bjoernager/rust
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Merge commit 'c84d1871dc' into sync_cg_clif-2023-11-10

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bjorn3 2023-11-10 11:30:51 +00:00
commit d186b49460
13 changed files with 961 additions and 67 deletions
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56
compiler/rustc_codegen_cranelift/src/value_and_place.rs
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@ -243,6 +243,34 @@ impl<'tcx> CValue<'tcx> {
let (lane_count, lane_ty) = layout.ty.simd_size_and_type(fx.tcx);
let lane_layout = fx.layout_of(lane_ty);
assert!(lane_idx < lane_count);
match self.0 {
CValueInner::ByVal(_) | CValueInner::ByValPair(_, _) => unreachable!(),
CValueInner::ByRef(ptr, None) => {
let field_offset = lane_layout.size * lane_idx;
let field_ptr = ptr.offset_i64(fx, i64::try_from(field_offset.bytes()).unwrap());
CValue::by_ref(field_ptr, lane_layout)
}
CValueInner::ByRef(_, Some(_)) => unreachable!(),
}
}
/// Like [`CValue::value_field`] except using the passed type as lane type instead of the one
/// specified by the vector type.
pub(crate) fn value_typed_lane(
self,
fx: &mut FunctionCx<'_, '_, 'tcx>,
lane_ty: Ty<'tcx>,
lane_idx: u64,
) -> CValue<'tcx> {
let layout = self.1;
assert!(layout.ty.is_simd());
let (orig_lane_count, orig_lane_ty) = layout.ty.simd_size_and_type(fx.tcx);
let lane_layout = fx.layout_of(lane_ty);
assert!(
(lane_idx + 1) * lane_layout.size <= orig_lane_count * fx.layout_of(orig_lane_ty).size
);
match self.0 {
CValueInner::ByVal(_) | CValueInner::ByValPair(_, _) => unreachable!(),
CValueInner::ByRef(ptr, None) => {
@ -734,6 +762,34 @@ impl<'tcx> CPlace<'tcx> {
}
}
/// Like [`CPlace::place_field`] except using the passed type as lane type instead of the one
/// specified by the vector type.
pub(crate) fn place_typed_lane(
self,
fx: &mut FunctionCx<'_, '_, 'tcx>,
lane_ty: Ty<'tcx>,
lane_idx: u64,
) -> CPlace<'tcx> {
let layout = self.layout();
assert!(layout.ty.is_simd());
let (orig_lane_count, orig_lane_ty) = layout.ty.simd_size_and_type(fx.tcx);
let lane_layout = fx.layout_of(lane_ty);
assert!(
(lane_idx + 1) * lane_layout.size <= orig_lane_count * fx.layout_of(orig_lane_ty).size
);
match self.inner {
CPlaceInner::Var(_, _) => unreachable!(),
CPlaceInner::VarPair(_, _, _) => unreachable!(),
CPlaceInner::Addr(ptr, None) => {
let field_offset = lane_layout.size * lane_idx;
let field_ptr = ptr.offset_i64(fx, i64::try_from(field_offset.bytes()).unwrap());
CPlace::for_ptr(field_ptr, lane_layout)
}
CPlaceInner::Addr(_, Some(_)) => unreachable!(),
}
}
pub(crate) fn place_index(
self,
fx: &mut FunctionCx<'_, '_, 'tcx>,