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riscv-gcc-1
Commit c62c2659 by Bernd Schmidt Committed by Bernd Schmidt
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Move scheduling visualization code to separate file. 

From-SVN: r37974
parent 1708fd40
Showing with 970 additions and 901 deletions
gcc/ChangeLog
2000-12-03 Bernd Schmidt <bernds@redhat.co.uk>
* Makefile.in (OBJS): Add sched-vis.o.
(sched-vis.o): New rule.
* haifa-sched.c (get_unit_last_insn): New function.
(sched_dump, insn_unit, actual_hazard_this_instance): No longer
static.
(schedule_block): Call visualize_alloc and visualize_free. Delete
spurious return statement.
(init_target_units, insn_print_units, get_visual_tbl_length,
init_block_visualization, print_block_visualization, safe_concat,
visualize_scheduled_inns, visualize_no_unit, visualize_stall_cycles,
print_exp, print_value, print_pattern, print_insn, target_units,
MAX_VISUAL_LINES, INSN_LEN, n_visual_lines, visual_tbl,
n_vis_no_unit, vis_no_unit): Move scheduling visualization
functions/variables...
* sched-vis.c: ...here. New file.
(visualize_alloc, visualize_free): New functions.
(visualize_scheduled_insns, visualize_stall_cycles,
print_block_visualization): Lose basic block argument. All callers
changed.
(visualize_scheduled_insns): Use new function get_unit_last_insn.
* sched-int.h: New file.
* Makefile.in (haifa-sched.o): Depend on it.
* haifa-sched.c: Include it.
......
gcc/Makefile.in
......@@ -737,7 +737,7 @@ OBJS = diagnostic.o version.o tree.o print-tree.o stor-layout.o fold-const.o \
mbchar.o splay-tree.o graph.o sbitmap.o resource.o hash.o predict.o \
lists.o ggc-common.o $(GGC) stringpool.o simplify-rtx.o ssa.o bb-reorder.o \
sibcall.o conflict.o timevar.o ifcvt.o dominance.o dependence.o dce.o \
hashtab.o
sched-vis.o hashtab.o
BACKEND = toplev.o libbackend.a
......@@ -1455,6 +1455,8 @@ regmove.o : regmove.c $(CONFIG_H) system.h $(RTL_H) insn-config.h \
haifa-sched.o : haifa-sched.c $(CONFIG_H) system.h $(RTL_H) sched-int.h \
$(BASIC_BLOCK_H) $(REGS_H) hard-reg-set.h flags.h insn-config.h function.h \
$(INSN_ATTR_H) toplev.h $(RECOG_H) except.h
sched-vis.o : sched-vis.c $(CONFIG_H) system.h $(RTL_H) sched-int.h \
$(INSN_ATTR_H) $(REGS_H)
final.o : final.c $(CONFIG_H) system.h $(RTL_H) $(TREE_H) flags.h intl.h \
$(REGS_H) $(RECOG_H) conditions.h insn-config.h $(INSN_ATTR_H) function.h \
real.h output.h hard-reg-set.h insn-flags.h insn-codes.h gstab.h except.h \
......
gcc/haifa-sched.c
......@@ -177,15 +177,6 @@ extern rtx *reg_known_value;
#ifdef INSN_SCHEDULING
/* target_units bitmask has 1 for each unit in the cpu. It should be
possible to compute this variable from the machine description.
But currently it is computed by examining the insn list. Since
this is only needed for visualization, it seems an acceptable
solution. (For understanding the mapping of bits to units, see
definition of function_units[] in "insn-attrtab.c".) */
static int target_units = 0;
/* issue_rate is the number of insns that can be scheduled in the same
machine cycle. It can be defined in the config/mach/mach.h file,
otherwise we set it to 1. */
......@@ -216,7 +207,7 @@ static int nr_inter, nr_spec;
/* Debugging file. All printouts are sent to dump, which is always set,
either to stderr, or to the dump listing file (-dRS). */
static FILE *sched_dump = 0;
FILE *sched_dump = 0;
/* Highest uid before scheduling. */
static int old_max_uid;
......@@ -502,10 +493,8 @@ static void add_dependence PARAMS ((rtx, rtx, enum reg_note));
static void remove_dependence PARAMS ((rtx, rtx));
static rtx find_insn_list PARAMS ((rtx, rtx));
static void set_sched_group_p PARAMS ((rtx));
static int insn_unit PARAMS ((rtx));
static unsigned int blockage_range PARAMS ((int, rtx));
static void clear_units PARAMS ((void));
static int actual_hazard_this_instance PARAMS ((int, int, rtx, int, int));
static void schedule_unit PARAMS ((int, rtx, int));
static int actual_hazard PARAMS ((int, rtx, int, int));
static int potential_hazard PARAMS ((int, rtx, int));
......@@ -525,7 +514,6 @@ static void queue_insn PARAMS ((rtx, int));
static void schedule_insn PARAMS ((rtx, struct ready_list *, int));
static void find_insn_reg_weight PARAMS ((int));
static void schedule_block PARAMS ((int, int));
static char *safe_concat PARAMS ((char *, char *, const char *));
static int insn_issue_delay PARAMS ((rtx));
static void adjust_priority PARAMS ((rtx));
......@@ -802,18 +790,6 @@ static rtx ready_remove_first PARAMS ((struct ready_list *));
static void queue_to_ready PARAMS ((struct ready_list *));
static void debug_ready_list PARAMS ((struct ready_list *));
static void init_target_units PARAMS ((void));
static void insn_print_units PARAMS ((rtx));
static int get_visual_tbl_length PARAMS ((void));
static void init_block_visualization PARAMS ((void));
static void print_block_visualization PARAMS ((int, const char *));
static void visualize_scheduled_insns PARAMS ((int, int));
static void visualize_no_unit PARAMS ((rtx));
static void visualize_stall_cycles PARAMS ((int, int));
static void print_exp PARAMS ((char *, rtx, int));
static void print_value PARAMS ((char *, rtx, int));
static void print_pattern PARAMS ((char *, rtx, int));
static void print_insn PARAMS ((char *, rtx, int));
void debug_reg_vector PARAMS ((regset));
static rtx move_insn1 PARAMS ((rtx, rtx));
......@@ -2914,7 +2890,7 @@ find_insn_mem_list (insn, x, list, list1)
mask if the value is negative. A function unit index is the
non-negative encoding. */
HAIFA_INLINE static int
HAIFA_INLINE int
insn_unit (insn)
rtx insn;
{
......@@ -2986,6 +2962,15 @@ static int unit_tick[FUNCTION_UNITS_SIZE * MAX_MULTIPLICITY];
that remain to use the unit. */
static int unit_n_insns[FUNCTION_UNITS_SIZE];
/* Access the unit_last_insn array. Used by the visualization code. */
rtx
get_unit_last_insn (instance)
int instance;
{
return unit_last_insn[instance];
}
/* Reset the function unit state to the null state. */
static void
......@@ -3028,7 +3013,7 @@ insn_issue_delay (insn)
instance INSTANCE at time CLOCK if the previous actual hazard cost
was COST. */
HAIFA_INLINE static int
HAIFA_INLINE int
actual_hazard_this_instance (unit, instance, insn, clock, cost)
int unit, instance, clock, cost;
rtx insn;
......@@ -4899,7 +4884,7 @@ queue_to_ready (ready)
}
if (sched_verbose && stalls)
visualize_stall_cycles (BB_TO_BLOCK (target_bb), stalls);
visualize_stall_cycles (stalls);
q_ptr = NEXT_Q_AFTER (q_ptr, stalls);
clock_var += stalls;
}
......@@ -4923,873 +4908,6 @@ debug_ready_list (ready)
fprintf (sched_dump, "\n");
}
/* Print names of units on which insn can/should execute, for debugging. */
static void
insn_print_units (insn)
rtx insn;
{
int i;
int unit = insn_unit (insn);
if (unit == -1)
fprintf (sched_dump, "none");
else if (unit >= 0)
fprintf (sched_dump, "%s", function_units[unit].name);
else
{
fprintf (sched_dump, "[");
for (i = 0, unit = ~unit; unit; i++, unit >>= 1)
if (unit & 1)
{
fprintf (sched_dump, "%s", function_units[i].name);
if (unit != 1)
fprintf (sched_dump, " ");
}
fprintf (sched_dump, "]");
}
}
/* MAX_VISUAL_LINES is the maximum number of lines in visualization table
of a basic block. If more lines are needed, table is splitted to two.
