最近又听到有人说 Rust 做不了高性能程序的原因是内插的边界检查会降低程序运行速度，我想这么多年了应该 Rust 开发团队不会不知道这个问题，因此做了个简单的实验来测试一下是不是这方面已经有了长足的进步
use std::time::{SystemTime, UNIX_EPOCH};
const N: i32 = 13;
fn clock_realtime() -> i64 {
let start = SystemTime::now();
let since_the_epoch = start
.duration_since(UNIX_EPOCH)
.expect("Time went backwards");
since_the_epoch.as_millis() as i64
}
fn array_check(array: &[i32], row: i32) -> bool {
if row == 0 {
true
} else {
let x0 = array[row as usize];
for y in 0..row {
let x = array[y as usize];
if x == x0 {
return false;
} else if x - x0 == row - y {
return false;
} else if x0 - x == row - y {
return false;
}
}
true
}
}
fn queen() -> i32 {
let mut array = [0; N as usize];
let mut found = 0;
let mut row = 0;
let mut done = false;
while !done {
if array_check(&array, row) {
if row == N - 1 {
found += 1;
} else {
row += 1;
array[row as usize] = 0;
continue;
}
}
array[row as usize] += 1;
while array[row as usize] >= N {
row -= 1;
if row >= 0 {
array[row as usize] += 1;
} else {
done = true;
break;
}
}
}
found
}
fn main() {
queen();
let ts = clock_realtime();
let found = queen();
let dt = clock_realtime() - ts;
println!("found={} time={} ms", found, dt);
}
.LBB6_40:
leaq .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.7(%rip), %rdx
movl $13, %esi
callq *_ZN4core9panicking18panic_bounds_check17hda0827d94e974e71E@GOTPCREL(%rip)
.LBB4_19:
.cfi_def_cfa_offset 64
leaq .L__unnamed_2(%rip), %rdi
movl $13, %esi
movl $13, %edx
callq *_ZN4core9panicking18panic_bounds_check17h09b793daa6d169ffE@GOTPCREL(%rip)
ud2
.LBB4_25:
leaq .L__unnamed_3(%rip), %rdi
movl $13, %edx
callq *_ZN4core9panicking18panic_bounds_check17h09b793daa6d169ffE@GOTPCREL(%rip)
ud2
.LBB4_17:
leaq .L__unnamed_4(%rip), %rdi
movl $13, %edx
callq *_ZN4core9panicking18panic_bounds_check17h09b793daa6d169ffE@GOTPCREL(%rip)
ud2
.LBB4_15:
leaq .L__unnamed_5(%rip), %rdi
movl $13, %edx
callq *_ZN4core9panicking18panic_bounds_check17h09b793daa6d169ffE@GOTPCREL(%rip)
ud2
.LBB4_9:
leaq .L__unnamed_6(%rip), %rdi
movl $13, %edx
callq *_ZN4core9panicking18panic_bounds_check17h09b793daa6d169ffE@GOTPCREL(%rip)
ud2
.file "boundtest.375cfcca86286996-cgu.0"
.section .text._ZN3std2rt10lang_start17h3c102020d822bd07E,"ax",@progbits
.hidden _ZN3std2rt10lang_start17h3c102020d822bd07E
.globl _ZN3std2rt10lang_start17h3c102020d822bd07E
.p2align 4
.type _ZN3std2rt10lang_start17h3c102020d822bd07E,@function
_ZN3std2rt10lang_start17h3c102020d822bd07E:
.cfi_startproc
pushq %rax
.cfi_def_cfa_offset 16
movl %ecx, %r8d
movq %rdx, %rcx
movq %rsi, %rdx
movq %rdi, (%rsp)
leaq .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.0(%rip), %rsi
movq %rsp, %rdi
callq *_ZN3std2rt19lang_start_internal17ha8ef919ae4984948E@GOTPCREL(%rip)
popq %rcx
.cfi_def_cfa_offset 8
retq
.Lfunc_end0:
.size _ZN3std2rt10lang_start17h3c102020d822bd07E, .Lfunc_end0-_ZN3std2rt10lang_start17h3c102020d822bd07E
.cfi_endproc
.section ".text._ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h93d859901d9a3bf1E","ax",@progbits
.p2align 4
.type _ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h93d859901d9a3bf1E,@function
_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h93d859901d9a3bf1E:
.cfi_startproc
pushq %rax
.cfi_def_cfa_offset 16
movq (%rdi), %rdi
callq _ZN3std3sys9backtrace28__rust_begin_short_backtrace17h8132116926a6755eE
xorl %eax, %eax
popq %rcx
.cfi_def_cfa_offset 8
retq
.Lfunc_end1:
.size _ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h93d859901d9a3bf1E, .Lfunc_end1-_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h93d859901d9a3bf1E
