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/* Copyright (C) 2021-2023 Free Software Foundation, Inc.
Contributed by Oracle.
This file is part of GNU Binutils.
This program 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 3, or (at your option)
any later version.
This program 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 this program; if not, write to the Free Software
Foundation, 51 Franklin Street - Fifth Floor, Boston,
MA 02110-1301, USA. */
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include "stopwatch.h"
/* endcases - examine some wierd endcases of programming style
* test cases for inlined code, macros, #included code, ...
*/
void inc_func (int);
void inc_brace (int);
void inc_body (int);
void inc_entry (int);
void inc_middle (int);
void inc_exit (int);
void macro_code (int);
void ext_macro_code (int);
void xinline_code (int);
static void s_inline_code (int);
void ext_inline_code (int);
#ifndef NO_INLINE
void xinline_code () __attribute__ ((always_inline));
void s_inline_code () __attribute__ ((always_inline));
#endif
#include "inc_inline.h"
int n;
int x1M = 1000000;
int x2M = 2000000;
int x8M = 8000000;
/* define a macro that burns CPU time */
#define burncpu(nn) \
x = 0; \
for (j = 0; j < (nn * x8M); j++) { \
x = x + 1; \
}
int
endcases (int n)
{
hrtime_t start = gethrtime ();
hrtime_t vstart = gethrvtime ();
/* Log the event */
wlog ("start of endcases", NULL);
if (n == 0)
n = 4;
long long count = 0;
do
{
/* test inlines */
xinline_code (n);
s_inline_code (n);
ext_inline_code (n);
/* test macros */
macro_code (n);
ext_macro_code (n);
/* test various cases of #include'd code */
inc_func (n);
inc_brace (n);
inc_body (n);
inc_entry (n);
inc_middle (n);
inc_exit (n);
count++;
}
while (start + testtime * 1e9 > gethrtime ());
fprintf (stderr, " Performed %lld while-loop iterations\n", count);
whrvlog (gethrtime () - start, gethrvtime () - vstart, "endcases", NULL);
return 0;
}
/* spend time in a inline locally-defined */
void
xinline_code (int n)
{
int jmax = n * x8M;
volatile long x = 0;
for (int j = 0; j < jmax; j++)
x = x + 1;
if (x < 0.0)
printf ("ERROR: inline_code(): x < 0 (x=%ld)\n", x);
}
/* spend time in a static inline locally-defined */
static void
s_inline_code (int n)
{
int jmax = n * x8M;
volatile long x = 0;
for (int j = 0; j < jmax; j++)
x = x + 1;
if (x < 0.0)
printf ("ERROR: s_inline_code(): x < 0 (x=%ld)\n", x);
}
/* spend time in a macro locally-defined */
void
macro_code (int n)
{
int j;
volatile long x = 0;
burncpu (n);
if (x < 0.0)
printf ("ERROR: macro_code(): x < 0 (x=%ld)\n", x);
}
/* spend time in a macro externally-defined */
#include "inc_macro.h"
void
ext_macro_code (int n)
{
volatile long x = 0;
int j;
extburncpu (n);
if (x < 0.0)
printf ("ERROR: ext_macro_code(): x < 0 (x=%ld)\n", x);
}
#include "inc_func.h"
void
inc_brace (int n)
#include "inc_brace.h"
void
inc_body (int n) {
#include "inc_body.h"
}
void
inc_entry (int n)
#include "inc_entry.h"
{
int jmax = n * x8M;
volatile float x = 0.0;
for (int j = 0; j < jmax; j++)
x = x + 1.0;
if (x < 0.0)
printf ("ERROR: inc_entry(): x < 0 (x=%f)\n", x);
}
}
void
inc_middle (int n)
{
{
int jmax = n * x8M;
volatile float x = 0.0;
for (int j = 0; j < jmax; j++)
x = x + 1.0;
if (x < 0.0)
printf ("ERROR: inc_middle(): loop 1: x < 0 (x=%f)\n", x);
}
#include "inc_body.h"
{
int jmax = n * x8M;
volatile float x = 0.0;
for (int j = 0; j < jmax; j++)
x = x + 1.0;
if (x < 0.0)
printf ("ERROR: inc_middle(): loop 2: x < 0 (x=%f)\n", x);
}
}
void
inc_exit (int n)
{
{
int jmax = n * x8M;
volatile float x = 0.0;
for (int j = 0; j < jmax; j++)
x = x + 1.0;
if (x < 0.0)
printf ("ERROR: inc_exit(): x < 0 (x=%f)\n", x);
}
#include "inc_exit.h"
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