n_visual_lines is the number of lines printed so far for a block.
visual_tbl contains the block visualization info.
vis_no_unit holds insns in a cycle that are not mapped to any unit. */
#define MAX_VISUAL_LINES 100
#define INSN_LEN 30
int n_visual_lines;
char *visual_tbl;
int n_vis_no_unit;
rtx vis_no_unit[10];
/* Finds units that are in use in this fuction. Required only
for visualization. */
static void
init_target_units ()
{
rtx insn;
int unit;
for (insn = get_last_insn (); insn; insn = PREV_INSN (insn))
{
if (! INSN_P (insn))
continue;
unit = insn_unit (insn);
if (unit < 0)
target_units |= ~unit;
else
target_units |= (1 << unit);
}
}
/* Return the length of the visualization table. */
static int
get_visual_tbl_length ()
{
int unit, i;
int n, n1;
char *s;
/* Compute length of one field in line. */
s = (char *) alloca (INSN_LEN + 6);
sprintf (s, " %33s", "uname");
n1 = strlen (s);
/* Compute length of one line. */
n = strlen (";; ");
n += n1;
for (unit = 0; unit < FUNCTION_UNITS_SIZE; unit++)
if (function_units[unit].bitmask & target_units)
for (i = 0; i < function_units[unit].multiplicity; i++)
n += n1;
n += n1;
n += strlen ("\n") + 2;
/* Compute length of visualization string. */
return (MAX_VISUAL_LINES * n);
}
/* Init block visualization debugging info. */
static void
init_block_visualization ()
{
strcpy (visual_tbl, "");
n_visual_lines = 0;
n_vis_no_unit = 0;
}
#define BUF_LEN 2048
static char *
safe_concat (buf, cur, str)
char *buf;
char *cur;
const char *str;
{
char *end = buf + BUF_LEN - 2; /* Leave room for null. */
int c;
if (cur > end)
{
*end = '\0';
return end;
}
while (cur < end && (c = *str++) != '\0')
*cur++ = c;
*cur = '\0';
return cur;
}
/* This recognizes rtx, I classified as expressions. These are always
represent some action on values or results of other expression, that
may be stored in objects representing values. */
static void
print_exp (buf, x, verbose)
char *buf;
rtx x;
int verbose;
{
char tmp[BUF_LEN];
const char *st[4];
char *cur = buf;
const char *fun = (char *) 0;
const char *sep;
rtx op[4];
int i;
for (i = 0; i < 4; i++)
{
st[i] = (char *) 0;
op[i] = NULL_RTX;
}
switch (GET_CODE (x))
{
case PLUS:
op[0] = XEXP (x, 0);
if (GET_CODE (XEXP (x, 1)) == CONST_INT
&& INTVAL (XEXP (x, 1)) < 0)
{
st[1] = "-";
op[1] = GEN_INT (-INTVAL (XEXP (x, 1)));
}
else
{
st[1] = "+";
op[1] = XEXP (x, 1);
}
break;
case LO_SUM:
op[0] = XEXP (x, 0);
st[1] = "+low(";
op[1] = XEXP (x, 1);
st[2] = ")";
break;
case MINUS:
op[0] = XEXP (x, 0);
st[1] = "-";
op[1] = XEXP (x, 1);
break;
case COMPARE:
fun = "cmp";
op[0] = XEXP (x, 0);
op[1] = XEXP (x, 1);
break;
case NEG:
st[0] = "-";
op[0] = XEXP (x, 0);
break;
case MULT:
op[0] = XEXP (x, 0);
st[1] = "*";
op[1] = XEXP (x, 1);
break;
case DIV:
op[0] = XEXP (x, 0);
st[1] = "/";
op[1] = XEXP (x, 1);
break;
case UDIV:
fun = "udiv";
op[0] = XEXP (x, 0);
op[1] = XEXP (x, 1);
break;
case MOD:
op[0] = XEXP (x, 0);
st[1] = "%";
op[1] = XEXP (x, 1);
break;
case UMOD:
fun = "umod";
op[0] = XEXP (x, 0);
op[1] = XEXP (x, 1);
break;
case SMIN:
fun = "smin";
op[0] = XEXP (x, 0);
op[1] = XEXP (x, 1);
break;
case SMAX:
fun = "smax";
op[0] = XEXP (x, 0);
op[1] = XEXP (x, 1);
break;
case UMIN:
fun = "umin";
op[0] = XEXP (x, 0);
op[1] = XEXP (x, 1);
break;
case UMAX:
fun = "umax";
op[0] = XEXP (x, 0);
op[1] = XEXP (x, 1);
break;
case NOT:
st[0] = "!";
op[0] = XEXP (x, 0);
break;
case AND:
op[0] = XEXP (x, 0);
st[1] = "&";
op[1] = XEXP (x, 1);
break;
case IOR:
op[0] = XEXP (x, 0);
st[1] = "|";
op[1] = XEXP (x, 1);
break;
case XOR:
op[0] = XEXP (x, 0);
st[1] = "^";
op[1] = XEXP (x, 1);
break;
case ASHIFT:
op[0] = XEXP (x, 0);
st[1] = "<<";
op[1] = XEXP (x, 1);
break;
case LSHIFTRT:
op[0] = XEXP (x, 0);
st[1] = " 0>>";
op[1] = XEXP (x, 1);
break;
case ASHIFTRT:
op[0] = XEXP (x, 0);
st[1] = ">>";
op[1] = XEXP (x, 1);
break;
case ROTATE:
op[0] = XEXP (x, 0);
st[1] = "<-<";
op[1] = XEXP (x, 1);
break;
case ROTATERT:
op[0] = XEXP (x, 0);
st[1] = ">->";
op[1] = XEXP (x, 1);
break;
case ABS:
fun = "abs";
op[0] = XEXP (x, 0);
break;
case SQRT:
fun = "sqrt";
op[0] = XEXP (x, 0);
break;
case FFS:
fun = "ffs";
op[0] = XEXP (x, 0);
break;
case EQ:
op[0] = XEXP (x, 0);
st[1] = "==";
op[1] = XEXP (x, 1);
break;
case NE:
op[0] = XEXP (x, 0);
st[1] = "!=";
op[1] = XEXP (x, 1);
break;
case GT:
op[0] = XEXP (x, 0);
st[1] = ">";
op[1] = XEXP (x, 1);
break;
case GTU:
fun = "gtu";
op[0] = XEXP (x, 0);
op[1] = XEXP (x, 1);
break;
case LT:
op[0] = XEXP (x, 0);
st[1] = "<";
op[1] = XEXP (x, 1);
break;
case LTU:
fun = "ltu";
op[0] = XEXP (x, 0);
op[1] = XEXP (x, 1);
break;
case GE:
op[0] = XEXP (x, 0);
st[1] = ">=";
op[1] = XEXP (x, 1);
break;
case GEU:
fun = "geu";
op[0] = XEXP (x, 0);
op[1] = XEXP (x, 1);
break;
case LE:
op[0] = XEXP (x, 0);
st[1] = "<=";
op[1] = XEXP (x, 1);
break;
case LEU:
fun = "leu";
op[0] = XEXP (x, 0);
op[1] = XEXP (x, 1);
break;
case SIGN_EXTRACT:
fun = (verbose) ? "sign_extract" : "sxt";