.cfi_endproc
.section .text._ZN3std3sys9backtrace28__rust_begin_short_backtrace17h8132116926a6755eE,"ax",@progbits
.p2align 4
.type _ZN3std3sys9backtrace28__rust_begin_short_backtrace17h8132116926a6755eE,@function
_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h8132116926a6755eE:
.cfi_startproc
pushq %rax
.cfi_def_cfa_offset 16
callq *%rdi
#APP
#NO_APP
popq %rax
.cfi_def_cfa_offset 8
retq
.Lfunc_end2:
.size _ZN3std3sys9backtrace28__rust_begin_short_backtrace17h8132116926a6755eE, .Lfunc_end2-_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h8132116926a6755eE
.cfi_endproc
.section ".text._ZN42_$LT$$RF$T$u20$as$u20$core..fmt..Debug$GT$3fmt17haf17d8060b4e03d4E","ax",@progbits
.p2align 4
.type _ZN42_$LT$$RF$T$u20$as$u20$core..fmt..Debug$GT$3fmt17haf17d8060b4e03d4E,@function
_ZN42_$LT$$RF$T$u20$as$u20$core..fmt..Debug$GT$3fmt17haf17d8060b4e03d4E:
.cfi_startproc
movq (%rdi), %rdi
jmpq *_ZN57_$LT$core..time..Duration$u20$as$u20$core..fmt..Debug$GT$3fmt17h7281b74b0c14c846E@GOTPCREL(%rip)
.Lfunc_end3:
.size _ZN42_$LT$$RF$T$u20$as$u20$core..fmt..Debug$GT$3fmt17haf17d8060b4e03d4E, .Lfunc_end3-_ZN42_$LT$$RF$T$u20$as$u20$core..fmt..Debug$GT$3fmt17haf17d8060b4e03d4E
.cfi_endproc
.section ".text._ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17hfb43ae5ef4974b72E","ax",@progbits
.p2align 4
.type _ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17hfb43ae5ef4974b72E,@function
_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17hfb43ae5ef4974b72E:
.cfi_startproc
pushq %rax
.cfi_def_cfa_offset 16
movq (%rdi), %rdi
callq _ZN3std3sys9backtrace28__rust_begin_short_backtrace17h8132116926a6755eE
xorl %eax, %eax
popq %rcx
.cfi_def_cfa_offset 8
retq
.Lfunc_end4:
.size _ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17hfb43ae5ef4974b72E, .Lfunc_end4-_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17hfb43ae5ef4974b72E
.cfi_endproc
.section ".text._ZN63_$LT$std..time..SystemTimeError$u20$as$u20$core..fmt..Debug$GT$3fmt17hdc81834098293439E","ax",@progbits
.p2align 4
.type _ZN63_$LT$std..time..SystemTimeError$u20$as$u20$core..fmt..Debug$GT$3fmt17hdc81834098293439E,@function
_ZN63_$LT$std..time..SystemTimeError$u20$as$u20$core..fmt..Debug$GT$3fmt17hdc81834098293439E:
.cfi_startproc
pushq %rax
.cfi_def_cfa_offset 16
movq %rsi, %rax
movq %rdi, (%rsp)
leaq .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.3(%rip), %rsi
leaq .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.2(%rip), %r8
movq %rsp, %rcx
movl $15, %edx
movq %rax, %rdi
callq *_ZN4core3fmt9Formatter25debug_tuple_field1_finish17h06aa1c014801bdacE@GOTPCREL(%rip)
popq %rcx
.cfi_def_cfa_offset 8
retq
.Lfunc_end5:
.size _ZN63_$LT$std..time..SystemTimeError$u20$as$u20$core..fmt..Debug$GT$3fmt17hdc81834098293439E, .Lfunc_end5-_ZN63_$LT$std..time..SystemTimeError$u20$as$u20$core..fmt..Debug$GT$3fmt17hdc81834098293439E
.cfi_endproc
.section .text._ZN9boundtest4main17ha95ec5995628f7dfE,"ax",@progbits
.p2align 4
.type _ZN9boundtest4main17ha95ec5995628f7dfE,@function
_ZN9boundtest4main17ha95ec5995628f7dfE:
.cfi_startproc
pushq %rbp
.cfi_def_cfa_offset 16
pushq %r14
.cfi_def_cfa_offset 24
pushq %rbx
.cfi_def_cfa_offset 32
subq $112, %rsp
.cfi_def_cfa_offset 144
.cfi_offset %rbx, -32
.cfi_offset %r14, -24
.cfi_offset %rbp, -16
xorps %xmm0, %xmm0
movaps %xmm0, 32(%rsp)
movaps %xmm0, 16(%rsp)
movaps %xmm0, (%rsp)
movl $0, 48(%rsp)
xorl %edx, %edx
movq %rsp, %rax
