#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 main(int argc, char *argv[]) {
  char a[3] = {'a', 'b', 'c'};
  int i;
  for (i = 0; i < 3; i++) {
    printf("0x%x ", a[i]);
  }
  printf("\n");
  a[0] = a[0] >> 5;
  for (i = 0; i < 3; i++) {
    printf("0x%x ", a[i]);
  }
  printf("\n");
}


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    0xed3(%rip),%ax
mov    %ax,-0x13(%rbp)
mov    0xecb(%rip),%al
mov    %al,-0x11(%rbp)
movl   $0x0,-0x18(%rbp)
cmpl   $0x3,-0x18(%rbp)
jge    1170 <main+0x60>
movslq -0x18(%rbp),%rax
movsbl -0x13(%rbp,%rax,1),%esi
lea    0xea8(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x18(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x18(%rbp)
jmp    1141 <main+0x31>
lea    0xe92(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movsbl -0x13(%rbp),%eax
sar    $0x5,%eax
mov    %al,-0x13(%rbp)
movl   $0x0,-0x18(%rbp)
cmpl   $0x3,-0x18(%rbp)
jge    11be <main+0xae>
movslq -0x18(%rbp),%rax
movsbl -0x13(%rbp,%rax,1),%esi
lea    0xe5a(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x18(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x18(%rbp)
jmp    118f <main+0x7f>
lea    0xe44(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x4(%rbp),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
lea    0xed8(%rip),%rbx
mov    %rbx,%rdi
mov    $0x61,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    $0x62,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    $0x63,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    $0xa,%edi
call   1030 <putchar@plt>
mov    %rbx,%rdi
mov    $0x3,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    $0x62,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    $0x63,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    $0xa,%edi
call   1030 <putchar@plt>
xor    %eax,%eax
pop    %rbx
ret

LLVM IR (-O0):
@__const.main.a = [3 x i8] c"abc"
@.str = [6 x i8] c"0x%x \00"
@.str.1 = [2 x i8] c"\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca [3 x i8]
%7 = alloca i32
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%8 = bitcast [3 x i8]* %6 to i8*
store i32 0, i32* %7
br label %9
9: ; preds = %19, %2
%10 = load i32, i32* %7
%11 = icmp slt i32 %10, 3
br i1 %11, label %12, label %22
12: ; preds = %9
%13 = load i32, i32* %7
%14 = sext i32 %13 to i64
%15 = getelementptr inbounds [3 x i8], [3 x i8]* %6, i64 0, i64 %14
%16 = load i8, i8* %15
%17 = sext i8 %16 to i32
%18 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), i32 %17)
br label %19
19: ; preds = %12
%20 = load i32, i32* %7
%21 = add nsw i32 %20, 1
store i32 %21, i32* %7
br label %9
22: ; preds = %9
%23 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0))
%24 = getelementptr inbounds [3 x i8], [3 x i8]* %6, i64 0, i64 0
%25 = load i8, i8* %24
%26 = sext i8 %25 to i32
%27 = ashr i32 %26, 5
%28 = trunc i32 %27 to i8
%29 = getelementptr inbounds [3 x i8], [3 x i8]* %6, i64 0, i64 0
store i8 %28, i8* %29
store i32 0, i32* %7
br label %30
30: ; preds = %40, %22
%31 = load i32, i32* %7
%32 = icmp slt i32 %31, 3
br i1 %32, label %33, label %43
33: ; preds = %30
%34 = load i32, i32* %7
%35 = sext i32 %34 to i64
%36 = getelementptr inbounds [3 x i8], [3 x i8]* %6, i64 0, i64 %35
%37 = load i8, i8* %36
%38 = sext i8 %37 to i32
%39 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), i32 %38)
br label %40
40: ; preds = %33
%41 = load i32, i32* %7
%42 = add nsw i32 %41, 1
store i32 %42, i32* %7
br label %30
43: ; preds = %30
%44 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0))
%45 = load i32, i32* %3
ret i32 %45
}

LLVM IR (-O2):
@.str = [6 x i8] c"0x%x \00"
define i32 @main(i32 %0, i8** nocapture readnone %1) {
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), i32 97)
%4 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), i32 98)
%5 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), i32 99)
%6 = tail call i32 @putchar(i32 10)
%7 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), i32 3)
%8 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), i32 98)
%9 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), i32 99)
%10 = tail call i32 @putchar(i32 10)
ret i32 0
}