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-rw-r--r--compiler/rustc_codegen_llvm/src/back/write.rs10
-rw-r--r--compiler/rustc_codegen_llvm/src/builder.rs2
-rw-r--r--compiler/rustc_codegen_llvm/src/context.rs48
-rw-r--r--compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs36
-rw-r--r--compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs4
-rw-r--r--compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/mod.rs2
-rw-r--r--compiler/rustc_codegen_llvm/src/intrinsic.rs71
-rw-r--r--compiler/rustc_codegen_llvm/src/llvm/ffi.rs5
-rw-r--r--compiler/rustc_codegen_llvm/src/type_.rs15
-rw-r--r--compiler/rustc_codegen_llvm/src/type_of.rs4
10 files changed, 173 insertions, 24 deletions
diff --git a/compiler/rustc_codegen_llvm/src/back/write.rs b/compiler/rustc_codegen_llvm/src/back/write.rs
index 08aab849868..031bbd63361 100644
--- a/compiler/rustc_codegen_llvm/src/back/write.rs
+++ b/compiler/rustc_codegen_llvm/src/back/write.rs
@@ -519,12 +519,22 @@ pub(crate) unsafe fn llvm_optimize(
     let pgo_sample_use_path = get_pgo_sample_use_path(config);
     let is_lto = opt_stage == llvm::OptStage::ThinLTO || opt_stage == llvm::OptStage::FatLTO;
     let instr_profile_output_path = get_instr_profile_output_path(config);
+    let sanitize_dataflow_abilist: Vec<_> = config
+        .sanitizer_dataflow_abilist
+        .iter()
+        .map(|file| CString::new(file.as_str()).unwrap())
+        .collect();
+    let sanitize_dataflow_abilist_ptrs: Vec<_> =
+        sanitize_dataflow_abilist.iter().map(|file| file.as_ptr()).collect();
     // Sanitizer instrumentation is only inserted during the pre-link optimization stage.
     let sanitizer_options = if !is_lto {
         Some(llvm::SanitizerOptions {
             sanitize_address: config.sanitizer.contains(SanitizerSet::ADDRESS),
             sanitize_address_recover: config.sanitizer_recover.contains(SanitizerSet::ADDRESS),
             sanitize_cfi: config.sanitizer.contains(SanitizerSet::CFI),
+            sanitize_dataflow: config.sanitizer.contains(SanitizerSet::DATAFLOW),
+            sanitize_dataflow_abilist: sanitize_dataflow_abilist_ptrs.as_ptr(),
+            sanitize_dataflow_abilist_len: sanitize_dataflow_abilist_ptrs.len(),
             sanitize_kcfi: config.sanitizer.contains(SanitizerSet::KCFI),
             sanitize_memory: config.sanitizer.contains(SanitizerSet::MEMORY),
             sanitize_memory_recover: config.sanitizer_recover.contains(SanitizerSet::MEMORY),
diff --git a/compiler/rustc_codegen_llvm/src/builder.rs b/compiler/rustc_codegen_llvm/src/builder.rs
index 8cab2a3f27c..2110e62a9c4 100644
--- a/compiler/rustc_codegen_llvm/src/builder.rs
+++ b/compiler/rustc_codegen_llvm/src/builder.rs
@@ -568,7 +568,7 @@ impl<'a, 'll, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> {
                         }
                     }
                 }
-                abi::F32 | abi::F64 => {}
+                abi::F16 | abi::F32 | abi::F64 | abi::F128 => {}
             }
         }
 
diff --git a/compiler/rustc_codegen_llvm/src/context.rs b/compiler/rustc_codegen_llvm/src/context.rs
index 7dfcf1ab50e..16122e5557e 100644
--- a/compiler/rustc_codegen_llvm/src/context.rs
+++ b/compiler/rustc_codegen_llvm/src/context.rs
@@ -685,8 +685,10 @@ impl<'ll> CodegenCx<'ll, '_> {
         let t_i64 = self.type_i64();
         let t_i128 = self.type_i128();
         let t_isize = self.type_isize();
+        let t_f16 = self.type_f16();
         let t_f32 = self.type_f32();
         let t_f64 = self.type_f64();
+        let t_f128 = self.type_f128();
         let t_metadata = self.type_metadata();
         let t_token = self.type_token();
 
