#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*/ anumber_field(int, int, char *, char *);
int /*<<< orphan*/ atom_field(int, int, char *, char *);
int /*<<< orphan*/ center_field(int, int, char *, char *);
int /*<<< orphan*/ element_field(int, int, char *, char *);
int /*<<< orphan*/ kind_field(int, int, char *, char *);
int /*<<< orphan*/ molecule_field(int, int, char *, char *);
int /*<<< orphan*/ occupancy_field(int, int, char *, char *);
int /*<<< orphan*/ pdb_field(int, int, char *, char *);
int /*<<< orphan*/ residue_field(int, int, char *, char *);
int /*<<< orphan*/ rnumber_field(int, int, char *, char *);
int /*<<< orphan*/ sequence_field(int, int, char *, char *);
scalar_t__ strcmp(char *, char *);
int /*<<< orphan*/ subunit_field(int, int, char *, char *);
int /*<<< orphan*/ suffix_field(int, int, char *, char *);
int /*<<< orphan*/ tfactor_field(int, int, char *, char *);
int /*<<< orphan*/ type_field(int, int, char *, char *);
void chooser(int from_set, int to_set, char *field, char *operator,
             char * value) {
  if (strcmp(field, "atom") == 0)
    atom_field(from_set, to_set, operator, value);
  else if (strcmp(field, "residue") == 0)
    residue_field(from_set, to_set, operator, value);
  else if (strcmp(field, "sequence") == 0)
    sequence_field(from_set, to_set, operator, value);
  else if (strcmp(field, "suffix") == 0)
    suffix_field(from_set, to_set, operator, value);
  else if (strcmp(field, "subunit") == 0)
    subunit_field(from_set, to_set, operator, value);
  else if (strcmp(field, "pdb") == 0)
    pdb_field(from_set, to_set, operator, value);
  else if (strcmp(field, "kind") == 0)
    kind_field(from_set, to_set, operator, value);
  else if (strcmp(field, "center") == 0)
    center_field(from_set, to_set, operator, value);
  else if (strcmp(field, "occupancy") == 0)
    occupancy_field(from_set, to_set, operator, value);
  else if (strcmp(field, "tfactor") == 0)
    tfactor_field(from_set, to_set, operator, value);
  else if (strcmp(field, "element") == 0)
    element_field(from_set, to_set, operator, value);
  else if (strcmp(field, "anumber") == 0)
    anumber_field(from_set, to_set, operator, value);
  else if (strcmp(field, "rnumber") == 0)
    rnumber_field(from_set, to_set, operator, value);
  else if (strcmp(field, "molecule") == 0)
    molecule_field(from_set, to_set, operator, value);
  else if (strcmp(field, "type") == 0)
    type_field(from_set, to_set, operator, value);
}


x86 assembly (clang, -O0):
<chooser>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %edi,-0x4(%rbp)
mov    %esi,-0x8(%rbp)
mov    %rdx,-0x10(%rbp)
mov    %rcx,-0x18(%rbp)
mov    %r8,-0x20(%rbp)
mov    -0x10(%rbp),%rdi
lea    0xddb(%rip),%rsi
call   1080 <strcmp@plt>
cmp    $0x0,%rax
jne    124c <chooser+0x4c>
mov    -0x4(%rbp),%edi
mov    -0x8(%rbp),%esi
mov    -0x18(%rbp),%rdx
mov    -0x20(%rbp),%rcx
call   1050 <atom_field@plt>
jmp    1549 <chooser+0x349>
mov    -0x10(%rbp),%rdi
