Replace in-tree rustc_apfloat with the new version of the crate

Author: wesleywiser

.reuse/dep5

@@ -38,11 +38,6 @@ Files: compiler/*
 Copyright: The Rust Project Developers (see https://thanks.rust-lang.org)
 License: MIT or Apache-2.0
 
-Files: compiler/rustc_apfloat/*
-Copyright: LLVM APFloat authors
-           The Rust Project Developers (see https://thanks.rust-lang.org)
-License: NCSA AND (MIT OR Apache-2.0)
-
 Files: compiler/rustc_codegen_cranelift/src/cranelift_native.rs
 Copyright: The Cranelift Project Developers
            The Rust Project Developers (see https://thanks.rust-lang.org)

Cargo.lock

@@ -3135,7 +3135,9 @@ dependencies = [
 
 [[package]]
 name = "rustc_apfloat"
-version = "0.0.0"
+version = "0.2.0+llvm-462a31f5a5ab"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "465187772033a5ee566f69fe008df03628fce549a0899aae76f0a0c2e34696be"
 dependencies = [
  "bitflags 1.3.2",
  "smallvec",
@@ -4725,9 +4727,9 @@ dependencies = [
 
 [[package]]
 name = "smallvec"
-version = "1.10.0"
+version = "1.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a507befe795404456341dfab10cef66ead4c041f62b8b11bbb92bffe5d0953e0"
+checksum = "62bb4feee49fdd9f707ef802e22365a35de4b7b299de4763d44bfea899442ff9"
 
 [[package]]
 name = "snap"

compiler/rustc_apfloat/Cargo.toml

@@ -8,7 +8,7 @@ edition = "2021"
 [dependencies]
 tracing = "0.1"
 either = "1"
-rustc_apfloat = { path = "../rustc_apfloat" }
+rustc_apfloat = "0.2.0"
 rustc_ast = { path = "../rustc_ast" }
 rustc_attr = { path = "../rustc_attr" }
 rustc_data_structures = { path = "../rustc_data_structures" }

compiler/rustc_apfloat/src/ieee.rs

@@ -13,7 +13,7 @@ gsgdt = "0.1.2"
 field-offset = "0.3.5"
 measureme = "10.0.0"
 polonius-engine = "0.13.0"
-rustc_apfloat = { path = "../rustc_apfloat" }
+rustc_apfloat = "0.2.0"
 rustc_arena = { path = "../rustc_arena" }
 rustc_ast = { path = "../rustc_ast" }
 rustc_attr = { path = "../rustc_attr" }

compiler/rustc_apfloat/src/lib.rs

@@ -10,7 +10,7 @@ rustc_arena = { path = "../rustc_arena" }
 tracing = "0.1"
 either = "1"
 rustc_middle = { path = "../rustc_middle" }
-rustc_apfloat = { path = "../rustc_apfloat" }
+rustc_apfloat = "0.2.0"
 rustc_data_structures = { path = "../rustc_data_structures" }
 rustc_index = { path = "../rustc_index" }
 rustc_errors = { path = "../rustc_errors" }

compiler/rustc_apfloat/src/ppc.rs

@@ -46,6 +46,7 @@ const EXCEPTIONS: &[(&str, &str)] = &[
     ("instant", "BSD-3-Clause"),                             // rustc_driver/tracing-subscriber/parking_lot
     ("mdbook", "MPL-2.0"),                                   // mdbook
     ("openssl", "Apache-2.0"),                               // opt-dist
+    ("rustc_apfloat", "Apache-2.0 WITH LLVM-exception"),     // rustc (license is the same as LLVM uses)
     ("ryu", "Apache-2.0 OR BSL-1.0"),                        // cargo/... (because of serde)
     ("self_cell", "Apache-2.0"),                             // rustc (fluent translations)
     ("snap", "BSD-3-Clause"),                                // rustc
@@ -224,6 +225,7 @@ const PERMITTED_RUSTC_DEPENDENCIES: &[&str] = &[
     "rustc-hash",
     "rustc-rayon",
     "rustc-rayon-core",
+    "rustc_apfloat",
     "rustc_version",
     "rustix",
     "ruzstd", // via object in thorin-dwp

compiler/rustc_apfloat/tests/ieee.rs

@@ -302,10 +302,6 @@ pub fn check(path: &Path, bad: &mut bool) {
                 return;
             }
         }
-        // apfloat shouldn't be changed because of license problems
-        if is_in(file, "compiler", "rustc_apfloat") {
-            return;
-        }
         let mut skip_cr = contains_ignore_directive(can_contain, &contents, "cr");
         let mut skip_undocumented_unsafe =
             contains_ignore_directive(can_contain, &contents, "undocumented-unsafe");

compiler/rustc_apfloat/tests/ppc.rs

@@ -318,14 +318,6 @@ changelog-branch = "master"
 
 [shortcut]
 
-
-[mentions."compiler/rustc_apfloat"]
-message = """
-Changes rustc_apfloat. rustc_apfloat is currently in limbo and you almost \
-certainly don't want to change it (see #55993).
-"""
-cc = ["@eddyb"]
-
 [mentions."compiler/rustc_codegen_cranelift"]
 cc = ["@bjorn3"]
 
@@ -609,7 +601,6 @@ style-team = [
 "/Cargo.lock" =                              ["@Mark-Simulacrum"]
 "/Cargo.toml" =                              ["@Mark-Simulacrum"]
 "/compiler" =                                ["compiler"]
-"/compiler/rustc_apfloat" =                  ["@eddyb"]
 "/compiler/rustc_ast" =                      ["compiler", "parser"]
 "/compiler/rustc_ast_lowering" =             ["compiler", "ast_lowering"]
 "/compiler/rustc_hir_analysis" =             ["compiler", "types"]