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authorKazu Hirata <kazu@cs.umass.edu>2002-05-09 01:42:28 +0000
committerKazu Hirata <kazu@cs.umass.edu>2002-05-09 01:42:28 +0000
commitae347b710ff5ef85f9f2d3083c4a4968c853ee0a (patch)
treea546d2736172ee466c2568e02cd89721a1acfd42 /gcc/regclass.c
parent718cf4419b9c009dadacd60eae7ee4f0bd70c2af (diff)
* read-rtl.c: Fix formatting.
* real.c: Likewise. * recog.c: Likewise. * regclass.c: Likewise. * regmove.c: Likewise. * reg-stack.c: Likewise. * reload1.c: Likewise. * reload.c: Likewise. * resource.c: Likewise. * rtlanal.c: Likewise. * rtl.c: Likewise. * rtl-error.c: Likewise. git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@53313 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/regclass.c')
-rw-r--r--gcc/regclass.c66
1 files changed, 33 insertions, 33 deletions
diff --git a/gcc/regclass.c b/gcc/regclass.c
index 0d74e38927d..decab26b4af 100644
--- a/gcc/regclass.c
+++ b/gcc/regclass.c
@@ -97,13 +97,13 @@ static const char initial_call_used_regs[] = CALL_USED_REGISTERS;
/* This is much like call_used_regs, except it doesn't have to
be a superset of FIXED_REGISTERS. This vector indicates
- what is really call clobbered, and is used when defining
+ what is really call clobbered, and is used when defining
regs_invalidated_by_call. */
#ifdef CALL_REALLY_USED_REGISTERS
char call_really_used_regs[] = CALL_REALLY_USED_REGISTERS;
#endif
-
+
/* Indexed by hard register number, contains 1 for registers that are
fixed use or call used registers that cannot hold quantities across
calls even if we are willing to save and restore them. call fixed
@@ -155,7 +155,7 @@ HARD_REG_SET reg_class_contents[N_REG_CLASSES];
#define N_REG_INTS \
((FIRST_PSEUDO_REGISTER + (32 - 1)) / 32)
-static const unsigned int_reg_class_contents[N_REG_CLASSES][N_REG_INTS]
+static const unsigned int_reg_class_contents[N_REG_CLASSES][N_REG_INTS]
= REG_CLASS_CONTENTS;
/* For each reg class, number of regs it contains. */
@@ -458,7 +458,7 @@ init_reg_sets_1 ()
RETURN_POPS_ARGS, in which case an explicit CLOBBER will be present.
If we are generating PIC code, the PIC offset table register is
preserved across calls, though the target can override that. */
-
+
if (i == STACK_POINTER_REGNUM || i == FRAME_POINTER_REGNUM)
;
#if HARD_FRAME_POINTER_REGNUM != FRAME_POINTER_REGNUM
@@ -558,7 +558,7 @@ init_reg_sets_1 ()
{
HARD_REG_SET c;
COMPL_HARD_REG_SET (c, reg_class_contents[CLASS_CANNOT_CHANGE_MODE]);
-
+
for (i = 0; i < N_REG_CLASSES; i++)
{
GO_IF_HARD_REG_SUBSET (reg_class_contents[i], c, ok_class);
@@ -774,8 +774,8 @@ fix_register (name, fixed, call_used)
static const char * const what_option[2][2] = {
{ "call-saved", "call-used" },
{ "no-such-option", "fixed" }};
-
- error ("can't use '%s' as a %s register", name,
+
+ error ("can't use '%s' as a %s register", name,
what_option[fixed][call_used]);
}
else
@@ -882,7 +882,7 @@ static void dump_regclass PARAMS ((FILE *));
static void record_reg_classes PARAMS ((int, int, rtx *, enum machine_mode *,
const char **, rtx,
struct costs *, struct reg_pref *));
-static int copy_cost PARAMS ((rtx, enum machine_mode,
+static int copy_cost PARAMS ((rtx, enum machine_mode,
enum reg_class, int));
static void record_address_regs PARAMS ((rtx, enum reg_class, int));
#ifdef FORBIDDEN_INC_DEC_CLASSES
@@ -987,7 +987,7 @@ record_operand_costs (insn, op_costs, reg_pref)
Then handle any address registers. Finally record the desired
classes for any pseudos, doing it twice if some pair of
