Move all LLVM externs into the rustc_llvm crate

Cargo.lock

@@ -3509,7 +3509,6 @@ dependencies = [
 name = "rustc_codegen_llvm"
 version = "0.0.0"
 dependencies = [
- "bitflags",
  "gimli 0.31.1",
  "itertools",
  "libc",
@@ -4089,8 +4088,14 @@ dependencies = [
 name = "rustc_llvm"
 version = "0.0.0"
 dependencies = [
+ "bitflags",
  "cc",
  "libc",
+ "rustc_codegen_ssa",
+ "rustc_macros",
+ "rustc_middle",
+ "rustc_session",
+ "rustc_target",
 ]
 
 [[package]]

compiler/rustc_codegen_llvm/Cargo.toml

@@ -8,7 +8,6 @@ test = false
 
 [dependencies]
 # tidy-alphabetical-start
-bitflags = "2.4.1"
 # To avoid duplicate dependencies, this should match the version of gimli used
 # by `rustc_codegen_ssa` via its `thorin-dwp` dependency.
 gimli = "0.31"
@@ -38,7 +37,7 @@ rustc_session = { path = "../rustc_session" }
 rustc_span = { path = "../rustc_span" }
 rustc_symbol_mangling = { path = "../rustc_symbol_mangling" }
 rustc_target = { path = "../rustc_target" }
-serde = { version = "1", features = [ "derive" ]}
+serde = { version = "1", features = ["derive"] }
 serde_json = "1"
 smallvec = { version = "1.8.1", features = ["union", "may_dangle"] }
 tracing = "0.1"

compiler/rustc_codegen_llvm/src/abi.rs

@@ -23,10 +23,9 @@ use smallvec::SmallVec;
 use crate::attributes::{self, llfn_attrs_from_instance};
 use crate::builder::Builder;
 use crate::context::CodegenCx;
-use crate::llvm::{self, Attribute, AttributePlace};
+use crate::llvm::{self, Attribute, AttributePlace, Value};
 use crate::type_::Type;
 use crate::type_of::LayoutLlvmExt;
-use crate::value::Value;
 
 trait ArgAttributesExt {
     fn apply_attrs_to_llfn(&self, idx: AttributePlace, cx: &CodegenCx<'_, '_>, llfn: &Value);
@@ -644,8 +643,12 @@ impl AbiBuilderMethods for Builder<'_, '_, '_> {
     }
 }
 
-impl llvm::CallConv {
-    pub(crate) fn from_conv(conv: CanonAbi, arch: &str) -> Self {
+pub(crate) trait CallConvExt {
+    fn from_conv(conv: CanonAbi, arch: &str) -> llvm::CallConv;
+}
+
+impl CallConvExt for llvm::CallConv {
+    fn from_conv(conv: CanonAbi, arch: &str) -> Self {
         match conv {
             CanonAbi::C | CanonAbi::Rust => llvm::CCallConv,
             CanonAbi::RustCold => llvm::PreserveMost,

compiler/rustc_codegen_llvm/src/asm.rs

@@ -16,9 +16,9 @@ use tracing::debug;
 use crate::builder::Builder;
 use crate::common::Funclet;
 use crate::context::CodegenCx;
+use crate::llvm::Value;
 use crate::type_::Type;
 use crate::type_of::LayoutLlvmExt;
-use crate::value::Value;
 use crate::{attributes, llvm};
 
 impl<'ll, 'tcx> AsmBuilderMethods<'tcx> for Builder<'_, 'll, 'tcx> {

compiler/rustc_codegen_llvm/src/attributes.rs

@@ -12,8 +12,9 @@ use smallvec::SmallVec;
 use crate::context::CodegenCx;
 use crate::errors::SanitizerMemtagRequiresMte;
 use crate::llvm::AttributePlace::Function;
-use crate::llvm::{self, AllocKindFlags, Attribute, AttributeKind, AttributePlace, MemoryEffects};
-use crate::value::Value;
+use crate::llvm::{
+    self, AllocKindFlags, Attribute, AttributeKind, AttributePlace, MemoryEffects, Value,
+};
 use crate::{attributes, llvm_util};
 
 pub(crate) fn apply_to_llfn(llfn: &Value, idx: AttributePlace, attrs: &[&Attribute]) {

compiler/rustc_codegen_llvm/src/back/archive.rs

@@ -11,7 +11,7 @@ use rustc_codegen_ssa::back::archive::{
 use rustc_session::Session;
 
 use crate::llvm::archive_ro::{ArchiveRO, Child};
-use crate::llvm::{self, ArchiveKind, last_error};
+use crate::llvm::{self, last_error, parse_archive_kind};
 
