Auto merge of #74862 - mark-i-m:mv-compiler, r=petrochenkov

Move almost all compiler crates to compiler/

This PR implements https://github.com/rust-lang/compiler-team/issues/336 and moves all `rustc_*` crates from `src` to the new `compiler` directory.

`librustc_foo` directories are renamed to `rustc_foo`.
`src` directories are introduced inside `rustc_*` directories to mirror the scheme already use for `library` crates.

Cargo.toml

@@ -1,8 +1,7 @@
 [workspace]
 members = [
   "src/bootstrap",
-  "src/rustc",
-  "src/librustc_codegen_llvm",
+  "compiler/rustc",
   "library/std",
   "library/test",
   "src/tools/cargotest",

compiler/rustc/Cargo.toml

@@ -6,14 +6,14 @@ edition = '2018'
 
 [[bin]]
 name = "rustc_binary"
-path = "rustc.rs"
+path = "src/main.rs"
 
 [dependencies]
-rustc_driver = { path = "../librustc_driver" }
+rustc_driver = { path = "../rustc_driver" }
 
 # Make sure rustc_codegen_ssa ends up in the sysroot, because this
 # crate is intended to be used by codegen backends, which may not be in-tree.
-rustc_codegen_ssa = { path = "../librustc_codegen_ssa" }
+rustc_codegen_ssa = { path = "../rustc_codegen_ssa" }
 
 [dependencies.jemalloc-sys]
 version = '0.3.0'

compiler/rustc_apfloat/Cargo.toml

@@ -4,10 +4,6 @@ name = "rustc_apfloat"
 version = "0.0.0"
 edition = "2018"
 
-[lib]
-name = "rustc_apfloat"
-path = "lib.rs"
-
 [dependencies]
 bitflags = "1.2.1"
 smallvec = { version = "1.0", features = ["union", "may_dangle"] }

compiler/rustc_arena/Cargo.toml

@@ -4,10 +4,6 @@ name = "rustc_arena"
 version = "0.0.0"
 edition = "2018"
 
-[lib]
-name = "rustc_arena"
-path = "lib.rs"
-
 [dependencies]
-rustc_data_structures = { path = "../librustc_data_structures" }
+rustc_data_structures = { path = "../rustc_data_structures" }
 smallvec = { version = "1.0", features = ["union", "may_dangle"] }

compiler/rustc_ast/Cargo.toml

@@ -0,0 +1,19 @@
+[package]
+authors = ["The Rust Project Developers"]
+name = "rustc_ast"
+version = "0.0.0"
+edition = "2018"
+
+[lib]
+doctest = false
+
+[dependencies]
+rustc_serialize = { path = "../rustc_serialize" }
+tracing = "0.1"
+rustc_span = { path = "../rustc_span" }
+rustc_data_structures = { path = "../rustc_data_structures" }
+rustc_index = { path = "../rustc_index" }
+rustc_lexer = { path = "../rustc_lexer" }
+rustc_macros = { path = "../rustc_macros" }
+smallvec = { version = "1.0", features = ["union", "may_dangle"] }
+bitflags = "1.2.1"

compiler/rustc_ast_lowering/Cargo.toml

@@ -0,0 +1,22 @@
+[package]
+authors = ["The Rust Project Developers"]
+name = "rustc_ast_lowering"
+version = "0.0.0"
+edition = "2018"
+
+[lib]
+doctest = false
+
+[dependencies]
+rustc_arena = { path = "../rustc_arena" }
+tracing = "0.1"
+rustc_ast_pretty = { path = "../rustc_ast_pretty" }
+rustc_hir = { path = "../rustc_hir" }
+rustc_target = { path = "../rustc_target" }
+rustc_data_structures = { path = "../rustc_data_structures" }
+rustc_index = { path = "../rustc_index" }
+rustc_span = { path = "../rustc_span" }
+rustc_errors = { path = "../rustc_errors" }
+rustc_session = { path = "../rustc_session" }
+rustc_ast = { path = "../rustc_ast" }
+smallvec = { version = "1.0", features = ["union", "may_dangle"] }