lea    0xdae(%rip),%rsi
call   1080 <strcmp@plt>
cmp    $0x0,%rax
jne    127e <chooser+0x7e>
mov    -0x4(%rbp),%edi
mov    -0x8(%rbp),%esi
mov    -0x18(%rbp),%rdx
mov    -0x20(%rbp),%rcx
call   1120 <residue_field@plt>
jmp    1544 <chooser+0x344>
mov    -0x10(%rbp),%rdi
lea    0xd84(%rip),%rsi
call   1080 <strcmp@plt>
cmp    $0x0,%rax
jne    12b0 <chooser+0xb0>
mov    -0x4(%rbp),%edi
mov    -0x8(%rbp),%esi
mov    -0x18(%rbp),%rdx
mov    -0x20(%rbp),%rcx
call   1040 <sequence_field@plt>
jmp    153f <chooser+0x33f>
mov    -0x10(%rbp),%rdi
lea    0xd5b(%rip),%rsi
call   1080 <strcmp@plt>
cmp    $0x0,%rax
jne    12e2 <chooser+0xe2>
mov    -0x4(%rbp),%edi
mov    -0x8(%rbp),%esi
mov    -0x18(%rbp),%rdx
mov    -0x20(%rbp),%rcx
call   1110 <suffix_field@plt>
jmp    153a <chooser+0x33a>
mov    -0x10(%rbp),%rdi
lea    0xd30(%rip),%rsi
call   1080 <strcmp@plt>
cmp    $0x0,%rax
jne    1314 <chooser+0x114>
mov    -0x4(%rbp),%edi
mov    -0x8(%rbp),%esi
mov    -0x18(%rbp),%rdx
mov    -0x20(%rbp),%rcx
call   10d0 <subunit_field@plt>
jmp    1535 <chooser+0x335>
mov    -0x10(%rbp),%rdi
lea    0xd06(%rip),%rsi
call   1080 <strcmp@plt>
cmp    $0x0,%rax
jne    1346 <chooser+0x146>
mov    -0x4(%rbp),%edi
mov    -0x8(%rbp),%esi
mov    -0x18(%rbp),%rdx
mov    -0x20(%rbp),%rcx
call   10e0 <pdb_field@plt>
jmp    1530 <chooser+0x330>
mov    -0x10(%rbp),%rdi
lea    0xcd8(%rip),%rsi
call   1080 <strcmp@plt>
cmp    $0x0,%rax
jne    1378 <chooser+0x178>
mov    -0x4(%rbp),%edi
mov    -0x8(%rbp),%esi
mov    -0x18(%rbp),%rdx
mov    -0x20(%rbp),%rcx
call   10a0 <kind_field@plt>
jmp    152b <chooser+0x32b>
mov    -0x10(%rbp),%rdi
lea    0xcab(%rip),%rsi
call   1080 <strcmp@plt>
cmp    $0x0,%rax
jne    13aa <chooser+0x1aa>
mov    -0x4(%rbp),%edi
mov    -0x8(%rbp),%esi
mov    -0x18(%rbp),%rdx
mov    -0x20(%rbp),%rcx
call   10f0 <center_field@plt>
jmp    1526 <chooser+0x326>
mov    -0x10(%rbp),%rdi
lea    0xc80(%rip),%rsi
call   1080 <strcmp@plt>
cmp    $0x0,%rax
jne    13dc <chooser+0x1dc>
mov    -0x4(%rbp),%edi
mov    -0x8(%rbp),%esi
mov    -0x18(%rbp),%rdx
mov    -0x20(%rbp),%rcx
call   10c0 <occupancy_field@plt>
jmp    1521 <chooser+0x321>
mov    -0x10(%rbp),%rdi
lea    0xc58(%rip),%rsi
call   1080 <strcmp@plt>
cmp    $0x0,%rax
jne    140e <chooser+0x20e>
mov    -0x4(%rbp),%edi
mov    -0x8(%rbp),%esi
mov    -0x18(%rbp),%rdx
mov    -0x20(%rbp),%rcx
call   1090 <tfactor_field@plt>
jmp    151c <chooser+0x31c>
mov    -0x10(%rbp),%rdi
lea    0xc2e(%rip),%rsi
call   1080 <strcmp@plt>
cmp    $0x0,%rax
jne    1440 <chooser+0x240>
mov    -0x4(%rbp),%edi
mov    -0x8(%rbp),%esi
mov    -0x18(%rbp),%rdx
mov    -0x20(%rbp),%rcx
call   10b0 <element_field@plt>
jmp    1517 <chooser+0x317>
mov    -0x10(%rbp),%rdi
lea    0xc04(%rip),%rsi
call   1080 <strcmp@plt>
cmp    $0x0,%rax
jne    1472 <chooser+0x272>
mov    -0x4(%rbp),%edi
mov    -0x8(%rbp),%esi
mov    -0x18(%rbp),%rdx
mov    -0x20(%rbp),%rcx
call   1030 <anumber_field@plt>
jmp    1512 <chooser+0x312>
mov    -0x10(%rbp),%rdi
