#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 atof(char *);
int atoi(char *);
int /*<<< orphan*/ fprintf(int /*<<< orphan*/, char *, char *);
int /*<<< orphan*/ printf(char *, int, ...);
int /*<<< orphan*/ stderr;
int main(int argc, char *argv[]) {
  if (argc != 4) {
    fprintf(stderr, "Usage: %s <string> <int> <float>\n", argv[0]);
    return 1;
  }
  printf("argument count = %d\n", argc);
  printf("argument %d = %s\n", 0, argv[0]);
  printf("argument %d = %s\n", 1, argv[1]);
  printf("argument %d = %d\n", 2, atoi(argv[2]));
  printf("argument %d = %lf\n", 3, atof(argv[3]));
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
cmpl   $0x4,-0x8(%rbp)
je     1188 <main+0x48>
mov    0x2e79(%rip),%rax
mov    (%rax),%edi
mov    -0x10(%rbp),%rax
mov    (%rax),%rdx
lea    0xe89(%rip),%rsi
call   1050 <fprintf@plt>
movl   $0x1,-0x4(%rbp)
jmp    1216 <main+0xd6>
mov    -0x8(%rbp),%esi
lea    0xe90(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
mov    -0x10(%rbp),%rax
mov    (%rax),%rdx
lea    0xe90(%rip),%rdi
xor    %esi,%esi
mov    $0x0,%al
call   1040 <printf@plt>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rdx
lea    0xe78(%rip),%rdi
mov    $0x1,%esi
mov    $0x0,%al
call   1040 <printf@plt>
mov    -0x10(%rbp),%rax
mov    0x10(%rax),%rdi
call   1060 <atoi@plt>
mov    %eax,%edx
lea    0xe68(%rip),%rdi
mov    $0x2,%esi
mov    $0x0,%al
call   1040 <printf@plt>
mov    -0x10(%rbp),%rax
mov    0x18(%rax),%rdi
call   1030 <atof@plt>
mov    %eax,%edx
lea    0xe58(%rip),%rdi
mov    $0x3,%esi
mov    $0x0,%al
call   1040 <printf@plt>
movl   $0x0,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbp
push   %r14
push   %rbx
mov    %rsi,%rbx
cmp    $0x4,%edi
jne    11c8 <main+0x88>
lea    0xecf(%rip),%rdi
xor    %ebp,%ebp
mov    $0x4,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    (%rbx),%rdx
lea    0xecc(%rip),%r14
mov    %r14,%rdi
xor    %esi,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x8(%rbx),%rdx
mov    %r14,%rdi
mov    $0x1,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x10(%rbx),%rdi
call   1060 <atoi@plt>
lea    0xeaf(%rip),%rdi
mov    $0x2,%esi
mov    %eax,%edx
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x18(%rbx),%rdi
call   1030 <atof@plt>
lea    0xea3(%rip),%rdi
mov    $0x3,%esi
mov    %eax,%edx
xor    %eax,%eax
call   1040 <printf@plt>
jmp    11e5 <main+0xa5>
mov    0x2e11(%rip),%rax
mov    (%rax),%edi
mov    (%rbx),%rdx
lea    0xe25(%rip),%rsi
call   1050 <fprintf@plt>
mov    $0x1,%ebp
mov    %ebp,%eax
pop    %rbx
pop    %r14
pop    %rbp
ret

LLVM IR (-O0):
@stderr = global i32 0
@.str = [34 x i8] c"Usage: %s <string> <int> <float>\0A\00"
@.str.1 = [21 x i8] c"argument count = %d\0A\00"
@.str.2 = [18 x i8] c"argument %d = %s\0A\00"
@.str.3 = [18 x i8] c"argument %d = %d\0A\00"
@.str.4 = [19 x i8] c"argument %d = %lf\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%6 = load i32, i32* %4
%7 = icmp ne i32 %6, 4
br i1 %7, label %8, label %14
8: ; preds = %2
%9 = load i32, i32* @stderr
%10 = load i8**, i8*** %5
%11 = getelementptr inbounds i8*, i8** %10, i64 0
%12 = load i8*, i8** %11
%13 = call i32 @fprintf(i32 %9, i8* getelementptr inbounds ([34 x i8], [34 x i8]* @.str, i64 0, i64 0), i8* %12)
store i32 1, i32* %3
br label %35
14: ; preds = %2
%15 = load i32, i32* %4
%16 = call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([21 x i8], [21 x i8]* @.str.1, i64 0, i64 0), i32 %15)
%17 = load i8**, i8*** %5
%18 = getelementptr inbounds i8*, i8** %17, i64 0
%19 = load i8*, i8** %18
%20 = call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str.2, i64 0, i64 0), i32 0, i8* %19)
%21 = load i8**, i8*** %5
%22 = getelementptr inbounds i8*, i8** %21, i64 1
%23 = load i8*, i8** %22
%24 = call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str.2, i64 0, i64 0), i32 1, i8* %23)
%25 = load i8**, i8*** %5
%26 = getelementptr inbounds i8*, i8** %25, i64 2
%27 = load i8*, i8** %26
%28 = call i32 @atoi(i8* %27)
%29 = call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str.3, i64 0, i64 0), i32 2, i32 %28)
%30 = load i8**, i8*** %5
%31 = getelementptr inbounds i8*, i8** %30, i64 3
%32 = load i8*, i8** %31
%33 = call i32 @atof(i8* %32)
%34 = call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str.4, i64 0, i64 0), i32 3, i32 %33)
store i32 0, i32* %3
br label %35
35: ; preds = %14, %8
%36 = load i32, i32* %3
ret i32 %36
}

LLVM IR (-O2):
@stderr = global i32 0
@.str = [34 x i8] c"Usage: %s <string> <int> <float>\0A\00"
@.str.1 = [21 x i8] c"argument count = %d\0A\00"
@.str.2 = [18 x i8] c"argument %d = %s\0A\00"
@.str.3 = [18 x i8] c"argument %d = %d\0A\00"
@.str.4 = [19 x i8] c"argument %d = %lf\0A\00"
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = icmp eq i32 %0, 4
br i1 %3, label %8, label %4
4: ; preds = %2
%5 = load i32, i32* @stderr
%6 = load i8*, i8** %1
%7 = tail call i32 @fprintf(i32 %5, i8* getelementptr inbounds ([34 x i8], [34 x i8]* @.str, i64 0, i64 0), i8* %6)
br label %23
8: ; preds = %2
%9 = tail call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([21 x i8], [21 x i8]* @.str.1, i64 0, i64 0), i32 4)
%10 = load i8*, i8** %1
%11 = tail call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str.2, i64 0, i64 0), i32 0, i8* %10)
%12 = getelementptr inbounds i8*, i8** %1, i64 1
%13 = load i8*, i8** %12
%14 = tail call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str.2, i64 0, i64 0), i32 1, i8* %13)
%15 = getelementptr inbounds i8*, i8** %1, i64 2
%16 = load i8*, i8** %15
%17 = tail call i32 @atoi(i8* %16)
%18 = tail call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str.3, i64 0, i64 0), i32 2, i32 %17)
%19 = getelementptr inbounds i8*, i8** %1, i64 3
%20 = load i8*, i8** %19
%21 = tail call i32 @atof(i8* %20)
%22 = tail call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str.4, i64 0, i64 0), i32 3, i32 %21)
br label %23
23: ; preds = %8, %4
%24 = phi i32 [ 1, %4 ], [ 0, %8 ]
ret i32 %24
}