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Adds the libcall_call_conv setting and use it for libcall calls expansion;

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This commit is contained in:
Benjamin Bouvier
2019-08-05 12:23:39 +02:00
committed by Dan Gohman
parent c7b4b98cac
commit d8d3602257
5 changed files with 63 additions and 4 deletions
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15
cranelift/codegen/src/ir/libcall.rs
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@@ -108,11 +108,13 @@ impl LibCall {
/// If there is an existing reference, use it, otherwise make a new one.
pub fn get_libcall_funcref(
libcall: LibCall,
call_conv: CallConv,
func: &mut Function,
inst: Inst,
isa: &dyn TargetIsa,
) -> FuncRef {
find_funcref(libcall, func).unwrap_or_else(|| make_funcref_for_inst(libcall, func, inst, isa))
find_funcref(libcall, func)
.unwrap_or_else(|| make_funcref_for_inst(libcall, call_conv, func, inst, isa))
}
/// Get a function reference for the probestack function in `func`.
@@ -164,11 +166,12 @@ fn make_funcref_for_probestack(
/// Create a funcref for `libcall` with a signature matching `inst`.
fn make_funcref_for_inst(
libcall: LibCall,
call_conv: CallConv,
func: &mut Function,
inst: Inst,
isa: &dyn TargetIsa,
) -> FuncRef {
let mut sig = Signature::new(isa.default_call_conv());
let mut sig = Signature::new(call_conv);
for &v in func.dfg.inst_args(inst) {
sig.params.push(AbiParam::new(func.dfg.value_type(v)));
}
@@ -176,6 +179,14 @@ fn make_funcref_for_inst(
sig.returns.push(AbiParam::new(func.dfg.value_type(v)));
}
if call_conv == CallConv::Baldrdash {
// Adds the special VMContext parameter to the signature.
sig.params.push(AbiParam::special(
isa.pointer_type(),
ArgumentPurpose::VMContext,
));
}
make_funcref(libcall, func, sig, isa)
}