lea    0xbda(%rip),%rsi
call   1080 <strcmp@plt>
cmp    $0x0,%rax
jne    14a4 <chooser+0x2a4>
mov    -0x4(%rbp),%edi
mov    -0x8(%rbp),%esi
mov    -0x18(%rbp),%rdx
mov    -0x20(%rbp),%rcx
call   1060 <rnumber_field@plt>
jmp    150d <chooser+0x30d>
mov    -0x10(%rbp),%rdi
lea    0xbb0(%rip),%rsi
call   1080 <strcmp@plt>
cmp    $0x0,%rax
jne    14d6 <chooser+0x2d6>
mov    -0x4(%rbp),%edi
mov    -0x8(%rbp),%esi
mov    -0x18(%rbp),%rdx
mov    -0x20(%rbp),%rcx
call   1070 <molecule_field@plt>
jmp    1508 <chooser+0x308>
mov    -0x10(%rbp),%rdi
lea    0xb87(%rip),%rsi
call   1080 <strcmp@plt>
cmp    $0x0,%rax
jne    1503 <chooser+0x303>
mov    -0x4(%rbp),%edi
mov    -0x8(%rbp),%esi
mov    -0x18(%rbp),%rdx
mov    -0x20(%rbp),%rcx
call   1100 <type_field@plt>
jmp    1508 <chooser+0x308>
jmp    150d <chooser+0x30d>
jmp    1512 <chooser+0x312>
jmp    1517 <chooser+0x317>
jmp    151c <chooser+0x31c>
jmp    1521 <chooser+0x321>
jmp    1526 <chooser+0x326>
jmp    152b <chooser+0x32b>
jmp    1530 <chooser+0x330>
jmp    1535 <chooser+0x335>
jmp    153a <chooser+0x33a>
jmp    153f <chooser+0x33f>
jmp    1544 <chooser+0x344>
jmp    1549 <chooser+0x349>
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<chooser>:
push   %rbp
push   %r15
push   %r14
push   %r12
push   %rbx
mov    %r8,%r14
mov    %rcx,%r15
mov    %rdx,%rbp
mov    %esi,%r12d
mov    %edi,%ebx
lea    0xde3(%rip),%rsi
mov    %rdx,%rdi
call   1080 <strcmp@plt>
test   %rax,%rax
je     1387 <chooser+0x187>
lea    0xdd0(%rip),%rsi
mov    %rbp,%rdi
call   1080 <strcmp@plt>
test   %rax,%rax
je     139f <chooser+0x19f>
lea    0xdc0(%rip),%rsi
mov    %rbp,%rdi
call   1080 <strcmp@plt>
test   %rax,%rax
je     13b7 <chooser+0x1b7>
lea    0xdb1(%rip),%rsi
mov    %rbp,%rdi
call   1080 <strcmp@plt>
test   %rax,%rax
je     13cf <chooser+0x1cf>
lea    0xda0(%rip),%rsi
mov    %rbp,%rdi
call   1080 <strcmp@plt>
test   %rax,%rax
je     13e7 <chooser+0x1e7>
lea    0xd90(%rip),%rsi
mov    %rbp,%rdi
call   1080 <strcmp@plt>
test   %rax,%rax
je     13ff <chooser+0x1ff>
lea    0xd7c(%rip),%rsi
mov    %rbp,%rdi
call   1080 <strcmp@plt>
test   %rax,%rax
je     1417 <chooser+0x217>
lea    0xd69(%rip),%rsi
mov    %rbp,%rdi
call   1080 <strcmp@plt>
test   %rax,%rax
je     142f <chooser+0x22f>
lea    0xd58(%rip),%rsi
mov    %rbp,%rdi
call   1080 <strcmp@plt>
test   %rax,%rax
je     1447 <chooser+0x247>
lea    0xd4a(%rip),%rsi
mov    %rbp,%rdi
call   1080 <strcmp@plt>
test   %rax,%rax
je     145f <chooser+0x25f>
lea    0xd3a(%rip),%rsi
mov    %rbp,%rdi
call   1080 <strcmp@plt>
test   %rax,%rax
je     1477 <chooser+0x277>
lea    0xd2a(%rip),%rsi
mov    %rbp,%rdi
call   1080 <strcmp@plt>
test   %rax,%rax
je     148f <chooser+0x28f>
lea    0xd1a(%rip),%rsi
mov    %rbp,%rdi
call   1080 <strcmp@plt>
test   %rax,%rax
je     14a7 <chooser+0x2a7>
lea    0xd0a(%rip),%rsi
mov    %rbp,%rdi
call   1080 <strcmp@plt>
test   %rax,%rax
je     14bf <chooser+0x2bf>
lea    0xcfb(%rip),%rsi
mov    %rbp,%rdi
