bjoernager/rust
bjoernager/rust
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incorporate some review feedback

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This commit is contained in:
Ralf Jung 2022-07-19 19:50:04 -04:00
parent 8affef2ccb
commit 5e840c5c8c
6 changed files with 18 additions and 38 deletions
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15
compiler/rustc_codegen_llvm/src/intrinsic.rs
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@ -10,6 +10,7 @@ use crate::value::Value;
use rustc_codegen_ssa::base::{compare_simd_types, wants_msvc_seh};
use rustc_codegen_ssa::common::span_invalid_monomorphization_error;
use rustc_codegen_ssa::common::{IntPredicate, TypeKind};
use rustc_codegen_ssa::meth;
use rustc_codegen_ssa::mir::operand::OperandRef;
use rustc_codegen_ssa::mir::place::PlaceRef;
use rustc_codegen_ssa::traits::*;
@ -364,17 +365,13 @@ impl<'ll, 'tcx> IntrinsicCallMethods<'tcx> for Builder<'_, 'll, 'tcx> {
}
sym::vtable_size | sym::vtable_align => {
let ptr = args[0].immediate();
let layout = self.layout_of(self.tcx.types.usize);
let type_ = self.backend_type(layout);
let offset = match name {
sym::vtable_size => 1,
sym::vtable_align => 2,
let vtable = args[0].immediate();
let idx = match name {
sym::vtable_size => ty::COMMON_VTABLE_ENTRIES_SIZE,
sym::vtable_align => ty::COMMON_VTABLE_ENTRIES_ALIGN,
_ => bug!(),
};
let offset = self.const_int(type_, offset);
let vtable_field_ptr = self.inbounds_gep(type_, ptr, &[offset]);
self.load(type_, vtable_field_ptr, layout.align.abi)
meth::VirtualIndex::from_index(idx).get_usize(self, vtable)
}
_ if name.as_str().starts_with("simd_") => {