#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 */
struct timeval {
  scalar_t__ tv_sec;
  scalar_t__ tv_usec;
};

/* Variables and functions */
int tvlt(const struct timeval *a, const struct timeval *b) {
  if (a->tv_sec < b->tv_sec)
    return 1;
  if (a->tv_sec == b->tv_sec && a->tv_usec < b->tv_usec)
    return 1;
  return 0;
}


x86 assembly (clang, -O0):
<tvlt>:
push   %rbp
mov    %rsp,%rbp
mov    %rdi,-0x10(%rbp)
mov    %rsi,-0x18(%rbp)
mov    -0x10(%rbp),%rax
mov    (%rax),%rax
mov    -0x18(%rbp),%rcx
cmp    (%rcx),%rax
jge    112c <tvlt+0x2c>
movl   $0x1,-0x4(%rbp)
jmp    1169 <tvlt+0x69>
mov    -0x10(%rbp),%rax
mov    (%rax),%rax
mov    -0x18(%rbp),%rcx
cmp    (%rcx),%rax
jne    1162 <tvlt+0x62>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rax
mov    -0x18(%rbp),%rcx
cmp    0x8(%rcx),%rax
jge    1162 <tvlt+0x62>
movl   $0x1,-0x4(%rbp)
jmp    1169 <tvlt+0x69>
movl   $0x0,-0x4(%rbp)
mov    -0x4(%rbp),%eax
pop    %rbp
ret

x86 assembly (clang, -O2):
<tvlt>:
mov    (%rsi),%rcx
mov    $0x1,%eax
cmp    %rcx,(%rdi)
jl     111b <tvlt+0x1b>
jne    1119 <tvlt+0x19>
mov    0x8(%rdi),%rcx
cmp    0x8(%rsi),%rcx
jl     111b <tvlt+0x1b>
xor    %eax,%eax
ret

LLVM IR (-O0):
%struct.timeval = type { i64, i64 }
define i32 @tvlt(%struct.timeval* %0, %struct.timeval* %1) {
%3 = alloca i32
%4 = alloca %struct.timeval*
%5 = alloca %struct.timeval*
store %struct.timeval* %0, %struct.timeval** %4
store %struct.timeval* %1, %struct.timeval** %5
%6 = load %struct.timeval*, %struct.timeval** %4
%7 = getelementptr inbounds %struct.timeval, %struct.timeval* %6, i32 0, i32 0
%8 = load i64, i64* %7
%9 = load %struct.timeval*, %struct.timeval** %5
%10 = getelementptr inbounds %struct.timeval, %struct.timeval* %9, i32 0, i32 0
%11 = load i64, i64* %10
%12 = icmp slt i64 %8, %11
br i1 %12, label %13, label %14
13: ; preds = %2
store i32 1, i32* %3
br label %32
14: ; preds = %2
%15 = load %struct.timeval*, %struct.timeval** %4
%16 = getelementptr inbounds %struct.timeval, %struct.timeval* %15, i32 0, i32 0
%17 = load i64, i64* %16
%18 = load %struct.timeval*, %struct.timeval** %5
%19 = getelementptr inbounds %struct.timeval, %struct.timeval* %18, i32 0, i32 0
%20 = load i64, i64* %19
%21 = icmp eq i64 %17, %20
br i1 %21, label %22, label %31
22: ; preds = %14
%23 = load %struct.timeval*, %struct.timeval** %4
%24 = getelementptr inbounds %struct.timeval, %struct.timeval* %23, i32 0, i32 1
%25 = load i64, i64* %24
%26 = load %struct.timeval*, %struct.timeval** %5
%27 = getelementptr inbounds %struct.timeval, %struct.timeval* %26, i32 0, i32 1
%28 = load i64, i64* %27
%29 = icmp slt i64 %25, %28
br i1 %29, label %30, label %31
30: ; preds = %22
store i32 1, i32* %3
br label %32
31: ; preds = %22, %14
store i32 0, i32* %3
br label %32
32: ; preds = %31, %30, %13
%33 = load i32, i32* %3
ret i32 %33
}

LLVM IR (-O2):
%struct.timeval = type { i64, i64 }
define i32 @tvlt(%struct.timeval* nocapture %0, %struct.timeval* nocapture %1) {
%3 = getelementptr inbounds %struct.timeval, %struct.timeval* %0, i64 0, i32 0
%4 = load i64, i64* %3
%5 = getelementptr inbounds %struct.timeval, %struct.timeval* %1, i64 0, i32 0
%6 = load i64, i64* %5
%7 = icmp slt i64 %4, %6
br i1 %7, label %17, label %8
8: ; preds = %2
%9 = icmp eq i64 %4, %6
br i1 %9, label %10, label %16
10: ; preds = %8
%11 = getelementptr inbounds %struct.timeval, %struct.timeval* %0, i64 0, i32 1
%12 = load i64, i64* %11
%13 = getelementptr inbounds %struct.timeval, %struct.timeval* %1, i64 0, i32 1
%14 = load i64, i64* %13
%15 = icmp slt i64 %12, %14
br i1 %15, label %17, label %16
16: ; preds = %10, %8
br label %17
17: ; preds = %10, %2, %16
%18 = phi i32 [ 0, %16 ], [ 1, %2 ], [ 1, %10 ]
ret i32 %18
}