#define NULL ((void *)0)
typedef unsigned long size_t; // Customize by platform.
typedef long intptr_t;
typedef unsigned long uintptr_t;
typedef long scalar_t__; // Either arithmetic or pointer type.
/* By default, we understand bool (as a convenience). */
typedef int bool;
#define false 0
#define true 1

/* Forward declarations */

/* Type definitions */

/* Variables and functions */
int /*<<< orphan*/ printf(char *);
void findunderscores(void) {
  printf("#ifndef F77_NO_UNDERSCORE\n");
  printf("#define F77_NO_UNDERSCORE\n");
  printf("#endif\n");
  printf("#ifndef F77_NO_CAPS\n");
  printf("#define F77_NO_CAPS\n");
  printf("#endif\n");
}


x86 assembly (clang, -O0):
<findunderscores>:
push   %rbp
mov    %rsp,%rbp
lea    0xee5(%rip),%rdi
call   1030 <printf@plt>
lea    0xef4(%rip),%rdi
call   1030 <printf@plt>
lea    0xf03(%rip),%rdi
call   1030 <printf@plt>
lea    0xeff(%rip),%rdi
call   1030 <printf@plt>
lea    0xf08(%rip),%rdi
call   1030 <printf@plt>
lea    0xedf(%rip),%rdi
call   1030 <printf@plt>
pop    %rbp
ret

x86 assembly (clang, -O2):
<findunderscores>:
push   %rbx
lea    0xee8(%rip),%rdi
call   1030 <puts@plt>
lea    0xef6(%rip),%rdi
call   1030 <puts@plt>
lea    0xf2c(%rip),%rbx
mov    %rbx,%rdi
call   1030 <puts@plt>
lea    0xef5(%rip),%rdi
call   1030 <puts@plt>
lea    0xefd(%rip),%rdi
call   1030 <puts@plt>
mov    %rbx,%rdi
pop    %rbx
jmp    1030 <puts@plt>

LLVM IR (-O0):
@.str = [27 x i8] c"#ifndef F77_NO_UNDERSCORE\0A\00"
@.str.1 = [27 x i8] c"#define F77_NO_UNDERSCORE\0A\00"
@.str.2 = [8 x i8] c"#endif\0A\00"
@.str.3 = [21 x i8] c"#ifndef F77_NO_CAPS\0A\00"
@.str.4 = [21 x i8] c"#define F77_NO_CAPS\0A\00"
define void @findunderscores() {
%1 = call i32 @printf(i8* getelementptr inbounds ([27 x i8], [27 x i8]* @.str, i64 0, i64 0))
%2 = call i32 @printf(i8* getelementptr inbounds ([27 x i8], [27 x i8]* @.str.1, i64 0, i64 0))
%3 = call i32 @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.2, i64 0, i64 0))
%4 = call i32 @printf(i8* getelementptr inbounds ([21 x i8], [21 x i8]* @.str.3, i64 0, i64 0))
%5 = call i32 @printf(i8* getelementptr inbounds ([21 x i8], [21 x i8]* @.str.4, i64 0, i64 0))
%6 = call i32 @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.2, i64 0, i64 0))
ret void
}

LLVM IR (-O2):
@str = [26 x i8] c"#ifndef F77_NO_UNDERSCORE\00"
@str.5 = [26 x i8] c"#define F77_NO_UNDERSCORE\00"
@str.7 = [20 x i8] c"#ifndef F77_NO_CAPS\00"
@str.8 = [20 x i8] c"#define F77_NO_CAPS\00"
@str.9 = [7 x i8] c"#endif\00"
define void @findunderscores() {
%1 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([26 x i8], [26 x i8]* @str, i64 0, i64 0))
%2 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([26 x i8], [26 x i8]* @str.5, i64 0, i64 0))
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([7 x i8], [7 x i8]* @str.9, i64 0, i64 0))
%4 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([20 x i8], [20 x i8]* @str.7, i64 0, i64 0))
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([20 x i8], [20 x i8]* @str.8, i64 0, i64 0))
%6 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([7 x i8], [7 x i8]* @str.9, i64 0, i64 0))
ret void
}