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Add f16 and f128 to rustc_type_ir::FloatTy and rustc_abi::Primitive

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Make changes necessary to support these types in the compiler.
This commit is contained in:
Trevor Gross
2024-02-28 03:44:23 -05:00
parent ef324565d0
commit e3f63d9375
31 changed files with 107 additions and 14 deletions
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12
compiler/rustc_abi/src/lib.rs
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@@ -171,8 +171,10 @@ pub struct TargetDataLayout {
pub i32_align: AbiAndPrefAlign,
pub i64_align: AbiAndPrefAlign,
pub i128_align: AbiAndPrefAlign,
pub f16_align: AbiAndPrefAlign,
pub f32_align: AbiAndPrefAlign,
pub f64_align: AbiAndPrefAlign,
pub f128_align: AbiAndPrefAlign,
pub pointer_size: Size,
pub pointer_align: AbiAndPrefAlign,
pub aggregate_align: AbiAndPrefAlign,
@@ -200,8 +202,10 @@ impl Default for TargetDataLayout {
i32_align: AbiAndPrefAlign::new(align(32)),
i64_align: AbiAndPrefAlign { abi: align(32), pref: align(64) },
i128_align: AbiAndPrefAlign { abi: align(32), pref: align(64) },
f16_align: AbiAndPrefAlign::new(align(16)),
f32_align: AbiAndPrefAlign::new(align(32)),
f64_align: AbiAndPrefAlign::new(align(64)),
f128_align: AbiAndPrefAlign::new(align(128)),
pointer_size: Size::from_bits(64),
pointer_align: AbiAndPrefAlign::new(align(64)),
aggregate_align: AbiAndPrefAlign { abi: align(0), pref: align(64) },
@@ -281,8 +285,10 @@ impl TargetDataLayout {
dl.instruction_address_space = parse_address_space(&p[1..], "P")?
}
["a", ref a @ ..] => dl.aggregate_align = parse_align(a, "a")?,
["f16", ref a @ ..] => dl.f16_align = parse_align(a, "f16")?,
["f32", ref a @ ..] => dl.f32_align = parse_align(a, "f32")?,
["f64", ref a @ ..] => dl.f64_align = parse_align(a, "f64")?,
["f128", ref a @ ..] => dl.f128_align = parse_align(a, "f128")?,
// FIXME(erikdesjardins): we should be parsing nonzero address spaces
// this will require replacing TargetDataLayout::{pointer_size,pointer_align}
// with e.g. `fn pointer_size_in(AddressSpace)`
@@ -919,8 +925,10 @@ pub enum Primitive {
/// a negative integer passed by zero-extension will appear positive in
/// the callee, and most operations on it will produce the wrong values.
Int(Integer, bool),
F16,
F32,
F64,
F128,
Pointer(AddressSpace),
}
@@ -931,8 +939,10 @@ impl Primitive {
match self {
Int(i, _) => i.size(),
F16 => Size::from_bits(16),
F32 => Size::from_bits(32),
F64 => Size::from_bits(64),
F128 => Size::from_bits(128),
// FIXME(erikdesjardins): ignoring address space is technically wrong, pointers in
// different address spaces can have different sizes
// (but TargetDataLayout doesn't currently parse that part of the DL string)
@@ -946,8 +956,10 @@ impl Primitive {
match self {
Int(i, _) => i.align(dl),
F16 => dl.f16_align,
F32 => dl.f32_align,
F64 => dl.f64_align,
F128 => dl.f128_align,
// FIXME(erikdesjardins): ignoring address space is technically wrong, pointers in
// different address spaces can have different alignments
// (but TargetDataLayout doesn't currently parse that part of the DL string)