op[0] = XEXP (x, 0);
op[1] = XEXP (x, 1);
op[2] = XEXP (x, 2);
break;
case ZERO_EXTRACT:
fun = (verbose) ? "zero_extract" : "zxt";
op[0] = XEXP (x, 0);
op[1] = XEXP (x, 1);
op[2] = XEXP (x, 2);
break;
case SIGN_EXTEND:
fun = (verbose) ? "sign_extend" : "sxn";
op[0] = XEXP (x, 0);
break;
case ZERO_EXTEND:
fun = (verbose) ? "zero_extend" : "zxn";
op[0] = XEXP (x, 0);
break;
case FLOAT_EXTEND:
fun = (verbose) ? "float_extend" : "fxn";
op[0] = XEXP (x, 0);
break;
case TRUNCATE:
fun = (verbose) ? "trunc" : "trn";
op[0] = XEXP (x, 0);
break;
case FLOAT_TRUNCATE:
fun = (verbose) ? "float_trunc" : "ftr";
op[0] = XEXP (x, 0);
break;
case FLOAT:
fun = (verbose) ? "float" : "flt";
op[0] = XEXP (x, 0);
break;
case UNSIGNED_FLOAT:
fun = (verbose) ? "uns_float" : "ufl";
op[0] = XEXP (x, 0);
break;
case FIX:
fun = "fix";
op[0] = XEXP (x, 0);
break;
case UNSIGNED_FIX:
fun = (verbose) ? "uns_fix" : "ufx";
op[0] = XEXP (x, 0);
break;
case PRE_DEC:
st[0] = "--";
op[0] = XEXP (x, 0);
break;
case PRE_INC:
st[0] = "++";
op[0] = XEXP (x, 0);
break;
case POST_DEC:
op[0] = XEXP (x, 0);
st[1] = "--";
break;
case POST_INC:
op[0] = XEXP (x, 0);
st[1] = "++";
break;
case CALL:
st[0] = "call ";
op[0] = XEXP (x, 0);
if (verbose)
{
st[1] = " argc:";
op[1] = XEXP (x, 1);
}
break;
case IF_THEN_ELSE:
st[0] = "{(";
op[0] = XEXP (x, 0);
st[1] = ")?";
op[1] = XEXP (x, 1);
st[2] = ":";
op[2] = XEXP (x, 2);
st[3] = "}";
break;
case TRAP_IF:
fun = "trap_if";
op[0] = TRAP_CONDITION (x);
break;
case UNSPEC:
case UNSPEC_VOLATILE:
{
cur = safe_concat (buf, cur, "unspec");
if (GET_CODE (x) == UNSPEC_VOLATILE)
cur = safe_concat (buf, cur, "/v");
cur = safe_concat (buf, cur, "[");
sep = "";
for (i = 0; i < XVECLEN (x, 0); i++)
{
print_pattern (tmp, XVECEXP (x, 0, i), verbose);
cur = safe_concat (buf, cur, sep);
cur = safe_concat (buf, cur, tmp);
sep = ",";
}
cur = safe_concat (buf, cur, "] ");
sprintf (tmp, "%d", XINT (x, 1));
cur = safe_concat (buf, cur, tmp);
}
break;
default:
/* If (verbose) debug_rtx (x); */
st[0] = GET_RTX_NAME (GET_CODE (x));
break;
}
/* Print this as a function? */
if (fun)
{
cur = safe_concat (buf, cur, fun);
cur = safe_concat (buf, cur, "(");
}
for (i = 0; i < 4; i++)
{
if (st[i])
cur = safe_concat (buf, cur, st[i]);
if (op[i])
{
if (fun && i != 0)
cur = safe_concat (buf, cur, ",");
print_value (tmp, op[i], verbose);
cur = safe_concat (buf, cur, tmp);
}
}
if (fun)
cur = safe_concat (buf, cur, ")");
} /* print_exp */
/* Prints rtxes, I customly classified as values. They're constants,
registers, labels, symbols and memory accesses. */
static void
print_value (buf, x, verbose)
char *buf;
rtx x;
int verbose;
{
char t[BUF_LEN];
char *cur = buf;
switch (GET_CODE (x))
{
case CONST_INT:
sprintf (t, HOST_WIDE_INT_PRINT_HEX, INTVAL (x));
cur = safe_concat (buf, cur, t);
break;
case CONST_DOUBLE:
sprintf (t, "<0x%lx,0x%lx>", (long) XWINT (x, 2), (long) XWINT (x, 3));
cur = safe_concat (buf, cur, t);
break;
case CONST_STRING:
cur = safe_concat (buf, cur, "\"");
cur = safe_concat (buf, cur, XSTR (x, 0));
cur = safe_concat (buf, cur, "\"");
break;
case SYMBOL_REF:
cur = safe_concat (buf, cur, "`");
cur = safe_concat (buf, cur, XSTR (x, 0));
cur = safe_concat (buf, cur, "'");
break;
case LABEL_REF:
sprintf (t, "L%d", INSN_UID (XEXP (x, 0)));
cur = safe_concat (buf, cur, t);
break;
case CONST:
print_value (t, XEXP (x, 0), verbose);
cur = safe_concat (buf, cur, "const(");
cur = safe_concat (buf, cur, t);
cur = safe_concat (buf, cur, ")");
break;
case HIGH:
print_value (t, XEXP (x, 0), verbose);
cur = safe_concat (buf, cur, "high(");
cur = safe_concat (buf, cur, t);
cur = safe_concat (buf, cur, ")");
break;
case REG:
if (REGNO (x) < FIRST_PSEUDO_REGISTER)
{
int c = reg_names[REGNO (x)][0];
if (c >= '0' && c <= '9')
cur = safe_concat (buf, cur, "%");
cur = safe_concat (buf, cur, reg_names[REGNO (x)]);
}
else
{
sprintf (t, "r%d", REGNO (x));
cur = safe_concat (buf, cur, t);
}
break;
case SUBREG:
print_value (t, SUBREG_REG (x), verbose);
cur = safe_concat (buf, cur, t);
sprintf (t, "#%d", SUBREG_WORD (x));
cur = safe_concat (buf, cur, t);
break;
case SCRATCH:
cur = safe_concat (buf, cur, "scratch");
break;
case CC0:
cur = safe_concat (buf, cur, "cc0");
break;
case PC:
cur = safe_concat (buf, cur, "pc");
break;
case MEM:
print_value (t, XEXP (x, 0), verbose);
cur = safe_concat (buf, cur, "[");
cur = safe_concat (buf, cur, t);
cur = safe_concat (buf, cur, "]");
break;
default:
print_exp (t, x, verbose);
cur = safe_concat (buf, cur, t);
break;
}
} /* print_value */
/* The next step in insn detalization, its pattern recognition. */
static void
print_pattern (buf, x, verbose)
char *buf;
rtx x;
int verbose;
{
char t1[BUF_LEN], t2[BUF_LEN], t3[BUF_LEN];
switch (GET_CODE (x))
{
case SET:
print_value (t1, SET_DEST (x), verbose);
print_value (t2, SET_SRC (x), verbose);
sprintf (buf, "%s=%s", t1, t2);
break;
case RETURN:
sprintf (buf, "return");
break;
case CALL:
print_exp (buf, x, verbose);