call   1080 <strcmp@plt>
test   %rax,%rax
je     14d7 <chooser+0x2d7>
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
pop    %rbp
ret
mov    %ebx,%edi
mov    %r12d,%esi
mov    %r15,%rdx
mov    %r14,%rcx
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
pop    %rbp
jmp    1050 <atom_field@plt>
mov    %ebx,%edi
mov    %r12d,%esi
mov    %r15,%rdx
mov    %r14,%rcx
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
pop    %rbp
jmp    1120 <residue_field@plt>
mov    %ebx,%edi
mov    %r12d,%esi
mov    %r15,%rdx
mov    %r14,%rcx
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
pop    %rbp
jmp    1040 <sequence_field@plt>
mov    %ebx,%edi
mov    %r12d,%esi
mov    %r15,%rdx
mov    %r14,%rcx
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
pop    %rbp
jmp    1110 <suffix_field@plt>
mov    %ebx,%edi
mov    %r12d,%esi
mov    %r15,%rdx
mov    %r14,%rcx
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
pop    %rbp
jmp    10d0 <subunit_field@plt>
mov    %ebx,%edi
mov    %r12d,%esi
mov    %r15,%rdx
mov    %r14,%rcx
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
pop    %rbp
jmp    10e0 <pdb_field@plt>
mov    %ebx,%edi
mov    %r12d,%esi
mov    %r15,%rdx
mov    %r14,%rcx
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
pop    %rbp
jmp    10a0 <kind_field@plt>
mov    %ebx,%edi
mov    %r12d,%esi
mov    %r15,%rdx
mov    %r14,%rcx
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
pop    %rbp
jmp    10f0 <center_field@plt>
mov    %ebx,%edi
mov    %r12d,%esi
mov    %r15,%rdx
mov    %r14,%rcx
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
pop    %rbp
jmp    10c0 <occupancy_field@plt>
mov    %ebx,%edi
mov    %r12d,%esi
mov    %r15,%rdx
mov    %r14,%rcx
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
pop    %rbp
jmp    1090 <tfactor_field@plt>
mov    %ebx,%edi
mov    %r12d,%esi
mov    %r15,%rdx
mov    %r14,%rcx
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
pop    %rbp
jmp    10b0 <element_field@plt>
mov    %ebx,%edi
mov    %r12d,%esi
mov    %r15,%rdx
mov    %r14,%rcx
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
pop    %rbp
jmp    1030 <anumber_field@plt>
mov    %ebx,%edi
mov    %r12d,%esi
mov    %r15,%rdx
mov    %r14,%rcx
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
pop    %rbp
jmp    1060 <rnumber_field@plt>
mov    %ebx,%edi
mov    %r12d,%esi
mov    %r15,%rdx
mov    %r14,%rcx
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
pop    %rbp
jmp    1070 <molecule_field@plt>
mov    %ebx,%edi
mov    %r12d,%esi
mov    %r15,%rdx
mov    %r14,%rcx
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
pop    %rbp
jmp    1100 <type_field@plt>

LLVM IR (-O0):
@.str = [5 x i8] c"atom\00"
@.str.1 = [8 x i8] c"residue\00"
@.str.2 = [9 x i8] c"sequence\00"
@.str.3 = [7 x i8] c"suffix\00"
@.str.4 = [8 x i8] c"subunit\00"
@.str.5 = [4 x i8] c"pdb\00"
@.str.6 = [5 x i8] c"kind\00"
@.str.7 = [7 x i8] c"center\00"
@.str.8 = [10 x i8] c"occupancy\00"
@.str.9 = [8 x i8] c"tfactor\00"
