M-Labs/compiler-builtins-zynq
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Remove usage of unwrap_or_else

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This commit is contained in:
Alex Crichton 2017-06-23 21:31:54 -07:00
parent a2bdb4b379
commit 2147753559
5 changed files with 28 additions and 25 deletions
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4
src/float/pow.rs
View File

@ -1,3 +1,5 @@
use int::Int;
/// Returns `a` raised to the power `b`
macro_rules! pow {
($a: expr, $b: expr) => ({
@ -8,7 +10,7 @@ macro_rules! pow {
if (b & 1) != 0 {
r *= a;
}
b = b.checked_div(2).unwrap_or_else(|| ::abort());
b = b.aborting_div(2);
if b == 0 {
break;
}

27
src/int/mod.rs
View File

@ -66,8 +66,15 @@ pub trait Int:
fn wrapping_add(self, other: Self) -> Self;
fn wrapping_mul(self, other: Self) -> Self;
fn wrapping_sub(self, other: Self) -> Self;
fn checked_div(self, other: Self) -> Option<Self>;
fn checked_rem(self, other: Self) -> Option<Self>;
fn aborting_div(self, other: Self) -> Self;
fn aborting_rem(self, other: Self) -> Self;
}
fn unwrap<T>(t: Option<T>) -> T {
match t {
Some(t) => t,
None => ::abort(),
}
}
macro_rules! int_impl {
@ -120,12 +127,12 @@ macro_rules! int_impl {
<Self>::wrapping_sub(self, other)
}
fn checked_div(self, other: Self) -> Option<Self> {
<Self>::checked_div(self, other)
fn aborting_div(self, other: Self) -> Self {
unwrap(<Self>::checked_div(self, other))
}
fn checked_rem(self, other: Self) -> Option<Self> {
<Self>::checked_rem(self, other)
fn aborting_rem(self, other: Self) -> Self {
unwrap(<Self>::checked_rem(self, other))
}
}
@ -181,12 +188,12 @@ macro_rules! int_impl {
<Self>::wrapping_sub(self, other)
}
fn checked_div(self, other: Self) -> Option<Self> {
<Self>::checked_div(self, other)
fn aborting_div(self, other: Self) -> Self {
unwrap(<Self>::checked_div(self, other))
}
fn checked_rem(self, other: Self) -> Option<Self> {
<Self>::checked_rem(self, other)
fn aborting_rem(self, other: Self) -> Self {
unwrap(<Self>::checked_rem(self, other))
}
}
}

4
src/int/mul.rs
View File

@ -54,11 +54,11 @@ trait Mulo: Int + ops::Neg<Output = Self> {
return result;
}
if sa == sb {
if abs_a > Self::max_value().checked_div(abs_b).unwrap_or_else(|| ::abort()) {
if abs_a > Self::max_value().aborting_div(abs_b) {
*overflow = 1;
}
} else {
if abs_a > Self::min_value().checked_div(-abs_b).unwrap_or_else(|| ::abort()) {
if abs_a > Self::min_value().aborting_div(-abs_b) {
*overflow = 1;
}
}

6
src/int/sdiv.rs
View File

@ -13,8 +13,7 @@ trait Div: Int {
let b = (other ^ s_b).wrapping_sub(s_b);
let s = s_a ^ s_b;
let r = a.unsigned().checked_div(b.unsigned())
.unwrap_or_else(|| ::abort());
let r = a.unsigned().aborting_div(b.unsigned());
(Self::from_unsigned(r) ^ s) - s
}
}
@ -32,8 +31,7 @@ trait Mod: Int {
let s = self >> (Self::bits() - 1);
let a = (self ^ s).wrapping_sub(s);
let r = a.unsigned().checked_rem(b.unsigned())
.unwrap_or_else(|| ::abort());
let r = a.unsigned().aborting_rem(b.unsigned());
(Self::from_unsigned(r) ^ s) - s
}
}

12
src/int/udiv.rs
View File

@ -11,11 +11,9 @@ macro_rules! udivmod_inner {
// 0 X
if let Some(rem) = rem {
*rem = <$ty>::from(n.low().checked_rem(d.low())
.unwrap_or_else(|| ::abort()));
*rem = <$ty>::from(n.low().aborting_rem(d.low()));
}
return <$ty>::from(n.low().checked_div(d.low())
.unwrap_or_else(|| ::abort()));
return <$ty>::from(n.low().aborting_div(d.low()))
} else {
// 0 X
// ---
@ -46,11 +44,9 @@ macro_rules! udivmod_inner {
// ---
// K 0
if let Some(rem) = rem {
*rem = <$ty>::from_parts(0, n.high().checked_rem(d.high())
.unwrap_or_else(|| ::abort()));
*rem = <$ty>::from_parts(0, n.high().aborting_rem(d.high()));
}
return <$ty>::from(n.high().checked_div(d.high())
.unwrap_or_else(|| ::abort()));
return <$ty>::from(n.high().aborting_div(d.high()))
}
// K K