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| author | bjorn3 <17426603+bjorn3@users.noreply.github.com> | 2025-05-23 08:30:58 +0000 |
|---|---|---|
| committer | bjorn3 <17426603+bjorn3@users.noreply.github.com> | 2025-05-26 10:13:03 +0000 |
| commit | 165fb988499b771afb7c2ddb60f05e9e337afb6a (patch) | |
| tree | 5744047c0412d2171c238aa1e34ec68ca2c21d84 /compiler/rustc_codegen_ssa/src | |
| parent | 7122648e3403bbbd471cd2667d5960a109bb9bd7 (diff) | |
| download | rust-165fb988499b771afb7c2ddb60f05e9e337afb6a.tar.gz rust-165fb988499b771afb7c2ddb60f05e9e337afb6a.zip | |
Reduce indentation in codegen_panic_intrinsic
Diffstat (limited to 'compiler/rustc_codegen_ssa/src')
| -rw-r--r-- | compiler/rustc_codegen_ssa/src/mir/block.rs | 96 |
1 files changed, 47 insertions, 49 deletions
diff --git a/compiler/rustc_codegen_ssa/src/mir/block.rs b/compiler/rustc_codegen_ssa/src/mir/block.rs index cb8088e9efb..1baab62ae43 100644 --- a/compiler/rustc_codegen_ssa/src/mir/block.rs +++ b/compiler/rustc_codegen_ssa/src/mir/block.rs @@ -836,58 +836,56 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { // Emit a panic or a no-op for `assert_*` intrinsics. // These are intrinsics that compile to panics so that we can get a message // which mentions the offending type, even from a const context. - if let Some(requirement) = ValidityRequirement::from_intrinsic(intrinsic.name) { - let ty = instance.args.type_at(0); - - let do_panic = !bx - .tcx() - .check_validity_requirement((requirement, bx.typing_env().as_query_input(ty))) - .expect("expect to have layout during codegen"); - - let layout = bx.layout_of(ty); - - Some(if do_panic { - let msg_str = with_no_visible_paths!({ - with_no_trimmed_paths!({ - if layout.is_uninhabited() { - // Use this error even for the other intrinsics as it is more precise. - format!("attempted to instantiate uninhabited type `{ty}`") - } else if requirement == ValidityRequirement::Zero { - format!("attempted to zero-initialize type `{ty}`, which is invalid") - } else { - format!( - "attempted to leave type `{ty}` uninitialized, which is invalid" - ) - } - }) - }); - let msg = bx.const_str(&msg_str); + let Some(requirement) = ValidityRequirement::from_intrinsic(intrinsic.name) else { + return None; + }; - // Obtain the panic entry point. - let (fn_abi, llfn, instance) = - common::build_langcall(bx, Some(source_info.span), LangItem::PanicNounwind); + let ty = instance.args.type_at(0); - // Codegen the actual panic invoke/call. - helper.do_call( - self, - bx, - fn_abi, - llfn, - &[msg.0, msg.1], - target.as_ref().map(|bb| (ReturnDest::Nothing, *bb)), - unwind, - &[], - Some(instance), - mergeable_succ, - ) - } else { - // a NOP - let target = target.unwrap(); - helper.funclet_br(self, bx, target, mergeable_succ) - }) - } else { - None + let is_valid = bx + .tcx() + .check_validity_requirement((requirement, bx.typing_env().as_query_input(ty))) + .expect("expect to have layout during codegen"); + + if is_valid { + // a NOP + let target = target.unwrap(); + return Some(helper.funclet_br(self, bx, target, mergeable_succ)); } + + let layout = bx.layout_of(ty); + + let msg_str = with_no_visible_paths!({ + with_no_trimmed_paths!({ + if layout.is_uninhabited() { + // Use this error even for the other intrinsics as it is more precise. + format!("attempted to instantiate uninhabited type `{ty}`") + } else if requirement == ValidityRequirement::Zero { + format!("attempted to zero-initialize type `{ty}`, which is invalid") + } else { + format!("attempted to leave type `{ty}` uninitialized, which is invalid") + } + }) + }); + let msg = bx.const_str(&msg_str); + + // Obtain the panic entry point. + let (fn_abi, llfn, instance) = + common::build_langcall(bx, Some(source_info.span), LangItem::PanicNounwind); + + // Codegen the actual panic invoke/call. + Some(helper.do_call( + self, + bx, + fn_abi, + llfn, + &[msg.0, msg.1], + target.as_ref().map(|bb| (ReturnDest::Nothing, *bb)), + unwind, + &[], + Some(instance), + mergeable_succ, + )) } fn codegen_call_terminator( |