@.str.10 = [8 x i8] c"element\00"
@.str.11 = [8 x i8] c"anumber\00"
@.str.12 = [8 x i8] c"rnumber\00"
@.str.13 = [9 x i8] c"molecule\00"
@.str.14 = [5 x i8] c"type\00"
define void @chooser(i32 %0, i32 %1, i8* %2, i8* %3, i8* %4) {
%6 = alloca i32
%7 = alloca i32
%8 = alloca i8*
%9 = alloca i8*
%10 = alloca i8*
store i32 %0, i32* %6
store i32 %1, i32* %7
store i8* %2, i8** %8
store i8* %3, i8** %9
store i8* %4, i8** %10
%11 = load i8*, i8** %8
%12 = call i64 @strcmp(i8* %11, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i64 0, i64 0))
%13 = icmp eq i64 %12, 0
br i1 %13, label %14, label %20
14: ; preds = %5
%15 = load i32, i32* %6
%16 = load i32, i32* %7
%17 = load i8*, i8** %9
%18 = load i8*, i8** %10
%19 = call i32 @atom_field(i32 %15, i32 %16, i8* %17, i8* %18)
br label %174
20: ; preds = %5
%21 = load i8*, i8** %8
%22 = call i64 @strcmp(i8* %21, i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.1, i64 0, i64 0))
%23 = icmp eq i64 %22, 0
br i1 %23, label %24, label %30
24: ; preds = %20
%25 = load i32, i32* %6
%26 = load i32, i32* %7
%27 = load i8*, i8** %9
%28 = load i8*, i8** %10
%29 = call i32 @residue_field(i32 %25, i32 %26, i8* %27, i8* %28)
br label %173
30: ; preds = %20
%31 = load i8*, i8** %8
%32 = call i64 @strcmp(i8* %31, i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.2, i64 0, i64 0))
%33 = icmp eq i64 %32, 0
br i1 %33, label %34, label %40
34: ; preds = %30
%35 = load i32, i32* %6
%36 = load i32, i32* %7
%37 = load i8*, i8** %9
%38 = load i8*, i8** %10
%39 = call i32 @sequence_field(i32 %35, i32 %36, i8* %37, i8* %38)
br label %172
40: ; preds = %30
%41 = load i8*, i8** %8
%42 = call i64 @strcmp(i8* %41, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0))
%43 = icmp eq i64 %42, 0
br i1 %43, label %44, label %50
44: ; preds = %40
%45 = load i32, i32* %6
%46 = load i32, i32* %7
%47 = load i8*, i8** %9
%48 = load i8*, i8** %10
%49 = call i32 @suffix_field(i32 %45, i32 %46, i8* %47, i8* %48)
br label %171
50: ; preds = %40
%51 = load i8*, i8** %8
%52 = call i64 @strcmp(i8* %51, i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.4, i64 0, i64 0))
%53 = icmp eq i64 %52, 0
br i1 %53, label %54, label %60
54: ; preds = %50
%55 = load i32, i32* %6
%56 = load i32, i32* %7
%57 = load i8*, i8** %9
%58 = load i8*, i8** %10
%59 = call i32 @subunit_field(i32 %55, i32 %56, i8* %57, i8* %58)
br label %170
60: ; preds = %50
%61 = load i8*, i8** %8
%62 = call i64 @strcmp(i8* %61, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.5, i64 0, i64 0))
%63 = icmp eq i64 %62, 0
br i1 %63, label %64, label %70
64: ; preds = %60
%65 = load i32, i32* %6
%66 = load i32, i32* %7
%67 = load i8*, i8** %9
%68 = load i8*, i8** %10
%69 = call i32 @pdb_field(i32 %65, i32 %66, i8* %67, i8* %68)
br label %169
70: ; preds = %60
%71 = load i8*, i8** %8
%72 = call i64 @strcmp(i8* %71, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.6, i64 0, i64 0))
%73 = icmp eq i64 %72, 0
br i1 %73, label %74, label %80
74: ; preds = %70
