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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168
compiler/rustc_codegen_gcc/src/common.rs
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@ -1,14 +1,9 @@
use gccjit::LValue;
use gccjit::{RValue, Type, ToRValue};
use rustc_codegen_ssa::traits::{
BaseTypeMethods,
ConstMethods,
MiscMethods,
StaticMethods,
};
use rustc_middle::mir::Mutability;
use rustc_middle::ty::layout::{LayoutOf};
use gccjit::{RValue, ToRValue, Type};
use rustc_codegen_ssa::traits::{BaseTypeMethods, ConstMethods, MiscMethods, StaticMethods};
use rustc_middle::mir::interpret::{ConstAllocation, GlobalAlloc, Scalar};
use rustc_middle::mir::Mutability;
use rustc_middle::ty::layout::LayoutOf;
use rustc_target::abi::{self, HasDataLayout, Pointer};
use crate::consts::const_alloc_to_gcc;
@ -40,9 +35,7 @@ pub fn bytes_in_context<'gcc, 'tcx>(cx: &CodegenCx<'gcc, 'tcx>, bytes: &[u8]) ->
let byte_type = context.new_type::<u8>();
let typ = context.new_array_type(None, byte_type, bytes.len() as u64);
let elements: Vec<_> =
bytes.iter()
.map(|&byte| context.new_rvalue_from_int(byte_type, byte as i32))
.collect();
bytes.iter().map(|&byte| context.new_rvalue_from_int(byte_type, byte as i32)).collect();
context.new_array_constructor(None, typ, &elements)
}
@ -54,23 +47,20 @@ impl<'gcc, 'tcx> ConstMethods<'tcx> for CodegenCx<'gcc, 'tcx> {
fn const_null(&self, typ: Type<'gcc>) -> RValue<'gcc> {
if type_is_pointer(typ) {
self.context.new_null(typ)
}
else {
} else {
self.const_int(typ, 0)
}
}
fn const_undef(&self, typ: Type<'gcc>) -> RValue<'gcc> {
let local = self.current_func.borrow().expect("func")
.new_local(None, typ, "undefined");
let local = self.current_func.borrow().expect("func").new_local(None, typ, "undefined");
if typ.is_struct().is_some() {
// NOTE: hack to workaround a limitation of the rustc API: see comment on
// CodegenCx.structs_as_pointer
let pointer = local.get_address(None);
self.structs_as_pointer.borrow_mut().insert(pointer);
pointer
}
else {
} else {
local.to_rvalue()
}
}
@ -143,16 +133,15 @@ impl<'gcc, 'tcx> ConstMethods<'tcx> for CodegenCx<'gcc, 'tcx> {
.or_insert_with(|| (s.to_owned(), self.global_string(s)))
.1;
let len = s.len();
let cs = self.const_ptrcast(str_global.get_address(None),
let cs = self.const_ptrcast(
str_global.get_address(None),
self.type_ptr_to(self.layout_of(self.tcx.types.str_).gcc_type(self)),
);
(cs, self.const_usize(len as u64))
}
fn const_struct(&self, values: &[RValue<'gcc>], packed: bool) -> RValue<'gcc> {
let fields: Vec<_> = values.iter()
.map(|value| value.get_type())
.collect();
let fields: Vec<_> = values.iter().map(|value| value.get_type()).collect();
// TODO(antoyo): cache the type? It's anonymous, so probably not.
let typ = self.type_struct(&fields, packed);
let struct_type = typ.is_struct().expect("struct type");
@ -178,9 +167,10 @@ impl<'gcc, 'tcx> ConstMethods<'tcx> for CodegenCx<'gcc, 'tcx> {
// FIXME(antoyo): there's some issues with using the u128 code that follows, so hard-code
// the paths for floating-point values.
if ty == self.float_type {
return self.context.new_rvalue_from_double(ty, f32::from_bits(data as u32) as f64);
}
else if ty == self.double_type {
return self
.context
.new_rvalue_from_double(ty, f32::from_bits(data as u32) as f64);
} else if ty == self.double_type {
return self.context.new_rvalue_from_double(ty, f64::from_bits(data as u64));
}
@ -192,8 +182,7 @@ impl<'gcc, 'tcx> ConstMethods<'tcx> for CodegenCx<'gcc, 'tcx> {
// FIXME(antoyo): fix bitcast to work in constant contexts.
// TODO(antoyo): perhaps only use bitcast for pointers?
self.context.new_cast(None, value, ty)
}
else {
} else {
// TODO(bjorn3): assert size is correct
self.const_bitcast(value, ty)
}
@ -201,42 +190,41 @@ impl<'gcc, 'tcx> ConstMethods<'tcx> for CodegenCx<'gcc, 'tcx> {
Scalar::Ptr(ptr, _size) => {
let (prov, offset) = ptr.into_parts(); // we know the `offset` is relative
let alloc_id = prov.alloc_id();
let base_addr =
match self.tcx.global_alloc(alloc_id) {
GlobalAlloc::Memory(alloc) => {
let init = const_alloc_to_gcc(self, alloc);
let alloc = alloc.inner();
let value =
match alloc.mutability {
Mutability::Mut => self.static_addr_of_mut(init, alloc.align, None),
_ => self.static_addr_of(init, alloc.align, None),
};
if !self.sess().fewer_names() {
// TODO(antoyo): set value name.
