#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 usage(const char *argv0) {
  printf("Usage:\n");
  printf("  %s            start a server and wait for connection\n", argv0);
  printf("  %s <host>     connect to server at <host>\n", argv0);
  printf("\n");
  printf("Options:\n");
  printf("  -p, --port=<port>      listen on/connect to port <port> (default "
         "18515)\n");
  printf("  -d, --ib-dev=<dev>     use IB device <dev> (default first device "
         "found)\n");
  printf("  -i, --ib-port=<port>   use port <port> of IB device (default 1)\n");
  printf(
      "  -s, --size=<size>      size of message to exchange (default 4096)\n");
  printf("  -m, --mtu=<size>       path MTU (default 1024)\n");
  printf("  -r, --rx-depth=<dep>   number of receives to post at a time "
         "(default 500)\n");
  printf("  -n, --iters=<iters>    number of exchanges (default 1000)\n");
  printf("  -l, --sl=<sl>          service level value\n");
  printf("  -e, --events           sleep on CQ events (default poll)\n");
}


x86 assembly (clang, -O0):
<usage>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
lea    0xedd(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%rsi
lea    0xed3(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%rsi
lea    0xef9(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0x10fa(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf0a(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf06(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf43(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf80(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xfb5(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xfec(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0x1010(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0x104f(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0x107e(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0x109e(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<usage>:
push   %rbx
mov    %rdi,%rbx
lea    0xf2a(%rip),%rdi
call   1040 <puts@plt>
lea    0xeb9(%rip),%rdi
mov    %rbx,%rsi
xor    %eax,%eax
call   1050 <printf@plt>
lea    0xee0(%rip),%rdi
mov    %rbx,%rsi
xor    %eax,%eax
call   1050 <printf@plt>
mov    $0xa,%edi
call   1030 <putchar@plt>
lea    0xef9(%rip),%rdi
call   1040 <puts@plt>
lea    0xef6(%rip),%rdi
call   1040 <puts@plt>
lea    0xf34(%rip),%rdi
call   1040 <puts@plt>
lea    0xf72(%rip),%rdi
call   1040 <puts@plt>
lea    0xfa8(%rip),%rdi
call   1040 <puts@plt>
lea    0xfe0(%rip),%rdi
call   1040 <puts@plt>
lea    0x1005(%rip),%rdi
call   1040 <puts@plt>
lea    0x1045(%rip),%rdi
call   1040 <puts@plt>
lea    0x1075(%rip),%rdi
call   1040 <puts@plt>
lea    0x1096(%rip),%rdi
pop    %rbx
jmp    1040 <puts@plt>