%75 = load i32, i32* %6
%76 = load i32, i32* %7
%77 = load i8*, i8** %9
%78 = load i8*, i8** %10
%79 = call i32 @kind_field(i32 %75, i32 %76, i8* %77, i8* %78)
br label %168
80: ; preds = %70
%81 = load i8*, i8** %8
%82 = call i64 @strcmp(i8* %81, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.7, i64 0, i64 0))
%83 = icmp eq i64 %82, 0
br i1 %83, label %84, label %90
84: ; preds = %80
%85 = load i32, i32* %6
%86 = load i32, i32* %7
%87 = load i8*, i8** %9
%88 = load i8*, i8** %10
%89 = call i32 @center_field(i32 %85, i32 %86, i8* %87, i8* %88)
br label %167
90: ; preds = %80
%91 = load i8*, i8** %8
%92 = call i64 @strcmp(i8* %91, i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.8, i64 0, i64 0))
%93 = icmp eq i64 %92, 0
br i1 %93, label %94, label %100
94: ; preds = %90
%95 = load i32, i32* %6
%96 = load i32, i32* %7
%97 = load i8*, i8** %9
%98 = load i8*, i8** %10
%99 = call i32 @occupancy_field(i32 %95, i32 %96, i8* %97, i8* %98)
br label %166
100: ; preds = %90
%101 = load i8*, i8** %8
%102 = call i64 @strcmp(i8* %101, i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.9, i64 0, i64 0))
%103 = icmp eq i64 %102, 0
br i1 %103, label %104, label %110
104: ; preds = %100
%105 = load i32, i32* %6
%106 = load i32, i32* %7
%107 = load i8*, i8** %9
%108 = load i8*, i8** %10
%109 = call i32 @tfactor_field(i32 %105, i32 %106, i8* %107, i8* %108)
br label %165
110: ; preds = %100
%111 = load i8*, i8** %8
%112 = call i64 @strcmp(i8* %111, i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.10, i64 0, i64 0))
%113 = icmp eq i64 %112, 0
br i1 %113, label %114, label %120
114: ; preds = %110
%115 = load i32, i32* %6
%116 = load i32, i32* %7
%117 = load i8*, i8** %9
%118 = load i8*, i8** %10
%119 = call i32 @element_field(i32 %115, i32 %116, i8* %117, i8* %118)
br label %164
120: ; preds = %110
%121 = load i8*, i8** %8
%122 = call i64 @strcmp(i8* %121, i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.11, i64 0, i64 0))
%123 = icmp eq i64 %122, 0
br i1 %123, label %124, label %130
124: ; preds = %120
%125 = load i32, i32* %6
%126 = load i32, i32* %7
%127 = load i8*, i8** %9
%128 = load i8*, i8** %10
%129 = call i32 @anumber_field(i32 %125, i32 %126, i8* %127, i8* %128)
br label %163
130: ; preds = %120
%131 = load i8*, i8** %8
%132 = call i64 @strcmp(i8* %131, i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.12, i64 0, i64 0))
%133 = icmp eq i64 %132, 0
br i1 %133, label %134, label %140
134: ; preds = %130
%135 = load i32, i32* %6
%136 = load i32, i32* %7
%137 = load i8*, i8** %9
%138 = load i8*, i8** %10
%139 = call i32 @rnumber_field(i32 %135, i32 %136, i8* %137, i8* %138)
br label %162
140: ; preds = %130
%141 = load i8*, i8** %8
%142 = call i64 @strcmp(i8* %141, i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.13, i64 0, i64 0))
%143 = icmp eq i64 %142, 0
br i1 %143, label %144, label %150
144: ; preds = %140
%145 = load i32, i32* %6
%146 = load i32, i32* %7
%147 = load i8*, i8** %9
