float moremorecalldoupper(const int x, char y, float f, int a, int b, char *c,
                          int *d, char e) {
  c[0] += 47;
  c[1] += 47;
  d = 3;
  volatile int wdvc =
      dolower(dolower(a + b, calldoupper(x, 'c', x * 0.03f, 0xfffabcde, 234, c,
                                         &x, 'e')),
              3);
  f = (float)(x / (int)y);
  return dolower(wdvc, a);
}


x86 assembly (clang, -O0):
<moremorecalldoupper>:
push   %rbp
mov    %rsp,%rbp
sub    $0x40,%rsp
mov    %sil,%al
mov    0x10(%rbp),%sil
mov    %edi,-0x4(%rbp)
mov    %al,-0x5(%rbp)
movss  %xmm0,-0xc(%rbp)
mov    %edx,-0x10(%rbp)
mov    %ecx,-0x14(%rbp)
mov    %r8,-0x20(%rbp)
mov    %r9,-0x28(%rbp)
mov    -0x20(%rbp),%rax
movsbl (%rax),%ecx
add    $0x2f,%ecx
mov    %cl,(%rax)
mov    -0x20(%rbp),%rax
movsbl 0x1(%rax),%ecx
add    $0x2f,%ecx
mov    %cl,0x1(%rax)
mov    $0x3,%eax
mov    %rax,-0x28(%rbp)
mov    -0x10(%rbp),%eax
add    -0x14(%rbp),%eax
mov    %eax,-0x30(%rbp)
mov    -0x4(%rbp),%edi
cvtsi2ssl -0x4(%rbp),%xmm0
movss  0xe7c(%rip),%xmm1
mulss  %xmm1,%xmm0
cvtss2sd %xmm0,%xmm0
mov    -0x20(%rbp),%r8
mov    $0x63,%esi
mov    $0xfffabcde,%edx
mov    $0xea,%ecx
lea    -0x4(%rbp),%r9
movl   $0x65,(%rsp)
mov    $0x1,%al
call   1040 <calldoupper@plt>
mov    -0x30(%rbp),%edi
mov    %eax,%esi
mov    $0x0,%al
call   1030 <dolower@plt>
mov    %eax,%edi
mov    $0x3,%esi
mov    $0x0,%al
call   1030 <dolower@plt>
mov    %eax,-0x2c(%rbp)
mov    -0x4(%rbp),%eax
movsbl -0x5(%rbp),%ecx
cltd
idiv   %ecx
cvtsi2ss %eax,%xmm0
movss  %xmm0,-0xc(%rbp)
mov    -0x2c(%rbp),%edi
mov    -0x10(%rbp),%esi
mov    $0x0,%al
call   1030 <dolower@plt>
cvtsi2ss %eax,%xmm0
add    $0x40,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<moremorecalldoupper>:
push   %rbp
push   %rbx
sub    $0x18,%rsp
mov    %edi,0x14(%rsp)
addb   $0x2f,(%r8)
addb   $0x2f,0x1(%r8)
mov    %edx,%ebx
cvtsi2ss %edi,%xmm0
lea    (%rcx,%rbx,1),%ebp
mulss  0xebc(%rip),%xmm0
cvtss2sd %xmm0,%xmm0
movl   $0x65,(%rsp)
lea    0x14(%rsp),%r9
mov    $0x63,%esi
mov    $0xfffabcde,%edx
mov    $0xea,%ecx
mov    $0x1,%al
call   1040 <calldoupper@plt>
mov    %ebp,%edi
mov    %eax,%esi
xor    %eax,%eax
call   1030 <dolower@plt>
mov    %eax,%edi
mov    $0x3,%esi
xor    %eax,%eax
call   1030 <dolower@plt>
mov    %eax,0x10(%rsp)
mov    0x10(%rsp),%edi
mov    %ebx,%esi
xor    %eax,%eax
call   1030 <dolower@plt>
xorps  %xmm0,%xmm0
cvtsi2ss %eax,%xmm0
add    $0x18,%rsp
pop    %rbx
pop    %rbp
ret