LLVM IR (-O0):
@.str = [8 x i8] c"Usage:\0A\00"
@.str.1 = [56 x i8] c" %s start a server and wait for connection\0A\00"
@.str.2 = [45 x i8] c" %s <host> connect to server at <host>\0A\00"
@.str.3 = [2 x i8] c"\0A\00"
@.str.4 = [10 x i8] c"Options:\0A\00"
@.str.5 = [75 x i8] c" -p, --port=<port> listen on/connect to port <port> (default 18515)\0A\00"
@.str.6 = [75 x i8] c" -d, --ib-dev=<dev> use IB device <dev> (default first device found)\0A\00"
@.str.7 = [67 x i8] c" -i, --ib-port=<port> use port <port> of IB device (default 1)\0A\00"
@.str.8 = [69 x i8] c" -s, --size=<size> size of message to exchange (default 4096)\0A\00"
@.str.9 = [50 x i8] c" -m, --mtu=<size> path MTU (default 1024)\0A\00"
@.str.10 = [77 x i8] c" -r, --rx-depth=<dep> number of receives to post at a time (default 500)\0A\00"
@.str.11 = [61 x i8] c" -n, --iters=<iters> number of exchanges (default 1000)\0A\00"
@.str.12 = [46 x i8] c" -l, --sl=<sl> service level value\0A\00"
@.str.13 = [60 x i8] c" -e, --events sleep on CQ events (default poll)\0A\00"
define void @usage(i8* %0) {
%2 = alloca i8*
store i8* %0, i8** %2
%3 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0))
%4 = load i8*, i8** %2
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([56 x i8], [56 x i8]* @.str.1, i64 0, i64 0), i8* %4)
%6 = load i8*, i8** %2
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([45 x i8], [45 x i8]* @.str.2, i64 0, i64 0), i8* %6)
%8 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.3, i64 0, i64 0))
%9 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.4, i64 0, i64 0))
%10 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([75 x i8], [75 x i8]* @.str.5, i64 0, i64 0))
%11 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([75 x i8], [75 x i8]* @.str.6, i64 0, i64 0))
%12 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([67 x i8], [67 x i8]* @.str.7, i64 0, i64 0))
%13 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([69 x i8], [69 x i8]* @.str.8, i64 0, i64 0))
%14 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([50 x i8], [50 x i8]* @.str.9, i64 0, i64 0))
%15 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([77 x i8], [77 x i8]* @.str.10, i64 0, i64 0))
%16 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([61 x i8], [61 x i8]* @.str.11, i64 0, i64 0))
%17 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([46 x i8], [46 x i8]* @.str.12, i64 0, i64 0))
%18 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @.str.13, i64 0, i64 0))
ret void
}

LLVM IR (-O2):
@.str.1 = [56 x i8] c" %s start a server and wait for connection\0A\00"
@.str.2 = [45 x i8] c" %s <host> connect to server at <host>\0A\00"
@str = [7 x i8] c"Usage:\00"
@str.14 = [9 x i8] c"Options:\00"
@str.15 = [74 x i8] c" -p, --port=<port> listen on/connect to port <port> (default 18515)\00"
@str.16 = [74 x i8] c" -d, --ib-dev=<dev> use IB device <dev> (default first device found)\00"
@str.17 = [66 x i8] c" -i, --ib-port=<port> use port <port> of IB device (default 1)\00"
@str.18 = [68 x i8] c" -s, --size=<size> size of message to exchange (default 4096)\00"
@str.19 = [49 x i8] c" -m, --mtu=<size> path MTU (default 1024)\00"
@str.20 = [76 x i8] c" -r, --rx-depth=<dep> number of receives to post at a time (default 500)\00"
@str.21 = [60 x i8] c" -n, --iters=<iters> number of exchanges (default 1000)\00"
@str.22 = [45 x i8] c" -l, --sl=<sl> service level value\00"
@str.23 = [59 x i8] c" -e, --events sleep on CQ events (default poll)\00"
define void @usage(i8* %0) {
%2 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([7 x i8], [7 x i8]* @str, i64 0, i64 0))
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([56 x i8], [56 x i8]* @.str.1, i64 0, i64 0), i8* %0)
%4 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([45 x i8], [45 x i8]* @.str.2, i64 0, i64 0), i8* %0)
%5 = tail call i32 @putchar(i32 10)
%6 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([9 x i8], [9 x i8]* @str.14, i64 0, i64 0))
%7 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([74 x i8], [74 x i8]* @str.15, i64 0, i64 0))
%8 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([74 x i8], [74 x i8]* @str.16, i64 0, i64 0))
%9 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([66 x i8], [66 x i8]* @str.17, i64 0, i64 0))
%10 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([68 x i8], [68 x i8]* @str.18, i64 0, i64 0))
%11 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([49 x i8], [49 x i8]* @str.19, i64 0, i64 0))
%12 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([76 x i8], [76 x i8]* @str.20, i64 0, i64 0))
%13 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([60 x i8], [60 x i8]* @str.21, i64 0, i64 0))
%14 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([45 x i8], [45 x i8]* @str.22, i64 0, i64 0))
%15 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([59 x i8], [59 x i8]* @str.23, i64 0, i64 0))
ret void
}