@@ -728,69 +730,115 @@ impl<'ll> CodegenCx<'ll, '_> {
         ifn!("llvm.debugtrap", fn() -> void);
         ifn!("llvm.frameaddress", fn(t_i32) -> ptr);
 
+        ifn!("llvm.powi.f16", fn(t_f16, t_i32) -> t_f16);
         ifn!("llvm.powi.f32", fn(t_f32, t_i32) -> t_f32);
         ifn!("llvm.powi.f64", fn(t_f64, t_i32) -> t_f64);
+        ifn!("llvm.powi.f128", fn(t_f128, t_i32) -> t_f128);
 
+        ifn!("llvm.pow.f16", fn(t_f16, t_f16) -> t_f16);
         ifn!("llvm.pow.f32", fn(t_f32, t_f32) -> t_f32);
         ifn!("llvm.pow.f64", fn(t_f64, t_f64) -> t_f64);
+        ifn!("llvm.pow.f128", fn(t_f128, t_f128) -> t_f128);
 
+        ifn!("llvm.sqrt.f16", fn(t_f16) -> t_f16);
         ifn!("llvm.sqrt.f32", fn(t_f32) -> t_f32);
         ifn!("llvm.sqrt.f64", fn(t_f64) -> t_f64);
+        ifn!("llvm.sqrt.f128", fn(t_f128) -> t_f128);
 
+        ifn!("llvm.sin.f16", fn(t_f16) -> t_f16);
         ifn!("llvm.sin.f32", fn(t_f32) -> t_f32);
         ifn!("llvm.sin.f64", fn(t_f64) -> t_f64);
+        ifn!("llvm.sin.f128", fn(t_f128) -> t_f128);
 
+        ifn!("llvm.cos.f16", fn(t_f16) -> t_f16);
         ifn!("llvm.cos.f32", fn(t_f32) -> t_f32);
         ifn!("llvm.cos.f64", fn(t_f64) -> t_f64);
+        ifn!("llvm.cos.f128", fn(t_f128) -> t_f128);
 
+        ifn!("llvm.exp.f16", fn(t_f16) -> t_f16);
         ifn!("llvm.exp.f32", fn(t_f32) -> t_f32);
         ifn!("llvm.exp.f64", fn(t_f64) -> t_f64);
+        ifn!("llvm.exp.f128", fn(t_f128) -> t_f128);
 
+        ifn!("llvm.exp2.f16", fn(t_f16) -> t_f16);
         ifn!("llvm.exp2.f32", fn(t_f32) -> t_f32);
         ifn!("llvm.exp2.f64", fn(t_f64) -> t_f64);
+        ifn!("llvm.exp2.f128", fn(t_f128) -> t_f128);
 
+        ifn!("llvm.log.f16", fn(t_f16) -> t_f16);
         ifn!("llvm.log.f32", fn(t_f32) -> t_f32);
         ifn!("llvm.log.f64", fn(t_f64) -> t_f64);
+        ifn!("llvm.log.f128", fn(t_f128) -> t_f128);
 
+        ifn!("llvm.log10.f16", fn(t_f16) -> t_f16);
         ifn!("llvm.log10.f32", fn(t_f32) -> t_f32);
         ifn!("llvm.log10.f64", fn(t_f64) -> t_f64);
+        ifn!("llvm.log10.f128", fn(t_f128) -> t_f128);
 
+        ifn!("llvm.log2.f16", fn(t_f16) -> t_f16);
         ifn!("llvm.log2.f32", fn(t_f32) -> t_f32);
         ifn!("llvm.log2.f64", fn(t_f64) -> t_f64);
+        ifn!("llvm.log2.f128", fn(t_f128) -> t_f128);
 
+        ifn!("llvm.fma.f16", fn(t_f16, t_f16, t_f16) -> t_f16);
         ifn!("llvm.fma.f32", fn(t_f32, t_f32, t_f32) -> t_f32);
         ifn!("llvm.fma.f64", fn(t_f64, t_f64, t_f64) -> t_f64);
+        ifn!("llvm.fma.f128", fn(t_f128, t_f128, t_f128) -> t_f128);
 
