#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 */
#define SIGABRT 133
#define SIGFPE 132
#define SIGILL 131
#define SIGINT 130
#define SIGSEGV 129
#define SIGTERM 128
int /*<<< orphan*/ snprintf(char *, int, char *, int);
char const *get_signal_name(int signal) {
  static char str[10];
  switch (signal) {
  case SIGABRT:
    return "SIGABRT";
  case SIGFPE:
    return "SIGFPE";
  case SIGILL:
    return "SIGILL";
  case SIGINT:
    return "SIGINT";
  case SIGSEGV:
    return "SIGSEGV";
  case SIGTERM:
    return "SIGTERM";
  default:
    snprintf(str, 10, "%d", signal);
    return str;
  }
}


x86 assembly (clang, -O0):
<get_signal_name>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %edi,-0xc(%rbp)
mov    -0xc(%rbp),%eax
add    $0xffffff80,%eax
mov    %eax,%ecx
mov    %rcx,-0x18(%rbp)
sub    $0x5,%eax
ja     11a4 <get_signal_name+0x94>
mov    -0x18(%rbp),%rax
lea    0xec5(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
jmp    *%rax
lea    0xecd(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11ca <get_signal_name+0xba>
lea    0xec5(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11ca <get_signal_name+0xba>
lea    0xebc(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11ca <get_signal_name+0xba>
lea    0xeb3(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11ca <get_signal_name+0xba>
lea    0xeaa(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11ca <get_signal_name+0xba>
lea    0xea2(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11ca <get_signal_name+0xba>
mov    -0xc(%rbp),%ecx
lea    0x2e7b(%rip),%rdi
mov    $0xa,%esi
lea    0xe8b(%rip),%rdx
call   1030 <snprintf@plt>
lea    0x2e63(%rip),%rax
mov    %rax,-0x8(%rbp)
mov    -0x8(%rbp),%rax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<get_signal_name>:
push   %rbx
mov    %edi,%ecx
lea    -0x80(%rcx),%eax
cmp    $0x6,%eax
jae    112d <get_signal_name+0x1d>
cltq
lea    0xf0c(%rip),%rcx
movslq (%rcx,%rax,4),%rbx
add    %rcx,%rbx
jmp    1148 <get_signal_name+0x38>
lea    0x2ef5(%rip),%rbx
lea    0xef2(%rip),%rdx
mov    %rbx,%rdi
mov    $0xa,%esi
call   1030 <snprintf@plt>
mov    %rbx,%rax
pop    %rbx
ret

LLVM IR (-O0):
@get_signal_name.str = internal global [10 x i8] zeroinitializer
@.str = [8 x i8] c"SIGABRT\00"
@.str.1 = [7 x i8] c"SIGFPE\00"
@.str.2 = [7 x i8] c"SIGILL\00"
@.str.3 = [7 x i8] c"SIGINT\00"
@.str.4 = [8 x i8] c"SIGSEGV\00"
@.str.5 = [8 x i8] c"SIGTERM\00"
@.str.6 = [3 x i8] c"%d\00"
define i8* @get_signal_name(i32 %0) {
%2 = alloca i8*
%3 = alloca i32
store i32 %0, i32* %3
%4 = load i32, i32* %3
switch i32 %4, label %11 [
i32 133, label %5
i32 132, label %6
i32 131, label %7
i32 130, label %8
i32 129, label %9
i32 128, label %10
]
5: ; preds = %1
store i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0), i8** %2
br label %14
6: ; preds = %1
store i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), i8** %2
br label %14
7: ; preds = %1
store i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.2, i64 0, i64 0), i8** %2
br label %14
8: ; preds = %1
store i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8** %2
br label %14
9: ; preds = %1
store i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.4, i64 0, i64 0), i8** %2
br label %14
10: ; preds = %1
store i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.5, i64 0, i64 0), i8** %2
br label %14
11: ; preds = %1
%12 = load i32, i32* %3
%13 = call i32 @snprintf(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @get_signal_name.str, i64 0, i64 0), i32 10, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.6, i64 0, i64 0), i32 %12)
store i8* getelementptr inbounds ([10 x i8], [10 x i8]* @get_signal_name.str, i64 0, i64 0), i8** %2
br label %14
14: ; preds = %11, %10, %9, %8, %7, %6, %5
%15 = load i8*, i8** %2
ret i8* %15
}

LLVM IR (-O2):
@get_signal_name.str = internal global [10 x i8] zeroinitializer
@.str = [8 x i8] c"SIGABRT\00"
@.str.1 = [7 x i8] c"SIGFPE\00"
@.str.2 = [7 x i8] c"SIGILL\00"
@.str.3 = [7 x i8] c"SIGINT\00"
@.str.4 = [8 x i8] c"SIGSEGV\00"
@.str.5 = [8 x i8] c"SIGTERM\00"
@.str.6 = [3 x i8] c"%d\00"
@reltable.get_signal_name = [6 x i32] [i32 trunc (i64 sub (i64 ptrtoint ([8 x i8]* @.str.5 to i64), i64 ptrtoint ([6 x i32]* @reltable.get_signal_name to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([8 x i8]* @.str.4 to i64), i64 ptrtoint ([6 x i32]* @reltable.get_signal_name to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([7 x i8]* @.str.3 to i64), i64 ptrtoint ([6 x i32]* @reltable.get_signal_name to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([7 x i8]* @.str.2 to i64), i64 ptrtoint ([6 x i32]* @reltable.get_signal_name to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([7 x i8]* @.str.1 to i64), i64 ptrtoint ([6 x i32]* @reltable.get_signal_name to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([8 x i8]* @.str to i64), i64 ptrtoint ([6 x i32]* @reltable.get_signal_name to i64)) to i32)]
define i8* @get_signal_name(i32 %0) {
%2 = add i32 %0, -128
%3 = icmp ult i32 %2, 6
br i1 %3, label %6, label %4
4: ; preds = %1
%5 = tail call i32 @snprintf(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @get_signal_name.str, i64 0, i64 0), i32 10, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.6, i64 0, i64 0), i32 %0)
br label %10
6: ; preds = %1
%7 = sext i32 %2 to i64
%8 = shl i64 %7, 2
%9 = call i8* @llvm.load.relative.i64(i8* bitcast ([6 x i32]* @reltable.get_signal_name to i8*), i64 %8)
br label %10
10: ; preds = %6, %4
%11 = phi i8* [ getelementptr inbounds ([10 x i8], [10 x i8]* @get_signal_name.str, i64 0, i64 0), %4 ], [ %9, %6 ]
ret i8* %11
}