break;
case CLOBBER:
print_value (t1, XEXP (x, 0), verbose);
sprintf (buf, "clobber %s", t1);
break;
case USE:
print_value (t1, XEXP (x, 0), verbose);
sprintf (buf, "use %s", t1);
break;
case COND_EXEC:
if (GET_CODE (COND_EXEC_TEST (x)) == NE
&& XEXP (COND_EXEC_TEST (x), 1) == const0_rtx)
print_value (t1, XEXP (COND_EXEC_TEST (x), 0), verbose);
else if (GET_CODE (COND_EXEC_TEST (x)) == EQ
&& XEXP (COND_EXEC_TEST (x), 1) == const0_rtx)
{
t1[0] = '!';
print_value (t1 + 1, XEXP (COND_EXEC_TEST (x), 0), verbose);
}
else
print_value (t1, COND_EXEC_TEST (x), verbose);
print_pattern (t2, COND_EXEC_CODE (x), verbose);
sprintf (buf, "(%s) %s", t1, t2);
break;
case PARALLEL:
{
int i;
sprintf (t1, "{");
for (i = 0; i < XVECLEN (x, 0); i++)
{
print_pattern (t2, XVECEXP (x, 0, i), verbose);
sprintf (t3, "%s%s;", t1, t2);
strcpy (t1, t3);
}
sprintf (buf, "%s}", t1);
}
break;
case SEQUENCE:
{
int i;
sprintf (t1, "%%{");
for (i = 0; i < XVECLEN (x, 0); i++)
{
print_insn (t2, XVECEXP (x, 0, i), verbose);
sprintf (t3, "%s%s;", t1, t2);
strcpy (t1, t3);
}
sprintf (buf, "%s%%}", t1);
}
break;
case ASM_INPUT:
sprintf (buf, "asm {%s}", XSTR (x, 0));
break;
case ADDR_VEC:
break;
case ADDR_DIFF_VEC:
print_value (buf, XEXP (x, 0), verbose);
break;
case TRAP_IF:
print_value (t1, TRAP_CONDITION (x), verbose);
sprintf (buf, "trap_if %s", t1);
break;
case UNSPEC:
{
int i;
sprintf (t1, "unspec{");
for (i = 0; i < XVECLEN (x, 0); i++)
{
print_pattern (t2, XVECEXP (x, 0, i), verbose);
sprintf (t3, "%s%s;", t1, t2);
strcpy (t1, t3);
}
sprintf (buf, "%s}", t1);
}
break;
case UNSPEC_VOLATILE:
{
int i;
sprintf (t1, "unspec/v{");
for (i = 0; i < XVECLEN (x, 0); i++)
{
print_pattern (t2, XVECEXP (x, 0, i), verbose);
sprintf (t3, "%s%s;", t1, t2);
strcpy (t1, t3);
}
sprintf (buf, "%s}", t1);
}
break;
default:
print_value (buf, x, verbose);
}
} /* print_pattern */
/* This is the main function in rtl visualization mechanism. It
accepts an rtx and tries to recognize it as an insn, then prints it
properly in human readable form, resembling assembler mnemonics.
For every insn it prints its UID and BB the insn belongs too.
(Probably the last "option" should be extended somehow, since it
depends now on sched.c inner variables ...) */
static void
print_insn (buf, x, verbose)
char *buf;
rtx x;
int verbose;
{
char t[BUF_LEN];
rtx insn = x;
switch (GET_CODE (x))
{
case INSN:
print_pattern (t, PATTERN (x), verbose);
if (verbose)
sprintf (buf, "%s: %s", (*current_sched_info->print_insn) (x, 1),
t);
else
sprintf (buf, "%-4d %s", INSN_UID (x), t);
break;
case JUMP_INSN:
print_pattern (t, PATTERN (x), verbose);
if (verbose)
sprintf (buf, "%s: jump %s", (*current_sched_info->print_insn) (x, 1),
t);
else
sprintf (buf, "%-4d %s", INSN_UID (x), t);
break;
case CALL_INSN:
x = PATTERN (insn);
if (GET_CODE (x) == PARALLEL)
{
x = XVECEXP (x, 0, 0);
print_pattern (t, x, verbose);
}
else
strcpy (t, "call <...>");
if (verbose)
sprintf (buf, "%s: %s", (*current_sched_info->print_insn) (x, 1), t);
else
sprintf (buf, "%-4d %s", INSN_UID (insn), t);
break;
case CODE_LABEL:
sprintf (buf, "L%d:", INSN_UID (x));
break;
case BARRIER:
sprintf (buf, "i% 4d: barrier", INSN_UID (x));
break;
case NOTE:
if (NOTE_LINE_NUMBER (x) > 0)
sprintf (buf, "%4d note \"%s\" %d", INSN_UID (x),
NOTE_SOURCE_FILE (x), NOTE_LINE_NUMBER (x));
else
sprintf (buf, "%4d %s", INSN_UID (x),
GET_NOTE_INSN_NAME (NOTE_LINE_NUMBER (x)));
break;
default:
if (verbose)
{
sprintf (buf, "Not an INSN at all\n");
debug_rtx (x);
}
else
sprintf (buf, "i%-4d <What?>", INSN_UID (x));
}
} /* print_insn */
/* Print visualization debugging info. */
static void
print_block_visualization (b, s)
int b;
const char *s;
{
int unit, i;
/* Print header. */
fprintf (sched_dump, "\n;; ==================== scheduling visualization for block %d %s \n", b, s);
/* Print names of units. */
fprintf (sched_dump, ";; %-8s", "clock");
for (unit = 0; unit < FUNCTION_UNITS_SIZE; unit++)
if (function_units[unit].bitmask & target_units)
for (i = 0; i < function_units[unit].multiplicity; i++)
fprintf (sched_dump, " %-33s", function_units[unit].name);
fprintf (sched_dump, " %-8s\n", "no-unit");
fprintf (sched_dump, ";; %-8s", "=====");
for (unit = 0; unit < FUNCTION_UNITS_SIZE; unit++)
if (function_units[unit].bitmask & target_units)
for (i = 0; i < function_units[unit].multiplicity; i++)
fprintf (sched_dump, " %-33s", "==============================");
fprintf (sched_dump, " %-8s\n", "=======");
/* Print insns in each cycle. */
fprintf (sched_dump, "%s\n", visual_tbl);
}
/* Print insns in the 'no_unit' column of visualization. */
static void
visualize_no_unit (insn)
rtx insn;
{
vis_no_unit[n_vis_no_unit] = insn;
n_vis_no_unit++;
}
/* Print insns scheduled in clock, for visualization. */
static void
visualize_scheduled_insns (b, clock)
int b, clock;
{
int i, unit;
/* If no more room, split table into two. */
if (n_visual_lines >= MAX_VISUAL_LINES)
{
