void unanalyse(cc, mm) int cc, mm;
{
  int rr, st, bb, ac, ex, cc1;
  val_abs2conc(&ac, cc);
  rem_abs2conc(cc);
  if (mm == 1) {
    val_ext(&ex, cc);
    if (ex == 1) {
      kill_Abs2Conc(ac);
    } else {
      vld_Abs2Conc(&bb, ac);
      if (bb == 1) {
        bb = 0;
        while (bb == 0) {
          last_a2c(&cc1, ac);
          pop_a2c(ac);
          if (cc1 == cc) {
            bb = 1;
          }
        }
      }
    }
  }
  val_curMRIState(&st, cc);
  mod_anl(st, 0);
  mod_dmu(st, 0);
  mod_trl(st, 0);
  mod_lnk(st, 0);
  clear_pob(st);
  clear_ppf(st);
  clear_ppf_dmu(st);
  def_sees_uses(&bb, cc);
  if (bb) {
    rem_sees_uses(cc);
  }
  def_inc_ipt(&bb, cc);
  if (bb) {
    rem_inc_ipt(cc);
  }
}


x86 assembly (clang, -O0):
<unanalyse>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %edi,-0x4(%rbp)
mov    %esi,-0x8(%rbp)
mov    -0x4(%rbp),%esi
lea    -0x18(%rbp),%rdi
mov    $0x0,%al
call   1110 <val_abs2conc@plt>
mov    -0x4(%rbp),%edi
mov    $0x0,%al
call   1040 <rem_abs2conc@plt>
cmpl   $0x1,-0x8(%rbp)
jne    12ef <unanalyse+0xbf>
mov    -0x4(%rbp),%esi
lea    -0x1c(%rbp),%rdi
mov    $0x0,%al
call   1100 <val_ext@plt>
cmpl   $0x1,-0x1c(%rbp)
jne    1287 <unanalyse+0x57>
mov    -0x18(%rbp),%edi
mov    $0x0,%al
call   1130 <kill_Abs2Conc@plt>
jmp    12ea <unanalyse+0xba>
mov    -0x18(%rbp),%esi
lea    -0x14(%rbp),%rdi
mov    $0x0,%al
call   10b0 <vld_Abs2Conc@plt>
cmpl   $0x1,-0x14(%rbp)
jne    12e5 <unanalyse+0xb5>
movl   $0x0,-0x14(%rbp)
cmpl   $0x0,-0x14(%rbp)
jne    12e0 <unanalyse+0xb0>
mov    -0x18(%rbp),%esi
lea    -0x20(%rbp),%rdi
mov    $0x0,%al
call   10e0 <last_a2c@plt>
mov    -0x18(%rbp),%edi
mov    $0x0,%al
call   1120 <pop_a2c@plt>
mov    -0x20(%rbp),%eax
cmp    -0x4(%rbp),%eax
jne    12db <unanalyse+0xab>
movl   $0x1,-0x14(%rbp)
jmp    12a6 <unanalyse+0x76>
jmp    12e5 <unanalyse+0xb5>
jmp    12ea <unanalyse+0xba>
jmp    12ef <unanalyse+0xbf>
mov    -0x4(%rbp),%esi
lea    -0x10(%rbp),%rdi
mov    $0x0,%al
call   1060 <val_curMRIState@plt>
mov    -0x10(%rbp),%edi
xor    %esi,%esi
mov    $0x0,%al
call   1030 <mod_anl@plt>
mov    -0x10(%rbp),%edi
xor    %esi,%esi
mov    $0x0,%al
call   1050 <mod_dmu@plt>
mov    -0x10(%rbp),%edi
xor    %esi,%esi
mov    $0x0,%al
call   1070 <mod_trl@plt>
mov    -0x10(%rbp),%edi
xor    %esi,%esi
mov    $0x0,%al
call   1150 <mod_lnk@plt>
mov    -0x10(%rbp),%edi
mov    $0x0,%al
call   10f0 <clear_pob@plt>
mov    -0x10(%rbp),%edi
mov    $0x0,%al
call   1080 <clear_ppf@plt>
mov    -0x10(%rbp),%edi
mov    $0x0,%al
call   10d0 <clear_ppf_dmu@plt>
mov    -0x4(%rbp),%esi
lea    -0x14(%rbp),%rdi
mov    $0x0,%al
call   10a0 <def_sees_uses@plt>
cmpl   $0x0,-0x14(%rbp)
je     136d <unanalyse+0x13d>
mov    -0x4(%rbp),%edi
mov    $0x0,%al
call   1140 <rem_sees_uses@plt>
mov    -0x4(%rbp),%esi
lea    -0x14(%rbp),%rdi
mov    $0x0,%al
call   10c0 <def_inc_ipt@plt>
cmpl   $0x0,-0x14(%rbp)
je     138f <unanalyse+0x15f>
mov    -0x4(%rbp),%edi
mov    $0x0,%al
call   1090 <rem_inc_ipt@plt>
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<unanalyse>:
push   %rbp
push   %r14
push   %rbx
sub    $0x20,%rsp
mov    %esi,%ebp
mov    %edi,%ebx
lea    0x14(%rsp),%rdi
mov    %ebx,%esi
xor    %eax,%eax
call   1110 <val_abs2conc@plt>
mov    %ebx,%edi
xor    %eax,%eax
call   1040 <rem_abs2conc@plt>
cmp    $0x1,%ebp
jne    12d0 <unanalyse+0xa0>
lea    0x1c(%rsp),%rdi
mov    %ebx,%esi
xor    %eax,%eax
call   1100 <val_ext@plt>
cmpl   $0x1,0x1c(%rsp)
mov    0x14(%rsp),%esi
jne    127c <unanalyse+0x4c>
mov    %esi,%edi
xor    %eax,%eax
call   1130 <kill_Abs2Conc@plt>
jmp    12d0 <unanalyse+0xa0>
lea    0xc(%rsp),%rdi
xor    %eax,%eax
call   10b0 <vld_Abs2Conc@plt>
cmpl   $0x1,0xc(%rsp)
jne    12d0 <unanalyse+0xa0>
movl   $0x0,0xc(%rsp)
lea    0x18(%rsp),%r14
nopl   0x0(%rax)
mov    0x14(%rsp),%esi
mov    %r14,%rdi
xor    %eax,%eax
call   10e0 <last_a2c@plt>
mov    0x14(%rsp),%edi
xor    %eax,%eax
call   1120 <pop_a2c@plt>
cmp    %ebx,0x18(%rsp)
je     12c8 <unanalyse+0x98>
cmpl   $0x0,0xc(%rsp)
je     12a0 <unanalyse+0x70>
jmp    12d0 <unanalyse+0xa0>
movl   $0x1,0xc(%rsp)
lea    0x10(%rsp),%rdi
mov    %ebx,%esi
xor    %eax,%eax
call   1060 <val_curMRIState@plt>
mov    0x10(%rsp),%edi
xor    %esi,%esi
xor    %eax,%eax
call   1030 <mod_anl@plt>
mov    0x10(%rsp),%edi
xor    %esi,%esi
xor    %eax,%eax
call   1050 <mod_dmu@plt>
mov    0x10(%rsp),%edi
xor    %esi,%esi
xor    %eax,%eax
call   1070 <mod_trl@plt>
mov    0x10(%rsp),%edi
xor    %esi,%esi
xor    %eax,%eax
call   1150 <mod_lnk@plt>
mov    0x10(%rsp),%edi
xor    %eax,%eax
call   10f0 <clear_pob@plt>
mov    0x10(%rsp),%edi
xor    %eax,%eax
call   1080 <clear_ppf@plt>
mov    0x10(%rsp),%edi
xor    %eax,%eax
call   10d0 <clear_ppf_dmu@plt>
lea    0xc(%rsp),%rdi
mov    %ebx,%esi
xor    %eax,%eax
call   10a0 <def_sees_uses@plt>
cmpl   $0x0,0xc(%rsp)
je     1351 <unanalyse+0x121>
mov    %ebx,%edi
xor    %eax,%eax
call   1140 <rem_sees_uses@plt>
lea    0xc(%rsp),%rdi
mov    %ebx,%esi
xor    %eax,%eax
call   10c0 <def_inc_ipt@plt>
cmpl   $0x0,0xc(%rsp)
je     136f <unanalyse+0x13f>
mov    %ebx,%edi
xor    %eax,%eax
call   1090 <rem_inc_ipt@plt>
add    $0x20,%rsp
pop    %rbx
pop    %r14
pop    %rbp
ret

LLVM IR (-O0):
define void @unanalyse(i32 %0, i32 %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i32
%6 = alloca i32
%7 = alloca i32
%8 = alloca i32
%9 = alloca i32
%10 = alloca i32
store i32 %0, i32* %3
store i32 %1, i32* %4
%11 = load i32, i32* %3
%12 = call i32 (i32*, i32, ...) bitcast (i32 (...)* @val_abs2conc to i32 (i32*, i32, ...)*)(i32* %8, i32 %11)
%13 = load i32, i32* %3
%14 = call i32 (i32, ...) bitcast (i32 (...)* @rem_abs2conc to i32 (i32, ...)*)(i32 %13)
%15 = load i32, i32* %4
%16 = icmp eq i32 %15, 1
br i1 %16, label %17, label %47
17: ; preds = %2
%18 = load i32, i32* %3
%19 = call i32 (i32*, i32, ...) bitcast (i32 (...)* @val_ext to i32 (i32*, i32, ...)*)(i32* %9, i32 %18)
%20 = load i32, i32* %9
%21 = icmp eq i32 %20, 1
br i1 %21, label %22, label %25
22: ; preds = %17
%23 = load i32, i32* %8
%24 = call i32 (i32, ...) bitcast (i32 (...)* @kill_Abs2Conc to i32 (i32, ...)*)(i32 %23)
