pyatomic_msc store atomic

tom-pytel · tom-pytel · commit 11b616c1fb49 · 2025-08-31T16:52:20.000-04:00
diff --git a/Include/cpython/pyatomic_msc.h b/Include/cpython/pyatomic_msc.h
@@ -1174,8 +1174,8 @@ _Py_atomic_memcpy_ptr_store_relaxed(void *dest, void *src, size_t n)
         void **end = dest_ + n / sizeof(void *);
 
         for (; dest_ != end; dest_++, src_++) {
-            *dest_ = *src_;
-            // *(void * volatile *)dest_ = *src_;
+            // *dest_ = *src_;
+            *(void * volatile *)dest_ = *src_;
         }
     }
 
@@ -1197,8 +1197,8 @@ _Py_atomic_memmove_ptr_store_relaxed(void *dest, void *src, size_t n)
         void **end = dest_ + n / sizeof(void *);
 
         for (; dest_ != end; dest_++, src_++) {
-            *dest_ = *src_;
-            // *(void * volatile *)dest_ = *src_;
+            // *dest_ = *src_;
+            *(void * volatile *)dest_ = *src_;
         }
     }
     else if (dest > src) {
@@ -1208,8 +1208,8 @@ _Py_atomic_memmove_ptr_store_relaxed(void *dest, void *src, size_t n)
         void **end = (void **)dest - 1;
 
         for (; dest_ != end; dest_--, src_--) {
-            *dest_ = *src_;
-            // *(void * volatile *)dest_ = *src_;
+            // *dest_ = *src_;
+            *(void * volatile *)dest_ = *src_;
         }
     }
 

Original file line number	Diff line number	Diff line change
`@@ -1174,8 +1174,8 @@ _Py_atomic_memcpy_ptr_store_relaxed(void dest, void src, size_t n)`
`1174`	`1174`	`void *end = dest_ + n / sizeof(void );`
`1175`	`1175`
`1176`	`1176`	`for (; dest_ != end; dest_++, src_++) {`
`1177`		`- dest_ = src_;`
`1178`		`- // (void volatile )dest_ = src_;`
	`1177`	`+ // dest_ = src_;`
	`1178`	`+ (void volatile )dest_ = src_;`
`1179`	`1179`	`}`
`1180`	`1180`	`}`
`1181`	`1181`
`@@ -1197,8 +1197,8 @@ _Py_atomic_memmove_ptr_store_relaxed(void dest, void src, size_t n)`
`1197`	`1197`	`void *end = dest_ + n / sizeof(void );`
`1198`	`1198`
`1199`	`1199`	`for (; dest_ != end; dest_++, src_++) {`
`1200`		`- dest_ = src_;`
`1201`		`- // (void volatile )dest_ = src_;`
	`1200`	`+ // dest_ = src_;`
	`1201`	`+ (void volatile )dest_ = src_;`
`1202`	`1202`	`}`
`1203`	`1203`	`}`
`1204`	`1204`	`else if (dest > src) {`
`@@ -1208,8 +1208,8 @@ _Py_atomic_memmove_ptr_store_relaxed(void dest, void src, size_t n)`
`1208`	`1208`	`void end = (void )dest - 1;`
`1209`	`1209`
`1210`	`1210`	`for (; dest_ != end; dest_--, src_--) {`
`1211`		`- dest_ = src_;`
`1212`		`- // (void volatile )dest_ = src_;`
	`1211`	`+ // dest_ = src_;`
	`1212`	`+ (void volatile )dest_ = src_;`
`1213`	`1213`	`}`
`1214`	`1214`	`}`
`1215`	`1215`