jmp .LBB6_1
.p2align 4
.LBB6_3:
movl $1, %edx
movl $1, %ecx
movl $0, (%rsp,%rcx,4)
.LBB6_1:
movslq %edx, %rdi
movl %edi, %ecx
jmp .LBB6_2
.p2align 4
.LBB6_10:
incl %esi
movl %esi, (%rsp,%rcx,4)
cmpl $13, %esi
jge .LBB6_14
.LBB6_2:
testl %edx, %edx
je .LBB6_3
cmpl $12, %ecx
ja .LBB6_40
movl (%rsp,%rdi,4), %esi
movq %rax, %r8
movq %rcx, %r10
movq %rcx, %r9
.p2align 4
.LBB6_6:
subq $1, %r9
jb .LBB6_11
movl (%r8), %r11d
movl %r11d, %ebx
subl %esi, %ebx
je .LBB6_10
cmpl %ebx, %r10d
je .LBB6_10
movl %esi, %ebx
subl %r11d, %ebx
addq $4, %r8
cmpl %ebx, %r10d
movq %r9, %r10
jne .LBB6_6
jmp .LBB6_10
.p2align 4
.LBB6_11:
cmpl $12, %edx
jne .LBB6_17
incl 48(%rsp)
movl (%rsp,%rcx,4), %esi
cmpl $13, %esi
jl .LBB6_2
.p2align 4
.LBB6_14:
subq $1, %rcx
jb .LBB6_19
movl (%rsp,%rcx,4), %edx
incl %edx
movl %edx, (%rsp,%rcx,4)
cmpl $12, %edx
jg .LBB6_14
movl %ecx, %edx
jmp .LBB6_1
.LBB6_17:
incl %ecx
movl %ecx, %edx
movl $0, (%rsp,%rcx,4)
jmp .LBB6_1
.LBB6_19:
callq *_ZN3std4time10SystemTime3now17h1481857dbd8e3482E@GOTPCREL(%rip)
movq %rax, 64(%rsp)
movl %edx, 72(%rsp)
xorl %ebx, %ebx
movq %rsp, %rdi
leaq 64(%rsp), %rsi
xorl %edx, %edx
xorl %ecx, %ecx
callq *_ZN3std4time10SystemTime14duration_since17hf6dc8eb19471745bE@GOTPCREL(%rip)
cmpl $1, (%rsp)
je .LBB6_39
movq 8(%rsp), %r14
movl 16(%rsp), %ebp
xorps %xmm0, %xmm0
movaps %xmm0, 32(%rsp)
movaps %xmm0, 16(%rsp)
movaps %xmm0, (%rsp)
movl $0, 48(%rsp)
xorl %eax, %eax
jmp .LBB6_21
.p2align 4
.LBB6_22:
movl $1, %ecx
.LBB6_37:
movl $0, (%rsp,%rcx,4)
incl %eax
.LBB6_21:
testl %eax, %eax
je .LBB6_22
movslq %eax, %rdi
cmpl $12, %eax
ja .LBB6_40
movl %edi, %ecx
movl (%rsp,%rdi,4), %edx
movl %eax, %edi
xorl %esi, %esi
.p2align 4
.LBB6_25:
cmpq %rsi, %rcx
je .LBB6_30
movl (%rsp,%rsi,4), %r8d
movl %r8d, %r9d
subl %edx, %r9d
je .LBB6_29
cmpl %r9d, %edi
je .LBB6_29
incq %rsi
movl %edx, %r9d
subl %r8d, %r9d
leal -1(%rdi), %r8d
cmpl %r9d, %edi
movl %r8d, %edi
jne .LBB6_25
.LBB6_29:
incl %edx
movl %edx, (%rsp,%rcx,4)
cmpl $13, %edx
jl .LBB6_21
.p2align 4
.LBB6_33:
subq $1, %rcx
jb .LBB6_38
movl (%rsp,%rcx,4), %eax
incl %eax
movl %eax, (%rsp,%rcx,4)
cmpl $12, %eax
jg .LBB6_33
movl %ecx, %eax
jmp .LBB6_21
.p2align 4
.LBB6_30:
cmpl $12, %eax
je .LBB6_31
leal 1(%rax), %ecx
jmp .LBB6_37
.LBB6_31:
incl %ebx
incl 48(%rsp)
movl (%rsp,%rcx,4), %edx
cmpl $13, %edx
jl .LBB6_21
jmp .LBB6_33
.LBB6_38:
movl %ebx, 60(%rsp)
callq *_ZN3std4time10SystemTime3now17h1481857dbd8e3482E@GOTPCREL(%rip)
movq %rax, 64(%rsp)
movl %edx, 72(%rsp)
movq %rsp, %rdi
leaq 64(%rsp), %rbx
movq %rbx, %rsi
xorl %edx, %edx
xorl %ecx, %ecx
callq *_ZN3std4time10SystemTime14duration_since17hf6dc8eb19471745bE@GOTPCREL(%rip)
cmpl $1, (%rsp)
je .LBB6_39
movl %ebp, %eax
imulq $1125899907, %rax, %rax
shrq $50, %rax
movq 8(%rsp), %rcx
subq %r14, %rcx
movl 16(%rsp), %edx
imulq $1125899907, %rdx, %rdx
shrq $50, %rdx
subq %rax, %rdx
imulq $1000, %rcx, %rax
addq %rdx, %rax
movq %rax, 64(%rsp)
leaq 60(%rsp), %rax
movq %rax, 80(%rsp)
movq _ZN4core3fmt3num3imp52_$LT$impl$u20$core..fmt..Display$u20$for$u20$i32$GT$3fmt17h863d77ac4b43588eE@GOTPCREL(%rip), %rax
movq %rax, 88(%rsp)
movq %rbx, 96(%rsp)
movq _ZN4core3fmt3num3imp52_$LT$impl$u20$core..fmt..Display$u20$for$u20$i64$GT$3fmt17hde631ae64c57a835E@GOTPCREL(%rip), %rax
movq %rax, 104(%rsp)
leaq .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.11(%rip), %rax
movq %rax, (%rsp)
movq $3, 8(%rsp)
movq $0, 32(%rsp)
leaq 80(%rsp), %rax
movq %rax, 16(%rsp)
movq $2, 24(%rsp)
