bjoernager/rust
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Merge commit 'b385428e3d' into subtree-update_cg_gcc_2024-03-05

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This commit is contained in:
Guillaume Gomez 2024-03-05 19:58:36 +01:00
commit 0d359efbe6
76 changed files with 7183 additions and 4278 deletions
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107
compiler/rustc_codegen_gcc/src/abi.rs
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@ -18,17 +18,16 @@ impl<'a, 'gcc, 'tcx> AbiBuilderMethods<'tcx> for Builder<'a, 'gcc, 'tcx> {
fn get_param(&mut self, index: usize) -> Self::Value {
let func = self.current_func();
let param = func.get_param(index as i32);
let on_stack =
if let Some(on_stack_param_indices) = self.on_stack_function_params.borrow().get(&func) {
on_stack_param_indices.contains(&index)
}
else {
false
};
let on_stack = if let Some(on_stack_param_indices) =
self.on_stack_function_params.borrow().get(&func)
{
on_stack_param_indices.contains(&index)
} else {
false
};
if on_stack {
param.to_lvalue().get_address(None)
}
else {
} else {
param.to_rvalue()
}
}
@ -37,13 +36,14 @@ impl<'a, 'gcc, 'tcx> AbiBuilderMethods<'tcx> for Builder<'a, 'gcc, 'tcx> {
impl GccType for CastTarget {
fn gcc_type<'gcc>(&self, cx: &CodegenCx<'gcc, '_>) -> Type<'gcc> {
let rest_gcc_unit = self.rest.unit.gcc_type(cx);
let (rest_count, rem_bytes) =
if self.rest.unit.size.bytes() == 0 {
(0, 0)
}
else {
(self.rest.total.bytes() / self.rest.unit.size.bytes(), self.rest.total.bytes() % self.rest.unit.size.bytes())
};
let (rest_count, rem_bytes) = if self.rest.unit.size.bytes() == 0 {
(0, 0)
} else {
(
self.rest.total.bytes() / self.rest.unit.size.bytes(),
self.rest.total.bytes() % self.rest.unit.size.bytes(),
)
};
if self.prefix.iter().all(|x| x.is_none()) {
// Simplify to a single unit when there is no prefix and size <= unit size
@ -61,9 +61,7 @@ impl GccType for CastTarget {
let mut args: Vec<_> = self
.prefix
.iter()
.flat_map(|option_reg| {
option_reg.map(|reg| reg.gcc_type(cx))
})
.flat_map(|option_reg| option_reg.map(|reg| reg.gcc_type(cx)))
.chain((0..rest_count).map(|_| rest_gcc_unit))
.collect();
@ -86,12 +84,10 @@ impl GccType for Reg {
fn gcc_type<'gcc>(&self, cx: &CodegenCx<'gcc, '_>) -> Type<'gcc> {
match self.kind {
RegKind::Integer => cx.type_ix(self.size.bits()),
RegKind::Float => {
match self.size.bits() {
32 => cx.type_f32(),
64 => cx.type_f64(),
_ => bug!("unsupported float: {:?}", self),
}
RegKind::Float => match self.size.bits() {
32 => cx.type_f32(),
64 => cx.type_f64(),
_ => bug!("unsupported float: {:?}", self),
},
RegKind::Vector => unimplemented!(), //cx.type_vector(cx.type_i8(), self.size.bytes()),
}
@ -119,19 +115,18 @@ impl<'gcc, 'tcx> FnAbiGccExt<'gcc, 'tcx> for FnAbi<'tcx, Ty<'tcx>> {
// This capacity calculation is approximate.
