Emit align in LLVM

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

hercules_cg/src/cpu.rs

@@ -507,11 +507,10 @@ impl<'a> CPUContext<'a> {
                     // load.
                     write!(
                         body,
-                        "  {} = load {}, ptr {}, align {}\n",
+                        "  {} = load {}, ptr {}\n",
                         self.get_value(id, false),
                         self.get_type(self_ty),
                         index_ptr_name,
-                        get_type_alignment(self.types, collect_ty),
                     )?;
                 } else {
                     // If this read doesn't reach a primitive type, just return
@@ -540,10 +539,9 @@ impl<'a> CPUContext<'a> {
                     // perform a single store of the data value.
                     write!(
                         body,
-                        "  store {}, ptr {}, align {}\n",
+                        "  store {}, ptr {}\n",
                         self.get_value(data, true),
                         index_ptr_name,
-                        get_type_alignment(self.types, collect_ty),
                     )?;
                 } else {
                     // If the data item being written is not a primitive type,