+        ifn!("llvm.fabs.f16", fn(t_f16) -> t_f16);
         ifn!("llvm.fabs.f32", fn(t_f32) -> t_f32);
         ifn!("llvm.fabs.f64", fn(t_f64) -> t_f64);
+        ifn!("llvm.fabs.f128", fn(t_f128) -> t_f128);
 
+        ifn!("llvm.minnum.f16", fn(t_f16, t_f16) -> t_f16);
         ifn!("llvm.minnum.f32", fn(t_f32, t_f32) -> t_f32);
         ifn!("llvm.minnum.f64", fn(t_f64, t_f64) -> t_f64);
+        ifn!("llvm.minnum.f128", fn(t_f128, t_f128) -> t_f128);
+
+        ifn!("llvm.maxnum.f16", fn(t_f16, t_f16) -> t_f16);
         ifn!("llvm.maxnum.f32", fn(t_f32, t_f32) -> t_f32);
         ifn!("llvm.maxnum.f64", fn(t_f64, t_f64) -> t_f64);
+        ifn!("llvm.maxnum.f128", fn(t_f128, t_f128) -> t_f128);
 
+        ifn!("llvm.floor.f16", fn(t_f16) -> t_f16);
         ifn!("llvm.floor.f32", fn(t_f32) -> t_f32);
         ifn!("llvm.floor.f64", fn(t_f64) -> t_f64);
+        ifn!("llvm.floor.f128", fn(t_f128) -> t_f128);
 
+        ifn!("llvm.ceil.f16", fn(t_f16) -> t_f16);
         ifn!("llvm.ceil.f32", fn(t_f32) -> t_f32);
         ifn!("llvm.ceil.f64", fn(t_f64) -> t_f64);
+        ifn!("llvm.ceil.f128", fn(t_f128) -> t_f128);
 
+        ifn!("llvm.trunc.f16", fn(t_f16) -> t_f16);
         ifn!("llvm.trunc.f32", fn(t_f32) -> t_f32);
         ifn!("llvm.trunc.f64", fn(t_f64) -> t_f64);
+        ifn!("llvm.trunc.f128", fn(t_f128) -> t_f128);
 
+        ifn!("llvm.copysign.f16", fn(t_f16, t_f16) -> t_f16);
         ifn!("llvm.copysign.f32", fn(t_f32, t_f32) -> t_f32);
         ifn!("llvm.copysign.f64", fn(t_f64, t_f64) -> t_f64);
+        ifn!("llvm.copysign.f128", fn(t_f128, t_f128) -> t_f128);
 
+        ifn!("llvm.round.f16", fn(t_f16) -> t_f16);
         ifn!("llvm.round.f32", fn(t_f32) -> t_f32);
         ifn!("llvm.round.f64", fn(t_f64) -> t_f64);
+        ifn!("llvm.round.f128", fn(t_f128) -> t_f128);
 
+        ifn!("llvm.roundeven.f16", fn(t_f16) -> t_f16);
         ifn!("llvm.roundeven.f32", fn(t_f32) -> t_f32);
         ifn!("llvm.roundeven.f64", fn(t_f64) -> t_f64);
+        ifn!("llvm.roundeven.f128", fn(t_f128) -> t_f128);
 
+        ifn!("llvm.rint.f16", fn(t_f16) -> t_f16);
         ifn!("llvm.rint.f32", fn(t_f32) -> t_f32);
         ifn!("llvm.rint.f64", fn(t_f64) -> t_f64);
+        ifn!("llvm.rint.f128", fn(t_f128) -> t_f128);
+
+        ifn!("llvm.nearbyint.f16", fn(t_f16) -> t_f16);
         ifn!("llvm.nearbyint.f32", fn(t_f32) -> t_f32);
         ifn!("llvm.nearbyint.f64", fn(t_f64) -> t_f64);
+        ifn!("llvm.nearbyint.f128", fn(t_f128) -> t_f128);
 
         ifn!("llvm.ctpop.i8", fn(t_i8) -> t_i8);
         ifn!("llvm.ctpop.i16", fn(t_i16) -> t_i16);
diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs
index 6116a6fd222..c45787f35aa 100644
--- a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs
+++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs
@@ -357,31 +357,27 @@ fn add_unused_functions(cx: &CodegenCx<'_, '_>) {
 
     let ignore_unused_generics = tcx.sess.instrument_coverage_except_unused_generics();
 
