Assert alloc size alignment (mmtk#68)

Author: qinsoon

mmtk/Cargo.toml

@@ -10,7 +10,7 @@ edition = "2018"
 [package.metadata.julia]
 # Our CI matches the following line and extract mmtk/julia. If this line is updated, please check ci yaml files and make sure it works.
 julia_repo = "https://github.com/mmtk/julia.git"
-julia_version = "98a66ba3c0925ea21bfe051a191210eeae7df0f2"
+julia_version = "0d8bbd943af2642f04dc6d8c2a74543c4ec8e84f"
 
 [lib]
 crate-type = ["staticlib", "rlib", "dylib"]

mmtk/src/api.rs

@@ -166,6 +166,14 @@ pub extern "C" fn mmtk_alloc(
     offset: usize,
     semantics: AllocationSemantics,
 ) -> Address {
+    debug_assert!(
+        mmtk::util::conversions::raw_is_aligned(
+            size,
+            <JuliaVM as mmtk::vm::VMBinding>::MIN_ALIGNMENT
+        ),
+        "Alloc size {} is not aligned to min alignment",
+        size
+    );
     memory_manager::alloc::<JuliaVM>(unsafe { &mut *mutator }, size, align, offset, semantics)
 }
 
@@ -192,14 +200,7 @@ pub extern "C" fn mmtk_post_alloc(
     bytes: usize,
     semantics: AllocationSemantics,
 ) {
-    match semantics {
-        AllocationSemantics::Los => {
-            memory_manager::post_alloc::<JuliaVM>(unsafe { &mut *mutator }, refer, bytes, semantics)
-        }
-        _ => {
-            memory_manager::post_alloc::<JuliaVM>(unsafe { &mut *mutator }, refer, bytes, semantics)
-        }
-    }
+    memory_manager::post_alloc::<JuliaVM>(unsafe { &mut *mutator }, refer, bytes, semantics)
 }
 
 #[no_mangle]