 /// Helper for adding many files to an archive.
 #[must_use = "must call build() to finish building the archive"]
@@ -182,8 +182,7 @@ fn llvm_is_ec_object_file(buf: &[u8]) -> bool {
 impl<'a> LlvmArchiveBuilder<'a> {
     fn build_with_llvm(&mut self, output: &Path) -> io::Result<bool> {
         let kind = &*self.sess.target.archive_format;
-        let kind = kind
-            .parse::<ArchiveKind>()
+        let kind = parse_archive_kind(kind)
             .map_err(|_| kind)
             .unwrap_or_else(|kind| self.sess.dcx().emit_fatal(UnknownArchiveKind { kind }));
 

compiler/rustc_codegen_llvm/src/back/write.rs

@@ -42,7 +42,7 @@ use crate::errors::{
 };
 use crate::llvm::diagnostic::OptimizationDiagnosticKind::*;
 use crate::llvm::{self, DiagnosticInfo};
-use crate::type_::Type;
+use crate::type_::type_ptr_llcx;
 use crate::{LlvmCodegenBackend, ModuleLlvm, base, common, llvm_util};
 
 pub(crate) fn llvm_err<'a>(dcx: DiagCtxtHandle<'_>, err: LlvmError<'a>) -> FatalError {
@@ -1174,7 +1174,7 @@ fn create_msvc_imps(
     // underscores added in front).
     let prefix = if cgcx.target_arch == "x86" { "\x01__imp__" } else { "\x01__imp_" };
 
-    let ptr_ty = Type::ptr_llcx(llcx);
+    let ptr_ty = type_ptr_llcx(llcx);
     let globals = base::iter_globals(llmod)
         .filter(|&val| {
             llvm::get_linkage(val) == llvm::Linkage::ExternalLinkage && !llvm::is_declaration(val)

compiler/rustc_codegen_llvm/src/base.rs

@@ -29,7 +29,7 @@ use rustc_target::spec::SanitizerSet;
 use super::ModuleLlvm;
 use crate::builder::Builder;
 use crate::context::CodegenCx;
-use crate::value::Value;
+use crate::llvm::Value;
 use crate::{attributes, llvm};
 
 pub(crate) struct ValueIter<'ll> {

compiler/rustc_codegen_llvm/src/builder.rs

@@ -33,11 +33,10 @@ use crate::attributes;
 use crate::common::Funclet;
 use crate::context::{CodegenCx, FullCx, GenericCx, SCx};
 use crate::llvm::{
-    self, AtomicOrdering, AtomicRmwBinOp, BasicBlock, False, GEPNoWrapFlags, Metadata, True,
+    self, AtomicOrdering, AtomicRmwBinOp, BasicBlock, False, GEPNoWrapFlags, Metadata, True, Value,
 };
 use crate::type_::Type;
 use crate::type_of::LayoutLlvmExt;
-use crate::value::Value;
 
 #[must_use]
 pub(crate) struct GenericBuilder<'a, 'll, CX: Borrow<SCx<'ll>>> {

compiler/rustc_codegen_llvm/src/builder/autodiff.rs

@@ -15,8 +15,7 @@ use crate::context::SimpleCx;
 use crate::declare::declare_simple_fn;
 use crate::errors::{AutoDiffWithoutEnable, LlvmError};
 use crate::llvm::AttributePlace::Function;
-use crate::llvm::{Metadata, True};
-use crate::value::Value;
+use crate::llvm::{Metadata, True, Value};
 use crate::{CodegenContext, LlvmCodegenBackend, ModuleLlvm, attributes, llvm};
 
 fn get_params(fnc: &Value) -> Vec<&Value> {

compiler/rustc_codegen_llvm/src/callee.rs

@@ -11,7 +11,7 @@ use tracing::debug;
 
 use crate::context::CodegenCx;
 use crate::llvm;
-use crate::value::Value;
+use crate::llvm::Value;
 
 /// Codegens a reference to a fn/method item, monomorphizing and
 /// inlining as it goes.

compiler/rustc_codegen_llvm/src/common.rs

@@ -21,9 +21,8 @@ use tracing::debug;
 use crate::consts::const_alloc_to_llvm;
 pub(crate) use crate::context::CodegenCx;
 use crate::context::{GenericCx, SCx};
-use crate::llvm::{self, BasicBlock, Bool, ConstantInt, False, Metadata, True};
+use crate::llvm::{self, BasicBlock, Bool, ConstantInt, False, Metadata, True, Value};
 use crate::type_::Type;
-use crate::value::Value;
 
