commit 19025d17015fa8a1113ee78ce768013ee6b4970d
author Stuart Brady <stuart.brady@arm.com> Mon Jun 07 16:30:22 2021 +0100
committer Copybara-Service <copybara-worker@google.com> Thu Jul 29 15:05:03 2021 -0700
tree f9ab9df3664fbdb9d1d792bfe23ad8feb040dbf3
parent 9c5da03feb0279de3d61b1f76555317fa384a8d2

[demangler] Fix demangling of 'half'

Demangle 'Dh' as 'half' (as per GCC), and not 'decimal16' (which doesn't
make sense, as there is no IEEE 754 decimal16 format).

The Itanium C++ ABI specification describes 'Dh' as:
> IEEE 754r half-precision floating point (16 bits)

(https://itanium-cxx-abi.github.io/cxx-abi/abi.html#mangling-builtin)

Reviewed By: ldionne, jyknight

Differential Revision: https://reviews.llvm.org/D103833

GitOrigin-RevId: 87039c048c0cbc3d8cbba86187269b006bf2f373

src/demangle/ItaniumDemangle.h

diff --git a/src/demangle/ItaniumDemangle.h b/src/demangle/ItaniumDemangle.h
index 9e6ae75..36d5d1a 100644
--- a/src/demangle/ItaniumDemangle.h
+++ b/src/demangle/ItaniumDemangle.h
@@ -3883,7 +3883,7 @@
     //                ::= Dh   # IEEE 754r half-precision floating point (16 bits)
     case 'h':
       First += 2;
-      return make<NameType>("decimal16");
+      return make<NameType>("half");
     //                ::= Di   # char32_t
     case 'i':
       First += 2;