%148 = load i8*, i8** %10
%149 = call i32 @molecule_field(i32 %145, i32 %146, i8* %147, i8* %148)
br label %161
150: ; preds = %140
%151 = load i8*, i8** %8
%152 = call i64 @strcmp(i8* %151, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.14, i64 0, i64 0))
%153 = icmp eq i64 %152, 0
br i1 %153, label %154, label %160
154: ; preds = %150
%155 = load i32, i32* %6
%156 = load i32, i32* %7
%157 = load i8*, i8** %9
%158 = load i8*, i8** %10
%159 = call i32 @type_field(i32 %155, i32 %156, i8* %157, i8* %158)
br label %160
160: ; preds = %154, %150
br label %161
161: ; preds = %160, %144
br label %162
162: ; preds = %161, %134
br label %163
163: ; preds = %162, %124
br label %164
164: ; preds = %163, %114
br label %165
165: ; preds = %164, %104
br label %166
166: ; preds = %165, %94
br label %167
167: ; preds = %166, %84
br label %168
168: ; preds = %167, %74
br label %169
169: ; preds = %168, %64
br label %170
170: ; preds = %169, %54
br label %171
171: ; preds = %170, %44
br label %172
172: ; preds = %171, %34
br label %173
173: ; preds = %172, %24
br label %174
174: ; preds = %173, %14
ret void
}

LLVM IR (-O2):
@.str = [5 x i8] c"atom\00"
@.str.1 = [8 x i8] c"residue\00"
@.str.2 = [9 x i8] c"sequence\00"
@.str.3 = [7 x i8] c"suffix\00"
@.str.4 = [8 x i8] c"subunit\00"
@.str.5 = [4 x i8] c"pdb\00"
@.str.6 = [5 x i8] c"kind\00"
@.str.7 = [7 x i8] c"center\00"
@.str.8 = [10 x i8] c"occupancy\00"
@.str.9 = [8 x i8] c"tfactor\00"
@.str.10 = [8 x i8] c"element\00"
@.str.11 = [8 x i8] c"anumber\00"
@.str.12 = [8 x i8] c"rnumber\00"
@.str.13 = [9 x i8] c"molecule\00"
@.str.14 = [5 x i8] c"type\00"
define void @chooser(i32 %0, i32 %1, i8* %2, i8* %3, i8* %4) {
%6 = tail call i64 @strcmp(i8* %2, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i64 0, i64 0))
%7 = icmp eq i64 %6, 0
br i1 %7, label %8, label %10
8: ; preds = %5
%9 = tail call i32 @atom_field(i32 %0, i32 %1, i8* %3, i8* %4)
br label %80
10: ; preds = %5
%11 = tail call i64 @strcmp(i8* %2, i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.1, i64 0, i64 0))
%12 = icmp eq i64 %11, 0
br i1 %12, label %13, label %15
13: ; preds = %10
%14 = tail call i32 @residue_field(i32 %0, i32 %1, i8* %3, i8* %4)
br label %80
15: ; preds = %10
%16 = tail call i64 @strcmp(i8* %2, i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.2, i64 0, i64 0))
%17 = icmp eq i64 %16, 0
br i1 %17, label %18, label %20
18: ; preds = %15
%19 = tail call i32 @sequence_field(i32 %0, i32 %1, i8* %3, i8* %4)
br label %80
20: ; preds = %15
%21 = tail call i64 @strcmp(i8* %2, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0))
%22 = icmp eq i64 %21, 0
br i1 %22, label %23, label %25
23: ; preds = %20
%24 = tail call i32 @suffix_field(i32 %0, i32 %1, i8* %3, i8* %4)
br label %80
25: ; preds = %20
%26 = tail call i64 @strcmp(i8* %2, i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.4, i64 0, i64 0))
%27 = icmp eq i64 %26, 0
br i1 %27, label %28, label %30
28: ; preds = %25
