commit ce16339930a2b03e53b4e6399ef59c092a7f2cfa
author Dan Gohman <gohman@apple.com> Sat Dec 17 00:04:22 2011 +0000
committer Dan Gohman <gohman@apple.com> Sat Dec 17 00:04:22 2011 +0000
tree 8265888014a73aa5764f99d7b6bb0553066f78bc
parent 2e1b0c0cd9fab8f1841e1039cf39dcceeba70f73

The powers that be have decided that LLVM IR should now support 16-bit
"half precision" floating-point with a first-class type.

This patch adds basic IR support (but not codegen support).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146786 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Bitcode/Writer/BitcodeWriter.cpp

diff --git a/lib/Bitcode/Writer/BitcodeWriter.cpp b/lib/Bitcode/Writer/BitcodeWriter.cpp
index d980163..f890786 100644
--- a/lib/Bitcode/Writer/BitcodeWriter.cpp
+++ b/lib/Bitcode/Writer/BitcodeWriter.cpp
@@ -266,6 +266,7 @@
     switch (T->getTypeID()) {
     default: llvm_unreachable("Unknown type!");
     case Type::VoidTyID:      Code = bitc::TYPE_CODE_VOID;   break;
+    case Type::HalfTyID:      Code = bitc::TYPE_CODE_HALF;   break;
     case Type::FloatTyID:     Code = bitc::TYPE_CODE_FLOAT;  break;
     case Type::DoubleTyID:    Code = bitc::TYPE_CODE_DOUBLE; break;
     case Type::X86_FP80TyID:  Code = bitc::TYPE_CODE_X86_FP80; break;
@@ -826,7 +827,7 @@
     } else if (const ConstantFP *CFP = dyn_cast<ConstantFP>(C)) {
       Code = bitc::CST_CODE_FLOAT;
       Type *Ty = CFP->getType();
-      if (Ty->isFloatTy() || Ty->isDoubleTy()) {
+      if (Ty->isHalfTy() || Ty->isFloatTy() || Ty->isDoubleTy()) {
         Record.push_back(CFP->getValueAPF().bitcastToAPInt().getZExtValue());
       } else if (Ty->isX86_FP80Ty()) {
         // api needed to prevent premature destruction