diff options
| author | Chandler Carruth <chandlerc@gmail.com> | 2012-01-10 18:08:01 +0000 |
|---|---|---|
| committer | Chandler Carruth <chandlerc@gmail.com> | 2012-01-10 18:08:01 +0000 |
| commit | 732f05c41f177a0bc4d47e93a5d02120f146cb4c (patch) | |
| tree | bdc90d2b58b83e7c4936cc92c152e1cb7ea34056 /lib/Bitcode | |
| parent | 38fdb7d9fc40e9f29c3156b6625cac8d91d562e1 (diff) | |
Add 'llvm_unreachable' to passify GCC's understanding of the constraints
of several newly un-defaulted switches. This also helps optimizers
(including LLVM's) recognize that every case is covered, and we should
assume as much.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147861 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Bitcode')
| -rw-r--r-- | lib/Bitcode/Writer/BitcodeWriter.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Bitcode/Writer/BitcodeWriter.cpp b/lib/Bitcode/Writer/BitcodeWriter.cpp index a9104ea00a..b6da85e295 100644 --- a/lib/Bitcode/Writer/BitcodeWriter.cpp +++ b/lib/Bitcode/Writer/BitcodeWriter.cpp @@ -134,6 +134,7 @@ static unsigned GetEncodedOrdering(AtomicOrdering Ordering) { case AcquireRelease: return bitc::ORDERING_ACQREL; case SequentiallyConsistent: return bitc::ORDERING_SEQCST; } + llvm_unreachable("Invalid ordering"); } static unsigned GetEncodedSynchScope(SynchronizationScope SynchScope) { @@ -141,6 +142,7 @@ static unsigned GetEncodedSynchScope(SynchronizationScope SynchScope) { case SingleThread: return bitc::SYNCHSCOPE_SINGLETHREAD; case CrossThread: return bitc::SYNCHSCOPE_CROSSTHREAD; } + llvm_unreachable("Invalid synch scope"); } static void WriteStringRecord(unsigned Code, StringRef Str, @@ -372,6 +374,7 @@ static unsigned getEncodedLinkage(const GlobalValue *GV) { case GlobalValue::LinkerPrivateWeakLinkage: return 14; case GlobalValue::LinkerPrivateWeakDefAutoLinkage: return 15; } + llvm_unreachable("Invalid linkage"); } static unsigned getEncodedVisibility(const GlobalValue *GV) { @@ -380,6 +383,7 @@ static unsigned getEncodedVisibility(const GlobalValue *GV) { case GlobalValue::HiddenVisibility: return 1; case GlobalValue::ProtectedVisibility: return 2; } + llvm_unreachable("Invalid visibility"); } // Emit top-level description of module, including target triple, inline asm, |