Emit align in LLVM

• Emit alignment for pointer arguments to LLVM functions.
• Use larger alignment (32 bytes) for arrays.

hercules_cg/src/cpu.rs

@@ -103,8 +103,9 @@ impl<'a> CPUContext<'a> {
             } else {
                 write!(
                     w,
-                    "{} noalias nofree nonnull noundef %p{}",
+                    "{} noalias nofree nonnull noundef align({}) %p{}",
                     self.get_type(*ty),
+                    get_type_alignment(&self.types, *ty),
                     idx
                 )?;
             }
@@ -509,7 +510,7 @@ impl<'a> CPUContext<'a> {
                         "  {} = load {}, ptr {}\n",
                         self.get_value(id, false),
                         self.get_type(self_ty),
-                        index_ptr_name
+                        index_ptr_name,
                     )?;
                 } else {
                     // If this read doesn't reach a primitive type, just return
@@ -540,7 +541,7 @@ impl<'a> CPUContext<'a> {
                         body,
                         "  store {}, ptr {}\n",
                         self.get_value(data, true),
-                        index_ptr_name
+                        index_ptr_name,
                     )?;
                 } else {
                     // If the data item being written is not a primitive type,