br label %46
25: ; preds = %17
%26 = load i32, i32* %8
%27 = call i32 (i32*, i32, ...) bitcast (i32 (...)* @vld_Abs2Conc to i32 (i32*, i32, ...)*)(i32* %7, i32 %26)
%28 = load i32, i32* %7
%29 = icmp eq i32 %28, 1
br i1 %29, label %30, label %45
30: ; preds = %25
store i32 0, i32* %7
br label %31
31: ; preds = %43, %30
%32 = load i32, i32* %7
%33 = icmp eq i32 %32, 0
br i1 %33, label %34, label %44
34: ; preds = %31
%35 = load i32, i32* %8
%36 = call i32 (i32*, i32, ...) bitcast (i32 (...)* @last_a2c to i32 (i32*, i32, ...)*)(i32* %10, i32 %35)
%37 = load i32, i32* %8
%38 = call i32 (i32, ...) bitcast (i32 (...)* @pop_a2c to i32 (i32, ...)*)(i32 %37)
%39 = load i32, i32* %10
%40 = load i32, i32* %3
%41 = icmp eq i32 %39, %40
br i1 %41, label %42, label %43
42: ; preds = %34
store i32 1, i32* %7
br label %43
43: ; preds = %42, %34
br label %31
44: ; preds = %31
br label %45
45: ; preds = %44, %25
br label %46
46: ; preds = %45, %22
br label %47
47: ; preds = %46, %2
%48 = load i32, i32* %3
%49 = call i32 (i32*, i32, ...) bitcast (i32 (...)* @val_curMRIState to i32 (i32*, i32, ...)*)(i32* %6, i32 %48)
%50 = load i32, i32* %6
%51 = call i32 (i32, i32, ...) bitcast (i32 (...)* @mod_anl to i32 (i32, i32, ...)*)(i32 %50, i32 0)
%52 = load i32, i32* %6
%53 = call i32 (i32, i32, ...) bitcast (i32 (...)* @mod_dmu to i32 (i32, i32, ...)*)(i32 %52, i32 0)
%54 = load i32, i32* %6
%55 = call i32 (i32, i32, ...) bitcast (i32 (...)* @mod_trl to i32 (i32, i32, ...)*)(i32 %54, i32 0)
%56 = load i32, i32* %6
%57 = call i32 (i32, i32, ...) bitcast (i32 (...)* @mod_lnk to i32 (i32, i32, ...)*)(i32 %56, i32 0)
%58 = load i32, i32* %6
%59 = call i32 (i32, ...) bitcast (i32 (...)* @clear_pob to i32 (i32, ...)*)(i32 %58)
%60 = load i32, i32* %6
%61 = call i32 (i32, ...) bitcast (i32 (...)* @clear_ppf to i32 (i32, ...)*)(i32 %60)
%62 = load i32, i32* %6
%63 = call i32 (i32, ...) bitcast (i32 (...)* @clear_ppf_dmu to i32 (i32, ...)*)(i32 %62)
%64 = load i32, i32* %3
%65 = call i32 (i32*, i32, ...) bitcast (i32 (...)* @def_sees_uses to i32 (i32*, i32, ...)*)(i32* %7, i32 %64)
%66 = load i32, i32* %7
%67 = icmp ne i32 %66, 0
br i1 %67, label %68, label %71
68: ; preds = %47
%69 = load i32, i32* %3
%70 = call i32 (i32, ...) bitcast (i32 (...)* @rem_sees_uses to i32 (i32, ...)*)(i32 %69)
br label %71
71: ; preds = %68, %47
%72 = load i32, i32* %3
%73 = call i32 (i32*, i32, ...) bitcast (i32 (...)* @def_inc_ipt to i32 (i32*, i32, ...)*)(i32* %7, i32 %72)
%74 = load i32, i32* %7
%75 = icmp ne i32 %74, 0
br i1 %75, label %76, label %79
76: ; preds = %71
%77 = load i32, i32* %3
%78 = call i32 (i32, ...) bitcast (i32 (...)* @rem_inc_ipt to i32 (i32, ...)*)(i32 %77)
br label %79
79: ; preds = %76, %71
ret void
}

LLVM IR (-O2):
define void @unanalyse(i32 %0, i32 %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i32
%6 = alloca i32
%7 = alloca i32
%8 = bitcast i32* %3 to i8*
%9 = bitcast i32* %4 to i8*
%10 = bitcast i32* %5 to i8*
%11 = bitcast i32* %6 to i8*
