Auto merge of #147598 - Zalathar:rollup-87wjjvk, r=Zalathar

Rollup of 12 pull requests

Successful merges:

 - #138799 (core: simplify `Extend` for tuples)
 - #146692 (Save x.py's help text for saving output time)
 - #147168 (Don't unconditionally build alloc for `no-std` targets)
 - #147178 ([DebugInfo] Improve formatting of MSVC enum struct variants)
 - #147240 (Add an ACP list item to the library tracking issue template)
 - #147246 (Explain not existed key in BTreeMap::split_off)
 - #147393 (Extract most code from `define_feedable!`)
 - #147495 (Update wasm-component-ld to 0.5.18)
 - #147503 (Fix documentation of Instant::now on mac)
 - #147541 (Change int-to-ptr transmute lowering back to inttoptr)
 - #147549 (Replace `LLVMRustContextCreate` with normal LLVM-C API calls)
 - #147596 (Adjust the Arm targets in CI to reflect latest changes)

r? `@ghost`
`@rustbot` modify labels: rollup

Author: bors

.github/ISSUE_TEMPLATE/library_tracking_issue.md

@@ -51,6 +51,7 @@ If the feature is changed later, please add those PRs here as well.
 
 (Remember to update the `S-tracking-*` label when checking boxes.)
 
+- [ ] ACP: rust-lang/libs-team#...
 - [ ] Implementation: #...
 - [ ] Final comment period (FCP)[^1]
 - [ ] Stabilization PR

Cargo.lock

@@ -495,7 +495,7 @@ dependencies = [
  "iana-time-zone",
  "num-traits",
  "serde",
- "windows-link",
+ "windows-link 0.1.3",
 ]
 
 [[package]]
@@ -6058,9 +6058,9 @@ dependencies = [
 
 [[package]]
 name = "wasi-preview1-component-adapter-provider"
-version = "36.0.1"
+version = "37.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "20689c88791776219f78c2529700d15e6a9bd57a27858c62e9ef8487956b571c"
+checksum = "8d0fcd636ad2b29a7c0490799a23ad61d1c8dedfafdb970447fddd0549502b60"
 
 [[package]]
 name = "wasm-bindgen"
@@ -6122,19 +6122,19 @@ dependencies = [
 
 [[package]]
 name = "wasm-component-ld"
-version = "0.5.17"
+version = "0.5.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1c9208f87cac2332fd80dcf36d54e9163d3446e28301e0c6e424984425738984"
+checksum = "11f565dfcfd9aabb10d865b608a92ce1f93051aeb56f4c89550ed9cd97d8ce0e"
 dependencies = [
  "anyhow",
  "clap",
  "lexopt",
  "libc",
  "tempfile",
  "wasi-preview1-component-adapter-provider",
- "wasmparser 0.239.0",
+ "wasmparser 0.240.0",
  "wat",
- "windows-sys 0.60.2",
+ "windows-sys 0.61.2",
  "winsplit",
  "wit-component",
  "wit-parser",
@@ -6159,24 +6159,24 @@ dependencies = [
 
 [[package]]
 name = "wasm-encoder"
-version = "0.239.0"
+version = "0.240.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5be00faa2b4950c76fe618c409d2c3ea5a3c9422013e079482d78544bb2d184c"
+checksum = "06d642d8c5ecc083aafe9ceb32809276a304547a3a6eeecceb5d8152598bc71f"
 dependencies = [
  "leb128fmt",
- "wasmparser 0.239.0",
+ "wasmparser 0.240.0",
 ]
 
 [[package]]
 name = "wasm-metadata"
-version = "0.239.0"
+version = "0.240.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "20b3ec880a9ac69ccd92fbdbcf46ee833071cf09f82bb005b2327c7ae6025ae2"
+checksum = "ee093e1e1ccffa005b9b778f7a10ccfd58e25a20eccad294a1a93168d076befb"
 dependencies = [
  "anyhow",
  "indexmap",
- "wasm-encoder 0.239.0",
- "wasmparser 0.239.0",
+ "wasm-encoder 0.240.0",
+ "wasmparser 0.240.0",
 ]
 
