Delete Default and JITDefault code models

IMHO it is an antipattern to have a enum value that is Default.

At any given piece of code it is not clear if we have to handle
Default or if has already been mapped to a concrete value. In this
case in particular, only the target can do the mapping and it is nice
to make sure it is always done.

This deletes the two default enum values of CodeModel and uses an
explicit Optional<CodeModel> when it is possible that it is
unspecified.

llvm-svn: 309911

1 files changed, 1 insertions, 1 deletions

diff --git a/llvm/lib/ExecutionEngine/ExecutionEngine.cpp b/llvm/lib/ExecutionEngine/ExecutionEngine.cpp
index 2ee72f9a8c1..c59885753a8 100644
--- a/llvm/lib/ExecutionEngine/ExecutionEngine.cpp
+++ b/llvm/lib/ExecutionEngine/ExecutionEngine.cpp
@@ -476,7 +476,7 @@ EngineBuilder::EngineBuilder() : EngineBuilder(nullptr) {}
 EngineBuilder::EngineBuilder(std::unique_ptr<Module> M)
     : M(std::move(M)), WhichEngine(EngineKind::Either), ErrorStr(nullptr),
       OptLevel(CodeGenOpt::Default), MemMgr(nullptr), Resolver(nullptr),
-      CMModel(CodeModel::JITDefault), UseOrcMCJITReplacement(false) {
+      UseOrcMCJITReplacement(false) {
 // IR module verification is enabled by default in debug builds, and disabled
 // by default in release builds.
 #ifndef NDEBUG