bjoernager/rust
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Prepare call/invoke for opaque pointers

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Rather than relying on `getPointerElementType()` from LLVM function
pointers, we now pass the function type explicitly when building `call`
or `invoke` instructions.
This commit is contained in:
Josh Stone 2021-08-03 15:09:57 -07:00
parent 61a941b8ba
commit 183d79cc09
15 changed files with 168 additions and 151 deletions
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14
compiler/rustc_codegen_llvm/src/context.rs
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@ -84,9 +84,9 @@ pub struct CodegenCx<'ll, 'tcx> {
eh_personality: Cell<Option<&'ll Value>>,
eh_catch_typeinfo: Cell<Option<&'ll Value>>,
pub rust_try_fn: Cell<Option<&'ll Value>>,
pub rust_try_fn: Cell<Option<(&'ll Type, &'ll Value)>>,
intrinsics: RefCell<FxHashMap<&'static str, &'ll Value>>,
intrinsics: RefCell<FxHashMap<&'static str, (&'ll Type, &'ll Value)>>,
/// A counter that is used for generating local symbol names
local_gen_sym_counter: Cell<usize>,
@ -452,7 +452,7 @@ impl MiscMethods<'tcx> for CodegenCx<'ll, 'tcx> {
}
impl CodegenCx<'b, 'tcx> {
crate fn get_intrinsic(&self, key: &str) -> &'b Value {
crate fn get_intrinsic(&self, key: &str) -> (&'b Type, &'b Value) {
if let Some(v) = self.intrinsics.borrow().get(key).cloned() {
return v;
}
@ -465,18 +465,18 @@ impl CodegenCx<'b, 'tcx> {
name: &'static str,
args: Option<&[&'b llvm::Type]>,
ret: &'b llvm::Type,
) -> &'b llvm::Value {
) -> (&'b llvm::Type, &'b llvm::Value) {
let fn_ty = if let Some(args) = args {
self.type_func(args, ret)
} else {
self.type_variadic_func(&[], ret)
};
let f = self.declare_cfn(name, llvm::UnnamedAddr::No, fn_ty);
self.intrinsics.borrow_mut().insert(name, f);
f
self.intrinsics.borrow_mut().insert(name, (fn_ty, f));
(fn_ty, f)
}
fn declare_intrinsic(&self, key: &str) -> Option<&'b Value> {
fn declare_intrinsic(&self, key: &str) -> Option<(&'b Type, &'b Value)> {
macro_rules! ifn {
($name:expr, fn() -> $ret:expr) => (
if key == $name {