#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 *, char *);
int main(int argc, char *argv[], char *envp[]) {
  int p;
  for (p = 0; envp[p] && *envp[p]; p++) {
    printf("%s\n", envp[p]);
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
mov    %rdx,-0x18(%rbp)
movl   $0x0,-0x1c(%rbp)
mov    -0x18(%rbp),%rcx
movslq -0x1c(%rbp),%rdx
xor    %eax,%eax
cmpq   $0x0,(%rcx,%rdx,8)
mov    %al,-0x1d(%rbp)
je     1161 <main+0x51>
mov    -0x18(%rbp),%rax
movslq -0x1c(%rbp),%rcx
mov    (%rax,%rcx,8),%rax
movsbl (%rax),%eax
cmp    $0x0,%eax
setne  %al
mov    %al,-0x1d(%rbp)
mov    -0x1d(%rbp),%al
test   $0x1,%al
jne    1171 <main+0x61>
jmp    1197 <main+0x87>
mov    -0x18(%rbp),%rax
movslq -0x1c(%rbp),%rcx
mov    (%rax,%rcx,8),%rsi
lea    0xe7c(%rip),%rdi
call   1030 <printf@plt>
mov    -0x1c(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x1c(%rbp)
jmp    1131 <main+0x21>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r14
push   %rbx
push   %rax
mov    (%rdx),%rsi
test   %rsi,%rsi
je     1149 <main+0x39>
mov    %rdx,%rbx
add    $0x8,%rbx
lea    0xed6(%rip),%r14
nopw   0x0(%rax,%rax,1)
cmpb   $0x0,(%rsi)
je     1149 <main+0x39>
mov    %r14,%rdi
call   1030 <printf@plt>
mov    (%rbx),%rsi
add    $0x8,%rbx
test   %rsi,%rsi
jne    1130 <main+0x20>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r14
ret

LLVM IR (-O0):
@.str = [4 x i8] c"%s\0A\00"
define i32 @main(i32 %0, i8** %1, i8** %2) {
%4 = alloca i32
%5 = alloca i32
%6 = alloca i8**
%7 = alloca i8**
%8 = alloca i32
store i32 0, i32* %4
store i32 %0, i32* %5
store i8** %1, i8*** %6
store i8** %2, i8*** %7
store i32 0, i32* %8
br label %9
9: ; preds = %34, %3
%10 = load i8**, i8*** %7
%11 = load i32, i32* %8
%12 = sext i32 %11 to i64
%13 = getelementptr inbounds i8*, i8** %10, i64 %12
%14 = load i8*, i8** %13
%15 = icmp ne i8* %14, null
br i1 %15, label %16, label %25
16: ; preds = %9
%17 = load i8**, i8*** %7
%18 = load i32, i32* %8
%19 = sext i32 %18 to i64
%20 = getelementptr inbounds i8*, i8** %17, i64 %19
%21 = load i8*, i8** %20
%22 = load i8, i8* %21
%23 = sext i8 %22 to i32
%24 = icmp ne i32 %23, 0
br label %25
25: ; preds = %16, %9
%26 = phi i1 [ false, %9 ], [ %24, %16 ]
br i1 %26, label %27, label %37
27: ; preds = %25
%28 = load i8**, i8*** %7
%29 = load i32, i32* %8
%30 = sext i32 %29 to i64
%31 = getelementptr inbounds i8*, i8** %28, i64 %30
%32 = load i8*, i8** %31
%33 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i8* %32)
br label %34
34: ; preds = %27
%35 = load i32, i32* %8
%36 = add nsw i32 %35, 1
store i32 %36, i32* %8
br label %9
37: ; preds = %25
ret i32 0
}

LLVM IR (-O2):
@.str = [4 x i8] c"%s\0A\00"
define i32 @main(i32 %0, i8** nocapture readnone %1, i8** nocapture %2) {
%4 = load i8*, i8** %2
%5 = icmp eq i8* %4, null
br i1 %5, label %17, label %6
6: ; preds = %3, %11
%7 = phi i64 [ %13, %11 ], [ 0, %3 ]
%8 = phi i8* [ %15, %11 ], [ %4, %3 ]
%9 = load i8, i8* %8
%10 = icmp eq i8 %9, 0
br i1 %10, label %17, label %11
11: ; preds = %6
%12 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i8* %8)
%13 = add nuw i64 %7, 1
%14 = getelementptr inbounds i8*, i8** %2, i64 %13
%15 = load i8*, i8** %14
%16 = icmp eq i8* %15, null
br i1 %16, label %17, label %6
17: ; preds = %6, %11, %3
ret i32 0
}