print_block_visualization (b, "(incomplete)");
init_block_visualization ();
}
n_visual_lines++;
sprintf (visual_tbl + strlen (visual_tbl), ";; %-8d", clock);
for (unit = 0; unit < FUNCTION_UNITS_SIZE; unit++)
if (function_units[unit].bitmask & target_units)
for (i = 0; i < function_units[unit].multiplicity; i++)
{
int instance = unit + i * FUNCTION_UNITS_SIZE;
rtx insn = unit_last_insn[instance];
/* Print insns that still keep the unit busy. */
if (insn &&
actual_hazard_this_instance (unit, instance, insn, clock, 0))
{
char str[BUF_LEN];
print_insn (str, insn, 0);
str[INSN_LEN] = '\0';
sprintf (visual_tbl + strlen (visual_tbl), " %-33s", str);
}
else
sprintf (visual_tbl + strlen (visual_tbl), " %-33s", "------------------------------");
}
/* Print insns that are not assigned to any unit. */
for (i = 0; i < n_vis_no_unit; i++)
sprintf (visual_tbl + strlen (visual_tbl), " %-8d",
INSN_UID (vis_no_unit[i]));
n_vis_no_unit = 0;
sprintf (visual_tbl + strlen (visual_tbl), "\n");
}
/* Print stalled cycles. */
static void
visualize_stall_cycles (b, stalls)
int b, stalls;
{
int i;
/* If no more room, split table into two. */
if (n_visual_lines >= MAX_VISUAL_LINES)
{
print_block_visualization (b, "(incomplete)");
init_block_visualization ();
}
n_visual_lines++;
sprintf (visual_tbl + strlen (visual_tbl), ";; ");
for (i = 0; i < stalls; i++)
sprintf (visual_tbl + strlen (visual_tbl), ".");
sprintf (visual_tbl + strlen (visual_tbl), "\n");
}
/* The number of insns from the current block scheduled so far. */
static int sched_target_n_insns;
/* The number of insns from the current block to be scheduled in total. */
......@@ -6248,7 +5366,7 @@ schedule_block (bb, rgn_n_insns)
fprintf (sched_dump, ";; ======================================================\n");
fprintf (sched_dump, "\n");
visual_tbl = (char *) alloca (get_visual_tbl_length ());
visualize_alloc ();
init_block_visualization ();
}
......@@ -6356,7 +5474,7 @@ schedule_block (bb, rgn_n_insns)
/* Debug info. */
if (sched_verbose)
visualize_scheduled_insns (b, clock_var);
visualize_scheduled_insns (clock_var);
}
/* Debug info. */
......@@ -6364,7 +5482,7 @@ schedule_block (bb, rgn_n_insns)
{
fprintf (sched_dump, ";;\tReady list (final): ");
debug_ready_list (&ready);
print_block_visualization (b, "");
print_block_visualization ("");
}
/* Sanity check -- queue must be empty now. Meaningless if region has
......@@ -6402,14 +5520,13 @@ schedule_block (bb, rgn_n_insns)
clock_var, INSN_UID (head));
fprintf (sched_dump, ";; new tail = %d\n\n",
INSN_UID (tail));
visualize_free ();
}
current_sched_info->head = head;
current_sched_info->tail = tail;
free (ready.vec);
return 1;
}
/* Print the bit-set of registers, S, callable from debugger. */
......
gcc/sched-vis.c 0 → 100644
/* Instruction scheduling pass.
Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998,
1999, 2000 Free Software Foundation, Inc.
Contributed by Michael Tiemann (tiemann@cygnus.com) Enhanced by,
and currently maintained by, Jim Wilson (wilson@cygnus.com)
This file is part of GNU CC.
GNU CC is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.
GNU CC is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with GNU CC; see the file COPYING. If not, write to the Free
the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA. */
#include "config.h"
#include "system.h"
#include "toplev.h"
#include "rtl.h"
#include "tm_p.h"
#include "regs.h"
#include "insn-attr.h"
#include "sched-int.h"
/* target_units bitmask has 1 for each unit in the cpu. It should be
possible to compute this variable from the machine description.
But currently it is computed by examining the insn list. Since
this is only needed for visualization, it seems an acceptable
solution. (For understanding the mapping of bits to units, see
definition of function_units[] in "insn-attrtab.c".) */
static int target_units = 0;
static char *safe_concat PARAMS ((char *, char *, const char *));
static int get_visual_tbl_length PARAMS ((void));
static void print_exp PARAMS ((char *, rtx, int));
static void print_value PARAMS ((char *, rtx, int));
static void print_pattern PARAMS ((char *, rtx, int));
static void print_insn PARAMS ((char *, rtx, int));
/* Print names of units on which insn can/should execute, for debugging. */
void
insn_print_units (insn)
rtx insn;
{
int i;
int unit = insn_unit (insn);
if (unit == -1)
fprintf (sched_dump, "none");
else if (unit >= 0)
fprintf (sched_dump, "%s", function_units[unit].name);
else
{
fprintf (sched_dump, "[");
for (i = 0, unit = ~unit; unit; i++, unit >>= 1)
if (unit & 1)
{
fprintf (sched_dump, "%s", function_units[i].name);
if (unit != 1)
fprintf (sched_dump, " ");
}
fprintf (sched_dump, "]");
}
}
/* MAX_VISUAL_LINES is the maximum number of lines in visualization table
of a basic block. If more lines are needed, table is splitted to two.
n_visual_lines is the number of lines printed so far for a block.
visual_tbl contains the block visualization info.
