Auto merge of #121728 - tgross35:f16-f128-step1-ty-updates, r=compiler-errors
Add stubs in IR and ABI for `f16` and `f128` This is the very first step toward the changes in https://github.com/rust-lang/rust/pull/114607 and the [`f16` and `f128` RFC](https://rust-lang.github.io/rfcs/3453-f16-and-f128.html). It adds the types to `rustc_type_ir::FloatTy` and `rustc_abi::Primitive`, and just propagates those out as `unimplemented!` stubs where necessary. These types do not parse yet so there is no feature gate, and it should be okay to use `unimplemented!`. The next steps will probably be AST support with parsing and the feature gate. r? `@compiler-errors` cc `@Nilstrieb` suggested breaking the PR up in https://github.com/rust-lang/rust/pull/120645#issuecomment-1925900572
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commit
27b669adc2
10
src/type_.rs
10
src/type_.rs
@ -83,8 +83,10 @@ pub fn type_vector(&self, ty: Type<'gcc>, len: u64) -> Type<'gcc> {
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pub fn type_float_from_ty(&self, t: ty::FloatTy) -> Type<'gcc> {
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match t {
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ty::FloatTy::F16 => self.type_f16(),
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ty::FloatTy::F32 => self.type_f32(),
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ty::FloatTy::F64 => self.type_f64(),
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ty::FloatTy::F128 => self.type_f128(),
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}
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}
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}
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@ -118,6 +120,10 @@ fn type_isize(&self) -> Type<'gcc> {
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self.isize_type
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}
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fn type_f16(&self) -> Type<'gcc> {
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unimplemented!("f16_f128")
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}
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fn type_f32(&self) -> Type<'gcc> {
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self.float_type
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}
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@ -125,6 +131,10 @@ fn type_f32(&self) -> Type<'gcc> {
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fn type_f64(&self) -> Type<'gcc> {
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self.double_type
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}
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fn type_f128(&self) -> Type<'gcc> {
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unimplemented!("f16_f128")
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}
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fn type_func(&self, params: &[Type<'gcc>], return_type: Type<'gcc>) -> Type<'gcc> {
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self.context.new_function_pointer_type(None, return_type, params, false)
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@ -6,7 +6,7 @@
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use rustc_middle::ty::{self, Ty, TypeVisitableExt};
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use rustc_middle::ty::layout::{LayoutOf, TyAndLayout};
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use rustc_middle::ty::print::with_no_trimmed_paths;
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use rustc_target::abi::{self, Abi, Align, F32, F64, FieldsShape, Int, Integer, Pointer, PointeeInfo, Size, TyAbiInterface, Variants};
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use rustc_target::abi::{self, Abi, Align, F16, F128, F32, F64, FieldsShape, Int, Integer, Pointer, PointeeInfo, Size, TyAbiInterface, Variants};
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use rustc_target::abi::call::{CastTarget, FnAbi, Reg};
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use crate::abi::{FnAbiGcc, FnAbiGccExt, GccType};
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@ -257,8 +257,10 @@ fn scalar_gcc_type_at<'gcc>(&self, cx: &CodegenCx<'gcc, 'tcx>, scalar: &abi::Sca
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match scalar.primitive() {
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Int(i, true) => cx.type_from_integer(i),
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Int(i, false) => cx.type_from_unsigned_integer(i),
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F16 => cx.type_f16(),
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F32 => cx.type_f32(),
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F64 => cx.type_f64(),
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F128 => cx.type_f128(),
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Pointer(address_space) => {
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// If we know the alignment, pick something better than i8.
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let pointee =
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