From 8dd96baddff3903a695a20d0e12ed92b3d2e435c Mon Sep 17 00:00:00 2001
From: Trevor Gross <tmgross@umich.edu>
Date: Wed, 28 Feb 2024 03:44:23 -0500
Subject: [PATCH] Add `f16` and `f128` to `rustc_type_ir::FloatTy` and
 `rustc_abi::Primitive`

Make changes necessary to support these types in the compiler.
---
 src/type_.rs   | 10 ++++++++++
 src/type_of.rs |  4 +++-
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/src/type_.rs b/src/type_.rs
index 7a89fe81d38..7e5aa1c1766 100644
--- a/src/type_.rs
+++ b/src/type_.rs
@@ -83,8 +83,10 @@ impl<'gcc, 'tcx> CodegenCx<'gcc, 'tcx> {
 
     pub fn type_float_from_ty(&self, t: ty::FloatTy) -> Type<'gcc> {
         match t {
+            ty::FloatTy::F16 => self.type_f16(),
             ty::FloatTy::F32 => self.type_f32(),
             ty::FloatTy::F64 => self.type_f64(),
+            ty::FloatTy::F128 => self.type_f128(),
         }
     }
 }
@@ -118,6 +120,10 @@ impl<'gcc, 'tcx> BaseTypeMethods<'tcx> for CodegenCx<'gcc, 'tcx> {
         self.isize_type
     }
 
+    fn type_f16(&self) -> Type<'gcc> {
+        unimplemented!("f16_f128")
+    }
+    
     fn type_f32(&self) -> Type<'gcc> {
         self.float_type
     }
@@ -125,6 +131,10 @@ impl<'gcc, 'tcx> BaseTypeMethods<'tcx> for CodegenCx<'gcc, 'tcx> {
     fn type_f64(&self) -> Type<'gcc> {
         self.double_type
     }
+    
+    fn type_f128(&self) -> Type<'gcc> {
+        unimplemented!("f16_f128")
+    }
 
     fn type_func(&self, params: &[Type<'gcc>], return_type: Type<'gcc>) -> Type<'gcc> {
         self.context.new_function_pointer_type(None, return_type, params, false)
diff --git a/src/type_of.rs b/src/type_of.rs
index 25149b80201..62136d24a2c 100644
--- a/src/type_of.rs
+++ b/src/type_of.rs
@@ -6,7 +6,7 @@ use rustc_middle::bug;
 use rustc_middle::ty::{self, Ty, TypeVisitableExt};
 use rustc_middle::ty::layout::{LayoutOf, TyAndLayout};
 use rustc_middle::ty::print::with_no_trimmed_paths;
-use rustc_target::abi::{self, Abi, Align, F32, F64, FieldsShape, Int, Integer, Pointer, PointeeInfo, Size, TyAbiInterface, Variants};
+use rustc_target::abi::{self, Abi, Align, F16, F128, F32, F64, FieldsShape, Int, Integer, Pointer, PointeeInfo, Size, TyAbiInterface, Variants};
 use rustc_target::abi::call::{CastTarget, FnAbi, Reg};
 
 use crate::abi::{FnAbiGcc, FnAbiGccExt, GccType};
@@ -257,8 +257,10 @@ impl<'tcx> LayoutGccExt<'tcx> for TyAndLayout<'tcx> {
         match scalar.primitive() {
             Int(i, true) => cx.type_from_integer(i),
             Int(i, false) => cx.type_from_unsigned_integer(i),
+            F16 => cx.type_f16(),
             F32 => cx.type_f32(),
             F64 => cx.type_f64(),
+            F128 => cx.type_f128(),
             Pointer(address_space) => {
                 // If we know the alignment, pick something better than i8.
                 let pointee =