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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
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@ -134,6 +134,7 @@ static unsigned GetEncodedOrdering(AtomicOrdering Ordering) {
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case AcquireRelease: return bitc::ORDERING_ACQREL;
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case SequentiallyConsistent: return bitc::ORDERING_SEQCST;
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}
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llvm_unreachable("Invalid ordering");
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}
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static unsigned GetEncodedSynchScope(SynchronizationScope SynchScope) {
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@ -141,6 +142,7 @@ static unsigned GetEncodedSynchScope(SynchronizationScope SynchScope) {
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case SingleThread: return bitc::SYNCHSCOPE_SINGLETHREAD;
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case CrossThread: return bitc::SYNCHSCOPE_CROSSTHREAD;
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}
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llvm_unreachable("Invalid synch scope");
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}
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static void WriteStringRecord(unsigned Code, StringRef Str,
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@ -372,6 +374,7 @@ static unsigned getEncodedLinkage(const GlobalValue *GV) {
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case GlobalValue::LinkerPrivateWeakLinkage: return 14;
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case GlobalValue::LinkerPrivateWeakDefAutoLinkage: return 15;
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}
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llvm_unreachable("Invalid linkage");
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}
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static unsigned getEncodedVisibility(const GlobalValue *GV) {
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@ -380,6 +383,7 @@ static unsigned getEncodedVisibility(const GlobalValue *GV) {
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case GlobalValue::HiddenVisibility: return 1;
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case GlobalValue::ProtectedVisibility: return 2;
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}
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llvm_unreachable("Invalid visibility");
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}
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// Emit top-level description of module, including target triple, inline asm,
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