vis_no_unit holds insns in a cycle that are not mapped to any unit. */
#define MAX_VISUAL_LINES 100
#define INSN_LEN 30
int n_visual_lines;
char *visual_tbl;
int n_vis_no_unit;
rtx vis_no_unit[10];
/* Finds units that are in use in this fuction. Required only
for visualization. */
void
init_target_units ()
{
rtx insn;
int unit;
for (insn = get_last_insn (); insn; insn = PREV_INSN (insn))
{
if (! INSN_P (insn))
continue;
unit = insn_unit (insn);
if (unit < 0)
target_units |= ~unit;
else
target_units |= (1 << unit);
}
}
/* Return the length of the visualization table. */
static int
get_visual_tbl_length ()
{
int unit, i;
int n, n1;
char *s;
/* Compute length of one field in line. */
s = (char *) alloca (INSN_LEN + 6);
sprintf (s, " %33s", "uname");
n1 = strlen (s);
/* Compute length of one line. */
n = strlen (";; ");
n += n1;
for (unit = 0; unit < FUNCTION_UNITS_SIZE; unit++)
if (function_units[unit].bitmask & target_units)
for (i = 0; i < function_units[unit].multiplicity; i++)
n += n1;
n += n1;
n += strlen ("\n") + 2;
/* Compute length of visualization string. */
return (MAX_VISUAL_LINES * n);
}
/* Init block visualization debugging info. */
void
init_block_visualization ()
{
strcpy (visual_tbl, "");
n_visual_lines = 0;
n_vis_no_unit = 0;
}
#define BUF_LEN 2048
static char *
safe_concat (buf, cur, str)
char *buf;
char *cur;
const char *str;
{
char *end = buf + BUF_LEN - 2; /* Leave room for null. */
int c;
if (cur > end)
{
*end = '\0';
return end;
}
while (cur < end && (c = *str++) != '\0')
*cur++ = c;
*cur = '\0';
return cur;
}
/* This recognizes rtx, I classified as expressions. These are always
represent some action on values or results of other expression, that
may be stored in objects representing values. */
static void
print_exp (buf, x, verbose)
char *buf;
rtx x;
int verbose;
{
char tmp[BUF_LEN];
const char *st[4];
char *cur = buf;
const char *fun = (char *) 0;
const char *sep;
rtx op[4];
int i;
for (i = 0; i < 4; i++)
{
st[i] = (char *) 0;
op[i] = NULL_RTX;
}
switch (GET_CODE (x))
{
case PLUS:
op[0] = XEXP (x, 0);
if (GET_CODE (XEXP (x, 1)) == CONST_INT
&& INTVAL (XEXP (x, 1)) < 0)
{
st[1] = "-";
op[1] = GEN_INT (-INTVAL (XEXP (x, 1)));
}
else
{
st[1] = "+";
op[1] = XEXP (x, 1);
}
break;
case LO_SUM:
op[0] = XEXP (x, 0);
st[1] = "+low(";
op[1] = XEXP (x, 1);
st[2] = ")";
break;
case MINUS:
op[0] = XEXP (x, 0);
st[1] = "-";
op[1] = XEXP (x, 1);
break;
case COMPARE:
fun = "cmp";
op[0] = XEXP (x, 0);
op[1] = XEXP (x, 1);
break;
case NEG:
st[0] = "-";
op[0] = XEXP (x, 0);
break;
case MULT:
op[0] = XEXP (x, 0);
st[1] = "*";
op[1] = XEXP (x, 1);
break;
case DIV:
op[0] = XEXP (x, 0);
st[1] = "/";
op[1] = XEXP (x, 1);
break;
case UDIV:
fun = "udiv";
op[0] = XEXP (x, 0);
op[1] = XEXP (x, 1);
break;
case MOD:
op[0] = XEXP (x, 0);
st[1] = "%";
op[1] = XEXP (x, 1);
break;
case UMOD:
fun = "umod";
op[0] = XEXP (x, 0);
op[1] = XEXP (x, 1);
break;
case SMIN:
fun = "smin";
op[0] = XEXP (x, 0);
op[1] = XEXP (x, 1);
break;
case SMAX:
fun = "smax";
op[0] = XEXP (x, 0);
op[1] = XEXP (x, 1);
break;
case UMIN:
fun = "umin";
op[0] = XEXP (x, 0);
op[1] = XEXP (x, 1);
break;
case UMAX:
fun = "umax";
op[0] = XEXP (x, 0);
op[1] = XEXP (x, 1);
break;
case NOT:
st[0] = "!";
op[0] = XEXP (x, 0);
break;
case AND:
op[0] = XEXP (x, 0);
st[1] = "&";
op[1] = XEXP (x, 1);
break;
case IOR:
op[0] = XEXP (x, 0);
st[1] = "|";
op[1] = XEXP (x, 1);
break;
case XOR:
op[0] = XEXP (x, 0);
st[1] = "^";
op[1] = XEXP (x, 1);
break;
case ASHIFT:
op[0] = XEXP (x, 0);
st[1] = "<<";
op[1] = XEXP (x, 1);
break;
case LSHIFTRT:
op[0] = XEXP (x, 0);
st[1] = " 0>>";
op[1] = XEXP (x, 1);
break;
case ASHIFTRT:
op[0] = XEXP (x, 0);
st[1] = ">>";
op[1] = XEXP (x, 1);
break;
case ROTATE:
op[0] = XEXP (x, 0);
st[1] = "<-<";
op[1] = XEXP (x, 1);
break;
case ROTATERT:
op[0] = XEXP (x, 0);
st[1] = ">->";
op[1] = XEXP (x, 1);
break;
case ABS:
fun = "abs";
op[0] = XEXP (x, 0);
break;
case SQRT:
fun = "sqrt";
op[0] = XEXP (x, 0);
break;
case FFS:
fun = "ffs";
op[0] = XEXP (x, 0);
break;
case EQ:
op[0] = XEXP (x, 0);
st[1] = "==";
op[1] = XEXP (x, 1);
break;
case NE:
op[0] = XEXP (x, 0);
st[1] = "!=";
op[1] = XEXP (x, 1);
break;
case GT:
op[0] = XEXP (x, 0);
st[1] = ">";
op[1] = XEXP (x, 1);
break;
case GTU:
fun = "gtu";
op[0] = XEXP (x, 0);
op[1] = XEXP (x, 1);
break;
case LT:
op[0] = XEXP (x, 0);
st[1] = "<";
op[1] = XEXP (x, 1);
break;
case LTU:
fun = "ltu";
op[0] = XEXP (x, 0);
op[1] = XEXP (x, 1);
break;
case GE:
op[0] = XEXP (x, 0);
st[1] = ">=";
op[1] = XEXP (x, 1);
break;
case GEU:
fun = "geu";
op[0] = XEXP (x, 0);
op[1] = XEXP (x, 1);
break;
case LE:
op[0] = XEXP (x, 0);
st[1] = "<=";
op[1] = XEXP (x, 1);
break;
case LEU:
fun = "leu";
op[0] = XEXP (x, 0);
op[1] = XEXP (x, 1);
break;
case SIGN_EXTRACT:
fun = (verbose) ? "sign_extract" : "sxt";
op[0] = XEXP (x, 0);
op[1] = XEXP (x, 1);
op[2] = XEXP (x, 2);
break;
case ZERO_EXTRACT:
fun = (verbose) ? "zero_extract" : "zxt";
op[0] = XEXP (x, 0);
op[1] = XEXP (x, 1);
op[2] = XEXP (x, 2);
break;
case SIGN_EXTEND:
fun = (verbose) ? "sign_extend" : "sxn";
op[0] = XEXP (x, 0);
break;
case ZERO_EXTEND:
fun = (verbose) ? "zero_extend" : "zxn";
op[0] = XEXP (x, 0);
break;
case FLOAT_EXTEND:
fun = (verbose) ? "float_extend" : "fxn";
op[0] = XEXP (x, 0);
break;
case TRUNCATE:
fun = (verbose) ? "trunc" : "trn";
op[0] = XEXP (x, 0);
break;
case FLOAT_TRUNCATE:
fun = (verbose) ? "float_trunc" : "ftr";
op[0] = XEXP (x, 0);
break;
case FLOAT:
fun = (verbose) ? "float" : "flt";
op[0] = XEXP (x, 0);
break;
case UNSIGNED_FLOAT:
fun = (verbose) ? "uns_float" : "ufl";
op[0] = XEXP (x, 0);
break;
case FIX:
fun = "fix";
op[0] = XEXP (x, 0);
break;
case UNSIGNED_FIX:
fun = (verbose) ? "uns_fix" : "ufx";
op[0] = XEXP (x, 0);
break;
case PRE_DEC:
st[0] = "--";
op[0] = XEXP (x, 0);
break;
case PRE_INC:
st[0] = "++";
op[0] = XEXP (x, 0);
break;
case POST_DEC:
op[0] = XEXP (x, 0);
st[1] = "--";
break;
