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AArch64: Migrate calls and returns to ISLE. (#4788)

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This commit is contained in:
Chris Fallin
2022-08-26 16:26:39 -07:00
committed by GitHub
parent ca6d648e37
commit 8e8dfdf5f9
18 changed files with 282 additions and 329 deletions
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32
cranelift/codegen/src/machinst/lower.rs
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@@ -11,8 +11,8 @@ use crate::inst_predicates::{has_lowering_side_effect, is_constant_64bit};
use crate::ir::{
types::{FFLAGS, IFLAGS},
ArgumentPurpose, Block, Constant, ConstantData, DataFlowGraph, Function, GlobalValue,
GlobalValueData, Immediate, Inst, InstructionData, MemFlags, Opcode, Signature, Type, Value,
ValueDef, ValueLabelAssignments, ValueLabelStart,
GlobalValueData, Immediate, Inst, InstructionData, MemFlags, Opcode, Type, Value, ValueDef,
ValueLabelAssignments, ValueLabelStart,
};
use crate::ir::{ExternalName, RelSourceLoc};
use crate::machinst::{
@@ -1026,34 +1026,6 @@ impl<'func, I: VCodeInst> Lower<'func, I> {
&self.f.dfg[ir_inst]
}
/// Get the target for a call instruction, as an `ExternalName`. Returns a tuple
/// providing this name and the "relocation distance", i.e., whether the backend
/// can assume the target will be "nearby" (within some small offset) or an
/// arbitrary address. (This comes from the `colocated` bit in the CLIF.)
pub fn call_target<'b>(&'b self, ir_inst: Inst) -> Option<(&'b ExternalName, RelocDistance)> {
match &self.f.dfg[ir_inst] {
&InstructionData::Call { func_ref, .. }
| &InstructionData::FuncAddr { func_ref, .. } => {
let funcdata = &self.f.dfg.ext_funcs[func_ref];
let dist = funcdata.reloc_distance();
Some((&funcdata.name, dist))
}
_ => None,
}
}
/// Get the signature for a call or call-indirect instruction.
pub fn call_sig<'b>(&'b self, ir_inst: Inst) -> Option<&'b Signature> {
match &self.f.dfg[ir_inst] {
&InstructionData::Call { func_ref, .. } => {
let funcdata = &self.f.dfg.ext_funcs[func_ref];
Some(&self.f.dfg.signatures[funcdata.signature])
}
&InstructionData::CallIndirect { sig_ref, .. } => Some(&self.f.dfg.signatures[sig_ref]),
_ => None,
}
}
/// Get the symbol name, relocation distance estimate, and offset for a
/// symbol_value instruction.
pub fn symbol_value<'b>(