bors fd127a3a84 Auto merge of #135031 - RalfJung:intrinsics-without-body, r=oli-obk ... rustc_intrinsic: support functions without body We synthesize a HIR body `loop {}` but such bodyless intrinsics. Most of the diff is due to turning `ItemKind::Fn` into a brace (named-field) enum variant, because it carries a `bool`-typed field now. This is to remember whether the function has a body. MIR building panics to avoid ever translating the fake `loop {}` body, and the intrinsic logic uses the lack of a body to implicitly mark that intrinsic as must-be-overridden. I first tried actually having no body rather than generating the fake body, but there's a *lot* of code that assumes that all function items have HIR and MIR, so this didn't work very well. Then I noticed that even `rustc_intrinsic_must_be_overridden` intrinsics have MIR generated (they are filled with an `Unreachable` terminator) so I guess I am not the first to discover this. ;) r? `@oli-obk`		2025-01-04 12:50:38 +00:00
..
auxiliary
always-extern.rs	Move 100 entries from tests/ui into subdirs	2024-05-20 19:55:59 -07:00
always-extern.stderr	Move 100 entries from tests/ui into subdirs	2024-05-20 19:55:59 -07:00
always-gets-overridden.rs	remove support for rustc_safe_intrinsic attribute; use rustc_intrinsic functions instead	2024-11-08 09:16:00 +01:00
bad-intrinsic-monomorphization.rs	Fixup 2 ui tests using changed intrinsics	2024-04-16 12:39:53 +00:00
bad-intrinsic-monomorphization.stderr
const-eval-select-backtrace-std.rs	[AUTO-GENERATED] Migrate ui tests from // to //@ directives	2024-02-16 20:02:50 +00:00
const-eval-select-backtrace-std.run.stderr	Try to write the panic message with a single write_all call	2025-01-01 15:58:29 +01:00
const-eval-select-backtrace.rs	const_eval_select: make it safe but be careful with what we expose on stable for now	2024-03-02 16:09:31 +01:00
const-eval-select-backtrace.run.stderr	Try to write the panic message with a single write_all call	2025-01-01 15:58:29 +01:00
const-eval-select-bad.rs	Pretty print Fn traits in rustc_on_unimplemented	2023-11-02 20:57:05 +00:00
const-eval-select-bad.stderr	core: move intrinsics.rs into intrinsics folder	2024-11-07 17:49:45 +01:00
const-eval-select-stability.rs	Re-do recursive const stability checks	2024-10-25 20:31:40 +02:00
const-eval-select-stability.stderr	Re-do recursive const stability checks	2024-10-25 20:31:40 +02:00
const-eval-select-x86_64.rs	const_eval_select: make it safe but be careful with what we expose on stable for now	2024-03-02 16:09:31 +01:00
const-eval-select.rs	const_eval_select: make it safe but be careful with what we expose on stable for now	2024-03-02 16:09:31 +01:00
incorrect-read_via_copy-defn.rs	Don't even parse an intrinsic unless the feature gate is enabled	2024-04-07 13:30:12 -04:00
incorrect-read_via_copy-defn.stderr	Don't even parse an intrinsic unless the feature gate is enabled	2024-04-07 13:30:12 -04:00
incorrect-transmute.rs	Don't even parse an intrinsic unless the feature gate is enabled	2024-04-07 13:30:12 -04:00
incorrect-transmute.stderr	Don't even parse an intrinsic unless the feature gate is enabled	2024-04-07 13:30:12 -04:00
intrinsic-alignment.rs	add alignment info for test	2024-12-16 14:59:10 -05:00
intrinsic-assume.rs	[AUTO-GENERATED] Migrate ui tests from // to //@ directives	2024-02-16 20:02:50 +00:00
intrinsic-atomics-cc.rs	[AUTO-GENERATED] Migrate ui tests from // to //@ directives	2024-02-16 20:02:50 +00:00
intrinsic-atomics.rs	[AUTO-GENERATED] Migrate ui tests from // to //@ directives	2024-02-16 20:02:50 +00:00
intrinsic-fmuladd.rs	intrinsics.fmuladdf{16,32,64,128}: expose llvm.fmuladd.* semantics	2024-10-11 15:32:56 -06:00
intrinsic-nearby.rs	[AUTO-GENERATED] Migrate ui tests from // to //@ directives	2024-02-16 20:02:50 +00:00
intrinsic-raw_eq-const-bad.rs	most const intrinsics don't need an explicit rustc_const_unstable any more	2024-11-04 23:27:46 +01:00
intrinsic-raw_eq-const-bad.stderr	most const intrinsics don't need an explicit rustc_const_unstable any more	2024-11-04 23:27:46 +01:00
intrinsic-raw_eq-const.rs	most const intrinsics don't need an explicit rustc_const_unstable any more	2024-11-04 23:27:46 +01:00
intrinsic-unreachable.rs	[AUTO-GENERATED] Migrate ui tests from // to //@ directives	2024-02-16 20:02:50 +00:00
intrinsic-volatile.rs	[AUTO-GENERATED] Migrate ui tests from // to //@ directives	2024-02-16 20:02:50 +00:00
intrinsics-integer.rs	remove support for rustc_safe_intrinsic attribute; use rustc_intrinsic functions instead	2024-11-08 09:16:00 +01:00
intrinsics-math.rs	[AUTO-GENERATED] Migrate ui tests from // to //@ directives	2024-02-16 20:02:50 +00:00
issue-28575.rs	Remove revisions for THIR unsafeck	2024-01-05 09:30:27 +00:00
issue-28575.stderr	Remove revisions for THIR unsafeck	2024-01-05 09:30:27 +00:00
issue-84297-reifying-copy.rs	[AUTO-GENERATED] Migrate ui tests from // to //@ directives	2024-02-16 20:02:50 +00:00
non-integer-atomic.rs	[AUTO-GENERATED] Migrate ui tests from // to //@ directives	2024-02-16 20:02:50 +00:00
non-integer-atomic.stderr
not-overridden.rs	rustc_intrinsic: support functions without body; they are implicitly marked as must-be-overridden	2025-01-04 11:41:51 +01:00
not-overridden.stderr	Auto merge of #135031 - RalfJung:intrinsics-without-body, r=oli-obk	2025-01-04 12:50:38 +00:00
panic-uninitialized-zeroed.rs	Stabilize generic NonZero.	2024-04-22 18:48:47 +02:00
reify-intrinsic.rs	Likely unlikely fix	2024-11-17 21:49:10 +01:00
reify-intrinsic.stderr	changes old intrinsic declaration to new declaration	2024-11-24 14:54:36 +05:30
safe-intrinsic-mismatch.rs	Yeet effects feature	2024-11-03 18:59:31 +00:00
safe-intrinsic-mismatch.stderr	Yeet effects feature	2024-11-03 18:59:31 +00:00
unchecked_math_unsafe.rs	Remove revisions for THIR unsafeck	2024-01-05 09:30:27 +00:00
unchecked_math_unsafe.stderr	Stabilize THIR unsafeck	2024-01-05 10:00:59 +00:00
unchecked_math_unstable.rs
unchecked_math_unstable.stderr	use backticks instead of single quotes when reporting "use of unstable library feature"	2024-11-03 13:55:52 -08:00