From 2795f0ba3355b2e82f322fef1efa16a95803da94 Mon Sep 17 00:00:00 2001
From: Jarred Sumner <709451+Jarred-Sumner@users.noreply.github.com>
Date: Tue, 25 Apr 2023 22:12:05 -0700
Subject: Possible fix for #2732

---
 src/memory_allocator.zig | 4 +++-
 src/mimalloc_arena.zig   | 3 ++-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/memory_allocator.zig b/src/memory_allocator.zig
index fb5fd06f2..3acbebc05 100644
--- a/src/memory_allocator.zig
+++ b/src/memory_allocator.zig
@@ -56,7 +56,9 @@ const CAllocator = struct {
     const malloc_size = c.malloc_size;
     pub const supports_posix_memalign = true;
 
-    fn alignedAlloc(len: usize, alignment: usize) ?[*]u8 {
+    fn alignedAlloc(len: usize, log2_align: usize) ?[*]u8 {
+        const alignment = @as(usize, 1) << @intCast(Allocator.Log2Align, log2_align);
+
         if (comptime FeatureFlags.log_allocations) std.debug.print("Malloc: {d}\n", .{len});
 
         var ptr: ?*anyopaque = if (mimalloc.canUseAlignedAlloc(len, alignment))
diff --git a/src/mimalloc_arena.zig b/src/mimalloc_arena.zig
index 1dcf6d5b1..793a0062a 100644
--- a/src/mimalloc_arena.zig
+++ b/src/mimalloc_arena.zig
@@ -201,7 +201,8 @@ pub const Arena = struct {
     }
     pub const supports_posix_memalign = true;
 
-    fn alignedAlloc(heap: *mimalloc.Heap, len: usize, alignment: usize) ?[*]u8 {
+    fn alignedAlloc(heap: *mimalloc.Heap, len: usize, log2_align: usize) ?[*]u8 {
+        const alignment = @as(usize, 1) << @intCast(Allocator.Log2Align, log2_align);
         if (comptime FeatureFlags.log_allocations) std.debug.print("Malloc: {d}\n", .{len});
 
         var ptr: ?*anyopaque = if (mimalloc.canUseAlignedAlloc(len, alignment))
-- 
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