case POST_INC:
op[0] = XEXP (x, 0);
st[1] = "++";
break;
case CALL:
st[0] = "call ";
op[0] = XEXP (x, 0);
if (verbose)
{
st[1] = " argc:";
op[1] = XEXP (x, 1);
}
break;
case IF_THEN_ELSE:
st[0] = "{(";
op[0] = XEXP (x, 0);
st[1] = ")?";
op[1] = XEXP (x, 1);
st[2] = ":";
op[2] = XEXP (x, 2);
st[3] = "}";
break;
case TRAP_IF:
fun = "trap_if";
op[0] = TRAP_CONDITION (x);
break;
case UNSPEC:
case UNSPEC_VOLATILE:
{
cur = safe_concat (buf, cur, "unspec");
if (GET_CODE (x) == UNSPEC_VOLATILE)
cur = safe_concat (buf, cur, "/v");
cur = safe_concat (buf, cur, "[");
sep = "";
for (i = 0; i < XVECLEN (x, 0); i++)
{
print_pattern (tmp, XVECEXP (x, 0, i), verbose);
cur = safe_concat (buf, cur, sep);
cur = safe_concat (buf, cur, tmp);
sep = ",";
}
cur = safe_concat (buf, cur, "] ");
sprintf (tmp, "%d", XINT (x, 1));
cur = safe_concat (buf, cur, tmp);
}
break;
default:
/* If (verbose) debug_rtx (x); */
st[0] = GET_RTX_NAME (GET_CODE (x));
break;
}
/* Print this as a function? */
if (fun)
{
cur = safe_concat (buf, cur, fun);
cur = safe_concat (buf, cur, "(");
}
for (i = 0; i < 4; i++)
{
if (st[i])
cur = safe_concat (buf, cur, st[i]);
if (op[i])
{
if (fun && i != 0)
cur = safe_concat (buf, cur, ",");
print_value (tmp, op[i], verbose);
cur = safe_concat (buf, cur, tmp);
}
}
if (fun)
cur = safe_concat (buf, cur, ")");
} /* print_exp */
/* Prints rtxes, I customly classified as values. They're constants,
registers, labels, symbols and memory accesses. */
static void
print_value (buf, x, verbose)
char *buf;
rtx x;
int verbose;
{
char t[BUF_LEN];
char *cur = buf;
switch (GET_CODE (x))
{
case CONST_INT:
sprintf (t, HOST_WIDE_INT_PRINT_HEX, INTVAL (x));
cur = safe_concat (buf, cur, t);
break;
case CONST_DOUBLE:
sprintf (t, "<0x%lx,0x%lx>", (long) XWINT (x, 2), (long) XWINT (x, 3));
cur = safe_concat (buf, cur, t);
break;
case CONST_STRING:
cur = safe_concat (buf, cur, "\"");
cur = safe_concat (buf, cur, XSTR (x, 0));
cur = safe_concat (buf, cur, "\"");
break;
case SYMBOL_REF:
cur = safe_concat (buf, cur, "`");
cur = safe_concat (buf, cur, XSTR (x, 0));
cur = safe_concat (buf, cur, "'");
break;
case LABEL_REF:
sprintf (t, "L%d", INSN_UID (XEXP (x, 0)));
cur = safe_concat (buf, cur, t);
break;
case CONST:
print_value (t, XEXP (x, 0), verbose);
cur = safe_concat (buf, cur, "const(");
cur = safe_concat (buf, cur, t);
cur = safe_concat (buf, cur, ")");
break;
case HIGH:
print_value (t, XEXP (x, 0), verbose);
cur = safe_concat (buf, cur, "high(");
cur = safe_concat (buf, cur, t);
cur = safe_concat (buf, cur, ")");
break;
case REG:
if (REGNO (x) < FIRST_PSEUDO_REGISTER)
{
int c = reg_names[REGNO (x)][0];
if (c >= '0' && c <= '9')
cur = safe_concat (buf, cur, "%");
cur = safe_concat (buf, cur, reg_names[REGNO (x)]);
}
else
{
sprintf (t, "r%d", REGNO (x));
cur = safe_concat (buf, cur, t);
}
break;
case SUBREG:
print_value (t, SUBREG_REG (x), verbose);
cur = safe_concat (buf, cur, t);
sprintf (t, "#%d", SUBREG_WORD (x));
cur = safe_concat (buf, cur, t);
break;
case SCRATCH:
cur = safe_concat (buf, cur, "scratch");
break;
case CC0:
cur = safe_concat (buf, cur, "cc0");
break;
case PC:
cur = safe_concat (buf, cur, "pc");
break;
case MEM:
print_value (t, XEXP (x, 0), verbose);
cur = safe_concat (buf, cur, "[");
cur = safe_concat (buf, cur, t);
cur = safe_concat (buf, cur, "]");
break;
default:
print_exp (t, x, verbose);
cur = safe_concat (buf, cur, t);
break;
}
} /* print_value */
/* The next step in insn detalization, its pattern recognition. */
static void
print_pattern (buf, x, verbose)
char *buf;
rtx x;
int verbose;
{
char t1[BUF_LEN], t2[BUF_LEN], t3[BUF_LEN];
switch (GET_CODE (x))
{
case SET:
print_value (t1, SET_DEST (x), verbose);
print_value (t2, SET_SRC (x), verbose);
sprintf (buf, "%s=%s", t1, t2);
break;
case RETURN:
sprintf (buf, "return");
break;
case CALL:
print_exp (buf, x, verbose);
break;
case CLOBBER:
print_value (t1, XEXP (x, 0), verbose);
sprintf (buf, "clobber %s", t1);
break;
case USE:
print_value (t1, XEXP (x, 0), verbose);
sprintf (buf, "use %s", t1);
break;
case COND_EXEC:
if (GET_CODE (COND_EXEC_TEST (x)) == NE
&& XEXP (COND_EXEC_TEST (x), 1) == const0_rtx)
print_value (t1, XEXP (COND_EXEC_TEST (x), 0), verbose);
else if (GET_CODE (COND_EXEC_TEST (x)) == EQ
&& XEXP (COND_EXEC_TEST (x), 1) == const0_rtx)
{
t1[0] = '!';
print_value (t1 + 1, XEXP (COND_EXEC_TEST (x), 0), verbose);
}
else
print_value (t1, COND_EXEC_TEST (x), verbose);
print_pattern (t2, COND_EXEC_CODE (x), verbose);
sprintf (buf, "(%s) %s", t1, t2);
break;
case PARALLEL:
{
int i;
sprintf (t1, "{");
for (i = 0; i < XVECLEN (x, 0); i++)
{
print_pattern (t2, XVECEXP (x, 0, i), verbose);
sprintf (t3, "%s%s;", t1, t2);
strcpy (t1, t3);
}
sprintf (buf, "%s}", t1);
}
break;
case SEQUENCE:
{
int i;
sprintf (t1, "%%{");
for (i = 0; i < XVECLEN (x, 0); i++)
{
print_insn (t2, XVECEXP (x, 0, i), verbose);
sprintf (t3, "%s%s;", t1, t2);
strcpy (t1, t3);
}
sprintf (buf, "%s%%}", t1);
}
break;
case ASM_INPUT:
sprintf (buf, "asm {%s}", XSTR (x, 0));
break;
case ADDR_VEC:
break;
case ADDR_DIFF_VEC:
print_value (buf, XEXP (x, 0), verbose);
break;
case TRAP_IF:
print_value (t1, TRAP_CONDITION (x), verbose);
sprintf (buf, "trap_if %s", t1);
break;
case UNSPEC:
{
int i;
sprintf (t1, "unspec{");
for (i = 0; i < XVECLEN (x, 0); i++)
{
print_pattern (t2, XVECEXP (x, 0, i), verbose);
sprintf (t3, "%s%s;", t1, t2);
strcpy (t1, t3);
}
sprintf (buf, "%s}", t1);
}
break;
case UNSPEC_VOLATILE:
{
int i;
sprintf (t1, "unspec/v{");
for (i = 0; i < XVECLEN (x, 0); i++)
{
print_pattern (t2, XVECEXP (x, 0, i), verbose);
sprintf (t3, "%s%s;", t1, t2);
strcpy (t1, t3);
}
sprintf (buf, "%s}", t1);
}
break;
default:
print_value (buf, x, verbose);
}
} /* print_pattern */
/* This is the main function in rtl visualization mechanism. It
accepts an rtx and tries to recognize it as an insn, then prints it
properly in human readable form, resembling assembler mnemonics.
