bjoernager/rust
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compiler: fold by value

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This commit is contained in:
Bastian Kauschke 2020-10-24 02:21:18 +02:00
parent 3ec6720bf1
commit 2bf93bd852
140 changed files with 679 additions and 699 deletions
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8
compiler/rustc_codegen_ssa/src/mir/mod.rs
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@ -87,7 +87,7 @@ pub struct FunctionCx<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> {
}
impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
pub fn monomorphize<T>(&self, value: &T) -> T
pub fn monomorphize<T>(&self, value: T) -> T
where
T: Copy + TypeFoldable<'tcx>,
{
@ -208,7 +208,7 @@ pub fn codegen_mir<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>(
let mut allocate_local = |local| {
let decl = &mir.local_decls[local];
let layout = bx.layout_of(fx.monomorphize(&decl.ty));
let layout = bx.layout_of(fx.monomorphize(decl.ty));
assert!(!layout.ty.has_erasable_regions());
if local == mir::RETURN_PLACE && fx.fn_abi.ret.is_indirect() {
@ -364,7 +364,7 @@ fn arg_local_refs<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>(
// to reconstruct it into a tuple local variable, from multiple
// individual LLVM function arguments.
let arg_ty = fx.monomorphize(&arg_decl.ty);
let arg_ty = fx.monomorphize(arg_decl.ty);
let tupled_arg_tys = match arg_ty.kind() {
ty::Tuple(tys) => tys,
_ => bug!("spread argument isn't a tuple?!"),
@ -385,7 +385,7 @@ fn arg_local_refs<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>(
}
if fx.fn_abi.c_variadic && arg_index == fx.fn_abi.args.len() {
let arg_ty = fx.monomorphize(&arg_decl.ty);
let arg_ty = fx.monomorphize(arg_decl.ty);
let va_list = PlaceRef::alloca(bx, bx.layout_of(arg_ty));
bx.va_start(va_list.llval);