movq %rsp, %rdi
callq *_ZN3std2io5stdio6_print17h915f3273edec6464E@GOTPCREL(%rip)
addq $112, %rsp
.cfi_def_cfa_offset 32
popq %rbx
.cfi_def_cfa_offset 24
popq %r14
.cfi_def_cfa_offset 16
popq %rbp
.cfi_def_cfa_offset 8
retq
.LBB6_39:
.cfi_def_cfa_offset 144
movq 8(%rsp), %rax
movl 16(%rsp), %ecx
movq %rax, 80(%rsp)
movl %ecx, 88(%rsp)
leaq .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.4(%rip), %rdi
leaq .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.1(%rip), %rcx
leaq .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.6(%rip), %r8
leaq 80(%rsp), %rdx
movl $19, %esi
callq *_ZN4core6result13unwrap_failed17h727108008d9f4c9bE@GOTPCREL(%rip)
.LBB6_40:
leaq .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.7(%rip), %rdx
movl $13, %esi
callq *_ZN4core9panicking18panic_bounds_check17hda0827d94e974e71E@GOTPCREL(%rip)
.Lfunc_end6:
.size _ZN9boundtest4main17ha95ec5995628f7dfE, .Lfunc_end6-_ZN9boundtest4main17ha95ec5995628f7dfE
.cfi_endproc
.section .text.main,"ax",@progbits
.globl main
.p2align 4
.type main,@function
main:
.cfi_startproc
pushq %rax
.cfi_def_cfa_offset 16
movq %rsi, %rcx
movslq %edi, %rdx
leaq _ZN9boundtest4main17ha95ec5995628f7dfE(%rip), %rax
movq %rax, (%rsp)
leaq .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.0(%rip), %rsi
movq %rsp, %rdi
xorl %r8d, %r8d
callq *_ZN3std2rt19lang_start_internal17ha8ef919ae4984948E@GOTPCREL(%rip)
popq %rcx
.cfi_def_cfa_offset 8
retq
.Lfunc_end7:
.size main, .Lfunc_end7-main
.cfi_endproc
.type .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.0,@object
.section .data.rel.ro..Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.0,"aw",@progbits
.p2align 3, 0x0
.Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.0:
.asciz "\000\000\000\000\000\000\000\000\b\000\000\000\000\000\000\000\b\000\000\000\000\000\000"
.quad _ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17hfb43ae5ef4974b72E
.quad _ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h93d859901d9a3bf1E
.quad _ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h93d859901d9a3bf1E
.size .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.0, 48
.type .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.1,@object
.section .data.rel.ro..Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.1,"aw",@progbits
.p2align 3, 0x0
.Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.1:
.asciz "\000\000\000\000\000\000\000\000\020\000\000\000\000\000\000\000\b\000\000\000\000\000\000"
.quad _ZN63_$LT$std..time..SystemTimeError$u20$as$u20$core..fmt..Debug$GT$3fmt17hdc81834098293439E
.size .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.1, 32
.type .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.2,@object
.section .data.rel.ro..Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.2,"aw",@progbits
.p2align 3, 0x0
.Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.2:
.asciz "\000\000\000\000\000\000\000\000\b\000\000\000\000\000\000\000\b\000\000\000\000\000\000"
.quad _ZN42_$LT$$RF$T$u20$as$u20$core..fmt..Debug$GT$3fmt17haf17d8060b4e03d4E
.size .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.2, 32
.type .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.3,@object
.section .rodata..Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.3,"a",@progbits
.Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.3:
.ascii "SystemTimeError"
.size .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.3, 15
.type .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.4,@object
