From 501b43a75b09d0ac6e25936036316612feb2d40b Mon Sep 17 00:00:00 2001
From: Ali Cheraghi <alichraghi@proton.me>
Date: Sun, 5 Jul 2026 10:02:39 +0330
Subject: [PATCH] spirv: add alignment info to store ops

---
 src/codegen/spirv/CodeGen.zig | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/codegen/spirv/CodeGen.zig b/src/codegen/spirv/CodeGen.zig
index 329ea763adde6ae390cfa0c6626aa740b9593338..de830baf765ea5fc1a86ce1c69c73af863bc78f3 100644
--- a/src/codegen/spirv/CodeGen.zig
+++ b/src/codegen/spirv/CodeGen.zig
@@ -4222,6 +4222,8 @@ fn load(cg: *CodeGen, value_ty: Type, ptr_id: Id, options: MemoryOptions) !Id {
 }
 
 fn store(cg: *CodeGen, value_ty: Type, ptr_id: Id, value_id: Id, options: MemoryOptions) !void {
+    const zcu = cg.zcu;
+    const alignment: u32 = @intCast(value_ty.abiAlignment(zcu).toByteUnits().?);
     const bare_value_id = try cg.convertToIndirect(value_ty, value_id);
     const bare_ty_id = try cg.resolveType(value_ty, .indirect);
     const store_ty_id = if (cg.needsLayout(options.ptr_address_space, value_ty))
@@ -4232,7 +4234,10 @@ fn store(cg: *CodeGen, value_ty: Type, ptr_id: Id, value_id: Id, options: Memory
     try cg.body.emit(cg.gpa, .OpStore, .{
         .pointer = ptr_id,
         .object = object_id,
-        .memory_access = .{ .@"volatile" = options.is_volatile },
+        .memory_access = .{
+            .@"volatile" = options.is_volatile,
+            .aligned = .{ .literal_integer = alignment },
+        },
     });
 }
 
-- 
2.54.0