rust/compiler
katelyn a. martin 8341f4274d move new c abi abort behavior behind feature gate
### Background

    In #76570, new ABI strings including `C-unwind` were introduced.
    Their behavior is specified in RFC 2945 [1].

    However, it was reported in the #ffi-unwind stream of the Rust
    community Zulip that this had altered the way that `extern "C"`
    functions behaved even when the `c_unwind` feature gate was not
    active. [2]

 ### Overview

    This makes a small patch to
    `rustc_mir_build::build::should_abort_on_panic`, so that the same
    behavior from before is in place when the `c_unwind` gate is not
    active.

    `rustc_middle::ty::layout::fn_can_unwind` is not touched, as the
    visible behavior should not differ before/after #76570. [3]

 ### Footnotes

 [1]: https://github.com/rust-lang/rfcs/blob/master/text/2945-c-unwind-abi.md
 [2]: https://rust-lang.zulipchat.com/#narrow/stream/210922-project-ffi-unwind/topic/Is.20unwinding.20through.20extern.20C.20UB.3F/near/230112325
 [3]: https://github.com/rust-lang/rust/pull/76570/files#diff-b0320c2b8868f325d83c027fc5d71732636e9763551e35895488f30fe057c6e9L2599-R2617
2021-04-29 17:07:56 -04:00
..
rustc Rollup merge of #82642 - sfackler:jemalloc-zone, r=pnkfelix 2021-03-08 13:13:22 +01:00
rustc_apfloat bumped smallvec deps 2021-02-14 18:03:11 +03:00
rustc_arena Rollup merge of #83197 - jyn514:cfg-test-dead-code, r=joshtriplett 2021-03-19 15:03:24 +01:00
rustc_ast Auto merge of #82868 - petrochenkov:bto, r=estebank 2021-03-18 05:27:26 +00:00
rustc_ast_lowering hir: Preserve used syntax in `TyKind::TraitObject` 2021-03-18 03:02:32 +03:00
rustc_ast_passes ast/hir: Rename field-related structures 2021-03-16 11:41:24 +03:00
rustc_ast_pretty ast: Reduce size of `ExprKind` by boxing fields of `ExprKind::Struct` 2021-03-16 11:41:24 +03:00
rustc_attr Auto merge of #71481 - estebank:inherit-stability, r=nikomatsakis 2021-03-05 05:28:07 +00:00
rustc_builtin_macros Rollup merge of #82270 - asquared31415:asm-syntax-directive-errors, r=nagisa 2021-03-18 00:28:06 +01:00
rustc_codegen_cranelift Add simd_neg platform intrinsic 2021-03-19 02:16:21 +08:00
rustc_codegen_llvm correct macro names 2021-03-19 03:47:13 +08:00
rustc_codegen_ssa Rollup merge of #83236 - cjgillot:memmap, r=joshtriplett 2021-03-19 15:03:28 +01:00
rustc_data_structures Rollup merge of #83197 - jyn514:cfg-test-dead-code, r=joshtriplett 2021-03-19 15:03:24 +01:00
rustc_driver Add `rustc_interface::interface::Config::parse_sess_created` 2021-03-15 18:24:58 +08:00
rustc_error_codes Rollup merge of #80527 - jyn514:rustdoc-lints, r=GuillaumeGomez 2021-03-04 20:01:01 +09:00
rustc_errors Remove unnecessary `forward_inner_docs` hack 2021-03-17 09:52:45 -04:00
rustc_expand Extend `proc_macro_back_compat` lint to `actix-web` 2021-03-18 12:09:14 -04:00
rustc_feature Replace `type_alias_impl_trait` by `min_type_alias_impl_trait` with no actual changes in behaviour 2021-03-15 17:32:43 +00:00
rustc_fs_util Optimize away a `fs::metadata` call. 2021-01-06 08:33:15 -08:00
rustc_graphviz remove redundant closures (clippy::redundant_closure) 2021-01-03 13:34:24 +01:00
