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Remove ancient register allocation (#3401)

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This commit is contained in:
Benjamin Bouvier
2021-09-30 21:27:23 +02:00
committed by GitHub
parent 80336f4535
commit bae4ec6427
66 changed files with 112 additions and 15380 deletions
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24
cranelift/codegen/src/cursor.rs
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@@ -634,7 +634,7 @@ impl<'c, 'f> ir::InstInserterBase<'c> for &'c mut FuncCursor<'f> {
&mut self.func.dfg
}
fn insert_built_inst(self, inst: ir::Inst, _: ir::Type) -> &'c mut ir::DataFlowGraph {
fn insert_built_inst(self, inst: ir::Inst) -> &'c mut ir::DataFlowGraph {
// TODO: Remove this assertion once #796 is fixed.
#[cfg(debug_assertions)]
{
@@ -759,11 +759,7 @@ impl<'c, 'f> ir::InstInserterBase<'c> for &'c mut EncCursor<'f> {
&mut self.func.dfg
}
fn insert_built_inst(
self,
inst: ir::Inst,
ctrl_typevar: ir::Type,
) -> &'c mut ir::DataFlowGraph {
fn insert_built_inst(self, inst: ir::Inst) -> &'c mut ir::DataFlowGraph {
// TODO: Remove this assertion once #796 is fixed.
#[cfg(debug_assertions)]
{
@@ -787,6 +783,7 @@ impl<'c, 'f> ir::InstInserterBase<'c> for &'c mut EncCursor<'f> {
};
};
}
// Insert the instruction and remember the reference.
self.insert_inst(inst);
self.built_inst = Some(inst);
@@ -795,21 +792,6 @@ impl<'c, 'f> ir::InstInserterBase<'c> for &'c mut EncCursor<'f> {
self.func.srclocs[inst] = self.srcloc;
}
// Skip the encoding update if we're using a new (MachInst) backend; encodings come later,
// during lowering.
if self.isa.get_mach_backend().is_none() {
// Assign an encoding.
// XXX Is there a way to describe this error to the user?
#[cfg_attr(feature = "cargo-clippy", allow(clippy::match_wild_err_arm))]
match self
.isa
.encode(&self.func, &self.func.dfg[inst], ctrl_typevar)
{
Ok(e) => self.func.encodings[inst] = e,
Err(_) => panic!("can't encode {}", self.display_inst(inst)),
}
}
&mut self.func.dfg
}
}