#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 */
double menor_nota(float *);
int /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ scanf(char *, float *);
int main() {
  float notas[3];
  printf("Informe a nota dos 30 alunos: ");
  for (int i = 0; i < 3; i++)
    scanf("%f", &notas[i]);
  printf("\n A menor nota foi: %2.2f", menor_nota(notas));
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeba(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movl   $0x0,-0x14(%rbp)
cmpl   $0x3,-0x14(%rbp)
jge    1187 <main+0x57>
movslq -0x14(%rbp),%rax
lea    -0x10(%rbp),%rsi
shl    $0x2,%rax
add    %rax,%rsi
lea    0xeab(%rip),%rdi
call   1040 <scanf@plt>
mov    -0x14(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x14(%rbp)
jmp    1154 <main+0x24>
lea    -0x10(%rbp),%rdi
call   1050 <menor_nota@plt>
lea    0xe8b(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
mov    -0x4(%rbp),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r14
push   %rbx
sub    $0x18,%rsp
lea    0xec2(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xed3(%rip),%rbx
lea    0xc(%rsp),%r14
mov    %rbx,%rdi
mov    %r14,%rsi
call   1040 <scanf@plt>
lea    0x10(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
lea    0x14(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
mov    %r14,%rdi
call   1050 <menor_nota@plt>
lea    0xe9d(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x18,%rsp
pop    %rbx
pop    %r14
ret

LLVM IR (-O0):
@.str = [31 x i8] c"Informe a nota dos 30 alunos: \00"
@.str.1 = [3 x i8] c"%f\00"
@.str.2 = [26 x i8] c"\0A A menor nota foi: %2.2f\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca [3 x float]
%3 = alloca i32
store i32 0, i32* %1
%4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([31 x i8], [31 x i8]* @.str, i64 0, i64 0))
store i32 0, i32* %3
br label %5
5: ; preds = %13, %0
%6 = load i32, i32* %3
%7 = icmp slt i32 %6, 3
br i1 %7, label %8, label %16
8: ; preds = %5
%9 = load i32, i32* %3
%10 = sext i32 %9 to i64
%11 = getelementptr inbounds [3 x float], [3 x float]* %2, i64 0, i64 %10
%12 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %11)
br label %13
13: ; preds = %8
%14 = load i32, i32* %3
%15 = add nsw i32 %14, 1
store i32 %15, i32* %3
br label %5
16: ; preds = %5
%17 = getelementptr inbounds [3 x float], [3 x float]* %2, i64 0, i64 0
%18 = call double @menor_nota(float* %17)
%19 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([26 x i8], [26 x i8]* @.str.2, i64 0, i64 0), double %18)
%20 = load i32, i32* %1
ret i32 %20
}

LLVM IR (-O2):
@.str = [31 x i8] c"Informe a nota dos 30 alunos: \00"
@.str.1 = [3 x i8] c"%f\00"
@.str.2 = [26 x i8] c"\0A A menor nota foi: %2.2f\00"
define i32 @main() {
%1 = alloca [3 x float]
%2 = bitcast [3 x float]* %1 to i8*
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([31 x i8], [31 x i8]* @.str, i64 0, i64 0))
%4 = getelementptr inbounds [3 x float], [3 x float]* %1, i64 0, i64 0
%5 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %4)
%6 = getelementptr inbounds [3 x float], [3 x float]* %1, i64 0, i64 1
%7 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %6)
%8 = getelementptr inbounds [3 x float], [3 x float]* %1, i64 0, i64 2
%9 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %8)
%10 = call double @menor_nota(float* %4)
%11 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([26 x i8], [26 x i8]* @.str.2, i64 0, i64 0), double %10)
ret i32 0
}