_MODE (reg)];
while (regno < last)
{
mark_regno_live (regno);
regno++;
}
}
}
/* Mark clobbering register REG. */
@ -1921,20 +1908,9 @@ mark_reg_clobber (rtx reg, const_rtx setter, void *data)
static void
mark_reg_death (rtx reg)
{
int regno = REGNO (reg);
if (regno >= FIRST_PSEUDO_REGISTER)
unsigned int end_regno = END_REGNO (reg);
for (unsigned int regno = REGNO (reg); regno < end_regno; ++regno)
mark_regno_death (regno);
else
{
int last = regno + hard_regno_nregs[regno][GET_MODE (reg)];
while (regno < last)
{
mark_regno_death (regno);
regno++;
}
}
}
/* Mark occurrence of registers in X for the current loop. */

23
gcc/postreload.c
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@ -1374,12 +1374,8 @@ reload_combine (void)
if ((GET_CODE (setuse) == USE || GET_CODE (setuse) == CLOBBER)
&& REG_P (usage_rtx))
{
unsigned int i;
unsigned int start_reg = REGNO (usage_rtx);
unsigned int num_regs
= hard_regno_nregs[start_reg][GET_MODE (usage_rtx)];
unsigned int end_reg = start_reg + num_regs - 1;
for (i = start_reg; i <= end_reg; i++)
unsigned int end_regno = END_REGNO (usage_rtx);
for (unsigned int i = REGNO (usage_rtx); i < end_regno; ++i)
if (GET_CODE (XEXP (link, 0)) == CLOBBER)
{
reg_state[i].use_index = RELOAD_COMBINE_MAX_USES;
@ -1461,9 +1457,8 @@ reload_combine_note_store (rtx dst, const_rtx set, void *data ATTRIBUTE_UNUSED)
|| GET_CODE (dst) == PRE_DEC || GET_CODE (dst) == POST_DEC
|| GET_CODE (dst) == PRE_MODIFY || GET_CODE (dst) == POST_MODIFY)
{
regno = REGNO (XEXP (dst, 0));
mode = GET_MODE (XEXP (dst, 0));
for (i = hard_regno_nregs[regno][mode] - 1 + regno; i >= regno; i--)
unsigned int end_regno = END_REGNO (XEXP (dst, 0));
for (unsigned int i = REGNO (XEXP (dst, 0)); i < end_regno; ++i)
{
/* We could probably do better, but for now mark the register
as used in an unknown fashion and set/clobbered at this
@ -1533,13 +1528,11 @@ reload_combine_note_use (rtx *xp, rtx_insn *insn, int ruid, rtx containing_mem)
/* If this is the USE of a return value, we can't change it. */
if (REG_P (XEXP (x, 0)) && REG_FUNCTION_VALUE_P (XEXP (x, 0)))
{
/* Mark the return register as used in an unknown fashion. */
/* Mark the return register as used in an unknown fashion. */
rtx reg = XEXP (x, 0);
int regno = REGNO (reg);
int nregs = hard_regno_nregs[regno][GET_MODE (reg)];
while (--nregs >= 0)
reg_state[regno + nregs].use_index = -1;
unsigned int end_regno = END_REGNO (reg);
for (unsigned int regno = REGNO (reg); regno < end_regno; ++regno)
reg_state[regno].use_index = -1;
return;
}
break;

9
gcc/recog.c
View File

@ -3128,18 +3128,15 @@ peep2_regno_dead_p (int ofs, int regno)
int
peep2_reg_dead_p (int ofs, rtx reg)
{
int regno, n;
gcc_assert (ofs < MAX_INSNS_PER_PEEP2 + 1);
ofs = peep2_buf_position (peep2_current + ofs);
gcc_assert (peep2_insn_data[ofs].insn != NULL_RTX);
regno = REGNO (reg);
n = hard_regno_nregs[regno][GET_MODE (reg)];
while (--n >= 0)
if (REGNO_REG_SET_P (peep2_insn_data[ofs].live_before, regno + n))
unsigned int end_regno = END_REGNO (reg);
for (unsigned int regno = REGNO (reg); regno < end_regno; ++regno)
if (REGNO_REG_SET_P (peep2_insn_data[ofs].live_before, regno))
return 0;
return 1;
}