diff options
Diffstat (limited to 'llvm_mode/compare-transform-pass.so.cc')
| -rw-r--r-- | llvm_mode/compare-transform-pass.so.cc | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/llvm_mode/compare-transform-pass.so.cc b/llvm_mode/compare-transform-pass.so.cc index 1ebc54d7..2f5eb341 100644 --- a/llvm_mode/compare-transform-pass.so.cc +++ b/llvm_mode/compare-transform-pass.so.cc @@ -438,9 +438,13 @@ bool CompareTransform::transformCmps(Module &M, const bool processStrcmp, for (uint64_t i = 0; i < constLen; i++) { - BasicBlock *cur_bb = next_bb; + BasicBlock * cur_bb = next_bb; + unsigned char c; - char c = isCaseInsensitive ? tolower(ConstStr[i]) : ConstStr[i]; + if (isCaseInsensitive) + c = (unsigned char)(tolower((int)ConstStr[i]) & 0xff); + else + c = (unsigned char)ConstStr[i]; BasicBlock::iterator IP = next_bb->getFirstInsertionPt(); IRBuilder<> IRB(&*IP); @@ -448,9 +452,11 @@ bool CompareTransform::transformCmps(Module &M, const bool processStrcmp, Value *v = ConstantInt::get(Int64Ty, i); Value *ele = IRB.CreateInBoundsGEP(VarStr, v, "empty"); Value *load = IRB.CreateLoad(ele); + if (isCaseInsensitive) { // load >= 'A' && load <= 'Z' ? load | 0x020 : load + load = IRB.CreateZExt(load, Int32Ty); std::vector<Value *> args; args.push_back(load); load = IRB.CreateCall(tolowerFn, args, "tmp"); |