operands are commutative. */
-
+
for (i = 0; i < recog_data.n_operands; i++)
{
op_costs[i] = init_cost;
@@ -1030,12 +1030,12 @@ record_operand_costs (insn, op_costs, reg_pref)
xconstraints[i] = constraints[i+1];
xconstraints[i+1] = constraints[i];
record_reg_classes (recog_data.n_alternatives, recog_data.n_operands,
- recog_data.operand, modes,
+ recog_data.operand, modes,
xconstraints, insn, op_costs, reg_pref);
}
record_reg_classes (recog_data.n_alternatives, recog_data.n_operands,
- recog_data.operand, modes,
+ recog_data.operand, modes,
constraints, insn, op_costs, reg_pref);
}
@@ -1193,7 +1193,7 @@ regclass (f, nregs, dump)
#ifdef CLASS_CANNOT_CHANGE_MODE
reg_changes_mode = BITMAP_XMALLOC ();
-#endif
+#endif
#ifdef FORBIDDEN_INC_DEC_CLASSES
@@ -1258,7 +1258,7 @@ regclass (f, nregs, dump)
int index;
if (dump)
- fprintf (dump, "\n\nPass %i\n\n",pass);
+ fprintf (dump, "\n\nPass %i\n\n",pass);
/* Zero out our accumulation of the cost of each class for each reg. */
memset ((char *) costs, 0, nregs * sizeof (struct costs));
@@ -1277,7 +1277,7 @@ regclass (f, nregs, dump)
insn = scan_one_insn (insn, pass);
}
else
- for (index = 0; index < n_basic_blocks; index++)
+ for (index = 0; index < n_basic_blocks; index++)
{
basic_block bb = BASIC_BLOCK (index);
@@ -1293,17 +1293,17 @@ regclass (f, nregs, dump)
break;
}
}
-
+
/* Now for each register look at how desirable each class is
and find which class is preferred. Store that in
`prefclass'. Record in `altclass' the largest register
class any of whose registers is better than memory. */
-
+
if (pass == 0)
reg_pref = reg_pref_buffer;
if (dump)
- {
+ {
dump_regclass (dump);
fprintf (dump,"\n");
}
@@ -1365,12 +1365,12 @@ regclass (f, nregs, dump)
#endif
)
alt = reg_class_subunion[(int) alt][class];
-
+
/* If we don't add any classes, nothing to try. */
if (alt == best)
alt = NO_REGS;
- if (dump
+ if (dump
&& (reg_pref[i].prefclass != (int) best
|| reg_pref[i].altclass != (int) alt))
{
@@ -1418,7 +1418,7 @@ regclass (f, nregs, dump)
This procedure works alternative by alternative. For each alternative
we assume that we will be able to allocate all pseudos to their ideal
register class and calculate the cost of using that alternative. Then
- we compute for each operand that is a pseudo-register, the cost of
+ we compute for each operand that is a pseudo-register, the cost of
having the pseudo allocated to each register class and using it in that
alternative. To this cost is added the cost of the alternative.
@@ -1466,7 +1466,7 @@ record_reg_classes (n_alts, n_ops, ops, modes,
classes[i] = NO_REGS;
allows_mem[i] = 0;
- /* If this operand has no constraints at all, we can conclude
+ /* If this operand has no constraints at all, we can conclude
nothing about it since anything is valid. */
if (*p == 0)
@@ -1512,7 +1512,7 @@ record_reg_classes (n_alts, n_ops, ops, modes,
|| REGNO (ops[j]) < FIRST_PSEUDO_REGISTER)
{
/* This op is a pseudo but the one it matches is not. */
-
+
/* If we can't put the other operand into a register, this
alternative can't be used. */
@@ -1543,7 +1543,7 @@ record_reg_classes (n_alts, n_ops, ops, modes,
+ (recog_data.operand_type[i] != OP_IN
? may_move_out_cost[mode][(int) classes[i]][class]
: 0));
-
+
/* If the alternative actually allows memory, make things
a bit cheaper since we won't need an extra insn to
load it. */
@@ -1726,7 +1726,7 @@ record_reg_classes (n_alts, n_ops, ops, modes,
{
/* We must always fail if the operand is a REG, but
we did not find a suitable class.
