diff --git a/src/librustc_mir/const_eval/eval_queries.rs b/src/librustc_mir/const_eval/eval_queries.rs index 4d5464f774f..1cec5d30e9b 100644 --- a/src/librustc_mir/const_eval/eval_queries.rs +++ b/src/librustc_mir/const_eval/eval_queries.rs @@ -72,8 +72,8 @@ fn eval_body_using_ecx<'mir, 'tcx>( Ok(ret) } -/// The `InterpCx` is only meant to be used to do field and index projections into constants for -/// `simd_shuffle` and const patterns in match arms. +/// The `InterpCx` is only meant to be used to do field and index projections into promoteds +/// and const patterns in match arms. /// /// The function containing the `match` that is currently being analyzed may have generic bounds /// that inform us about the generic bounds of the constant. E.g., using an associated constant diff --git a/src/librustc_mir/transform/promote_consts.rs b/src/librustc_mir/transform/promote_consts.rs index a5d59860c3d..a11ee57f465 100644 --- a/src/librustc_mir/transform/promote_consts.rs +++ b/src/librustc_mir/transform/promote_consts.rs @@ -24,7 +24,6 @@ use syntax::ast::LitKind; use rustc_index::vec::{Idx, IndexVec}; -use rustc_target::spec::abi::Abi; use std::cell::Cell; use std::{cmp, iter, mem, usize}; @@ -106,11 +105,10 @@ pub enum Candidate { /// Promotion of the `x` in `[x; 32]`. Repeat(Location), - /// Currently applied to function calls where the callee has the unstable - /// `#[rustc_args_required_const]` attribute as well as the SIMD shuffle - /// intrinsic. The intrinsic requires the arguments are indeed constant and - /// the attribute currently provides the semantic requirement that arguments - /// must be constant. + /// Function calls where the callee has the unstable + /// `#[rustc_args_required_const]` attribute. The attribute requires that + /// the arguments be constant, usually because they are encoded as an + /// immediate operand in a platform intrinsic. Argument { bb: BasicBlock, index: usize }, } @@ -218,17 +216,6 @@ fn visit_terminator_kind(&mut self, kind: &TerminatorKind<'tcx>, location: Locat if let TerminatorKind::Call { ref func, .. } = *kind { if let ty::FnDef(def_id, _) = func.ty(self.body, self.tcx).kind { - let fn_sig = self.tcx.fn_sig(def_id); - if let Abi::RustIntrinsic | Abi::PlatformIntrinsic = fn_sig.abi() { - let name = self.tcx.item_name(def_id); - // FIXME(eddyb) use `#[rustc_args_required_const(2)]` for shuffles. - if name.as_str().starts_with("simd_shuffle") { - self.candidates.push(Candidate::Argument { bb: location.block, index: 2 }); - - return; // Don't double count `simd_shuffle` candidates - } - } - if let Some(constant_args) = args_required_const(self.tcx, def_id) { for index in constant_args { self.candidates.push(Candidate::Argument { bb: location.block, index }); @@ -730,8 +717,7 @@ pub fn validate_candidates( .filter(|&candidate| { validator.explicit = candidate.forces_explicit_promotion(); - // FIXME(eddyb) also emit the errors for shuffle indices - // and `#[rustc_args_required_const]` arguments here. + // FIXME(eddyb) also emit the errors for `#[rustc_args_required_const]` arguments here. let is_promotable = validator.validate_candidate(candidate).is_ok(); match candidate { diff --git a/src/test/incremental/issue-61530.rs b/src/test/incremental/issue-61530.rs index 06b2957ac62..c9c600efed8 100644 --- a/src/test/incremental/issue-61530.rs +++ b/src/test/incremental/issue-61530.rs @@ -1,4 +1,4 @@ -#![feature(repr_simd, platform_intrinsics)] +#![feature(repr_simd, platform_intrinsics, rustc_attrs)] // revisions:rpass1 rpass2 @@ -6,6 +6,7 @@ struct I32x2(i32, i32); extern "platform-intrinsic" { + #[rustc_args_required_const(2)] fn simd_shuffle2(x: T, y: T, idx: [u32; 2]) -> U; } diff --git a/src/test/ui/issues/issue-38074.rs b/src/test/ui/issues/issue-38074.rs index 214d6752cef..8f7905b31ec 100644 --- a/src/test/ui/issues/issue-38074.rs +++ b/src/test/ui/issues/issue-38074.rs @@ -1,9 +1,10 @@ // run-pass // ignore-emscripten FIXME(#45351) -#![feature(platform_intrinsics, repr_simd)] +#![feature(platform_intrinsics, repr_simd, rustc_attrs)] extern "platform-intrinsic" { + #[rustc_args_required_const(2)] fn simd_shuffle2(x: T, y: T, idx: [u32; 2]) -> U; } diff --git a/src/test/ui/simd-intrinsic/simd-intrinsic-generic-elements.rs b/src/test/ui/simd-intrinsic/simd-intrinsic-generic-elements.rs index 5929d05f4de..c9c9ab879f2 100644 --- a/src/test/ui/simd-intrinsic/simd-intrinsic-generic-elements.rs +++ b/src/test/ui/simd-intrinsic/simd-intrinsic-generic-elements.rs @@ -42,9 +42,13 @@ struct f32x8(f32, f32, f32, f32, fn simd_insert(x: T, idx: u32, y: E) -> T; fn simd_extract(x: T, idx: u32) -> E; + #[rustc_args_required_const(2)] fn simd_shuffle2(x: T, y: T, idx: [u32; 2]) -> U; + #[rustc_args_required_const(2)] fn simd_shuffle3(x: T, y: T, idx: [u32; 3]) -> U; + #[rustc_args_required_const(2)] fn simd_shuffle4(x: T, y: T, idx: [u32; 4]) -> U; + #[rustc_args_required_const(2)] fn simd_shuffle8(x: T, y: T, idx: [u32; 8]) -> U; } diff --git a/src/test/ui/simd-intrinsic/simd-intrinsic-generic-elements.stderr b/src/test/ui/simd-intrinsic/simd-intrinsic-generic-elements.stderr index 78022c0c8bd..29916f85902 100644 --- a/src/test/ui/simd-intrinsic/simd-intrinsic-generic-elements.stderr +++ b/src/test/ui/simd-intrinsic/simd-intrinsic-generic-elements.stderr @@ -1,89 +1,89 @@ error[E0511]: invalid monomorphization of `simd_insert` intrinsic: expected SIMD input type, found non-SIMD `i32` - --> $DIR/simd-intrinsic-generic-elements.rs:55:9 + --> $DIR/simd-intrinsic-generic-elements.rs:59:9 | LL | simd_insert(0, 0, 0); | ^^^^^^^^^^^^^^^^^^^^ error[E0511]: invalid monomorphization of `simd_insert` intrinsic: expected inserted type `i32` (element of input `i32x4`), found `f64` - --> $DIR/simd-intrinsic-generic-elements.rs:57:9 + --> $DIR/simd-intrinsic-generic-elements.rs:61:9 | LL | simd_insert(x, 0, 1.0); | ^^^^^^^^^^^^^^^^^^^^^^ error[E0511]: invalid monomorphization of `simd_extract` intrinsic: expected return type `i32` (element of input `i32x4`), found `f32` - --> $DIR/simd-intrinsic-generic-elements.rs:59:9 + --> $DIR/simd-intrinsic-generic-elements.rs:63:9 | LL | simd_extract::<_, f32>(x, 0); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0511]: invalid monomorphization of `simd_shuffle2` intrinsic: expected SIMD input type, found non-SIMD `i32` - --> $DIR/simd-intrinsic-generic-elements.rs:62:9 + --> $DIR/simd-intrinsic-generic-elements.rs:66:9 | LL | simd_shuffle2::(0, 0, [0; 2]); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0511]: invalid monomorphization of `simd_shuffle3` intrinsic: expected SIMD input type, found non-SIMD `i32` - --> $DIR/simd-intrinsic-generic-elements.rs:64:9 + --> $DIR/simd-intrinsic-generic-elements.rs:68:9 | LL | simd_shuffle3::(0, 0, [0; 3]); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0511]: invalid monomorphization of `simd_shuffle4` intrinsic: expected SIMD input type, found non-SIMD `i32` - --> $DIR/simd-intrinsic-generic-elements.rs:66:9 + --> $DIR/simd-intrinsic-generic-elements.rs:70:9 | LL | simd_shuffle4::(0, 0, [0; 4]); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0511]: invalid monomorphization of `simd_shuffle8` intrinsic: expected SIMD input type, found non-SIMD `i32` - --> $DIR/simd-intrinsic-generic-elements.rs:68:9 + --> $DIR/simd-intrinsic-generic-elements.rs:72:9 | LL | simd_shuffle8::(0, 0, [0; 8]); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0511]: invalid monomorphization of `simd_shuffle2` intrinsic: expected return element type `i32` (element of input `i32x4`), found `f32x2` with element type `f32` - --> $DIR/simd-intrinsic-generic-elements.rs:71:9 + --> $DIR/simd-intrinsic-generic-elements.rs:75:9 | LL | simd_shuffle2::<_, f32x2>(x, x, [0; 2]); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0511]: invalid monomorphization of `simd_shuffle3` intrinsic: expected return element type `i32` (element of input `i32x4`), found `f32x3` with element type `f32` - --> $DIR/simd-intrinsic-generic-elements.rs:73:9 + --> $DIR/simd-intrinsic-generic-elements.rs:77:9 | LL | simd_shuffle3::<_, f32x3>(x, x, [0; 3]); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0511]: invalid monomorphization of `simd_shuffle4` intrinsic: expected return element type `i32` (element of input `i32x4`), found `f32x4` with element type `f32` - --> $DIR/simd-intrinsic-generic-elements.rs:75:9 + --> $DIR/simd-intrinsic-generic-elements.rs:79:9 | LL | simd_shuffle4::<_, f32x4>(x, x, [0; 4]); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0511]: invalid monomorphization of `simd_shuffle8` intrinsic: expected return element type `i32` (element of input `i32x4`), found `f32x8` with element type `f32` - --> $DIR/simd-intrinsic-generic-elements.rs:77:9 + --> $DIR/simd-intrinsic-generic-elements.rs:81:9 | LL | simd_shuffle8::<_, f32x8>(x, x, [0; 8]); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0511]: invalid monomorphization of `simd_shuffle2` intrinsic: expected return type of length 2, found `i32x8` with length 8 - --> $DIR/simd-intrinsic-generic-elements.rs:80:9 + --> $DIR/simd-intrinsic-generic-elements.rs:84:9 | LL | simd_shuffle2::<_, i32x8>(x, x, [0; 2]); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0511]: invalid monomorphization of `simd_shuffle3` intrinsic: expected return type of length 3, found `i32x4` with length 4 - --> $DIR/simd-intrinsic-generic-elements.rs:82:9 + --> $DIR/simd-intrinsic-generic-elements.rs:86:9 | LL | simd_shuffle3::<_, i32x4>(x, x, [0; 3]); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0511]: invalid monomorphization of `simd_shuffle4` intrinsic: expected return type of length 4, found `i32x3` with length 3 - --> $DIR/simd-intrinsic-generic-elements.rs:84:9 + --> $DIR/simd-intrinsic-generic-elements.rs:88:9 | LL | simd_shuffle4::<_, i32x3>(x, x, [0; 4]); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0511]: invalid monomorphization of `simd_shuffle8` intrinsic: expected return type of length 8, found `i32x2` with length 2 - --> $DIR/simd-intrinsic-generic-elements.rs:86:9 + --> $DIR/simd-intrinsic-generic-elements.rs:90:9 | LL | simd_shuffle8::<_, i32x2>(x, x, [0; 8]); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ diff --git a/src/test/ui/simd-intrinsic/simd-intrinsic-inlining-issue67557-ice.rs b/src/test/ui/simd-intrinsic/simd-intrinsic-inlining-issue67557-ice.rs index 4c09ae25c5f..b03b0ef5089 100644 --- a/src/test/ui/simd-intrinsic/simd-intrinsic-inlining-issue67557-ice.rs +++ b/src/test/ui/simd-intrinsic/simd-intrinsic-inlining-issue67557-ice.rs @@ -3,9 +3,10 @@ // // run-pass // compile-flags: -Zmir-opt-level=3 -#![feature(platform_intrinsics, repr_simd)] +#![feature(platform_intrinsics, repr_simd, rustc_attrs)] extern "platform-intrinsic" { + #[rustc_args_required_const(2)] fn simd_shuffle2(x: T, y: T, idx: [u32; 2]) -> U; } diff --git a/src/test/ui/simd-intrinsic/simd-intrinsic-inlining-issue67557.rs b/src/test/ui/simd-intrinsic/simd-intrinsic-inlining-issue67557.rs index 7a0d955686b..2741dc13336 100644 --- a/src/test/ui/simd-intrinsic/simd-intrinsic-inlining-issue67557.rs +++ b/src/test/ui/simd-intrinsic/simd-intrinsic-inlining-issue67557.rs @@ -3,9 +3,10 @@ // // run-pass // compile-flags: -Zmir-opt-level=3 -#![feature(platform_intrinsics, repr_simd)] +#![feature(platform_intrinsics, repr_simd, rustc_attrs)] extern "platform-intrinsic" { + #[rustc_args_required_const(2)] fn simd_shuffle2(x: T, y: T, idx: [u32; 2]) -> U; } diff --git a/src/test/ui/simd/simd-intrinsic-generic-elements.rs b/src/test/ui/simd/simd-intrinsic-generic-elements.rs index ea3d4b18944..abff59fea78 100644 --- a/src/test/ui/simd/simd-intrinsic-generic-elements.rs +++ b/src/test/ui/simd/simd-intrinsic-generic-elements.rs @@ -1,7 +1,7 @@ // run-pass // ignore-emscripten FIXME(#45351) hits an LLVM assert -#![feature(repr_simd, platform_intrinsics)] +#![feature(repr_simd, platform_intrinsics, rustc_attrs)] #[repr(simd)] #[derive(Copy, Clone, Debug, PartialEq)] @@ -25,9 +25,13 @@ struct i32x8(i32, i32, i32, i32, fn simd_insert(x: T, idx: u32, y: E) -> T; fn simd_extract(x: T, idx: u32) -> E; + #[rustc_args_required_const(2)] fn simd_shuffle2(x: T, y: T, idx: [u32; 2]) -> U; + #[rustc_args_required_const(2)] fn simd_shuffle3(x: T, y: T, idx: [u32; 3]) -> U; + #[rustc_args_required_const(2)] fn simd_shuffle4(x: T, y: T, idx: [u32; 4]) -> U; + #[rustc_args_required_const(2)] fn simd_shuffle8(x: T, y: T, idx: [u32; 8]) -> U; }