%12 = bitcast i32* %7 to i8*
%13 = call i32 (i32*, i32, ...) bitcast (i32 (...)* @val_abs2conc to i32 (i32*, i32, ...)*)(i32* %5, i32 %0)
%14 = call i32 (i32, ...) bitcast (i32 (...)* @rem_abs2conc to i32 (i32, ...)*)(i32 %0)
%15 = icmp eq i32 %1, 1
br i1 %15, label %16, label %39
16: ; preds = %2
%17 = call i32 (i32*, i32, ...) bitcast (i32 (...)* @val_ext to i32 (i32*, i32, ...)*)(i32* %6, i32 %0)
%18 = load i32, i32* %6
%19 = icmp eq i32 %18, 1
%20 = load i32, i32* %5
br i1 %19, label %21, label %23
21: ; preds = %16
%22 = call i32 (i32, ...) bitcast (i32 (...)* @kill_Abs2Conc to i32 (i32, ...)*)(i32 %20)
br label %39
23: ; preds = %16
%24 = call i32 (i32*, i32, ...) bitcast (i32 (...)* @vld_Abs2Conc to i32 (i32*, i32, ...)*)(i32* %4, i32 %20)
%25 = load i32, i32* %4
%26 = icmp eq i32 %25, 1
br i1 %26, label %27, label %39
27: ; preds = %23
store i32 0, i32* %4
br label %28
28: ; preds = %27, %36
%29 = load i32, i32* %5
%30 = call i32 (i32*, i32, ...) bitcast (i32 (...)* @last_a2c to i32 (i32*, i32, ...)*)(i32* %7, i32 %29)
%31 = load i32, i32* %5
%32 = call i32 (i32, ...) bitcast (i32 (...)* @pop_a2c to i32 (i32, ...)*)(i32 %31)
%33 = load i32, i32* %7
%34 = icmp eq i32 %33, %0
br i1 %34, label %35, label %36
35: ; preds = %28
store i32 1, i32* %4
br label %39
36: ; preds = %28
%37 = load i32, i32* %4
%38 = icmp eq i32 %37, 0
br i1 %38, label %28, label %39
39: ; preds = %36, %35, %21, %23, %2
%40 = call i32 (i32*, i32, ...) bitcast (i32 (...)* @val_curMRIState to i32 (i32*, i32, ...)*)(i32* %3, i32 %0)
%41 = load i32, i32* %3
%42 = call i32 (i32, i32, ...) bitcast (i32 (...)* @mod_anl to i32 (i32, i32, ...)*)(i32 %41, i32 0)
%43 = load i32, i32* %3
%44 = call i32 (i32, i32, ...) bitcast (i32 (...)* @mod_dmu to i32 (i32, i32, ...)*)(i32 %43, i32 0)
%45 = load i32, i32* %3
%46 = call i32 (i32, i32, ...) bitcast (i32 (...)* @mod_trl to i32 (i32, i32, ...)*)(i32 %45, i32 0)
%47 = load i32, i32* %3
%48 = call i32 (i32, i32, ...) bitcast (i32 (...)* @mod_lnk to i32 (i32, i32, ...)*)(i32 %47, i32 0)
%49 = load i32, i32* %3
%50 = call i32 (i32, ...) bitcast (i32 (...)* @clear_pob to i32 (i32, ...)*)(i32 %49)
%51 = load i32, i32* %3
%52 = call i32 (i32, ...) bitcast (i32 (...)* @clear_ppf to i32 (i32, ...)*)(i32 %51)
%53 = load i32, i32* %3
%54 = call i32 (i32, ...) bitcast (i32 (...)* @clear_ppf_dmu to i32 (i32, ...)*)(i32 %53)
%55 = call i32 (i32*, i32, ...) bitcast (i32 (...)* @def_sees_uses to i32 (i32*, i32, ...)*)(i32* %4, i32 %0)
%56 = load i32, i32* %4
%57 = icmp eq i32 %56, 0
br i1 %57, label %60, label %58
58: ; preds = %39
%59 = call i32 (i32, ...) bitcast (i32 (...)* @rem_sees_uses to i32 (i32, ...)*)(i32 %0)
br label %60
60: ; preds = %58, %39
%61 = call i32 (i32*, i32, ...) bitcast (i32 (...)* @def_inc_ipt to i32 (i32*, i32, ...)*)(i32* %4, i32 %0)
%62 = load i32, i32* %4
%63 = icmp eq i32 %62, 0
br i1 %63, label %66, label %64
64: ; preds = %60
%65 = call i32 (i32, ...) bitcast (i32 (...)* @rem_inc_ipt to i32 (i32, ...)*)(i32 %0)
br label %66
66: ; preds = %64, %60
ret void
}