LLVM IR (-O0):
define float @moremorecalldoupper(i32 %0, i8 signext %1, float %2, i32 %3, i32 %4, i8* %5, i32* %6, i8 signext %7) {
%9 = alloca i32
%10 = alloca i8
%11 = alloca float
%12 = alloca i32
%13 = alloca i32
%14 = alloca i8*
%15 = alloca i32*
%16 = alloca i8
%17 = alloca i32
store i32 %0, i32* %9
store i8 %1, i8* %10
store float %2, float* %11
store i32 %3, i32* %12
store i32 %4, i32* %13
store i8* %5, i8** %14
store i32* %6, i32** %15
store i8 %7, i8* %16
%18 = load i8*, i8** %14
%19 = getelementptr inbounds i8, i8* %18, i64 0
%20 = load i8, i8* %19
%21 = sext i8 %20 to i32
%22 = add nsw i32 %21, 47
%23 = trunc i32 %22 to i8
store i8 %23, i8* %19
%24 = load i8*, i8** %14
%25 = getelementptr inbounds i8, i8* %24, i64 1
%26 = load i8, i8* %25
%27 = sext i8 %26 to i32
%28 = add nsw i32 %27, 47
%29 = trunc i32 %28 to i8
store i8 %29, i8* %25
store i32* inttoptr (i64 3 to i32*), i32** %15
%30 = load i32, i32* %12
%31 = load i32, i32* %13
%32 = add nsw i32 %30, %31
%33 = load i32, i32* %9
%34 = load i32, i32* %9
%35 = sitofp i32 %34 to float
%36 = fmul float %35, 0x3F9EB851E0000000
%37 = fpext float %36 to double
%38 = load i8*, i8** %14
%39 = call i32 (i32, i32, double, i32, i32, i8*, i32*, i32, ...) bitcast (i32 (...)* @calldoupper to i32 (i32, i32, double, i32, i32, i8*, i32*, i32, ...)*)(i32 %33, i32 99, double %37, i32 -344866, i32 234, i8* %38, i32* %9, i32 101)
%40 = call i32 (i32, i32, ...) bitcast (i32 (...)* @dolower to i32 (i32, i32, ...)*)(i32 %32, i32 %39)
%41 = call i32 (i32, i32, ...) bitcast (i32 (...)* @dolower to i32 (i32, i32, ...)*)(i32 %40, i32 3)
store volatile i32 %41, i32* %17
%42 = load i32, i32* %9
%43 = load i8, i8* %10
%44 = sext i8 %43 to i32
%45 = sdiv i32 %42, %44
%46 = sitofp i32 %45 to float
store float %46, float* %11
%47 = load volatile i32, i32* %17
%48 = load i32, i32* %12
%49 = call i32 (i32, i32, ...) bitcast (i32 (...)* @dolower to i32 (i32, i32, ...)*)(i32 %47, i32 %48)
%50 = sitofp i32 %49 to float
ret float %50
}

LLVM IR (-O2):
define float @moremorecalldoupper(i32 %0, i8 signext %1, float %2, i32 %3, i32 %4, i8* %5, i32* nocapture readnone %6, i8 signext %7) {
%9 = alloca i32
%10 = alloca i32
store i32 %0, i32* %9
%11 = load i8, i8* %5
%12 = add i8 %11, 47
store i8 %12, i8* %5
%13 = getelementptr inbounds i8, i8* %5, i64 1
%14 = load i8, i8* %13
%15 = add i8 %14, 47
store i8 %15, i8* %13
%16 = bitcast i32* %10 to i8*
%17 = add nsw i32 %4, %3
%18 = sitofp i32 %0 to float
%19 = fmul float %18, 0x3F9EB851E0000000
%20 = fpext float %19 to double
%21 = call i32 (i32, i32, double, i32, i32, i8*, i32*, i32, ...) bitcast (i32 (...)* @calldoupper to i32 (i32, i32, double, i32, i32, i8*, i32*, i32, ...)*)(i32 %0, i32 99, double %20, i32 -344866, i32 234, i8* %5, i32* %9, i32 101)
%22 = call i32 (i32, i32, ...) bitcast (i32 (...)* @dolower to i32 (i32, i32, ...)*)(i32 %17, i32 %21)
%23 = call i32 (i32, i32, ...) bitcast (i32 (...)* @dolower to i32 (i32, i32, ...)*)(i32 %22, i32 3)
store volatile i32 %23, i32* %10
%24 = load volatile i32, i32* %10
%25 = call i32 (i32, i32, ...) bitcast (i32 (...)* @dolower to i32 (i32, i32, ...)*)(i32 %24, i32 %3)
%26 = sitofp i32 %25 to float
ret float %26
}