de-rust phase-0: archive Rust LLVM backend to archive/rust-llvm-backend (RESTORE documented); defaults unaffected

archive/rust-llvm-backend/llvm/compiler/codegen/instructions/mod.rs

@@ -0,0 +1,39 @@
+mod arith;
+mod arith_ops;
+mod arrays;
+mod blocks;
+mod boxcall;
+pub mod builder_cursor;
+mod call;
+mod consts;
+pub mod ctx;
+mod externcall;
+pub mod flow;
+mod loopform;
+mod maps;
+mod mem;
+mod newbox;
+mod resolver;
+pub mod string_ops;
+mod strings;
+mod terminators; // scaffolding: re-exports flow terminators
+mod select;      // scaffolding: prepare for cond/short-circuit helpers
+
+pub(super) use arith::lower_compare;
+pub(super) use arith_ops::{lower_binop, lower_unary};
+pub(super) use blocks::{create_basic_blocks, precreate_phis};
+pub(super) use boxcall::{lower_boxcall, lower_boxcall_boxed, lower_boxcall_via_ctx};
+pub(super) use call::lower_call;
+pub(super) use consts::lower_const;
+pub(super) use externcall::lower_externcall;
+pub(super) use flow::{emit_branch, emit_jump, emit_return};
+// Future: swap callers to use `terminators::*` instead of `flow::*` directly
+pub(super) use terminators::{emit_branch as term_emit_branch, emit_jump as term_emit_jump, emit_return as term_emit_return};
+pub(super) use select::normalize_branch_condition;
+pub(super) use loopform::dev_check_dispatch_only_phi;
+pub(super) use loopform::normalize_header_phis_for_latch;
+pub(super) use loopform::{lower_while_loopform, LoopFormContext};
+pub(super) use mem::lower_copy;
+pub(super) use mem::{lower_load, lower_store};
+pub(super) use newbox::lower_newbox;
+pub(super) use resolver::Resolver;