From a309baf011b8de44cfff4e45f93cd8fc2d73dece Mon Sep 17 00:00:00 2001
From: Sean Cross <sean@xobs.io>
Date: Fri, 1 Apr 2022 17:05:26 +0800
Subject: [PATCH] atomic: remove AtomicI64/AtomicU64 on riscv32

The riscv32 platform does not have AtomicI64 or AtomicU64, so remove
those implementations on that platform.

This fixes #531.

Signed-off-by: Sean Cross <sean@xobs.io>
---
 src/features/atomic.rs | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/features/atomic.rs b/src/features/atomic.rs
index c1c4d24b..04b3bab0 100644
--- a/src/features/atomic.rs
+++ b/src/features/atomic.rs
@@ -1,8 +1,10 @@
 use crate::{de::Decode, enc::Encode};
 use core::sync::atomic::{
-    AtomicBool, AtomicI16, AtomicI32, AtomicI64, AtomicI8, AtomicIsize, AtomicU16, AtomicU32,
-    AtomicU64, AtomicU8, AtomicUsize, Ordering,
+    AtomicBool, AtomicI16, AtomicI32, AtomicI8, AtomicIsize, AtomicU16, AtomicU32, AtomicU8,
+    AtomicUsize, Ordering,
 };
+#[cfg(not(target_arch = "riscv32"))]
+use core::sync::atomic::{AtomicI64, AtomicU64};
 
 impl Encode for AtomicBool {
     fn encode<E: crate::enc::Encoder>(
@@ -64,6 +66,7 @@ impl Decode for AtomicU32 {
     }
 }
 
+#[cfg(not(target_arch = "riscv32"))]
 impl Encode for AtomicU64 {
     fn encode<E: crate::enc::Encoder>(
         &self,
@@ -73,6 +76,7 @@ impl Encode for AtomicU64 {
     }
 }
 
+#[cfg(not(target_arch = "riscv32"))]
 impl Decode for AtomicU64 {
     fn decode<D: crate::de::Decoder>(decoder: &mut D) -> Result<Self, crate::error::DecodeError> {
         Ok(AtomicU64::new(Decode::decode(decoder)?))
@@ -139,6 +143,7 @@ impl Decode for AtomicI32 {
     }
 }
 
+#[cfg(not(target_arch = "riscv32"))]
 impl Encode for AtomicI64 {
     fn encode<E: crate::enc::Encoder>(
         &self,
@@ -148,6 +153,7 @@ impl Encode for AtomicI64 {
     }
 }
 
+#[cfg(not(target_arch = "riscv32"))]
 impl Decode for AtomicI64 {
     fn decode<D: crate::de::Decoder>(decoder: &mut D) -> Result<Self, crate::error::DecodeError> {
         Ok(AtomicI64::new(Decode::decode(decoder)?))