#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 *);
void get_value(int val) {
  switch (val) {
  case 1:
    printf("The value is %s\n", "FOO");
    break;
  case 2:
    printf("The value is %s\n", "BAR");
    break;
  case 3:
    printf("The value is %s\n", "BAZ");
    break;
  }
}


x86 assembly (clang, -O0):
<get_value>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %edi,-0x4(%rbp)
mov    -0x4(%rbp),%eax
mov    %eax,-0x8(%rbp)
sub    $0x1,%eax
je     1151 <get_value+0x41>
jmp    112f <get_value+0x1f>
mov    -0x8(%rbp),%eax
sub    $0x2,%eax
je     1169 <get_value+0x59>
jmp    1140 <get_value+0x30>
mov    -0x8(%rbp),%eax
sub    $0x3,%eax
je     1181 <get_value+0x71>
jmp    1194 <get_value+0x84>
lea    0xea8(%rip),%rdi
lea    0xeb2(%rip),%rsi
call   1030 <printf@plt>
jmp    1194 <get_value+0x84>
lea    0xe90(%rip),%rdi
lea    0xe9e(%rip),%rsi
call   1030 <printf@plt>
jmp    1194 <get_value+0x84>
lea    0xe78(%rip),%rdi
lea    0xe8a(%rip),%rsi
call   1030 <printf@plt>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<get_value>:
add    $0xffffffff,%edi
cmp    $0x2,%edi
ja     1135 <get_value+0x25>
movslq %edi,%rax
lea    0xefe(%rip),%rcx
movslq (%rcx,%rax,4),%rsi
add    %rcx,%rsi
lea    0xed0(%rip),%rdi
jmp    1030 <printf@plt>
ret

LLVM IR (-O0):
@.str = [17 x i8] c"The value is %s\0A\00"
@.str.1 = [4 x i8] c"FOO\00"
@.str.2 = [4 x i8] c"BAR\00"
@.str.3 = [4 x i8] c"BAZ\00"
define void @get_value(i32 %0) {
%2 = alloca i32
store i32 %0, i32* %2
%3 = load i32, i32* %2
switch i32 %3, label %10 [
i32 1, label %4
i32 2, label %6
i32 3, label %8
]
4: ; preds = %1
%5 = call i32 @printf(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str, i64 0, i64 0), i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0))
br label %10
6: ; preds = %1
%7 = call i32 @printf(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str, i64 0, i64 0), i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0))
br label %10
8: ; preds = %1
%9 = call i32 @printf(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str, i64 0, i64 0), i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0))
br label %10
10: ; preds = %1, %8, %6, %4
ret void
}

LLVM IR (-O2):
@.str = [17 x i8] c"The value is %s\0A\00"
@.str.1 = [4 x i8] c"FOO\00"
@.str.2 = [4 x i8] c"BAR\00"
@.str.3 = [4 x i8] c"BAZ\00"
@reltable.get_value = [3 x i32] [i32 trunc (i64 sub (i64 ptrtoint ([4 x i8]* @.str.1 to i64), i64 ptrtoint ([3 x i32]* @reltable.get_value to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([4 x i8]* @.str.2 to i64), i64 ptrtoint ([3 x i32]* @reltable.get_value to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([4 x i8]* @.str.3 to i64), i64 ptrtoint ([3 x i32]* @reltable.get_value to i64)) to i32)]
define void @get_value(i32 %0) {
%2 = add i32 %0, -1
%3 = icmp ult i32 %2, 3
br i1 %3, label %4, label %9
4: ; preds = %1
%5 = sext i32 %2 to i64
%6 = shl i64 %5, 2
%7 = call i8* @llvm.load.relative.i64(i8* bitcast ([3 x i32]* @reltable.get_value to i8*), i64 %6)
%8 = tail call i32 @printf(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str, i64 0, i64 0), i8* %7)
br label %9
9: ; preds = %1, %4
ret void
}