printusage(prog) char *prog;
{
  printf("USAGE: %s\n", prog);
  printf("       -n <network file>\n");
  printf("       [-e <number of epochs>]\n");
  printf("       [-s <random number generator seed>]\n");
  printf("       [-S <number of epochs between saves of network>]\n");
  printf("       [-t <training set list>]\n");
  printf("       [-1 <testing set 1 list>]\n");
  printf("       [-2 <testing set 2 list>]\n");
  printf("       [-T]\n");
}


x86 assembly (clang, -O0):
<printusage>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x10(%rbp)
mov    -0x10(%rbp),%rsi
lea    0xed9(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xed6(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xee2(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xef4(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf12(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf3d(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf50(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf64(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf78(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x4(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<printusage>:
push   %rax
mov    %rdi,%rsi
lea    0xed5(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xed2(%rip),%rdi
call   1030 <puts@plt>
lea    0xedf(%rip),%rdi
call   1030 <puts@plt>
lea    0xef2(%rip),%rdi
call   1030 <puts@plt>
lea    0xf11(%rip),%rdi
call   1030 <puts@plt>
lea    0xf3d(%rip),%rdi
call   1030 <puts@plt>
lea    0xf51(%rip),%rdi
call   1030 <puts@plt>
lea    0xf66(%rip),%rdi
call   1030 <puts@plt>
lea    0xf7b(%rip),%rdi
pop    %rax
jmp    1030 <puts@plt>

LLVM IR (-O0):
@.str = [11 x i8] c"USAGE: %s\0A\00"
@.str.1 = [26 x i8] c" -n <network file>\0A\00"
@.str.2 = [32 x i8] c" [-e <number of epochs>]\0A\00"
@.str.3 = [44 x i8] c" [-s <random number generator seed>]\0A\00"
@.str.4 = [57 x i8] c" [-S <number of epochs between saves of network>]\0A\00"
@.str.5 = [33 x i8] c" [-t <training set list>]\0A\00"
@.str.6 = [34 x i8] c" [-1 <testing set 1 list>]\0A\00"
@.str.7 = [34 x i8] c" [-2 <testing set 2 list>]\0A\00"
@.str.8 = [13 x i8] c" [-T]\0A\00"
define i32 @printusage(i8* %0) {
%2 = alloca i32
%3 = alloca i8*
store i8* %0, i8** %3
%4 = load i8*, i8** %3
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0), i8* %4)
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([26 x i8], [26 x i8]* @.str.1, i64 0, i64 0))
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([32 x i8], [32 x i8]* @.str.2, i64 0, i64 0))
%8 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([44 x i8], [44 x i8]* @.str.3, i64 0, i64 0))
%9 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([57 x i8], [57 x i8]* @.str.4, i64 0, i64 0))
%10 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([33 x i8], [33 x i8]* @.str.5, i64 0, i64 0))
%11 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([34 x i8], [34 x i8]* @.str.6, i64 0, i64 0))
%12 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([34 x i8], [34 x i8]* @.str.7, i64 0, i64 0))
%13 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.8, i64 0, i64 0))
%14 = load i32, i32* %2
ret i32 %14
}

LLVM IR (-O2):
@.str = [11 x i8] c"USAGE: %s\0A\00"
@str = [25 x i8] c" -n <network file>\00"
@str.9 = [31 x i8] c" [-e <number of epochs>]\00"
@str.10 = [43 x i8] c" [-s <random number generator seed>]\00"
@str.11 = [56 x i8] c" [-S <number of epochs between saves of network>]\00"
@str.12 = [32 x i8] c" [-t <training set list>]\00"
@str.13 = [33 x i8] c" [-1 <testing set 1 list>]\00"
@str.14 = [33 x i8] c" [-2 <testing set 2 list>]\00"
@str.15 = [12 x i8] c" [-T]\00"
define i32 @printusage(i8* %0) {
%2 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0), i8* %0)
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([25 x i8], [25 x i8]* @str, i64 0, i64 0))
%4 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([31 x i8], [31 x i8]* @str.9, i64 0, i64 0))
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([43 x i8], [43 x i8]* @str.10, i64 0, i64 0))
%6 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([56 x i8], [56 x i8]* @str.11, i64 0, i64 0))
%7 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([32 x i8], [32 x i8]* @str.12, i64 0, i64 0))
%8 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([33 x i8], [33 x i8]* @str.13, i64 0, i64 0))
%9 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([33 x i8], [33 x i8]* @str.14, i64 0, i64 0))
%10 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([12 x i8], [12 x i8]* @str.15, i64 0, i64 0))
ret i32 undef
}