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080d5452e1
Implement sym operands for global_asm! Tracking issue: #93333 This PR is pretty much a complete rewrite of `sym` operand support for inline assembly so that the same implementation can be shared by `asm!` and `global_asm!`. The main changes are: - At the AST level, `sym` is represented as a special `InlineAsmSym` AST node containing a path instead of an `Expr`. - At the HIR level, `sym` is split into `SymStatic` and `SymFn` depending on whether the path resolves to a static during AST lowering (defaults to `SynFn` if `get_early_res` fails). - `SymFn` is just an `AnonConst`. It runs through typeck and we just collect the resulting type at the end. An error is emitted if the type is not a `FnDef`. - `SymStatic` directly holds a path and the `DefId` of the `static` that it is pointing to. - The representation at the MIR level is mostly unchanged. There is a minor change to THIR where `SymFn` is a constant instead of an expression. - At the codegen level we need to apply the target's symbol mangling to the result of `tcx.symbol_name()` depending on the target. This is done by calling the LLVM name mangler, which handles all of the details. - On Mach-O, all symbols have a leading underscore. - On x86 Windows, different mangling is used for cdecl, stdcall, fastcall and vectorcall. - No mangling is needed on other platforms. r? `@nagisa` cc `@eddyb` |
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| .. | ||
| deriving | ||
| format_foreign | ||
| asm.rs | ||
| assert.rs | ||
| cfg_accessible.rs | ||
| cfg_eval.rs | ||
| cfg.rs | ||
| cmdline_attrs.rs | ||
| compile_error.rs | ||
| concat_bytes.rs | ||
| concat_idents.rs | ||
| concat.rs | ||
| derive.rs | ||
| edition_panic.rs | ||
| env.rs | ||
| format_foreign.rs | ||
| format.rs | ||
| global_allocator.rs | ||
| lib.rs | ||
| log_syntax.rs | ||
| proc_macro_harness.rs | ||
| source_util.rs | ||
| standard_library_imports.rs | ||
| test_harness.rs | ||
| test.rs | ||
| trace_macros.rs | ||
| util.rs | ||