-    let eligible_def_ids: Vec<DefId> = tcx
-        .mir_keys(())
-        .iter()
-        .filter_map(|local_def_id| {
-            let def_id = local_def_id.to_def_id();
-            let kind = tcx.def_kind(def_id);
-            // `mir_keys` will give us `DefId`s for all kinds of things, not
-            // just "functions", like consts, statics, etc. Filter those out.
-            // If `ignore_unused_generics` was specified, filter out any
-            // generic functions from consideration as well.
-            if !matches!(kind, DefKind::Fn | DefKind::AssocFn | DefKind::Closure) {
-                return None;
-            }
-            if ignore_unused_generics && tcx.generics_of(def_id).requires_monomorphization(tcx) {
-                return None;
-            }
-            Some(local_def_id.to_def_id())
-        })
-        .collect();
+    let eligible_def_ids = tcx.mir_keys(()).iter().filter_map(|local_def_id| {
+        let def_id = local_def_id.to_def_id();
+        let kind = tcx.def_kind(def_id);
+        // `mir_keys` will give us `DefId`s for all kinds of things, not
+        // just "functions", like consts, statics, etc. Filter those out.
+        // If `ignore_unused_generics` was specified, filter out any
+        // generic functions from consideration as well.
+        if !matches!(kind, DefKind::Fn | DefKind::AssocFn | DefKind::Closure) {
+            return None;
+        }
+        if ignore_unused_generics && tcx.generics_of(def_id).requires_monomorphization(tcx) {
+            return None;
+        }
+        Some(local_def_id.to_def_id())
+    });
 
     let codegenned_def_ids = codegenned_and_inlined_items(tcx);
 
     // For each `DefId` that should have coverage instrumentation but wasn't
     // codegenned, add it to the function coverage map as an unused function.
-    for def_id in eligible_def_ids.into_iter().filter(|id| !codegenned_def_ids.contains(id)) {
+    for def_id in eligible_def_ids.filter(|id| !codegenned_def_ids.contains(id)) {
         // Skip any function that didn't have coverage data added to it by the
         // coverage instrumentor.
         let body = tcx.instance_mir(ty::InstanceDef::Item(def_id));
diff --git a/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs b/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs
index f961cd2d00b..1a5f9b42947 100644
--- a/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs
+++ b/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs
@@ -695,9 +695,13 @@ impl MsvcBasicName for ty::UintTy {
 
