diff options
Diffstat (limited to 'lib/Bitcode/Writer/BitcodeWriter.cpp')
| -rw-r--r-- | lib/Bitcode/Writer/BitcodeWriter.cpp | 43 |
1 files changed, 31 insertions, 12 deletions
diff --git a/lib/Bitcode/Writer/BitcodeWriter.cpp b/lib/Bitcode/Writer/BitcodeWriter.cpp index 6526b012d8..333d82ad4a 100644 --- a/lib/Bitcode/Writer/BitcodeWriter.cpp +++ b/lib/Bitcode/Writer/BitcodeWriter.cpp @@ -1157,19 +1157,38 @@ static void WriteInstruction(const Instruction &I, unsigned InstID, Vals64.push_back(SI.getNumCases()); for (SwitchInst::CaseIt i = SI.case_begin(), e = SI.case_end(); i != e; ++i) { - IntegersSubset CaseRanges = i.getCaseValueEx(); - Vals64.push_back(CaseRanges.getNumItems()); - for (unsigned ri = 0, rn = CaseRanges.getNumItems(); ri != rn; ++ri) { - IntegersSubset::Range r = CaseRanges.getItem(ri); - bool IsSingleNumber = r.isSingleNumber(); - - Vals64.push_back(IsSingleNumber); - - unsigned Code, Abbrev; // will unused. + IntegersSubset& CaseRanges = i.getCaseValueEx(); + unsigned Code, Abbrev; // will unused. + + if (CaseRanges.isSingleNumber()) { + Vals64.push_back(1/*NumItems = 1*/); + Vals64.push_back(true/*IsSingleNumber = true*/); + EmitAPInt(Vals64, Code, Abbrev, CaseRanges.getSingleNumber(0), true); + } else { + + Vals64.push_back(CaseRanges.getNumItems()); - EmitAPInt(Vals64, Code, Abbrev, r.getLow(), true); - if (!IsSingleNumber) - EmitAPInt(Vals64, Code, Abbrev, r.getHigh(), true); + if (CaseRanges.isSingleNumbersOnly()) { + for (unsigned ri = 0, rn = CaseRanges.getNumItems(); + ri != rn; ++ri) { + + Vals64.push_back(true/*IsSingleNumber = true*/); + + EmitAPInt(Vals64, Code, Abbrev, + CaseRanges.getSingleNumber(ri), true); + } + } else + for (unsigned ri = 0, rn = CaseRanges.getNumItems(); + ri != rn; ++ri) { + IntegersSubset::Range r = CaseRanges.getItem(ri); + bool IsSingleNumber = CaseRanges.isSingleNumber(ri); + + Vals64.push_back(IsSingleNumber); + + EmitAPInt(Vals64, Code, Abbrev, r.getLow(), true); + if (!IsSingleNumber) + EmitAPInt(Vals64, Code, Abbrev, r.getHigh(), true); + } } Vals64.push_back(VE.getValueID(i.getCaseSuccessor())); } |