-
+
Otherwise we may perform an uninitialized read
from this_op_costs after the `continue' statement
below. */
@@ -1826,7 +1826,7 @@ record_reg_classes (n_alts, n_ops, ops, modes,
and one operand is a pseudo with the other a hard reg or a pseudo
that prefers a register that is in its own register class then
we may want to adjust the cost of that register class to -1.
-
+
Avoid the adjustment if the source does not die to avoid stressing of
register allocator by preferrencing two coliding registers into single
class.
@@ -1906,7 +1906,7 @@ copy_cost (x, mode, class, to_p)
class = PREFERRED_RELOAD_CLASS (x, class);
#ifdef HAVE_SECONDARY_RELOADS
- /* If we need a secondary reload (we assume here that we are using
+ /* If we need a secondary reload (we assume here that we are using
the secondary reload as an intermediate, not a scratch register), the
cost is that to load the input into the intermediate register, then
to copy them. We use a special value of TO_P to avoid recursion. */
@@ -2001,7 +2001,7 @@ record_address_regs (x, class, scale)
/* If index and base registers are the same on this machine, just
record registers in any non-constant operands. We assume here,
- as well as in the tests below, that all addresses are in
+ as well as in the tests below, that all addresses are in
canonical form. */
else if (INDEX_REG_CLASS == MODE_BASE_REG_CLASS (VOIDmode))
@@ -2192,7 +2192,7 @@ allocate_reg_info (num_regs, new_p, renumber_p)
{
VARRAY_REG_INIT (reg_n_info, regno_allocated, "reg_n_info");
renumber = (short *) xmalloc (size_renumber);
- reg_pref_buffer = (struct reg_pref *) xmalloc (regno_allocated
+ reg_pref_buffer = (struct reg_pref *) xmalloc (regno_allocated
* sizeof (struct reg_pref));
}
@@ -2205,7 +2205,7 @@ allocate_reg_info (num_regs, new_p, renumber_p)
free ((char *) renumber);
free ((char *) reg_pref);
renumber = (short *) xmalloc (size_renumber);
- reg_pref_buffer = (struct reg_pref *) xmalloc (regno_allocated
+ reg_pref_buffer = (struct reg_pref *) xmalloc (regno_allocated
* sizeof (struct reg_pref));
}
@@ -2213,7 +2213,7 @@ allocate_reg_info (num_regs, new_p, renumber_p)
{
renumber = (short *) xrealloc ((char *) renumber, size_renumber);
reg_pref_buffer = (struct reg_pref *) xrealloc ((char *) reg_pref_buffer,
- regno_allocated
+ regno_allocated
* sizeof (struct reg_pref));
}
}
@@ -2232,7 +2232,7 @@ allocate_reg_info (num_regs, new_p, renumber_p)
{
/* Loop through each of the segments allocated for the actual
reg_info pages, and set up the pointers, zero the pages, etc. */
- for (reg_data = reg_info_head;
+ for (reg_data = reg_info_head;
reg_data && reg_data->max_index >= min;
reg_data = reg_data->next)
{
@@ -2318,7 +2318,7 @@ free_reg_info ()
int max_parallel;
-/* Used as a temporary to record the largest number of registers in
+/* Used as a temporary to record the largest number of registers in
PARALLEL in a SET_DEST. This is added to max_parallel. */
static int max_set_parallel;
@@ -2467,7 +2467,7 @@ reg_scan_mark_refs (x, insn, note_flag, min_regno)
Likewise if it is setting the destination from an address or from a
value equivalent to an address or to the sum of an address and
something else.
-
+
But don't do any of this if the pseudo corresponds to a user
variable since it should have already been set as a pointer based
on the type. */