 impl MsvcBasicName for ty::FloatTy {
     fn msvc_basic_name(self) -> &'static str {
+        // FIXME: f16 and f128 have no MSVC representation. We could improve the debuginfo.
+        // See: <https://github.com/rust-lang/rust/pull/114607/files#r1454683264>
         match self {
+            ty::FloatTy::F16 => "half",
             ty::FloatTy::F32 => "float",
             ty::FloatTy::F64 => "double",
+            ty::FloatTy::F128 => "fp128",
         }
     }
 }
diff --git a/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/mod.rs b/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/mod.rs
index 7f671d1d061..657e9ce998f 100644
--- a/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/mod.rs
+++ b/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/mod.rs
@@ -122,8 +122,10 @@ fn tag_base_type<'ll, 'tcx>(
             // Niche tags are always normalized to unsized integers of the correct size.
             match tag.primitive() {
                 Primitive::Int(t, _) => t,
+                Primitive::F16 => Integer::I16,
                 Primitive::F32 => Integer::I32,
                 Primitive::F64 => Integer::I64,
+                Primitive::F128 => Integer::I128,
                 // FIXME(erikdesjardins): handle non-default addrspace ptr sizes
                 Primitive::Pointer(_) => {
                     // If the niche is the NULL value of a reference, then `discr_enum_ty` will be
diff --git a/compiler/rustc_codegen_llvm/src/intrinsic.rs b/compiler/rustc_codegen_llvm/src/intrinsic.rs
index e5de2f78376..f33a672aff0 100644
--- a/compiler/rustc_codegen_llvm/src/intrinsic.rs
+++ b/compiler/rustc_codegen_llvm/src/intrinsic.rs
@@ -28,51 +28,118 @@ fn get_simple_intrinsic<'ll>(
     name: Symbol,
 ) -> Option<(&'ll Type, &'ll Value)> {
     let llvm_name = match name {
+        sym::sqrtf16 => "llvm.sqrt.f16",
         sym::sqrtf32 => "llvm.sqrt.f32",
         sym::sqrtf64 => "llvm.sqrt.f64",
+        sym::sqrtf128 => "llvm.sqrt.f128",
+
+        sym::powif16 => "llvm.powi.f16",
         sym::powif32 => "llvm.powi.f32",
         sym::powif64 => "llvm.powi.f64",
+        sym::powif128 => "llvm.powi.f128",
+
+        sym::sinf16 => "llvm.sin.f16",
         sym::sinf32 => "llvm.sin.f32",
         sym::sinf64 => "llvm.sin.f64",
+        sym::sinf128 => "llvm.sin.f128",
+
+        sym::cosf16 => "llvm.cos.f16",
         sym::cosf32 => "llvm.cos.f32",
         sym::cosf64 => "llvm.cos.f64",
+        sym::cosf128 => "llvm.cos.f128",
+
+        sym::powf16 => "llvm.pow.f16",
         sym::powf32 => "llvm.pow.f32",
         sym::powf64 => "llvm.pow.f64",
+        sym::powf128 => "llvm.pow.f128",
+
+        sym::expf16 => "llvm.exp.f16",
         sym::expf32 => "llvm.exp.f32",
         sym::expf64 => "llvm.exp.f64",
+        sym::expf128 => "llvm.exp.f128",
+
+        sym::exp2f16 => "llvm.exp2.f16",
         sym::exp2f32 => "llvm.exp2.f32",
         sym::exp2f64 => "llvm.exp2.f64",
+        sym::exp2f128 => "llvm.exp2.f128",
+
+        sym::logf16 => "llvm.log.f16",
         sym::logf32 => "llvm.log.f32",
         sym::logf64 => "llvm.log.f64",
+        sym::logf128 => "llvm.log.f128",
+
+        sym::log10f16 => "llvm.log10.f16",
         sym::log10f32 => "llvm.log10.f32",
         sym::log10f64 => "llvm.log10.f64",
+        sym::log10f128 => "llvm.log10.f128",
+
+        sym::log2f16 => "llvm.log2.f16",
         sym::log2f32 => "llvm.log2.f32",
         sym::log2f64 => "llvm.log2.f64",
+        sym::log2f128 => "llvm.log2.f128",
+
+        sym::fmaf16 => "llvm.fma.f16",
         sym::fmaf32 => "llvm.fma.f32",
         sym::fmaf64 => "llvm.fma.f64",
+        sym::fmaf128 => "llvm.fma.f128",
+
+        sym::fabsf16 => "llvm.fabs.f16",
         sym::fabsf32 => "llvm.fabs.f32",
         sym::fabsf64 => "llvm.fabs.f64",
