#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 *, int, ...);
void bufferTest(const void *source, unsigned int sourceLen) {
  int i = 0;
  unsigned char *src = (unsigned char *)source;
  printf("in test method: size of source buffer = %d\n", sourceLen);
  for (i = 0; i < sourceLen; i++) {
    printf("source[%d] = %d\n", i, src[i]);
  }
}


x86 assembly (clang, -O0):
<bufferTest>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x8(%rbp)
mov    %esi,-0xc(%rbp)
movl   $0x0,-0x10(%rbp)
mov    -0x8(%rbp),%rax
mov    %rax,-0x18(%rbp)
mov    -0xc(%rbp),%esi
lea    0xec8(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movl   $0x0,-0x10(%rbp)
mov    -0x10(%rbp),%eax
cmp    -0xc(%rbp),%eax
jae    117d <bufferTest+0x6d>
mov    -0x10(%rbp),%esi
mov    -0x18(%rbp),%rax
movslq -0x10(%rbp),%rcx
movzbl (%rax,%rcx,1),%edx
lea    0xec4(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x10(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x10(%rbp)
jmp    1146 <bufferTest+0x36>
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<bufferTest>:
push   %r15
push   %r14
push   %r12
push   %rbx
push   %rax
mov    %esi,%ebx
mov    %rdi,%r15
lea    0xedc(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
test   %ebx,%ebx
je     115a <bufferTest+0x4a>
mov    %ebx,%r12d
lea    0xef3(%rip),%r14
xor    %ebx,%ebx
nopl   0x0(%rax,%rax,1)
movzbl (%r15,%rbx,1),%edx
mov    %r14,%rdi
mov    %ebx,%esi
xor    %eax,%eax
call   1030 <printf@plt>
add    $0x1,%rbx
cmp    %rbx,%r12
jne    1140 <bufferTest+0x30>
add    $0x8,%rsp
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
@.str = [44 x i8] c"in test method: size of source buffer = %d\0A\00"
@.str.1 = [17 x i8] c"source[%d] = %d\0A\00"
define void @bufferTest(i8* %0, i32 %1) {
%3 = alloca i8*
%4 = alloca i32
%5 = alloca i32
%6 = alloca i8*
store i8* %0, i8** %3
store i32 %1, i32* %4
store i32 0, i32* %5
%7 = load i8*, i8** %3
store i8* %7, i8** %6
%8 = load i32, i32* %4
%9 = call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([44 x i8], [44 x i8]* @.str, i64 0, i64 0), i32 %8)
store i32 0, i32* %5
br label %10
10: ; preds = %23, %2
%11 = load i32, i32* %5
%12 = load i32, i32* %4
%13 = icmp ult i32 %11, %12
br i1 %13, label %14, label %26
14: ; preds = %10
%15 = load i32, i32* %5
%16 = load i8*, i8** %6
%17 = load i32, i32* %5
%18 = sext i32 %17 to i64
%19 = getelementptr inbounds i8, i8* %16, i64 %18
%20 = load i8, i8* %19
%21 = zext i8 %20 to i32
%22 = call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str.1, i64 0, i64 0), i32 %15, i32 %21)
br label %23
23: ; preds = %14
%24 = load i32, i32* %5
%25 = add nsw i32 %24, 1
store i32 %25, i32* %5
br label %10
26: ; preds = %10
ret void
}

LLVM IR (-O2):
@.str = [44 x i8] c"in test method: size of source buffer = %d\0A\00"
@.str.1 = [17 x i8] c"source[%d] = %d\0A\00"
define void @bufferTest(i8* nocapture %0, i32 %1) {
%3 = tail call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([44 x i8], [44 x i8]* @.str, i64 0, i64 0), i32 %1)
%4 = icmp eq i32 %1, 0
br i1 %4, label %16, label %5
5: ; preds = %2
%6 = zext i32 %1 to i64
br label %7
7: ; preds = %5, %7
%8 = phi i64 [ 0, %5 ], [ %14, %7 ]
%9 = getelementptr inbounds i8, i8* %0, i64 %8
%10 = load i8, i8* %9
%11 = zext i8 %10 to i32
%12 = trunc i64 %8 to i32
%13 = tail call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str.1, i64 0, i64 0), i32 %12, i32 %11)
%14 = add nuw nsw i64 %8, 1
%15 = icmp eq i64 %14, %6
br i1 %15, label %16, label %7
16: ; preds = %7, %2
ret void
}