}
value
},
GlobalAlloc::Function(fn_instance) => {
self.get_fn_addr(fn_instance)
},
GlobalAlloc::VTable(ty, trait_ref) => {
let alloc = self.tcx.global_alloc(self.tcx.vtable_allocation((ty, trait_ref))).unwrap_memory();
let init = const_alloc_to_gcc(self, alloc);
self.static_addr_of(init, alloc.inner().align, None)
let base_addr = match self.tcx.global_alloc(alloc_id) {
GlobalAlloc::Memory(alloc) => {
let init = const_alloc_to_gcc(self, alloc);
let alloc = alloc.inner();
let value = match alloc.mutability {
Mutability::Mut => self.static_addr_of_mut(init, alloc.align, None),
_ => self.static_addr_of(init, alloc.align, None),
};
if !self.sess().fewer_names() {
// TODO(antoyo): set value name.
}
GlobalAlloc::Static(def_id) => {
assert!(self.tcx.is_static(def_id));
self.get_static(def_id).get_address(None)
},
};
value
}
GlobalAlloc::Function(fn_instance) => self.get_fn_addr(fn_instance),
GlobalAlloc::VTable(ty, trait_ref) => {
let alloc = self
.tcx
.global_alloc(self.tcx.vtable_allocation((ty, trait_ref)))
.unwrap_memory();
let init = const_alloc_to_gcc(self, alloc);
self.static_addr_of(init, alloc.inner().align, None)
}
GlobalAlloc::Static(def_id) => {
assert!(self.tcx.is_static(def_id));
self.get_static(def_id).get_address(None)
}
};
let ptr_type = base_addr.get_type();
let base_addr = self.const_bitcast(base_addr, self.usize_type);
let offset = self.context.new_rvalue_from_long(self.usize_type, offset.bytes() as i64);
let offset =
self.context.new_rvalue_from_long(self.usize_type, offset.bytes() as i64);
let ptr = self.const_bitcast(base_addr + offset, ptr_type);
if !matches!(layout.primitive(), Pointer(_)) {
self.const_bitcast(ptr.dereference(None).to_rvalue(), ty)
}
else {
} else {
self.const_bitcast(ptr, ty)
}
}
@ -261,7 +249,9 @@ impl<'gcc, 'tcx> ConstMethods<'tcx> for CodegenCx<'gcc, 'tcx> {
}
fn const_ptr_byte_offset(&self, base_addr: Self::Value, offset: abi::Size) -> Self::Value {
self.context.new_array_access(None, base_addr, self.const_usize(offset.bytes())).get_address(None)
self.context
.new_array_access(None, base_addr, self.const_usize(offset.bytes()))
.get_address(None)
}
}
@ -284,35 +274,25 @@ impl<'gcc, 'tcx> SignType<'gcc, 'tcx> for Type<'gcc> {
fn to_signed(&self, cx: &CodegenCx<'gcc, 'tcx>) -> Type<'gcc> {
if self.is_u8(cx) {
cx.i8_type
}
else if self.is_u16(cx) {
} else if self.is_u16(cx) {
cx.i16_type
}
else if self.is_u32(cx) {
} else if self.is_u32(cx) {
cx.i32_type
}
else if self.is_u64(cx) {
} else if self.is_u64(cx) {
cx.i64_type
}
else if self.is_u128(cx) {
} else if self.is_u128(cx) {
cx.i128_type
}
else if self.is_uchar(cx) {
} else if self.is_uchar(cx) {
cx.char_type
}
else if self.is_ushort(cx) {
} else if self.is_ushort(cx) {
cx.short_type
}
else if self.is_uint(cx) {
} else if self.is_uint(cx) {
cx.int_type
}
else if self.is_ulong(cx) {
} else if self.is_ulong(cx) {
cx.long_type
}
else if self.is_ulonglong(cx) {
} else if self.is_ulonglong(cx) {
cx.longlong_type
}
else {
} else {
self.clone()
}
}
@ -320,41 +300,31 @@ impl<'gcc, 'tcx> SignType<'gcc, 'tcx> for Type<'gcc> {
fn to_unsigned(&self, cx: &CodegenCx<'gcc, 'tcx>) -> Type<'gcc> {
if self.is_i8(cx) {
cx.u8_type
}
else if self.is_i16(cx) {
} else if self.is_i16(cx) {
cx.u16_type
}
else if self.is_i32(cx) {
} else if self.is_i32(cx) {
cx.u32_type
}
else if self.is_i64(cx) {
} else if self.is_i64(cx) {
cx.u64_type
}
else if self.is_i128(cx) {
} else if self.is_i128(cx) {
cx.u128_type
}
else if self.is_char(cx) {
} else if self.is_char(cx) {
cx.uchar_type
}
else if self.is_short(cx) {
} else if self.is_short(cx) {
cx.ushort_type
}
else if self.is_int(cx) {
} else if self.is_int(cx) {
cx.uint_type
}
else if self.is_long(cx) {
} else if self.is_long(cx) {
cx.ulong_type
}
else if self.is_longlong(cx) {
} else if self.is_longlong(cx) {
cx.ulonglong_type
}
else {
} else {
self.clone()
}
}
}
pub trait TypeReflection<'gcc, 'tcx> {
pub trait TypeReflection<'gcc, 'tcx> {
fn is_uchar(&self, cx: &CodegenCx<'gcc, 'tcx>) -> bool;
fn is_ushort(&self, cx: &CodegenCx<'gcc, 'tcx>) -> bool;
fn is_uint(&self, cx: &CodegenCx<'gcc, 'tcx>) -> bool;