 /*
 * A note on nomenclature of linking: "extern", "foreign", and "upcall".

compiler/rustc_codegen_llvm/src/consts.rs

@@ -19,10 +19,9 @@ use tracing::{debug, instrument, trace};
 
 use crate::common::{AsCCharPtr, CodegenCx};
 use crate::errors::SymbolAlreadyDefined;
-use crate::llvm::{self, True};
+use crate::llvm::{self, True, Value};
 use crate::type_::Type;
 use crate::type_of::LayoutLlvmExt;
-use crate::value::Value;
 use crate::{base, debuginfo};
 
 pub(crate) fn const_alloc_to_llvm<'ll>(

compiler/rustc_codegen_llvm/src/context.rs

@@ -32,13 +32,13 @@ use rustc_symbol_mangling::mangle_internal_symbol;
 use rustc_target::spec::{HasTargetSpec, RelocModel, SmallDataThresholdSupport, Target, TlsModel};
 use smallvec::SmallVec;
 
+use crate::abi::CallConvExt as _;
 use crate::back::write::to_llvm_code_model;
 use crate::callee::get_fn;
 use crate::common::AsCCharPtr;
 use crate::debuginfo::metadata::apply_vcall_visibility_metadata;
-use crate::llvm::Metadata;
-use crate::type_::Type;
-use crate::value::Value;
+use crate::llvm::{Metadata, Value};
+use crate::type_::{Type, type_ix_llcx};
 use crate::{attributes, common, coverageinfo, debuginfo, llvm, llvm_util};
 
 /// `TyCtxt` (and related cache datastructures) can't be move between threads.
@@ -669,7 +669,7 @@ impl<'ll> SimpleCx<'ll> {
         llcx: &'ll llvm::Context,
         pointer_size: Size,
     ) -> Self {
-        let isize_ty = llvm::Type::ix_llcx(llcx, pointer_size.bits());
+        let isize_ty = type_ix_llcx(llcx, pointer_size.bits());
         Self(SCx { llmod, llcx, isize_ty }, PhantomData)
     }
 }

compiler/rustc_codegen_llvm/src/coverageinfo/llvm_cov.rs

@@ -2,8 +2,9 @@
 
 use std::ffi::CString;
 
+use rustc_llvm::ffi;
+
 use crate::common::AsCCharPtr;
-use crate::coverageinfo::ffi;
 use crate::llvm;
 
 pub(crate) fn covmap_var_name() -> CString {

compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs

@@ -9,6 +9,7 @@ use std::sync::Arc;
 
 use rustc_abi::Align;
 use rustc_codegen_ssa::traits::{BaseTypeCodegenMethods as _, ConstCodegenMethods};
+use rustc_llvm::ffi;
 use rustc_middle::mir::coverage::{
     BasicCoverageBlock, CovTerm, CoverageIdsInfo, Expression, FunctionCoverageInfo, Mapping,
     MappingKind, Op,
@@ -19,8 +20,8 @@ use rustc_target::spec::HasTargetSpec;
 use tracing::debug;
 
 use crate::common::CodegenCx;
+use crate::coverageinfo::llvm_cov;
 use crate::coverageinfo::mapgen::{GlobalFileTable, VirtualFileMapping, spans};
-use crate::coverageinfo::{ffi, llvm_cov};
 use crate::llvm;
 
 /// Intermediate coverage metadata for a single function, used to help build

compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/spans.rs

@@ -1,8 +1,8 @@
+use rustc_llvm::ffi;
 use rustc_span::source_map::SourceMap;
 use rustc_span::{BytePos, Pos, SourceFile, Span};
 use tracing::debug;
 
-use crate::coverageinfo::ffi;
 use crate::coverageinfo::mapgen::LocalFileId;
 
 /// Line and byte-column coordinates of a source code span within some file.

compiler/rustc_codegen_llvm/src/coverageinfo/mod.rs

@@ -14,7 +14,6 @@ use crate::builder::Builder;
 use crate::common::CodegenCx;
 use crate::llvm;
 
-pub(crate) mod ffi;
 mod llvm_cov;
 mod mapgen;
 

compiler/rustc_codegen_llvm/src/debuginfo/gdb.rs

@@ -12,7 +12,7 @@ use rustc_span::sym;
 use crate::builder::Builder;
 use crate::common::CodegenCx;
 use crate::llvm;
-use crate::value::Value;
+use crate::llvm::Value;
 