.section .rodata..Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.4,"a",@progbits
.Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.4:
.ascii "Time went backwards"
.size .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.4, 19
.type .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.5,@object
.section .rodata..Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.5,"a",@progbits
.Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.5:
.ascii "src/main.rs"
.size .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.5, 11
.type .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.6,@object
.section .data.rel.ro..Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.6,"aw",@progbits
.p2align 3, 0x0
.Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.6:
.quad .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.5
.asciz "\013\000\000\000\000\000\000\000\t\000\000\000\n\000\000"
.size .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.6, 24
.type .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.7,@object
.section .data.rel.ro..Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.7,"aw",@progbits
.p2align 3, 0x0
.Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.7:
.quad .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.5
.asciz "\013\000\000\000\000\000\000\000\021\000\000\000\022\000\000"
.size .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.7, 24
.type .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.8,@object
.section .rodata..Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.8,"a",@progbits
.Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.8:
.ascii "found="
.size .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.8, 6
.type .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.9,@object
.section .rodata..Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.9,"a",@progbits
.Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.9:
.ascii " time="
.size .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.9, 6
.type .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.10,@object
.section .rodata.cst4,"aM",@progbits,4
.Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.10:
.ascii " ms\n"
.size .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.10, 4
.type .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.11,@object
.section .data.rel.ro..Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.11,"aw",@progbits
.p2align 3, 0x0
.Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.11:
.quad .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.8
.asciz "\006\000\000\000\000\000\000"
.quad .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.9
.asciz "\006\000\000\000\000\000\000"
.quad .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.10
.asciz "\004\000\000\000\000\000\000"
.size .Lanon.577bbe129332a5e2b73bb2ccd2cfb5e2.11, 48
.ident "rustc version 1.88.0 (6b00bc388 2025-06-23)"
.section ".note.GNU-stack","",@progbits
.text
.file "boundtest.6clktnjp-cgu.0"
.section .text._ZN3std2rt10lang_start17h9aebbcf43540bf0fE,"ax",@progbits
.hidden _ZN3std2rt10lang_start17h9aebbcf43540bf0fE
.globl _ZN3std2rt10lang_start17h9aebbcf43540bf0fE
.p2align 4, 0x90
.type _ZN3std2rt10lang_start17h9aebbcf43540bf0fE,@function
_ZN3std2rt10lang_start17h9aebbcf43540bf0fE:
.cfi_startproc
pushq %rax
.cfi_def_cfa_offset 16
movq %rdx, %rcx
movq %rsi, %rdx
movq %rdi, (%rsp)
leaq .L__unnamed_1(%rip), %rsi
