#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 show(const double a[], unsigned elements) {
  unsigned i = 0;
  printf("{");
  for (i; i < elements; ++i) {
    printf("%lf", a[i]);
    if (i < elements - 1)
      printf(", ");
  }
  printf("}\n");
}


x86 assembly (clang, -O0):
<show>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
mov    %esi,-0xc(%rbp)
movl   $0x0,-0x10(%rbp)
lea    0xed3(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x10(%rbp),%eax
cmp    -0xc(%rbp),%eax
jae    118c <show+0x7c>
mov    -0x8(%rbp),%rax
mov    -0x10(%rbp),%ecx
movsd  (%rax,%rcx,8),%xmm0
lea    0xeaf(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
mov    -0x10(%rbp),%eax
mov    -0xc(%rbp),%ecx
sub    $0x1,%ecx
cmp    %ecx,%eax
jae    1179 <show+0x69>
lea    0xe94(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
jmp    117e <show+0x6e>
mov    -0x10(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x10(%rbp)
jmp    1134 <show+0x24>
lea    0xe76(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<show>:
push   %rbp
push   %r15
push   %r14
push   %r13
push   %r12
push   %rbx
push   %rax
mov    %esi,%r14d
mov    %rdi,%r12
mov    $0x7b,%edi
call   1030 <putchar@plt>
test   %r14d,%r14d
je     119a <show+0x6a>
lea    -0x1(%r14),%r13d
mov    %r14d,%ebx
lea    0xea2(%rip),%r14
lea    0xe9f(%rip),%r15
xor    %ebp,%ebp
jmp    1179 <show+0x49>
nopl   0x0(%rax)
add    $0x1,%rbp
cmp    %rbp,%rbx
je     119a <show+0x6a>
movsd  (%r12,%rbp,8),%xmm0
mov    %r14,%rdi
mov    $0x1,%al
call   1050 <printf@plt>
cmp    %r13,%rbp
jae    1170 <show+0x40>
mov    %r15,%rdi
xor    %eax,%eax
call   1050 <printf@plt>
jmp    1170 <show+0x40>
lea    0xe66(%rip),%rdi
add    $0x8,%rsp
pop    %rbx
pop    %r12
pop    %r13
pop    %r14
pop    %r15
pop    %rbp
jmp    1040 <puts@plt>

LLVM IR (-O0):
@.str = [2 x i8] c"{\00"
@.str.1 = [4 x i8] c"%lf\00"
@.str.2 = [3 x i8] c", \00"
@.str.3 = [3 x i8] c"}\0A\00"
define void @show(double* %0, i32 %1) {
%3 = alloca double*
%4 = alloca i32
%5 = alloca i32
store double* %0, double** %3
store i32 %1, i32* %4
store i32 0, i32* %5
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i64 0, i64 0))
%7 = load i32, i32* %5
br label %8
8: ; preds = %26, %2
%9 = load i32, i32* %5
%10 = load i32, i32* %4
%11 = icmp ult i32 %9, %10
br i1 %11, label %12, label %29
12: ; preds = %8
%13 = load double*, double** %3
%14 = load i32, i32* %5
%15 = zext i32 %14 to i64
%16 = getelementptr inbounds double, double* %13, i64 %15
%17 = load double, double* %16
%18 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), double %17)
%19 = load i32, i32* %5
%20 = load i32, i32* %4
%21 = sub i32 %20, 1
%22 = icmp ult i32 %19, %21
br i1 %22, label %23, label %25
23: ; preds = %12
%24 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0))
br label %25
25: ; preds = %23, %12
br label %26
26: ; preds = %25
%27 = load i32, i32* %5
%28 = add i32 %27, 1
store i32 %28, i32* %5
br label %8
29: ; preds = %8
%30 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.3, i64 0, i64 0))
ret void
}

LLVM IR (-O2):
@.str.1 = [4 x i8] c"%lf\00"
@.str.2 = [3 x i8] c", \00"
@str = [2 x i8] c"}\00"
define void @show(double* nocapture %0, i32 %1) {
%3 = tail call i32 @putchar(i32 123)
%4 = icmp eq i32 %1, 0
br i1 %4, label %20, label %5
5: ; preds = %2
%6 = add i32 %1, -1
%7 = zext i32 %6 to i64
%8 = zext i32 %1 to i64
br label %9
9: ; preds = %5, %17
%10 = phi i64 [ 0, %5 ], [ %18, %17 ]
%11 = getelementptr inbounds double, double* %0, i64 %10
%12 = load double, double* %11
%13 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), double %12)
%14 = icmp ult i64 %10, %7
br i1 %14, label %15, label %17
15: ; preds = %9
%16 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0))
br label %17
17: ; preds = %9, %15
%18 = add nuw nsw i64 %10, 1
%19 = icmp eq i64 %18, %8
br i1 %19, label %20, label %9
20: ; preds = %17, %2
%21 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([2 x i8], [2 x i8]* @str, i64 0, i64 0))
ret void
}