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Bitcode: Share logic for last instruction, NFC

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Share logic for getting the last instruction emitted.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225499 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan P. N. Exon Smith 2015-01-09 02:51:45 +00:00
parent 97bbaa3227
commit acec33834b
1 changed files with 10 additions and 14 deletions
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24
lib/Bitcode/Reader/BitcodeReader.cpp
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@ -2453,6 +2453,14 @@ std::error_code BitcodeReader::ParseFunctionBody(Function *F) {
unsigned CurBBNo = 0;
DebugLoc LastLoc;
auto getLastInstruction = [&]() -> Instruction * {
if (CurBB && !CurBB->empty())
return &CurBB->back();
else if (CurBBNo && FunctionBBs[CurBBNo - 1] &&
!FunctionBBs[CurBBNo - 1]->empty())
return &FunctionBBs[CurBBNo - 1]->back();
return nullptr;
};
// Read all the records.
SmallVector<uint64_t, 64> Record;
@ -2545,14 +2553,7 @@ std::error_code BitcodeReader::ParseFunctionBody(Function *F) {
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 = nullptr;
// 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();
I = getLastInstruction();
if (!I)
return Error(BitcodeError::InvalidRecord);
@ -2561,12 +2562,7 @@ std::error_code BitcodeReader::ParseFunctionBody(Function *F) {
continue;
case bitc::FUNC_CODE_DEBUG_LOC_OLD: { // DEBUG_LOC_OLD: [line,col,scope,ia]
I = nullptr; // 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();
I = getLastInstruction();
if (!I || Record.size() < 4)
return Error(BitcodeError::InvalidRecord);