+        sym::fabsf128 => "llvm.fabs.f128",
+
+        sym::minnumf16 => "llvm.minnum.f16",
         sym::minnumf32 => "llvm.minnum.f32",
         sym::minnumf64 => "llvm.minnum.f64",
+        sym::minnumf128 => "llvm.minnum.f128",
+
+        sym::maxnumf16 => "llvm.maxnum.f16",
         sym::maxnumf32 => "llvm.maxnum.f32",
         sym::maxnumf64 => "llvm.maxnum.f64",
+        sym::maxnumf128 => "llvm.maxnum.f128",
+
+        sym::copysignf16 => "llvm.copysign.f16",
         sym::copysignf32 => "llvm.copysign.f32",
         sym::copysignf64 => "llvm.copysign.f64",
+        sym::copysignf128 => "llvm.copysign.f128",
+
+        sym::floorf16 => "llvm.floor.f16",
         sym::floorf32 => "llvm.floor.f32",
         sym::floorf64 => "llvm.floor.f64",
+        sym::floorf128 => "llvm.floor.f128",
+
+        sym::ceilf16 => "llvm.ceil.f16",
         sym::ceilf32 => "llvm.ceil.f32",
         sym::ceilf64 => "llvm.ceil.f64",
+        sym::ceilf128 => "llvm.ceil.f128",
+
+        sym::truncf16 => "llvm.trunc.f16",
         sym::truncf32 => "llvm.trunc.f32",
         sym::truncf64 => "llvm.trunc.f64",
+        sym::truncf128 => "llvm.trunc.f128",
+
+        sym::rintf16 => "llvm.rint.f16",
         sym::rintf32 => "llvm.rint.f32",
         sym::rintf64 => "llvm.rint.f64",
+        sym::rintf128 => "llvm.rint.f128",
+
+        sym::nearbyintf16 => "llvm.nearbyint.f16",
         sym::nearbyintf32 => "llvm.nearbyint.f32",
         sym::nearbyintf64 => "llvm.nearbyint.f64",
+        sym::nearbyintf128 => "llvm.nearbyint.f128",
+
+        sym::roundf16 => "llvm.round.f16",
         sym::roundf32 => "llvm.round.f32",
         sym::roundf64 => "llvm.round.f64",
+        sym::roundf128 => "llvm.round.f128",
+
         sym::ptr_mask => "llvm.ptrmask",
+
+        sym::roundevenf16 => "llvm.roundeven.f16",
         sym::roundevenf32 => "llvm.roundeven.f32",
         sym::roundevenf64 => "llvm.roundeven.f64",
+        sym::roundevenf128 => "llvm.roundeven.f128",
+
         _ => return None,
     };
     Some(cx.get_intrinsic(llvm_name))
@@ -163,11 +230,15 @@ impl<'ll, 'tcx> IntrinsicCallMethods<'tcx> for Builder<'_, 'll, 'tcx> {
                                     emit_va_arg(self, args[0], ret_ty)
                                 }
                             }
+                            Primitive::F16 => bug!("the va_arg intrinsic does not work with `f16`"),
                             Primitive::F64 | Primitive::Pointer(_) => {
                                 emit_va_arg(self, args[0], ret_ty)
                             }
                             // `va_arg` should never be used with the return type f32.
                             Primitive::F32 => bug!("the va_arg intrinsic does not work with `f32`"),
+                            Primitive::F128 => {
+                                bug!("the va_arg intrinsic does not work with `f128`")
+                            }
                         }
                     }
                     _ => bug!("the va_arg intrinsic does not work with non-scalar types"),
diff --git a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs
index 70fc7a66bcd..f4e83330874 100644
--- a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs
+++ b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs
@@ -480,6 +480,9 @@ pub struct SanitizerOptions {
     pub sanitize_address: bool,
     pub sanitize_address_recover: bool,
     pub sanitize_cfi: bool,
+    pub sanitize_dataflow: bool,
+    pub sanitize_dataflow_abilist: *const *const c_char,
+    pub sanitize_dataflow_abilist_len: size_t,
     pub sanitize_kcfi: bool,
     pub sanitize_memory: bool,
     pub sanitize_memory_recover: bool,
@@ -858,8 +861,10 @@ extern "C" {
     pub fn LLVMGetIntTypeWidth(IntegerTy: &Type) -> c_uint;
 