movq %rsp, %rdi
callq *_ZN3std2rt19lang_start_internal17h9cf8802361ad86c2E@GOTPCREL(%rip)
popq %rcx
.cfi_def_cfa_offset 8
retq
.Lfunc_end0:
.size _ZN3std2rt10lang_start17h9aebbcf43540bf0fE, .Lfunc_end0-_ZN3std2rt10lang_start17h9aebbcf43540bf0fE
.cfi_endproc
.section ".text._ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17hfcc61cdeabb58ae0E","ax",@progbits
.p2align 4, 0x90
.type _ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17hfcc61cdeabb58ae0E,@function
_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17hfcc61cdeabb58ae0E:
.cfi_startproc
pushq %rax
.cfi_def_cfa_offset 16
callq *(%rdi)
xorl %eax, %eax
popq %rcx
.cfi_def_cfa_offset 8
retq
.Lfunc_end1:
.size _ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17hfcc61cdeabb58ae0E, .Lfunc_end1-_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17hfcc61cdeabb58ae0E
.cfi_endproc
.section ".text._ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h85cd4d27ce61189fE","ax",@progbits
.p2align 4, 0x90
.type _ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h85cd4d27ce61189fE,@function
_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h85cd4d27ce61189fE:
.cfi_startproc
pushq %rax
.cfi_def_cfa_offset 16
callq *(%rdi)
xorl %eax, %eax
popq %rcx
.cfi_def_cfa_offset 8
retq
.Lfunc_end2:
.size _ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h85cd4d27ce61189fE, .Lfunc_end2-_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h85cd4d27ce61189fE
.cfi_endproc
.section .text._ZN4core3ptr13drop_in_place17h8206b4e5dd5bef15E,"ax",@progbits
.p2align 4, 0x90
.type _ZN4core3ptr13drop_in_place17h8206b4e5dd5bef15E,@function
_ZN4core3ptr13drop_in_place17h8206b4e5dd5bef15E:
.cfi_startproc
retq
.Lfunc_end3:
.size _ZN4core3ptr13drop_in_place17h8206b4e5dd5bef15E, .Lfunc_end3-_ZN4core3ptr13drop_in_place17h8206b4e5dd5bef15E
.cfi_endproc
.section .text._ZN9boundtest5queen17h2a40cedb5ec97973E,"ax",@progbits
.p2align 4, 0x90
.type _ZN9boundtest5queen17h2a40cedb5ec97973E,@function
_ZN9boundtest5queen17h2a40cedb5ec97973E:
.cfi_startproc
subq $56, %rsp
.cfi_def_cfa_offset 64
xorps %xmm0, %xmm0
movaps %xmm0, 32(%rsp)
movaps %xmm0, 16(%rsp)
movaps %xmm0, (%rsp)
movl $0, 48(%rsp)
xorl %eax, %eax
xorl %r8d, %r8d
testl %r8d, %r8d
jne .LBB4_4
.p2align 4, 0x90
.LBB4_2:
movl $1, %r8d
movl $1, %esi
.LBB4_3:
movl $0, (%rsp,%rsi,4)
.LBB4_1:
testl %r8d, %r8d
je .LBB4_2
.LBB4_4:
movslq %r8d, %rsi
cmpl $12, %r8d
ja .LBB4_17
movl (%rsp,%rsi,4), %r9d
movl %r8d, %r10d
xorl %edi, %edi
.p2align 4, 0x90
.LBB4_6:
cmpq %rsi, %rdi
jge .LBB4_7
cmpq $13, %rdi
je .LBB4_19
movl (%rsp,%rdi,4), %ecx
movl %ecx, %edx
subl %r9d, %edx
je .LBB4_14
cmpl %edx, %r10d
je .LBB4_14
addq $1, %rdi
movl %r9d, %edx
subl %ecx, %edx
leal -1(%r10), %ecx
cmpl %edx, %r10d
movl %ecx, %r10d
jne .LBB4_6
.LBB4_14:
movq %rsi, %rcx
cmpl $12, %r8d
ja .LBB4_15
addl $1, (%rsp,%rcx,4)
cmpl $13, (%rsp,%rsi,4)
jl .LBB4_1
.p2align 4, 0x90
.LBB4_22:
addl $-1, %r8d
js .LBB4_16
movslq %r8d, %rsi
cmpl $12, %esi
ja .LBB4_25
movl (%rsp,%rsi,4), %ecx
addl $1, %ecx
movl %ecx, (%rsp,%rsi,4)
cmpl $12, %ecx
jg .LBB4_22
jmp .LBB4_1
.p2align 4, 0x90
.LBB4_7:
cmpl $12, %r8d
je .LBB4_20
addl $1, %r8d
movslq %r8d, %rsi
cmpl $13, %esi
jb .LBB4_3
jmp .LBB4_9
.LBB4_20:
addl $1, %eax
movl $12, %ecx
addl $1, (%rsp,%rcx,4)
cmpl $13, (%rsp,%rsi,4)
jl .LBB4_1
jmp .LBB4_22
.LBB4_16:
addq $56, %rsp
.cfi_def_cfa_offset 8
retq
.LBB4_19:
.cfi_def_cfa_offset 64
leaq .L__unnamed_2(%rip), %rdi
movl $13, %esi
movl $13, %edx
