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Implement ByteAddressableBuffer prototype detached from bindless #735

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merged 3 commits into from
Aug 31, 2021
Merged

Implement ByteAddressableBuffer prototype detached from bindless #735

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b0bb3b1
Implement ByteAddressableBuffer prototype
khyperia Aug 23, 2021
6b5e9f0
Make ByteAddressableBuffer unsafe
khyperia Aug 25, 2021
c36203a
Update crates/rustc_codegen_spirv/src/builder/byte_addressable_buffer.rs
khyperia Aug 26, 2021
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22 changes: 22 additions & 0 deletions crates/rustc_codegen_spirv/src/attr.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -89,6 +89,8 @@ pub enum SpirvAttribute {

// `fn`/closure attributes:
UnrollLoops,
BufferLoadIntrinsic,
BufferStoreIntrinsic,
}

// HACK(eddyb) this is similar to `rustc_span::Spanned` but with `value` as the
Expand Down Expand Up @@ -122,6 +124,8 @@ pub struct AggregatedSpirvAttributes {

// `fn`/closure attributes:
pub unroll_loops: Option<Spanned<()>>,
pub buffer_load_intrinsic: Option<Spanned<()>>,
pub buffer_store_intrinsic: Option<Spanned<()>>,
}

struct MultipleAttrs {
Expand Down Expand Up @@ -209,6 +213,18 @@ impl AggregatedSpirvAttributes {
"#[spirv(attachment_index)]",
),
UnrollLoops => try_insert(&mut self.unroll_loops, (), span, "#[spirv(unroll_loops)]"),
BufferLoadIntrinsic => try_insert(
&mut self.buffer_load_intrinsic,
(),
span,
"#[spirv(buffer_load_intrinsic)]",
),
BufferStoreIntrinsic => try_insert(
&mut self.buffer_store_intrinsic,
(),
span,
"#[spirv(buffer_store_intrinsic)]",
),
}
}
}
Expand Down Expand Up @@ -342,6 +358,12 @@ impl CheckSpirvAttrVisitor<'_> {

_ => Err(Expected("function or closure")),
},
SpirvAttribute::BufferLoadIntrinsic | SpirvAttribute::BufferStoreIntrinsic => {
match target {
Target::Fn => Ok(()),
_ => Err(Expected("function")),
}
}
};
match valid_target {
Err(Expected(expected_target)) => self.tcx.sess.span_err(
Expand Down
22 changes: 20 additions & 2 deletions crates/rustc_codegen_spirv/src/builder/builder_methods.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1845,8 +1845,8 @@ impl<'a, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'tcx> {
SpirvType::Adt { field_types, .. } => field_types[idx as usize],
SpirvType::Array { element, .. } | SpirvType::Vector { element, .. } => element,
other => self.fatal(&format!(
"extract_value not implemented on type {:?}",
other
"extract_value not implemented on type {}",
other.debug(agg_val.ty, self)
)),
};
self.emit()
Expand Down Expand Up @@ -2196,6 +2196,24 @@ impl<'a, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'tcx> {
// needing to materialize `&core::panic::Location` or `format_args!`.
self.abort();
self.undef(result_type)
} else if self
.buffer_load_intrinsic_fn_id
.borrow()
.contains(&callee_val)
{
self.codegen_buffer_load_intrinsic(result_type, args)
} else if self
.buffer_store_intrinsic_fn_id
.borrow()
.contains(&callee_val)
{
self.codegen_buffer_store_intrinsic(args);

let void_ty = SpirvType::Void.def(rustc_span::DUMMY_SP, self);
SpirvValue {
kind: SpirvValueKind::IllegalTypeUsed(void_ty),
ty: void_ty,
}
} else {
let args = args.iter().map(|arg| arg.def(self)).collect::<Vec<_>>();
self.emit()
Expand Down
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