bjoernager/rust
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Remove special case for simd_shuffle arg promotion

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After rust-lang/stdarch#825, these intrinsics are now defined with
`#[rustc_args_required_const(2)]`, so the special-case is no longer
necessary.
This commit is contained in:
Dylan MacKenzie 2020-02-18 21:28:56 -08:00
parent e0e5d82e16
commit d194676667
1 changed files with 0 additions and 12 deletions
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12
src/librustc_mir/transform/promote_consts.rs
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@ -24,7 +24,6 @@ use rustc_span::{Span, DUMMY_SP};
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};
@ -218,17 +217,6 @@ impl<'tcx> Visitor<'tcx> for Collector<'_, 'tcx> {
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 });