For every insn it prints its UID and BB the insn belongs too.
(Probably the last "option" should be extended somehow, since it
depends now on sched.c inner variables ...) */
static void
print_insn (buf, x, verbose)
char *buf;
rtx x;
int verbose;
{
char t[BUF_LEN];
rtx insn = x;
switch (GET_CODE (x))
{
case INSN:
print_pattern (t, PATTERN (x), verbose);
if (verbose)
sprintf (buf, "%s: %s", (*current_sched_info->print_insn) (x, 1),
t);
else
sprintf (buf, "%-4d %s", INSN_UID (x), t);
break;
case JUMP_INSN:
print_pattern (t, PATTERN (x), verbose);
if (verbose)
sprintf (buf, "%s: jump %s", (*current_sched_info->print_insn) (x, 1),
t);
else
sprintf (buf, "%-4d %s", INSN_UID (x), t);
break;
case CALL_INSN:
x = PATTERN (insn);
if (GET_CODE (x) == PARALLEL)
{
x = XVECEXP (x, 0, 0);
print_pattern (t, x, verbose);
}
else
strcpy (t, "call <...>");
if (verbose)
sprintf (buf, "%s: %s", (*current_sched_info->print_insn) (x, 1), t);
else
sprintf (buf, "%-4d %s", INSN_UID (insn), t);
break;
case CODE_LABEL:
sprintf (buf, "L%d:", INSN_UID (x));
break;
case BARRIER:
sprintf (buf, "i% 4d: barrier", INSN_UID (x));
break;
case NOTE:
if (NOTE_LINE_NUMBER (x) > 0)
sprintf (buf, "%4d note \"%s\" %d", INSN_UID (x),
NOTE_SOURCE_FILE (x), NOTE_LINE_NUMBER (x));
else
sprintf (buf, "%4d %s", INSN_UID (x),
GET_NOTE_INSN_NAME (NOTE_LINE_NUMBER (x)));
break;
default:
if (verbose)
{
sprintf (buf, "Not an INSN at all\n");
debug_rtx (x);
}
else
sprintf (buf, "i%-4d <What?>", INSN_UID (x));
}
} /* print_insn */
/* Print visualization debugging info. */
void
print_block_visualization (s)
const char *s;
{
int unit, i;
/* Print header. */
fprintf (sched_dump, "\n;; ==================== scheduling visualization %s \n", s);
/* Print names of units. */
fprintf (sched_dump, ";; %-8s", "clock");
for (unit = 0; unit < FUNCTION_UNITS_SIZE; unit++)
if (function_units[unit].bitmask & target_units)
for (i = 0; i < function_units[unit].multiplicity; i++)
fprintf (sched_dump, " %-33s", function_units[unit].name);
fprintf (sched_dump, " %-8s\n", "no-unit");
fprintf (sched_dump, ";; %-8s", "=====");
for (unit = 0; unit < FUNCTION_UNITS_SIZE; unit++)
if (function_units[unit].bitmask & target_units)
for (i = 0; i < function_units[unit].multiplicity; i++)
fprintf (sched_dump, " %-33s", "==============================");
fprintf (sched_dump, " %-8s\n", "=======");
/* Print insns in each cycle. */
fprintf (sched_dump, "%s\n", visual_tbl);
}
/* Print insns in the 'no_unit' column of visualization. */
void
visualize_no_unit (insn)
rtx insn;
{
vis_no_unit[n_vis_no_unit] = insn;
n_vis_no_unit++;
}
/* Print insns scheduled in clock, for visualization. */
void
visualize_scheduled_insns (clock)
int clock;
{
int i, unit;
/* If no more room, split table into two. */
if (n_visual_lines >= MAX_VISUAL_LINES)
{
print_block_visualization ("(incomplete)");
init_block_visualization ();
}
n_visual_lines++;
sprintf (visual_tbl + strlen (visual_tbl), ";; %-8d", clock);
for (unit = 0; unit < FUNCTION_UNITS_SIZE; unit++)
if (function_units[unit].bitmask & target_units)
for (i = 0; i < function_units[unit].multiplicity; i++)
{
int instance = unit + i * FUNCTION_UNITS_SIZE;
rtx insn = get_unit_last_insn (instance);
/* Print insns that still keep the unit busy. */
if (insn
&& actual_hazard_this_instance (unit, instance, insn, clock, 0))
{
char str[BUF_LEN];
print_insn (str, insn, 0);
str[INSN_LEN] = '\0';
sprintf (visual_tbl + strlen (visual_tbl), " %-33s", str);
}
else
sprintf (visual_tbl + strlen (visual_tbl), " %-33s", "------------------------------");
}
/* Print insns that are not assigned to any unit. */
for (i = 0; i < n_vis_no_unit; i++)
sprintf (visual_tbl + strlen (visual_tbl), " %-8d",
INSN_UID (vis_no_unit[i]));
n_vis_no_unit = 0;
sprintf (visual_tbl + strlen (visual_tbl), "\n");
}
/* Print stalled cycles. */
void
visualize_stall_cycles (stalls)
int stalls;
{
int i;
/* If no more room, split table into two. */
if (n_visual_lines >= MAX_VISUAL_LINES)
{
print_block_visualization ("(incomplete)");
init_block_visualization ();
}
n_visual_lines++;
sprintf (visual_tbl + strlen (visual_tbl), ";; ");
for (i = 0; i < stalls; i++)
sprintf (visual_tbl + strlen (visual_tbl), ".");
sprintf (visual_tbl + strlen (visual_tbl), "\n");
}
/* Allocate data used for visualization during scheduling. */
void
visualize_alloc ()
{
visual_tbl = xmalloc (get_visual_tbl_length ());
}
/* Free data used for visualization. */
void
visualize_free ()
{
free (visual_tbl);
}
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