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-rw-r--r--compiler/rustc_symbol_mangling/src/v0.rs5
1 files changed, 2 insertions, 3 deletions
diff --git a/compiler/rustc_symbol_mangling/src/v0.rs b/compiler/rustc_symbol_mangling/src/v0.rs
index 1de2ecbb700..9fb217d2f84 100644
--- a/compiler/rustc_symbol_mangling/src/v0.rs
+++ b/compiler/rustc_symbol_mangling/src/v0.rs
@@ -319,11 +319,10 @@ impl<'tcx> Printer<'tcx> for SymbolMangler<'tcx> {
             ty::Uint(UintTy::U64) => "y",
             ty::Uint(UintTy::U128) => "o",
             ty::Uint(UintTy::Usize) => "j",
-            // FIXME(f16_f128): update these once `rustc-demangle` supports the new types
-            ty::Float(FloatTy::F16) => unimplemented!("f16_f128"),
+            ty::Float(FloatTy::F16) => "C3f16",
             ty::Float(FloatTy::F32) => "f",
             ty::Float(FloatTy::F64) => "d",
-            ty::Float(FloatTy::F128) => unimplemented!("f16_f128"),
+            ty::Float(FloatTy::F128) => "C4f128",
             ty::Never => "z",
 
             // Placeholders (should be demangled as `_`).