diff options
Diffstat (limited to 'lib/Bitcode/Reader/BitcodeReader.cpp')
| -rw-r--r-- | lib/Bitcode/Reader/BitcodeReader.cpp | 44 |
1 files changed, 42 insertions, 2 deletions
diff --git a/lib/Bitcode/Reader/BitcodeReader.cpp b/lib/Bitcode/Reader/BitcodeReader.cpp index 76d112e..69adead 100644 --- a/lib/Bitcode/Reader/BitcodeReader.cpp +++ b/lib/Bitcode/Reader/BitcodeReader.cpp @@ -1644,6 +1644,8 @@ bool BitcodeReader::ParseFunctionBody(Function *F) { BasicBlock *CurBB = 0; unsigned CurBBNo = 0; + DebugLoc LastLoc; + // Read all the records. SmallVector<uint64_t, 64> Record; while (1) { @@ -1699,6 +1701,46 @@ bool BitcodeReader::ParseFunctionBody(Function *F) { CurBB = FunctionBBs[0]; continue; + + case bitc::FUNC_CODE_DEBUG_LOC_AGAIN: // DEBUG_LOC_AGAIN + // This record indicates that the last instruction is at the same + // location as the previous instruction with a location. + I = 0; + + // Get the last instruction emitted. + if (CurBB && !CurBB->empty()) + I = &CurBB->back(); + else if (CurBBNo && FunctionBBs[CurBBNo-1] && + !FunctionBBs[CurBBNo-1]->empty()) + I = &FunctionBBs[CurBBNo-1]->back(); + + if (I == 0) return Error("Invalid DEBUG_LOC_AGAIN record"); + I->setDebugLoc(LastLoc); + I = 0; + continue; + + case bitc::FUNC_CODE_DEBUG_LOC: { // DEBUG_LOC: [line, col, scope, ia] + I = 0; // Get the last instruction emitted. + if (CurBB && !CurBB->empty()) + I = &CurBB->back(); + else if (CurBBNo && FunctionBBs[CurBBNo-1] && + !FunctionBBs[CurBBNo-1]->empty()) + I = &FunctionBBs[CurBBNo-1]->back(); + if (I == 0 || Record.size() < 4) + return Error("Invalid FUNC_CODE_DEBUG_LOC record"); + + unsigned Line = Record[0], Col = Record[1]; + unsigned ScopeID = Record[2], IAID = Record[3]; + + MDNode *Scope = 0, *IA = 0; + if (ScopeID) Scope = cast<MDNode>(MDValueList.getValueFwdRef(ScopeID-1)); + if (IAID) IA = cast<MDNode>(MDValueList.getValueFwdRef(IAID-1)); + LastLoc = DebugLoc::get(Line, Col, Scope, IA); + I->setDebugLoc(LastLoc); + I = 0; + continue; + } + case bitc::FUNC_CODE_INST_BINOP: { // BINOP: [opval, ty, opval, opcode] unsigned OpNum = 0; Value *LHS, *RHS; @@ -2285,8 +2327,6 @@ bool BitcodeReader::ParseFunctionBody(Function *F) { // See if anything took the address of blocks in this function. If so, // resolve them now. - /// BlockAddrFwdRefs - These are blockaddr references to basic blocks. These - /// are resolved lazily when functions are loaded. DenseMap<Function*, std::vector<BlockAddrRefTy> >::iterator BAFRI = BlockAddrFwdRefs.find(F); if (BAFRI != BlockAddrFwdRefs.end()) { |
