#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*/ printf(char *, ...);
void print_double_vector(double *a, int n) {
  int i;
  printf("[");
  for (i = 1; i <= n; i++)
    printf("%f ", a[i]);
  printf("]\n\n");
}


x86 assembly (clang, -O0):
<print_double_vector>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
mov    %esi,-0xc(%rbp)
lea    0xeda(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movl   $0x1,-0x10(%rbp)
mov    -0x10(%rbp),%eax
cmp    -0xc(%rbp),%eax
jg     1169 <print_double_vector+0x59>
mov    -0x8(%rbp),%rax
movslq -0x10(%rbp),%rcx
movsd  (%rax,%rcx,8),%xmm0
lea    0xeae(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
mov    -0x10(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x10(%rbp)
jmp    1134 <print_double_vector+0x24>
lea    0xe96(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<print_double_vector>:
push   %r15
push   %r14
push   %r12
push   %rbx
push   %rax
mov    %esi,%r12d
mov    %rdi,%r14
mov    $0x5b,%edi
call   1030 <putchar@plt>
test   %r12d,%r12d
jle    1179 <print_double_vector+0x49>
add    $0x1,%r12d
mov    $0x1,%ebx
lea    0xea3(%rip),%r15
nopl   (%rax)
movsd  (%r14,%rbx,8),%xmm0
mov    %r15,%rdi
mov    $0x1,%al
call   1050 <printf@plt>
add    $0x1,%rbx
cmp    %rbx,%r12
jne    1160 <print_double_vector+0x30>
lea    0xe84(%rip),%rdi
add    $0x8,%rsp
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
jmp    1040 <puts@plt>

LLVM IR (-O0):
@.str = [2 x i8] c"[\00"
@.str.1 = [4 x i8] c"%f \00"
@.str.2 = [4 x i8] c"]\0A\0A\00"
define void @print_double_vector(double* %0, i32 %1) {
%3 = alloca double*
%4 = alloca i32
%5 = alloca i32
store double* %0, double** %3
store i32 %1, i32* %4
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i64 0, i64 0))
store i32 1, i32* %5
br label %7
7: ; preds = %18, %2
%8 = load i32, i32* %5
%9 = load i32, i32* %4
%10 = icmp sle i32 %8, %9
br i1 %10, label %11, label %21
11: ; preds = %7
%12 = load double*, double** %3
%13 = load i32, i32* %5
%14 = sext i32 %13 to i64
%15 = getelementptr inbounds double, double* %12, i64 %14
%16 = load double, double* %15
%17 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), double %16)
br label %18
18: ; preds = %11
%19 = load i32, i32* %5
%20 = add nsw i32 %19, 1
store i32 %20, i32* %5
br label %7
21: ; preds = %7
%22 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0))
ret void
}

LLVM IR (-O2):
@.str.1 = [4 x i8] c"%f \00"
@str = [3 x i8] c"]\0A\00"
define void @print_double_vector(double* nocapture %0, i32 %1) {
%3 = tail call i32 @putchar(i32 91)
%4 = icmp slt i32 %1, 1
br i1 %4, label %15, label %5
5: ; preds = %2
%6 = add nuw i32 %1, 1
%7 = zext i32 %6 to i64
br label %8
8: ; preds = %5, %8
%9 = phi i64 [ 1, %5 ], [ %13, %8 ]
%10 = getelementptr inbounds double, double* %0, i64 %9
%11 = load double, double* %10
%12 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), double %11)
%13 = add nuw nsw i64 %9, 1
%14 = icmp eq i64 %13, %7
br i1 %14, label %15, label %8
15: ; preds = %8, %2
%16 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @str, i64 0, i64 0))
ret void
}