%29 = tail call i32 @subunit_field(i32 %0, i32 %1, i8* %3, i8* %4)
br label %80
30: ; preds = %25
%31 = tail call i64 @strcmp(i8* %2, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.5, i64 0, i64 0))
%32 = icmp eq i64 %31, 0
br i1 %32, label %33, label %35
33: ; preds = %30
%34 = tail call i32 @pdb_field(i32 %0, i32 %1, i8* %3, i8* %4)
br label %80
35: ; preds = %30
%36 = tail call i64 @strcmp(i8* %2, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.6, i64 0, i64 0))
%37 = icmp eq i64 %36, 0
br i1 %37, label %38, label %40
38: ; preds = %35
%39 = tail call i32 @kind_field(i32 %0, i32 %1, i8* %3, i8* %4)
br label %80
40: ; preds = %35
%41 = tail call i64 @strcmp(i8* %2, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.7, i64 0, i64 0))
%42 = icmp eq i64 %41, 0
br i1 %42, label %43, label %45
43: ; preds = %40
%44 = tail call i32 @center_field(i32 %0, i32 %1, i8* %3, i8* %4)
br label %80
45: ; preds = %40
%46 = tail call i64 @strcmp(i8* %2, i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.8, i64 0, i64 0))
%47 = icmp eq i64 %46, 0
br i1 %47, label %48, label %50
48: ; preds = %45
%49 = tail call i32 @occupancy_field(i32 %0, i32 %1, i8* %3, i8* %4)
br label %80
50: ; preds = %45
%51 = tail call i64 @strcmp(i8* %2, i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.9, i64 0, i64 0))
%52 = icmp eq i64 %51, 0
br i1 %52, label %53, label %55
53: ; preds = %50
%54 = tail call i32 @tfactor_field(i32 %0, i32 %1, i8* %3, i8* %4)
br label %80
55: ; preds = %50
%56 = tail call i64 @strcmp(i8* %2, i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.10, i64 0, i64 0))
%57 = icmp eq i64 %56, 0
br i1 %57, label %58, label %60
58: ; preds = %55
%59 = tail call i32 @element_field(i32 %0, i32 %1, i8* %3, i8* %4)
br label %80
60: ; preds = %55
%61 = tail call i64 @strcmp(i8* %2, i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.11, i64 0, i64 0))
%62 = icmp eq i64 %61, 0
br i1 %62, label %63, label %65
63: ; preds = %60
%64 = tail call i32 @anumber_field(i32 %0, i32 %1, i8* %3, i8* %4)
br label %80
65: ; preds = %60
%66 = tail call i64 @strcmp(i8* %2, i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.12, i64 0, i64 0))
%67 = icmp eq i64 %66, 0
br i1 %67, label %68, label %70
68: ; preds = %65
%69 = tail call i32 @rnumber_field(i32 %0, i32 %1, i8* %3, i8* %4)
br label %80
70: ; preds = %65
%71 = tail call i64 @strcmp(i8* %2, i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.13, i64 0, i64 0))
%72 = icmp eq i64 %71, 0
br i1 %72, label %73, label %75
73: ; preds = %70
%74 = tail call i32 @molecule_field(i32 %0, i32 %1, i8* %3, i8* %4)
br label %80
75: ; preds = %70
%76 = tail call i64 @strcmp(i8* %2, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.14, i64 0, i64 0))
%77 = icmp eq i64 %76, 0
br i1 %77, label %78, label %80
78: ; preds = %75
%79 = tail call i32 @type_field(i32 %0, i32 %1, i8* %3, i8* %4)
br label %80
80: ; preds = %13, %23, %33, %43, %53, %63, %73, %78, %75, %68, %58, %48, %38, %28, %18, %8
ret void
}