rustc_hir hir: Preserve used syntax in `TyKind::TraitObject` 2021-03-18 03:02:32 +03:00
rustc_hir_pretty hir: Preserve used syntax in `TyKind::TraitObject` 2021-03-18 03:02:32 +03:00
rustc_incremental ast/hir: Rename field-related structures 2021-03-16 11:41:24 +03:00
rustc_index Remove useless Clone bound in IndexVec. 2021-03-09 18:51:36 +01:00
rustc_infer hir: Preserve used syntax in `TyKind::TraitObject` 2021-03-18 03:02:32 +03:00
rustc_interface Rollup merge of #83144 - hyd-dev:parse-sess-created, r=oli-obk 2021-03-15 16:23:00 +01:00
rustc_lexer Return EOF_CHAR constant instead of magic char. 2021-01-07 13:20:04 +01:00
rustc_lint Rollup merge of #83216 - jyn514:register-tool, r=petrochenkov 2021-03-18 00:28:14 +01:00
rustc_lint_defs Introduce `proc_macro_back_compat` lint, and emit for `time-macros-impl` 2021-03-14 21:31:46 -04:00
rustc_llvm Auto merge of #83044 - kubo39:set-llvm-code-model, r=nikic 2021-03-14 11:46:57 +00:00
rustc_macros Add inlining. 2021-03-11 12:24:43 +01:00
rustc_metadata Rollup merge of #83236 - cjgillot:memmap, r=joshtriplett 2021-03-19 15:03:28 +01:00
rustc_middle Auto merge of #82919 - bstrie:stabchar, r=dtolnay 2021-03-20 06:36:42 +00:00
rustc_mir Rollup merge of #83277 - spastorino:early_otherwise-opt-unsound, r=oli-obk 2021-03-19 23:01:40 +01:00
rustc_mir_build move new c abi abort behavior behind feature gate 2021-04-29 17:07:56 -04:00
rustc_parse Auto merge of #76447 - pickfire:async-pub, r=estebank 2021-03-18 02:32:39 +00:00
rustc_parse_format parse_format: treat r" as a literal 2021-02-06 15:01:07 +00:00
rustc_passes Auto merge of #82951 - sexxi-goose:wr-mir-replace-methods2, r=nikomatsakis 2021-03-19 18:23:44 +00:00
rustc_plugin_impl Remove hir::Item::attrs. 2021-03-09 19:27:50 +01:00
rustc_privacy ast/hir: Rename field-related structures 2021-03-16 11:41:24 +03:00
rustc_query_impl Auto merge of #82936 - oli-obk:valtree, r=RalfJung,lcnr,matthewjasper 2021-03-16 22:42:56 +00:00
rustc_query_system Debug-print result when an unstable fingerprint is detected 2021-03-19 21:47:57 -04:00
rustc_resolve hir: Preserve used syntax in `TyKind::TraitObject` 2021-03-18 03:02:32 +03:00
rustc_save_analysis ast/hir: Rename field-related structures 2021-03-16 11:41:24 +03:00
rustc_serialize Update the bootstrap compiler 2021-02-20 17:19:30 -05:00
rustc_session Rollup merge of #83080 - tmiasko:inline-coverage, r=wesleywiser 2021-03-18 00:28:09 +01:00
rustc_span Auto merge of #83271 - SparrowLii:simd_neg, r=Amanieu 2021-03-20 09:01:35 +00:00
rustc_symbol_mangling rustc_target: add "unwind" payloads to `Abi` 2021-03-09 14:38:29 -05:00
rustc_target riscvgc-unknown-none-elf use lp64d ABI 2021-03-17 10:45:58 -04:00
rustc_trait_selection Fix use of bare trait objects everywhere 2021-03-18 02:18:58 +03:00
rustc_traits Fix use of bare trait objects everywhere 2021-03-18 02:18:58 +03:00
rustc_ty_utils Auto merge of #82159 - BoxyUwU:uwu, r=varkor 2021-02-24 21:54:52 +00:00
rustc_type_ir New pass to deduplicate blocks 2021-02-21 21:51:54 +01:00
rustc_typeck Auto merge of #83271 - SparrowLii:simd_neg, r=Amanieu 2021-03-20 09:01:35 +00:00