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Remove unreachable code. (replace with llvm_unreachable to help GCC where necessary)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148284 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -61,6 +61,8 @@ static bool GetX86CpuIDAndInfo(unsigned value, unsigned *rEAX,
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*rECX = registers[2];
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*rEDX = registers[3];
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return false;
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#else
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return true;
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#endif
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#elif defined(i386) || defined(__i386__) || defined(__x86__) || defined(_M_IX86)
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#if defined(__GNUC__)
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@ -87,9 +89,14 @@ static bool GetX86CpuIDAndInfo(unsigned value, unsigned *rEAX,
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mov dword ptr [esi],edx
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}
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return false;
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// pedantic #else returns to appease -Wunreachable-code (so we don't generate
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// postprocessed code that looks like "return true; return false;")
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#else
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return true;
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#endif
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#endif
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#else
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return true;
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#endif
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}
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static void DetectX86FamilyModel(unsigned EAX, unsigned &Family,
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@ -1886,7 +1886,6 @@ Depends(DependenceKind Flavor, Instruction *Inst, const Value *Arg,
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}
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llvm_unreachable("Invalid dependence flavor");
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return true;
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}
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/// FindDependencies - Walk up the CFG from StartPos (which is in StartBB) and
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@ -249,7 +249,6 @@ unsigned llvm::GetSuccessorNumber(BasicBlock *BB, BasicBlock *Succ) {
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if (Term->getSuccessor(i) == Succ)
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return i;
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}
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return 0;
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}
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/// SplitEdge - Split the edge connecting specified block. Pass P must
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@ -59,7 +59,6 @@ unsigned llvm::getICmpCode(const ICmpInst *ICI, bool InvertPred) {
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// True -> 7
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default:
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llvm_unreachable("Invalid ICmp predicate!");
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return 0;
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}
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}
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@ -458,7 +458,6 @@ struct ConstantCreator<ConstantExpr, Type, ExprMapKeyType> {
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return new CompareConstantExpr(Ty, Instruction::FCmp, V.subclassdata,
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V.operands[0], V.operands[1]);
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llvm_unreachable("Invalid ConstantExpr!");
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return 0;
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}
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};
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@ -1092,8 +1092,7 @@ LLVMLinkage LLVMGetLinkage(LLVMValueRef Global) {
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return LLVMCommonLinkage;
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}
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// Should never get here.
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return static_cast<LLVMLinkage>(0);
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llvm_unreachable("Make GCC's unreachability happy");
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}
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void LLVMSetLinkage(LLVMValueRef Global, LLVMLinkage Linkage) {
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@ -166,8 +166,6 @@ const char *Instruction::getOpcodeName(unsigned OpCode) {
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default: return "<Invalid operator> ";
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}
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return 0;
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}
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/// isIdenticalTo - Return true if the specified instruction is exactly
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@ -526,6 +526,4 @@ int main(int argc, char **argv) {
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case AC_EDisassemble:
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return DisassembleInput(argv[0], true);
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}
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return 0;
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}
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@ -163,6 +163,4 @@ int main(int argc, char **argv) {
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case AC_Execute:
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return executeInput();
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}
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return 0;
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}
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@ -18,6 +18,7 @@
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#include "llvm/ADT/StringExtras.h"
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/Support/Debug.h"
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#include "llvm/Support/ErrorHandling.h"
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#include <set>
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#include <algorithm>
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using namespace llvm;
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@ -912,7 +913,7 @@ bool SDTypeConstraint::ApplyTypeConstraint(TreePatternNode *N,
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EnforceVectorSubVectorTypeIs(NodeToApply->getExtType(ResNo), TP);
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}
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}
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return false;
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llvm_unreachable("Make GCC's unreachability happy");
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}
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//===----------------------------------------------------------------------===//
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@ -102,7 +102,6 @@ static inline bool inheritsFrom(InstructionContext child,
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return false;
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default:
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llvm_unreachable("Unknown instruction class");
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return false;
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}
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}
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