 [[package]]
@@ -6201,9 +6201,9 @@ dependencies = [
 
 [[package]]
 name = "wasmparser"
-version = "0.239.0"
+version = "0.240.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8c9d90bb93e764f6beabf1d02028c70a2156a6583e63ac4218dd07ef733368b0"
+checksum = "b722dcf61e0ea47440b53ff83ccb5df8efec57a69d150e4f24882e4eba7e24a4"
 dependencies = [
  "bitflags",
  "hashbrown",
@@ -6214,22 +6214,22 @@ dependencies = [
 
 [[package]]
 name = "wast"
-version = "239.0.0"
+version = "240.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9139176fe8a2590e0fb174cdcaf373b224cb93c3dde08e4297c1361d2ba1ea5d"
+checksum = "b0efe1c93db4ac562b9733e3dca19ed7fc878dba29aef22245acf84f13da4a19"
 dependencies = [
  "bumpalo",
  "leb128fmt",
  "memchr",
  "unicode-width 0.2.1",
- "wasm-encoder 0.239.0",
+ "wasm-encoder 0.240.0",
 ]
 
 [[package]]
 name = "wat"
-version = "1.239.0"
+version = "1.240.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3e1c941927d34709f255558166f8901a2005f8ab4a9650432e9281b7cc6f3b75"
+checksum = "4ec9b6eab7ecd4d639d78515e9ea491c9bacf494aa5eda10823bd35992cf8c1e"
 dependencies = [
  "wast",
 ]
@@ -6294,7 +6294,7 @@ dependencies = [
  "windows-collections",
  "windows-core 0.61.2",
  "windows-future",
- "windows-link",
+ "windows-link 0.1.3",
  "windows-numerics",
 ]
 
@@ -6339,7 +6339,7 @@ checksum = "c0fdd3ddb90610c7638aa2b3a3ab2904fb9e5cdbecc643ddb3647212781c4ae3"
 dependencies = [
  "windows-implement 0.60.0",
  "windows-interface 0.59.1",
- "windows-link",
+ "windows-link 0.1.3",
  "windows-result 0.3.4",
  "windows-strings 0.4.2",
 ]
@@ -6351,7 +6351,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fc6a41e98427b19fe4b73c550f060b59fa592d7d686537eebf9385621bfbad8e"
 dependencies = [
  "windows-core 0.61.2",
- "windows-link",
+ "windows-link 0.1.3",
  "windows-threading",
 ]
 
@@ -6405,14 +6405,20 @@ version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5e6ad25900d524eaabdbbb96d20b4311e1e7ae1699af4fb28c17ae66c80d798a"
 
+[[package]]
+name = "windows-link"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f0805222e57f7521d6a62e36fa9163bc891acd422f971defe97d64e70d0a4fe5"
+
 [[package]]
 name = "windows-numerics"
 version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9150af68066c4c5c07ddc0ce30421554771e528bde427614c61038bc2c92c2b1"
 dependencies = [
  "windows-core 0.61.2",
- "windows-link",
+ "windows-link 0.1.3",
 ]
 
 [[package]]
@@ -6430,7 +6436,7 @@ version = "0.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "56f42bd332cc6c8eac5af113fc0c1fd6a8fd2aa08a0119358686e5160d0586c6"
 dependencies = [
- "windows-link",
+ "windows-link 0.1.3",
 ]
 
 [[package]]
@@ -6449,7 +6455,7 @@ version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "56e6c93f3a0c3b36176cb1327a4958a0353d5d166c2a35cb268ace15e91d3b57"
 dependencies = [
- "windows-link",
+ "windows-link 0.1.3",
 ]
 