callq *_ZN4core9panicking18panic_bounds_check17h09b793daa6d169ffE@GOTPCREL(%rip)
ud2
.LBB4_25:
leaq .L__unnamed_3(%rip), %rdi
movl $13, %edx
callq *_ZN4core9panicking18panic_bounds_check17h09b793daa6d169ffE@GOTPCREL(%rip)
ud2
.LBB4_17:
leaq .L__unnamed_4(%rip), %rdi
movl $13, %edx
callq *_ZN4core9panicking18panic_bounds_check17h09b793daa6d169ffE@GOTPCREL(%rip)
ud2
.LBB4_15:
leaq .L__unnamed_5(%rip), %rdi
movl $13, %edx
callq *_ZN4core9panicking18panic_bounds_check17h09b793daa6d169ffE@GOTPCREL(%rip)
ud2
.LBB4_9:
leaq .L__unnamed_6(%rip), %rdi
movl $13, %edx
callq *_ZN4core9panicking18panic_bounds_check17h09b793daa6d169ffE@GOTPCREL(%rip)
ud2
.Lfunc_end4:
.size _ZN9boundtest5queen17h2a40cedb5ec97973E, .Lfunc_end4-_ZN9boundtest5queen17h2a40cedb5ec97973E
.cfi_endproc
.section .text._ZN9boundtest4main17h261b80ccf5b33e42E,"ax",@progbits
.p2align 4, 0x90
.type _ZN9boundtest4main17h261b80ccf5b33e42E,@function
_ZN9boundtest4main17h261b80ccf5b33e42E:
.cfi_startproc
pushq %rbp
.cfi_def_cfa_offset 16
pushq %r14
.cfi_def_cfa_offset 24
pushq %rbx
.cfi_def_cfa_offset 32
subq $112, %rsp
.cfi_def_cfa_offset 144
.cfi_offset %rbx, -32
.cfi_offset %r14, -24
.cfi_offset %rbp, -16
callq _ZN9boundtest5queen17h2a40cedb5ec97973E
callq *_ZN3std4time10SystemTime3now17hb1b51de2cdb13891E@GOTPCREL(%rip)
movq %rax, 16(%rsp)
movq %rdx, 24(%rsp)
leaq 32(%rsp), %rdi
leaq 16(%rsp), %rsi
xorl %edx, %edx
xorl %ecx, %ecx
callq *_ZN3std4time10SystemTime14duration_since17he01043b61d61d851E@GOTPCREL(%rip)
cmpq $1, 32(%rsp)
je .LBB5_3
movq 40(%rsp), %rbx
movl 48(%rsp), %ebp
callq _ZN9boundtest5queen17h2a40cedb5ec97973E
movl %eax, 12(%rsp)
callq *_ZN3std4time10SystemTime3now17hb1b51de2cdb13891E@GOTPCREL(%rip)
movq %rax, 16(%rsp)
movq %rdx, 24(%rsp)
leaq 32(%rsp), %rdi
leaq 16(%rsp), %r14
movq %r14, %rsi
xorl %edx, %edx
xorl %ecx, %ecx
callq *_ZN3std4time10SystemTime14duration_since17he01043b61d61d851E@GOTPCREL(%rip)
cmpq $1, 32(%rsp)
je .LBB5_3
movl %ebp, %eax
imulq $1125899907, %rax, %rax
shrq $50, %rax
movq 40(%rsp), %rcx
subq %rbx, %rcx
movl 48(%rsp), %edx
imulq $1125899907, %rdx, %rdx
shrq $50, %rdx
subq %rax, %rdx
imulq $1000, %rcx, %rax
addq %rdx, %rax
movq %rax, 16(%rsp)
leaq 12(%rsp), %rax
movq %rax, 80(%rsp)
movq _ZN4core3fmt3num3imp52_$LT$impl$u20$core..fmt..Display$u20$for$u20$i32$GT$3fmt17h765415089818841eE@GOTPCREL(%rip), %rax
movq %rax, 88(%rsp)
movq %r14, 96(%rsp)
movq _ZN4core3fmt3num3imp52_$LT$impl$u20$core..fmt..Display$u20$for$u20$i64$GT$3fmt17h6c2dbda1d476d957E@GOTPCREL(%rip), %rax
movq %rax, 104(%rsp)
leaq .L__unnamed_7(%rip), %rax
movq %rax, 32(%rsp)
movq $3, 40(%rsp)
movq $0, 48(%rsp)
leaq 80(%rsp), %rax
movq %rax, 64(%rsp)
movq $2, 72(%rsp)
leaq 32(%rsp), %rdi
callq *_ZN3std2io5stdio6_print17h7e1d4022dd9ebaeaE@GOTPCREL(%rip)
addq $112, %rsp
.cfi_def_cfa_offset 32
popq %rbx
.cfi_def_cfa_offset 24
popq %r14
.cfi_def_cfa_offset 16
popq %rbp
.cfi_def_cfa_offset 8
retq
.LBB5_3:
.cfi_def_cfa_offset 144
movq 40(%rsp), %rax
movl 48(%rsp), %ecx
movq %rax, 80(%rsp)
movl %ecx, 88(%rsp)
leaq .L__unnamed_8(%rip), %rdi
leaq .L__unnamed_9(%rip), %rcx
leaq .L__unnamed_10(%rip), %r8
leaq 80(%rsp), %rdx
movl $19, %esi
callq *_ZN4core6result13unwrap_failed17h44d0943ece29c280E@GOTPCREL(%rip)
ud2
.Lfunc_end5:
.size _ZN9boundtest4main17h261b80ccf5b33e42E, .Lfunc_end5-_ZN9boundtest4main17h261b80ccf5b33e42E
.cfi_endproc
.section .text.main,"ax",@progbits
.globl main
.p2align 4, 0x90
.type main,@function
main:
.cfi_startproc
pushq %rax
