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Fixes #1619: Properly bubble up errors when seeing an unexpected type during lowering.

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Benjamin Bouvier
2020-04-28 17:40:16 +02:00
parent c9b27b484e
commit 698dc9c401
6 changed files with 45 additions and 32 deletions
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5
cranelift/codegen/src/machinst/mod.rs
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@@ -163,8 +163,9 @@ pub trait MachInst: Clone + Debug {
/// (e.g., add directly from or directly to memory), like x86.
fn maybe_direct_reload(&self, reg: VirtualReg, slot: SpillSlot) -> Option<Self>;
/// Determine a register class to store the given CraneLift type.
fn rc_for_type(ty: Type) -> RegClass;
/// Determine a register class to store the given Cranelift type.
/// May return an error if the type isn't supported by this backend.
fn rc_for_type(ty: Type) -> CodegenResult<RegClass>;
/// Generate a jump to another target. Used during lowering of
/// control flow.