 [[package]]
@@ -6479,6 +6485,15 @@ dependencies = [
  "windows-targets 0.53.3",
 ]
 
+[[package]]
+name = "windows-sys"
+version = "0.61.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ae137229bcbd6cdf0f7b80a31df61766145077ddf49416a728b02cb3921ff3fc"
+dependencies = [
+ "windows-link 0.2.1",
+]
+
 [[package]]
 name = "windows-targets"
 version = "0.52.6"
@@ -6501,7 +6516,7 @@ version = "0.53.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d5fe6031c4041849d7c496a8ded650796e7b6ecc19df1a431c1a363342e5dc91"
 dependencies = [
- "windows-link",
+ "windows-link 0.1.3",
  "windows_aarch64_gnullvm 0.53.0",
  "windows_aarch64_msvc 0.53.0",
  "windows_i686_gnu 0.53.0",
@@ -6518,7 +6533,7 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b66463ad2e0ea3bbf808b7f1d371311c80e115c0b71d60efc142cafbcfb057a6"
 dependencies = [
- "windows-link",
+ "windows-link 0.1.3",
 ]
 
 [[package]]
@@ -6652,9 +6667,9 @@ dependencies = [
 
 [[package]]
 name = "wit-component"
-version = "0.239.0"
+version = "0.240.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "88a866b19dba2c94d706ec58c92a4c62ab63e482b4c935d2a085ac94caecb136"
+checksum = "7dc5474b078addc5fe8a72736de8da3acfb3ff324c2491133f8b59594afa1a20"
 dependencies = [
  "anyhow",
  "bitflags",
@@ -6663,17 +6678,17 @@ dependencies = [
  "serde",
  "serde_derive",
  "serde_json",
- "wasm-encoder 0.239.0",
+ "wasm-encoder 0.240.0",
  "wasm-metadata",
- "wasmparser 0.239.0",
+ "wasmparser 0.240.0",
  "wit-parser",
 ]
 
 [[package]]
 name = "wit-parser"
-version = "0.239.0"
+version = "0.240.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "55c92c939d667b7bf0c6bf2d1f67196529758f99a2a45a3355cc56964fd5315d"
+checksum = "9875ea3fa272f57cc1fc50f225a7b94021a7878c484b33792bccad0d93223439"
 dependencies = [
  "anyhow",
  "id-arena",
@@ -6684,7 +6699,7 @@ dependencies = [
  "serde_derive",
  "serde_json",
  "unicode-xid",
- "wasmparser 0.239.0",
+ "wasmparser 0.240.0",
 ]
 
 [[package]]

compiler/rustc_codegen_llvm/src/lib.rs

@@ -48,6 +48,8 @@ use rustc_session::config::{OptLevel, OutputFilenames, PrintKind, PrintRequest};
 use rustc_span::Symbol;
 use rustc_target::spec::{RelocModel, TlsModel};
 
+use crate::llvm::ToLlvmBool;
+
 mod abi;
 mod allocator;
 mod asm;
@@ -384,7 +386,8 @@ unsafe impl Sync for ModuleLlvm {}
 impl ModuleLlvm {
     fn new(tcx: TyCtxt<'_>, mod_name: &str) -> Self {
         unsafe {
-            let llcx = llvm::LLVMRustContextCreate(tcx.sess.fewer_names());
+            let llcx = llvm::LLVMContextCreate();
+            llvm::LLVMContextSetDiscardValueNames(llcx, tcx.sess.fewer_names().to_llvm_bool());
             let llmod_raw = context::create_module(tcx, llcx, mod_name) as *const _;
             ModuleLlvm {
                 llmod_raw,
@@ -396,7 +399,8 @@ impl ModuleLlvm {
 