let mut argument_tys = Vec::with_capacity(
self.args.len() + if let PassMode::Indirect { .. } = self.ret.mode { 1 } else { 0 }
self.args.len() + if let PassMode::Indirect { .. } = self.ret.mode { 1 } else { 0 },
);
let return_type =
match self.ret.mode {
PassMode::Ignore => cx.type_void(),
PassMode::Direct(_) | PassMode::Pair(..) => self.ret.layout.immediate_gcc_type(cx),
PassMode::Cast { ref cast, .. } => cast.gcc_type(cx),
PassMode::Indirect { .. } => {
argument_tys.push(cx.type_ptr_to(self.ret.memory_ty(cx)));
cx.type_void()
}
};
let return_type = match self.ret.mode {
PassMode::Ignore => cx.type_void(),
PassMode::Direct(_) | PassMode::Pair(..) => self.ret.layout.immediate_gcc_type(cx),
PassMode::Cast { ref cast, .. } => cast.gcc_type(cx),
PassMode::Indirect { .. } => {
argument_tys.push(cx.type_ptr_to(self.ret.memory_ty(cx)));
cx.type_void()
}
};
#[cfg(feature = "master")]
let mut non_null_args = Vec::new();
@ -149,17 +144,23 @@ impl<'gcc, 'tcx> FnAbiGccExt<'gcc, 'tcx> for FnAbi<'tcx, Ty<'tcx>> {
ty
};
#[cfg(not(feature = "master"))]
let apply_attrs = |ty: Type<'gcc>, _attrs: &ArgAttributes, _arg_index: usize| {
ty
};
let apply_attrs = |ty: Type<'gcc>, _attrs: &ArgAttributes, _arg_index: usize| ty;
for arg in self.args.iter() {
let arg_ty = match arg.mode {
PassMode::Ignore => continue,
PassMode::Pair(a, b) => {
let arg_pos = argument_tys.len();
argument_tys.push(apply_attrs(arg.layout.scalar_pair_element_gcc_type(cx, 0), &a, arg_pos));
argument_tys.push(apply_attrs(arg.layout.scalar_pair_element_gcc_type(cx, 1), &b, arg_pos + 1));
argument_tys.push(apply_attrs(
arg.layout.scalar_pair_element_gcc_type(cx, 0),
&a,
arg_pos,
));
argument_tys.push(apply_attrs(
arg.layout.scalar_pair_element_gcc_type(cx, 1),
&b,
arg_pos + 1,
));
continue;
}
PassMode::Cast { ref cast, pad_i32 } => {
@ -174,14 +175,17 @@ impl<'gcc, 'tcx> FnAbiGccExt<'gcc, 'tcx> for FnAbi<'tcx, Ty<'tcx>> {
// This is a "byval" argument, so we don't apply the `restrict` attribute on it.
on_stack_param_indices.insert(argument_tys.len());
arg.memory_ty(cx)
},
PassMode::Direct(attrs) => apply_attrs(arg.layout.immediate_gcc_type(cx), &attrs, argument_tys.len()),
}
PassMode::Direct(attrs) => {
apply_attrs(arg.layout.immediate_gcc_type(cx), &attrs, argument_tys.len())
}
PassMode::Indirect { attrs, meta_attrs: None, on_stack: false } => {
apply_attrs(cx.type_ptr_to(arg.memory_ty(cx)), &attrs, argument_tys.len())
}
PassMode::Indirect { attrs, meta_attrs: Some(meta_attrs), on_stack } => {
assert!(!on_stack);
let ty = apply_attrs(cx.type_ptr_to(arg.memory_ty(cx)), &attrs, argument_tys.len());
let ty =
apply_attrs(cx.type_ptr_to(arg.memory_ty(cx)), &attrs, argument_tys.len());
apply_attrs(ty, &meta_attrs, argument_tys.len())
}
};
@ -207,15 +211,14 @@ impl<'gcc, 'tcx> FnAbiGccExt<'gcc, 'tcx> for FnAbi<'tcx, Ty<'tcx>> {
fn ptr_to_gcc_type(&self, cx: &CodegenCx<'gcc, 'tcx>) -> Type<'gcc> {
// FIXME(antoyo): Should we do something with `FnAbiGcc::fn_attributes`?
let FnAbiGcc {
return_type,
arguments_type,
is_c_variadic,
let FnAbiGcc { return_type, arguments_type, is_c_variadic, on_stack_param_indices, .. } =
self.gcc_type(cx);
let pointer_type =
cx.context.new_function_pointer_type(None, return_type, &arguments_type, is_c_variadic);
cx.on_stack_params.borrow_mut().insert(
pointer_type.dyncast_function_ptr_type().expect("function ptr type"),
on_stack_param_indices,
..
} = self.gcc_type(cx);
let pointer_type = cx.context.new_function_pointer_type(None, return_type, &arguments_type, is_c_variadic);
cx.on_stack_params.borrow_mut().insert(pointer_type.dyncast_function_ptr_type().expect("function ptr type"), on_stack_param_indices);
);
pointer_type
}
}