#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 */
struct tcb {
  int dummy;
};

/* Variables and functions */
int /*<<< orphan*/ tprintf(char const *, ...);
scalar_t__ umove(struct tcb *, long, long *);
void printnum(struct tcb *tcp, long addr, const char *fmt) {
  long num;
  if (!addr) {
    tprintf("NULL");
    return;
  }
  if (umove(tcp, addr, &num) < 0) {
    tprintf("%#lx", addr);
    return;
  }
  tprintf("[");
  tprintf(fmt, num);
  tprintf("]");
}


x86 assembly (clang, -O0):
<printnum>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
mov    %rdx,-0x18(%rbp)
cmpq   $0x0,-0x10(%rbp)
jne    1152 <printnum+0x32>
lea    0xeba(%rip),%rdi
mov    $0x0,%al
call   1030 <tprintf@plt>
jmp    11af <printnum+0x8f>
mov    -0x8(%rbp),%rdi
mov    -0x10(%rbp),%rsi
lea    -0x20(%rbp),%rdx
call   1040 <umove@plt>
cmp    $0x0,%rax
jge    1184 <printnum+0x64>
mov    -0x10(%rbp),%rsi
lea    0xe8d(%rip),%rdi
mov    $0x0,%al
call   1030 <tprintf@plt>
jmp    11af <printnum+0x8f>
lea    0xe7f(%rip),%rdi
mov    $0x0,%al
call   1030 <tprintf@plt>
mov    -0x18(%rbp),%rdi
mov    -0x20(%rbp),%rsi
mov    $0x0,%al
call   1030 <tprintf@plt>
lea    0xe64(%rip),%rdi
mov    $0x0,%al
call   1030 <tprintf@plt>
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<printnum>:
test   %rsi,%rsi
je     1168 <printnum+0x48>
push   %r14
push   %rbx
push   %rax
mov    %rdx,%r14
mov    %rsi,%rbx
mov    %rsp,%rdx
call   1040 <umove@plt>
test   %rax,%rax
js     1176 <printnum+0x56>
lea    0xec7(%rip),%rdi
xor    %eax,%eax
call   1030 <tprintf@plt>
mov    (%rsp),%rsi
mov    %r14,%rdi
xor    %eax,%eax
call   1030 <tprintf@plt>
lea    0xead(%rip),%rdi
xor    %eax,%eax
call   1030 <tprintf@plt>
jmp    1187 <printnum+0x67>
lea    0xe91(%rip),%rdi
xor    %eax,%eax
jmp    1030 <tprintf@plt>
lea    0xe88(%rip),%rdi
mov    %rbx,%rsi
xor    %eax,%eax
call   1030 <tprintf@plt>
add    $0x8,%rsp
pop    %rbx
pop    %r14
ret

LLVM IR (-O0):
%struct.tcb = type { i32 }
@.str = [5 x i8] c"NULL\00"
@.str.1 = [5 x i8] c"%#lx\00"
@.str.2 = [2 x i8] c"[\00"
@.str.3 = [2 x i8] c"]\00"
define void @printnum(%struct.tcb* %0, i64 %1, i8* %2) {
%4 = alloca %struct.tcb*
%5 = alloca i64
%6 = alloca i8*
%7 = alloca i64
store %struct.tcb* %0, %struct.tcb** %4
store i64 %1, i64* %5
store i8* %2, i8** %6
%8 = load i64, i64* %5
%9 = icmp ne i64 %8, 0
br i1 %9, label %12, label %10
10: ; preds = %3
%11 = call i32 (i8*, ...) @tprintf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i64 0, i64 0))
br label %26
12: ; preds = %3
%13 = load %struct.tcb*, %struct.tcb** %4
%14 = load i64, i64* %5
%15 = call i64 @umove(%struct.tcb* %13, i64 %14, i64* %7)
%16 = icmp slt i64 %15, 0
br i1 %16, label %17, label %20
17: ; preds = %12
%18 = load i64, i64* %5
%19 = call i32 (i8*, ...) @tprintf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i64 0, i64 0), i64 %18)
br label %26
20: ; preds = %12
%21 = call i32 (i8*, ...) @tprintf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.2, i64 0, i64 0))
%22 = load i8*, i8** %6
%23 = load i64, i64* %7
%24 = call i32 (i8*, ...) @tprintf(i8* %22, i64 %23)
%25 = call i32 (i8*, ...) @tprintf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.3, i64 0, i64 0))
br label %26
26: ; preds = %20, %17, %10
ret void
}

LLVM IR (-O2):
%struct.tcb = type { i32 }
@.str = [5 x i8] c"NULL\00"
@.str.1 = [5 x i8] c"%#lx\00"
@.str.2 = [2 x i8] c"[\00"
@.str.3 = [2 x i8] c"]\00"
define void @printnum(%struct.tcb* %0, i64 %1, i8* %2) {
%4 = alloca i64
%5 = bitcast i64* %4 to i8*
%6 = icmp eq i64 %1, 0
br i1 %6, label %7, label %9
7: ; preds = %3
%8 = tail call i32 (i8*, ...) @tprintf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i64 0, i64 0))
br label %19
9: ; preds = %3
%10 = call i64 @umove(%struct.tcb* %0, i64 %1, i64* %4)
%11 = icmp slt i64 %10, 0
br i1 %11, label %12, label %14
12: ; preds = %9
%13 = call i32 (i8*, ...) @tprintf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i64 0, i64 0), i64 %1)
br label %19
14: ; preds = %9
%15 = call i32 (i8*, ...) @tprintf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.2, i64 0, i64 0))
%16 = load i64, i64* %4
%17 = call i32 (i8*, ...) @tprintf(i8* %2, i64 %16)
%18 = call i32 (i8*, ...) @tprintf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.3, i64 0, i64 0))
br label %19
19: ; preds = %14, %12, %7
ret void
}