#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*/ UartPrintfCritical(char *);
int /*<<< orphan*/ nputs(char *);
int main(void) {
  nputs("Hello world !\r\n");
  nputs("UART works well...\r\n");
  UartPrintfCritical("Starting RTOS\n");
  UartPrintfCritical("Starting UartInit\n");
  UartPrintfCritical("Starting OS_ThreadCreate\n");
  UartPrintfCritical("Starting OS_Start\n");
  UartPrintfCritical("Finishing Main\n");
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeca(%rip),%rdi
call   1040 <nputs@plt>
lea    0xece(%rip),%rdi
call   1040 <nputs@plt>
lea    0xed7(%rip),%rdi
call   1030 <UartPrintfCritical@plt>
lea    0xeda(%rip),%rdi
call   1030 <UartPrintfCritical@plt>
lea    0xee1(%rip),%rdi
call   1030 <UartPrintfCritical@plt>
lea    0xeef(%rip),%rdi
call   1030 <UartPrintfCritical@plt>
lea    0xef6(%rip),%rdi
call   1030 <UartPrintfCritical@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xed8(%rip),%rdi
call   1040 <nputs@plt>
lea    0xedc(%rip),%rdi
call   1040 <nputs@plt>
lea    0xee5(%rip),%rdi
call   1030 <UartPrintfCritical@plt>
lea    0xee8(%rip),%rdi
call   1030 <UartPrintfCritical@plt>
lea    0xeef(%rip),%rdi
call   1030 <UartPrintfCritical@plt>
lea    0xefd(%rip),%rdi
call   1030 <UartPrintfCritical@plt>
lea    0xf04(%rip),%rdi
call   1030 <UartPrintfCritical@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [16 x i8] c"Hello world !\0D\0A\00"
@.str.1 = [21 x i8] c"UART works well...\0D\0A\00"
@.str.2 = [15 x i8] c"Starting RTOS\0A\00"
@.str.3 = [19 x i8] c"Starting UartInit\0A\00"
@.str.4 = [26 x i8] c"Starting OS_ThreadCreate\0A\00"
@.str.5 = [19 x i8] c"Starting OS_Start\0A\00"
@.str.6 = [16 x i8] c"Finishing Main\0A\00"
define i32 @main() {
%1 = alloca i32
store i32 0, i32* %1
%2 = call i32 @nputs(i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str, i64 0, i64 0))
%3 = call i32 @nputs(i8* getelementptr inbounds ([21 x i8], [21 x i8]* @.str.1, i64 0, i64 0))
%4 = call i32 @UartPrintfCritical(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.2, i64 0, i64 0))
%5 = call i32 @UartPrintfCritical(i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str.3, i64 0, i64 0))
%6 = call i32 @UartPrintfCritical(i8* getelementptr inbounds ([26 x i8], [26 x i8]* @.str.4, i64 0, i64 0))
%7 = call i32 @UartPrintfCritical(i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str.5, i64 0, i64 0))
%8 = call i32 @UartPrintfCritical(i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str.6, i64 0, i64 0))
ret i32 0
}

LLVM IR (-O2):
@.str = [16 x i8] c"Hello world !\0D\0A\00"
@.str.1 = [21 x i8] c"UART works well...\0D\0A\00"
@.str.2 = [15 x i8] c"Starting RTOS\0A\00"
@.str.3 = [19 x i8] c"Starting UartInit\0A\00"
@.str.4 = [26 x i8] c"Starting OS_ThreadCreate\0A\00"
@.str.5 = [19 x i8] c"Starting OS_Start\0A\00"
@.str.6 = [16 x i8] c"Finishing Main\0A\00"
define i32 @main() {
%1 = tail call i32 @nputs(i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str, i64 0, i64 0))
%2 = tail call i32 @nputs(i8* getelementptr inbounds ([21 x i8], [21 x i8]* @.str.1, i64 0, i64 0))
%3 = tail call i32 @UartPrintfCritical(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.2, i64 0, i64 0))
%4 = tail call i32 @UartPrintfCritical(i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str.3, i64 0, i64 0))
%5 = tail call i32 @UartPrintfCritical(i8* getelementptr inbounds ([26 x i8], [26 x i8]* @.str.4, i64 0, i64 0))
%6 = tail call i32 @UartPrintfCritical(i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str.5, i64 0, i64 0))
%7 = tail call i32 @UartPrintfCritical(i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str.6, i64 0, i64 0))
ret i32 0
}