     fn new_metadata(tcx: TyCtxt<'_>, mod_name: &str) -> Self {
         unsafe {
-            let llcx = llvm::LLVMRustContextCreate(tcx.sess.fewer_names());
+            let llcx = llvm::LLVMContextCreate();
+            llvm::LLVMContextSetDiscardValueNames(llcx, tcx.sess.fewer_names().to_llvm_bool());
             let llmod_raw = context::create_module(tcx, llcx, mod_name) as *const _;
             ModuleLlvm {
                 llmod_raw,
@@ -427,7 +431,8 @@ impl ModuleLlvm {
         dcx: DiagCtxtHandle<'_>,
     ) -> Self {
         unsafe {
-            let llcx = llvm::LLVMRustContextCreate(cgcx.fewer_names);
+            let llcx = llvm::LLVMContextCreate();
+            llvm::LLVMContextSetDiscardValueNames(llcx, cgcx.fewer_names.to_llvm_bool());
             let llmod_raw = back::lto::parse_module(llcx, name, buffer, dcx);
             let tm = ModuleLlvm::tm_from_cgcx(cgcx, name.to_str().unwrap(), dcx);
 

compiler/rustc_codegen_llvm/src/llvm/ffi.rs

@@ -905,7 +905,9 @@ pub(crate) type GetSymbolsErrorCallback = unsafe extern "C" fn(*const c_char) ->
 
 unsafe extern "C" {
     // Create and destroy contexts.
+    pub(crate) fn LLVMContextCreate() -> &'static mut Context;
     pub(crate) fn LLVMContextDispose(C: &'static mut Context);
+    pub(crate) fn LLVMContextSetDiscardValueNames(C: &Context, Discard: Bool);
     pub(crate) fn LLVMGetMDKindIDInContext(
         C: &Context,
         Name: *const c_char,
@@ -1925,9 +1927,6 @@ unsafe extern "C" {
     pub(crate) fn LLVMRustInstallErrorHandlers();
     pub(crate) fn LLVMRustDisableSystemDialogsOnCrash();
 
-    // Create and destroy contexts.
-    pub(crate) fn LLVMRustContextCreate(shouldDiscardNames: bool) -> &'static mut Context;
-
     // Operations on all values
     pub(crate) fn LLVMRustGlobalAddMetadata<'a>(
         Val: &'a Value,

compiler/rustc_codegen_ssa/src/mir/rvalue.rs

@@ -1008,14 +1008,14 @@ pub(super) fn transmute_scalar<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>(
     imm = match (from_scalar.primitive(), to_scalar.primitive()) {
         (Int(..) | Float(_), Int(..) | Float(_)) => bx.bitcast(imm, to_backend_ty),
         (Pointer(..), Pointer(..)) => bx.pointercast(imm, to_backend_ty),
-        (Int(..), Pointer(..)) => bx.ptradd(bx.const_null(bx.type_ptr()), imm),
+        (Int(..), Pointer(..)) => bx.inttoptr(imm, to_backend_ty),
         (Pointer(..), Int(..)) => {
             // FIXME: this exposes the provenance, which shouldn't be necessary.
             bx.ptrtoint(imm, to_backend_ty)
         }
         (Float(_), Pointer(..)) => {
             let int_imm = bx.bitcast(imm, bx.cx().type_isize());
-            bx.ptradd(bx.const_null(bx.type_ptr()), int_imm)
+            bx.inttoptr(int_imm, to_backend_ty)
         }
         (Pointer(..), Float(_)) => {
             // FIXME: this exposes the provenance, which shouldn't be necessary.

compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp

@@ -123,12 +123,6 @@ extern "C" void LLVMRustSetLastError(const char *Err) {
   LastError = strdup(Err);
 }
 
-extern "C" LLVMContextRef LLVMRustContextCreate(bool shouldDiscardNames) {
-  auto ctx = new LLVMContext();
-  ctx->setDiscardValueNames(shouldDiscardNames);
-  return wrap(ctx);
-}
-
 extern "C" void LLVMRustSetNormalizedTarget(LLVMModuleRef M,
                                             const char *Target) {
 #if LLVM_VERSION_GE(21, 0)