compiler/rustc_ast_passes/Cargo.toml

@@ -0,0 +1,18 @@
+[package]
+authors = ["The Rust Project Developers"]
+name = "rustc_ast_passes"
+version = "0.0.0"
+edition = "2018"
+
+[dependencies]
+itertools = "0.8"
+tracing = "0.1"
+rustc_ast_pretty = { path = "../rustc_ast_pretty" }
+rustc_attr = { path = "../rustc_attr" }
+rustc_data_structures = { path = "../rustc_data_structures" }
+rustc_errors = { path = "../rustc_errors" }
+rustc_feature = { path = "../rustc_feature" }
+rustc_parse = { path = "../rustc_parse" }
+rustc_session = { path = "../rustc_session" }
+rustc_span = { path = "../rustc_span" }
+rustc_ast = { path = "../rustc_ast" }

compiler/rustc_ast_pretty/Cargo.toml

@@ -0,0 +1,14 @@
+[package]
+authors = ["The Rust Project Developers"]
+name = "rustc_ast_pretty"
+version = "0.0.0"
+edition = "2018"
+
+[lib]
+doctest = false
+
+[dependencies]
+tracing = "0.1"
+rustc_span = { path = "../rustc_span" }
+rustc_ast = { path = "../rustc_ast" }
+rustc_target = { path = "../rustc_target" }

compiler/rustc_attr/Cargo.toml

@@ -0,0 +1,21 @@
+[package]
+authors = ["The Rust Project Developers"]
+name = "rustc_attr"
+version = "0.0.0"
+edition = "2018"
+
+[lib]
+doctest = false
+
+[dependencies]
+rustc_ast_pretty = { path = "../rustc_ast_pretty" }
+rustc_serialize = { path = "../rustc_serialize" }
+rustc_errors = { path = "../rustc_errors" }
+rustc_span = { path = "../rustc_span" }
+rustc_data_structures = { path = "../rustc_data_structures" }
+rustc_feature = { path = "../rustc_feature" }
+rustc_lexer = { path = "../rustc_lexer" }
+rustc_macros = { path = "../rustc_macros" }
+rustc_session = { path = "../rustc_session" }
+rustc_ast = { path = "../rustc_ast" }
+version_check = "0.9"

compiler/rustc_builtin_macros/Cargo.toml

@@ -0,0 +1,24 @@
+[package]
+authors = ["The Rust Project Developers"]
+name = "rustc_builtin_macros"
+version = "0.0.0"
+edition = "2018"
+
+[lib]
+doctest = false
+
+[dependencies]
+rustc_parse_format = { path = "../rustc_parse_format" }
+tracing = "0.1"
+rustc_ast_pretty = { path = "../rustc_ast_pretty" }
+rustc_attr = { path = "../rustc_attr" }
+rustc_data_structures = { path = "../rustc_data_structures" }
+rustc_errors = { path = "../rustc_errors" }
+rustc_feature = { path = "../rustc_feature" }
+rustc_parse = { path = "../rustc_parse" }
+rustc_target = { path = "../rustc_target" }
+rustc_session = { path = "../rustc_session" }
+smallvec = { version = "1.0", features = ["union", "may_dangle"] }
+rustc_ast = { path = "../rustc_ast" }
+rustc_expand = { path = "../rustc_expand" }
+rustc_span = { path = "../rustc_span" }

compiler/rustc_codegen_llvm/Cargo.toml

@@ -0,0 +1,34 @@
+[package]
+authors = ["The Rust Project Developers"]
+name = "rustc_codegen_llvm"
+version = "0.0.0"
+edition = "2018"
+
+[lib]
+test = false
+doctest = false
+
+[dependencies]
+bitflags = "1.0"
+libc = "0.2"
+measureme = "0.7.1"
+snap = "1"
+tracing = "0.1"
+rustc_middle = { path = "../rustc_middle" }
+rustc-demangle = "0.1"
+rustc_attr = { path = "../rustc_attr" }
+rustc_codegen_ssa = { path = "../rustc_codegen_ssa" }
+rustc_data_structures = { path = "../rustc_data_structures" }
+rustc_errors = { path = "../rustc_errors" }
+rustc_feature = { path = "../rustc_feature" }
+rustc_fs_util = { path = "../rustc_fs_util" }
+rustc_hir = { path = "../rustc_hir" }
+rustc_incremental = { path = "../rustc_incremental" }
+rustc_index = { path = "../rustc_index" }
+rustc_llvm = { path = "../../src/librustc_llvm" }
+rustc_session = { path = "../rustc_session" }
+rustc_serialize = { path = "../rustc_serialize" }
+rustc_target = { path = "../rustc_target" }
+smallvec = { version = "1.0", features = ["union", "may_dangle"] }
+rustc_ast = { path = "../rustc_ast" }
+rustc_span = { path = "../rustc_span" }