 /// Inserts a side-effect free instruction sequence that makes sure that the
 /// .debug_gdb_scripts global is referenced, so it isn't removed by the linker.

compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs

@@ -1,6 +1,5 @@
 use std::borrow::Cow;
-use std::fmt::{self, Write};
-use std::hash::{Hash, Hasher};
+use std::fmt::Write;
 use std::path::{Path, PathBuf};
 use std::sync::Arc;
 use std::{iter, ptr};
@@ -38,31 +37,11 @@ use crate::debuginfo::dwarf_const;
 use crate::debuginfo::metadata::type_map::build_type_with_children;
 use crate::debuginfo::utils::{WidePtrKind, wide_pointer_kind};
 use crate::llvm;
+use crate::llvm::Value;
 use crate::llvm::debuginfo::{
     DIBasicType, DIBuilder, DICompositeType, DIDescriptor, DIFile, DIFlags, DILexicalBlock,
     DIScope, DIType, DebugEmissionKind, DebugNameTableKind,
 };
-use crate::value::Value;
-
-impl PartialEq for llvm::Metadata {
-    fn eq(&self, other: &Self) -> bool {
-        ptr::eq(self, other)
-    }
-}
-
-impl Eq for llvm::Metadata {}
-
-impl Hash for llvm::Metadata {
-    fn hash<H: Hasher>(&self, hasher: &mut H) {
-        (self as *const Self).hash(hasher);
-    }
-}
-
-impl fmt::Debug for llvm::Metadata {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        (self as *const Self).fmt(f)
-    }
-}
 
 pub(super) const UNKNOWN_LINE_NUMBER: c_uint = 0;
 pub(super) const UNKNOWN_COLUMN_NUMBER: c_uint = 0;

compiler/rustc_codegen_llvm/src/debuginfo/mod.rs

@@ -34,11 +34,11 @@ use self::utils::{DIB, create_DIArray, is_node_local_to_unit};
 use crate::builder::Builder;
 use crate::common::{AsCCharPtr, CodegenCx};
 use crate::llvm;
+use crate::llvm::Value;
 use crate::llvm::debuginfo::{
     DIArray, DIBuilderBox, DIFile, DIFlags, DILexicalBlock, DILocation, DISPFlags, DIScope,
     DITemplateTypeParameter, DIType, DIVariable,
 };
-use crate::value::Value;
 
 mod create_scope_map;
 mod dwarf_const;

compiler/rustc_codegen_llvm/src/declare.rs

@@ -26,9 +26,8 @@ use crate::abi::FnAbiLlvmExt;
 use crate::common::AsCCharPtr;
 use crate::context::{CodegenCx, GenericCx, SCx, SimpleCx};
 use crate::llvm::AttributePlace::Function;
-use crate::llvm::Visibility;
+use crate::llvm::{Value, Visibility};
 use crate::type_::Type;
-use crate::value::Value;
 use crate::{attributes, llvm};
 
 /// Declare a function with a SimpleCx.

compiler/rustc_codegen_llvm/src/intrinsic.rs

@@ -21,11 +21,10 @@ use tracing::debug;
 use crate::abi::FnAbiLlvmExt;
 use crate::builder::Builder;
 use crate::context::CodegenCx;
-use crate::llvm::{self, Metadata};
+use crate::llvm::{self, Metadata, Value};
 use crate::type_::Type;
 use crate::type_of::LayoutLlvmExt;
 use crate::va_arg::emit_va_arg;
-use crate::value::Value;
 
 fn call_simple_intrinsic<'ll, 'tcx>(
     bx: &mut Builder<'_, 'll, 'tcx>,

compiler/rustc_codegen_llvm/src/lib.rs

@@ -75,7 +75,6 @@ mod mono_item;
 mod type_;
 mod type_of;
 mod va_arg;
-mod value;
 
 rustc_fluent_macro::fluent_messages! { "../messages.ftl" }
 

compiler/rustc_codegen_llvm/src/llvm/diagnostic.rs

@@ -6,7 +6,7 @@ use rustc_span::InnerSpan;
 pub(crate) use self::Diagnostic::*;
 use self::OptimizationDiagnosticKind::*;
 use super::{DiagnosticInfo, SMDiagnostic};
-use crate::value::Value;
+use crate::llvm::Value;
 
 #[derive(Copy, Clone, Debug)]
 pub(crate) enum OptimizationDiagnosticKind {