From: Davide Italiano <davide@freebsd.org>
Date: Fri, 26 Aug 2016 15:22:59 +0000 (+0000)
Subject: [lib/LTO] Add an assertion to catch invalid opt levels.
X-Git-Tag: llvmorg-4.0.0-rc1~11406
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f8014f82edc54e81ed7b169c0d61891a95c3f07b;p=platform%2Fupstream%2Fllvm.git

[lib/LTO] Add an assertion to catch invalid opt levels.

llvm-svn: 279823
---

diff --git a/llvm/lib/LTO/LTOCodeGenerator.cpp b/llvm/lib/LTO/LTOCodeGenerator.cpp
index 1120ad8..7f3d30a 100644
--- a/llvm/lib/LTO/LTOCodeGenerator.cpp
+++ b/llvm/lib/LTO/LTOCodeGenerator.cpp
@@ -185,17 +185,18 @@ void LTOCodeGenerator::setOptLevel(unsigned Level) {
   switch (OptLevel) {
   case 0:
     CGOptLevel = CodeGenOpt::None;
-    break;
+    return;
   case 1:
     CGOptLevel = CodeGenOpt::Less;
-    break;
+    return;
   case 2:
     CGOptLevel = CodeGenOpt::Default;
-    break;
+    return;
   case 3:
     CGOptLevel = CodeGenOpt::Aggressive;
-    break;
+    return;
   }
+  llvm_unreachable("Unknown optimization level!");
 }
 
 bool LTOCodeGenerator::writeMergedModules(const char *Path) {