diff options
Diffstat (limited to 'llvm/lib/CodeGen/SlotIndexes.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/SlotIndexes.cpp | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/llvm/lib/CodeGen/SlotIndexes.cpp b/llvm/lib/CodeGen/SlotIndexes.cpp index adab9ff3a5a..277cce3db88 100644 --- a/llvm/lib/CodeGen/SlotIndexes.cpp +++ b/llvm/lib/CodeGen/SlotIndexes.cpp @@ -127,8 +127,12 @@ bool SlotIndexes::runOnMachineFunction(MachineFunction &fn) { index += (Slots + 1) * SlotIndex::NUM; } - // One blank instruction at the end. - push_back(createEntry(0, index)); + // We insert two blank instructions between basic blocks. + // One to represent live-out registers and one to represent live-ins. + push_back(createEntry(0, index)); + index += SlotIndex::NUM; + + push_back(createEntry(0, index)); SlotIndex blockEndIndex(back(), SlotIndex::LOAD); mbb2IdxMap.insert( |
