#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 *, int);
int /*<<< orphan*/ scanf(char *, int *);
int GreaterFunc(int argc, char **argv) {
  int a, b, c;
  scanf("%d", &a);
  scanf("%d", &b);
  c = a > b ? a : b;
  printf("The greater one is %d\n", c);
  return 1;
}


x86 assembly (clang, -O0):
<GreaterFunc>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %edi,-0x4(%rbp)
mov    %rsi,-0x10(%rbp)
lea    0xeca(%rip),%rdi
lea    -0x14(%rbp),%rsi
call   1040 <scanf@plt>
lea    0xeba(%rip),%rdi
lea    -0x18(%rbp),%rsi
call   1040 <scanf@plt>
mov    -0x14(%rbp),%eax
cmp    -0x18(%rbp),%eax
jle    1166 <GreaterFunc+0x46>
mov    -0x14(%rbp),%eax
mov    %eax,-0x20(%rbp)
jmp    116c <GreaterFunc+0x4c>
mov    -0x18(%rbp),%eax
mov    %eax,-0x20(%rbp)
mov    -0x20(%rbp),%eax
mov    %eax,-0x1c(%rbp)
mov    -0x1c(%rbp),%esi
lea    0xe87(%rip),%rdi
call   1030 <printf@plt>
mov    $0x1,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<GreaterFunc>:
push   %rbx
sub    $0x10,%rsp
lea    0xed4(%rip),%rbx
lea    0xc(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
lea    0x8(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
mov    0xc(%rsp),%eax
mov    0x8(%rsp),%esi
cmp    %esi,%eax
cmovg  %eax,%esi
lea    0xea9(%rip),%rdi
call   1030 <printf@plt>
mov    $0x1,%eax
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [3 x i8] c"%d\00"
@.str.1 = [23 x i8] c"The greater one is %d\0A\00"
define i32 @GreaterFunc(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i8**
%5 = alloca i32
%6 = alloca i32
%7 = alloca i32
store i32 %0, i32* %3
store i8** %1, i8*** %4
%8 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %5)
%9 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %6)
%10 = load i32, i32* %5
%11 = load i32, i32* %6
%12 = icmp sgt i32 %10, %11
br i1 %12, label %13, label %15
13: ; preds = %2
%14 = load i32, i32* %5
br label %17
15: ; preds = %2
%16 = load i32, i32* %6
br label %17
17: ; preds = %15, %13
%18 = phi i32 [ %14, %13 ], [ %16, %15 ]
store i32 %18, i32* %7
%19 = load i32, i32* %7
%20 = call i32 @printf(i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str.1, i64 0, i64 0), i32 %19)
ret i32 1
}

LLVM IR (-O2):
@.str = [3 x i8] c"%d\00"
@.str.1 = [23 x i8] c"The greater one is %d\0A\00"
define i32 @GreaterFunc(i32 %0, i8** nocapture readnone %1) {
%3 = alloca i32
%4 = alloca i32
%5 = bitcast i32* %3 to i8*
%6 = bitcast i32* %4 to i8*
%7 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %3)
%8 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %4)
%9 = load i32, i32* %3
%10 = load i32, i32* %4
%11 = icmp sgt i32 %9, %10
%12 = select i1 %11, i32 %9, i32 %10
%13 = call i32 @printf(i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str.1, i64 0, i64 0), i32 %12)
ret i32 1
}