#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 displayArray(const int array[], unsigned length) {
  printf("--Begin--\n");
  for (unsigned i = 0; i < length; i++) {
    printf("array[%d]=%d\n", i, array[i]);
  }
  printf("--End--\n");
}


x86 assembly (clang, -O0):
<displayArray>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
mov    %esi,-0xc(%rbp)
lea    0xeda(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movl   $0x0,-0x10(%rbp)
mov    -0x10(%rbp),%eax
cmp    -0xc(%rbp),%eax
jae    1169 <displayArray+0x59>
mov    -0x10(%rbp),%esi
mov    -0x8(%rbp),%rax
mov    -0x10(%rbp),%ecx
mov    (%rax,%rcx,4),%edx
lea    0xeb7(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x10(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x10(%rbp)
jmp    1134 <displayArray+0x24>
lea    0xea9(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<displayArray>:
push   %r15
push   %r14
push   %r12
push   %rbx
push   %rax
mov    %esi,%ebx
mov    %rdi,%r15
lea    0xeda(%rip),%rdi
call   1030 <puts@plt>
test   %ebx,%ebx
je     1169 <displayArray+0x49>
mov    %ebx,%r12d
lea    0xeb9(%rip),%r14
xor    %ebx,%ebx
nopl   0x0(%rax)
mov    (%r15,%rbx,4),%edx
mov    %r14,%rdi
mov    %ebx,%esi
xor    %eax,%eax
call   1040 <printf@plt>
add    $0x1,%rbx
cmp    %rbx,%r12
jne    1150 <displayArray+0x30>
lea    0xea8(%rip),%rdi
add    $0x8,%rsp
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
jmp    1030 <puts@plt>

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

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