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Legalize libcall signatures.

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Explicitly legalize signatures created for libcalls.
This commit is contained in:
Dan Gohman
2018-05-29 14:11:20 -07:00
parent d8eaa19dda
commit c21af29c79
7 changed files with 41 additions and 6 deletions
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6
lib/codegen/src/legalizer/libcall.rs
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@@ -3,6 +3,7 @@
use ir;
use ir::{get_libcall_funcref, InstBuilder};
use isa::TargetIsa;
use legalizer::boundary::legalize_libcall_signature;
use std::vec::Vec;
/// Try to expand `inst` as a library call, returning true is successful.
@@ -21,7 +22,10 @@ pub fn expand_as_libcall(inst: ir::Inst, func: &mut ir::Function, isa: &TargetIs
let funcref = get_libcall_funcref(libcall, func, inst, isa);
func.dfg.replace(inst).call(funcref, &args);
// TODO: ask the ISA to legalize the signature.
// Ask the ISA to legalize the signature.
let fn_data = &func.dfg.ext_funcs[funcref];
let sig_data = &mut func.dfg.signatures[fn_data.signature];
legalize_libcall_signature(sig_data, isa);
true
}