     // Operations on real types
+    pub fn LLVMHalfTypeInContext(C: &Context) -> &Type;
     pub fn LLVMFloatTypeInContext(C: &Context) -> &Type;
     pub fn LLVMDoubleTypeInContext(C: &Context) -> &Type;
+    pub fn LLVMFP128TypeInContext(C: &Context) -> &Type;
 
     // Operations on function types
     pub fn LLVMFunctionType<'a>(
diff --git a/compiler/rustc_codegen_llvm/src/type_.rs b/compiler/rustc_codegen_llvm/src/type_.rs
index 447c4ed1f0c..8f180bab3df 100644
--- a/compiler/rustc_codegen_llvm/src/type_.rs
+++ b/compiler/rustc_codegen_llvm/src/type_.rs
@@ -107,8 +107,10 @@ impl<'ll> CodegenCx<'ll, '_> {
 
     pub(crate) fn type_float_from_ty(&self, t: ty::FloatTy) -> &'ll Type {
         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(),
         }
     }
 
@@ -156,6 +158,10 @@ impl<'ll, 'tcx> BaseTypeMethods<'tcx> for CodegenCx<'ll, 'tcx> {
         self.isize_ty
     }
 
+    fn type_f16(&self) -> &'ll Type {
+        unsafe { llvm::LLVMHalfTypeInContext(self.llcx) }
+    }
+
     fn type_f32(&self) -> &'ll Type {
         unsafe { llvm::LLVMFloatTypeInContext(self.llcx) }
     }
@@ -164,6 +170,10 @@ impl<'ll, 'tcx> BaseTypeMethods<'tcx> for CodegenCx<'ll, 'tcx> {
         unsafe { llvm::LLVMDoubleTypeInContext(self.llcx) }
     }
 
+    fn type_f128(&self) -> &'ll Type {
+        unsafe { llvm::LLVMFP128TypeInContext(self.llcx) }
+    }
+
     fn type_func(&self, args: &[&'ll Type], ret: &'ll Type) -> &'ll Type {
         unsafe { llvm::LLVMFunctionType(ret, args.as_ptr(), args.len() as c_uint, False) }
     }
@@ -195,7 +205,7 @@ impl<'ll, 'tcx> BaseTypeMethods<'tcx> for CodegenCx<'ll, 'tcx> {
         match self.type_kind(ty) {
             TypeKind::Array | TypeKind::Vector => unsafe { llvm::LLVMGetElementType(ty) },
             TypeKind::Pointer => bug!("element_type is not supported for opaque pointers"),
-            other => bug!("element_type called on unsupported type {:?}", other),
+            other => bug!("element_type called on unsupported type {other:?}"),
         }
     }
 
@@ -205,11 +215,12 @@ impl<'ll, 'tcx> BaseTypeMethods<'tcx> for CodegenCx<'ll, 'tcx> {
 
     fn float_width(&self, ty: &'ll Type) -> usize {
         match self.type_kind(ty) {
+            TypeKind::Half => 16,
             TypeKind::Float => 32,
             TypeKind::Double => 64,
             TypeKind::X86_FP80 => 80,
             TypeKind::FP128 | TypeKind::PPC_FP128 => 128,
-            _ => bug!("llvm_float_width called on a non-float type"),
+            other => bug!("llvm_float_width called on a non-float type {other:?}"),
         }
     }
 
diff --git a/compiler/rustc_codegen_llvm/src/type_of.rs b/compiler/rustc_codegen_llvm/src/type_of.rs
index 219c7025311..369dcfb7b8f 100644
--- a/compiler/rustc_codegen_llvm/src/type_of.rs
+++ b/compiler/rustc_codegen_llvm/src/type_of.rs
@@ -8,7 +8,7 @@ use rustc_middle::ty::print::{with_no_trimmed_paths, with_no_visible_paths};
 use rustc_middle::ty::{self, Ty, TypeVisitableExt};
 use rustc_target::abi::HasDataLayout;
 use rustc_target::abi::{Abi, Align, FieldsShape};
-use rustc_target::abi::{Int, Pointer, F32, F64};
+use rustc_target::abi::{Int, Pointer, F128, F16, F32, F64};
 use rustc_target::abi::{Scalar, Size, Variants};
 use smallvec::{smallvec, SmallVec};
 
@@ -291,8 +291,10 @@ impl<'tcx> LayoutLlvmExt<'tcx> for TyAndLayout<'tcx> {
     fn scalar_llvm_type_at<'a>(&self, cx: &CodegenCx<'a, 'tcx>, scalar: Scalar) -> &'a Type {
         match scalar.primitive() {
             Int(i, _) => cx.type_from_integer(i),
+            F16 => cx.type_f16(),
             F32 => cx.type_f32(),
             F64 => cx.type_f64(),
+            F128 => cx.type_f128(),
             Pointer(address_space) => cx.type_ptr_ext(address_space),
         }
     }