.cfi_def_cfa_offset 16
movq %rsi, %rcx
movslq %edi, %rdx
leaq _ZN9boundtest4main17h261b80ccf5b33e42E(%rip), %rax
movq %rax, (%rsp)
leaq .L__unnamed_1(%rip), %rsi
movq %rsp, %rdi
callq *_ZN3std2rt19lang_start_internal17h9cf8802361ad86c2E@GOTPCREL(%rip)
popq %rcx
.cfi_def_cfa_offset 8
retq
.Lfunc_end6:
.size main, .Lfunc_end6-main
.cfi_endproc
.type .L__unnamed_1,@object
.section .data.rel.ro..L__unnamed_1,"aw",@progbits
.p2align 3
.L__unnamed_1:
.quad _ZN4core3ptr13drop_in_place17h8206b4e5dd5bef15E
.quad 8
.quad 8
.quad _ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17hfcc61cdeabb58ae0E
.quad _ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17hfcc61cdeabb58ae0E
.quad _ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h85cd4d27ce61189fE
.size .L__unnamed_1, 48
.type .L__unnamed_9,@object
.section .data.rel.ro..L__unnamed_9,"aw",@progbits
.p2align 3
.L__unnamed_9:
.quad _ZN4core3ptr13drop_in_place17h8206b4e5dd5bef15E
.quad 16
.quad 8
.quad _ZN63_$LT$std..time..SystemTimeError$u20$as$u20$core..fmt..Debug$GT$3fmt17hc5da7e82d27f47abE
.size .L__unnamed_9, 32
.type .L__unnamed_8,@object
.section .rodata..L__unnamed_8,"a",@progbits
.L__unnamed_8:
.ascii "Time went backwards"
.size .L__unnamed_8, 19
.type .L__unnamed_11,@object
.section .rodata..L__unnamed_11,"a",@progbits
.L__unnamed_11:
.ascii "src/main.rs"
.size .L__unnamed_11, 11
.type .L__unnamed_10,@object
.section .data.rel.ro..L__unnamed_10,"aw",@progbits
.p2align 3
.L__unnamed_10:
.quad .L__unnamed_11
.asciz "\013\000\000\000\000\000\000\000\007\000\000\000\033\000\000"
.size .L__unnamed_10, 24
.type .L__unnamed_4,@object
.section .data.rel.ro..L__unnamed_4,"aw",@progbits
.p2align 3
.L__unnamed_4:
.quad .L__unnamed_11
.asciz "\013\000\000\000\000\000\000\000\021\000\000\000\022\000\000"
.size .L__unnamed_4, 24
.type .L__unnamed_2,@object
.section .data.rel.ro..L__unnamed_2,"aw",@progbits
.p2align 3
.L__unnamed_2:
.quad .L__unnamed_11
.asciz "\013\000\000\000\000\000\000\000\023\000\000\000\025\000\000"
.size .L__unnamed_2, 24
.type .L__unnamed_6,@object
.section .data.rel.ro..L__unnamed_6,"aw",@progbits
.p2align 3
.L__unnamed_6:
.quad .L__unnamed_11
.asciz "\013\000\000\000\000\000\000\000+\000\000\000\021\000\000"
.size .L__unnamed_6, 24
.type .L__unnamed_5,@object
.section .data.rel.ro..L__unnamed_5,"aw",@progbits
.p2align 3
.L__unnamed_5:
.quad .L__unnamed_11
.asciz "\013\000\000\000\000\000\000\000/\000\000\000\t\000\000"
.size .L__unnamed_5, 24
.type .L__unnamed_3,@object
.section .data.rel.ro..L__unnamed_3,"aw",@progbits
.p2align 3
.L__unnamed_3:
.quad .L__unnamed_11
.asciz "\013\000\000\000\000\000\000\0003\000\000\000\021\000\000"
.size .L__unnamed_3, 24
.type .L__unnamed_12,@object
.section .rodata..L__unnamed_12,"a",@progbits
.L__unnamed_12:
.ascii "found="
.size .L__unnamed_12, 6
.type .L__unnamed_13,@object
.section .rodata..L__unnamed_13,"a",@progbits
.L__unnamed_13:
.ascii " time="
.size .L__unnamed_13, 6
.type .L__unnamed_14,@object
.section .rodata.cst4,"aM",@progbits,4
.L__unnamed_14:
.ascii " ms\n"
.size .L__unnamed_14, 4
.type .L__unnamed_7,@object
.section .data.rel.ro..L__unnamed_7,"aw",@progbits
.p2align 3
.L__unnamed_7:
.quad .L__unnamed_12
.asciz "\006\000\000\000\000\000\000"
.quad .L__unnamed_13
.asciz "\006\000\000\000\000\000\000"
.quad .L__unnamed_14
.asciz "\004\000\000\000\000\000\000"
.size .L__unnamed_7, 48
.section ".note.GNU-stack","",@progbits
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