diff options
| author | Evan Cheng <evan.cheng@apple.com> | 2010-04-28 23:52:26 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2010-04-28 23:52:26 +0000 |
| commit | 6691a8935c9f2e049ff5eed45ba2894f60108909 (patch) | |
| tree | 3e9b6b0e6ee05b1ecd5cab5a9f0724787066cd1a /lib/CodeGen/LiveIntervalAnalysis.cpp | |
| parent | f38c6c89f1137f54adb76bb375b15ff0ec3a925a (diff) | |
- Really preserve dbg_value instructions when the register is spilled.
- Also, update dbg_value is the value is being re-matted from a frame slot, e.g. fixed slots for arguments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102565 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/LiveIntervalAnalysis.cpp')
| -rw-r--r-- | lib/CodeGen/LiveIntervalAnalysis.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp index bd8a54cc22..7a2feeacab 100644 --- a/lib/CodeGen/LiveIntervalAnalysis.cpp +++ b/lib/CodeGen/LiveIntervalAnalysis.cpp @@ -1297,11 +1297,12 @@ rewriteInstructionsForSpills(const LiveInterval &li, bool TrySplit, ++ri; if (MI->isDebugValue()) { // Modify DBG_VALUE now that the value is in a spill slot. - if (Slot == VirtRegMap::NO_STACK_SLOT) { + if (Slot != VirtRegMap::MAX_STACK_SLOT || isLoadSS) { uint64_t Offset = MI->getOperand(1).getImm(); const MDNode *MDPtr = MI->getOperand(2).getMetadata(); DebugLoc DL = MI->getDebugLoc(); - if (MachineInstr *NewDV = tii_->emitFrameIndexDebugValue(*mf_, Slot, + int FI = isLoadSS ? LdSlot : (int)Slot; + if (MachineInstr *NewDV = tii_->emitFrameIndexDebugValue(*mf_, FI, Offset, MDPtr, DL)) { DEBUG(dbgs() << "Modifying debug info due to spill:" << "\t" << *MI); ReplaceMachineInstrInMaps(MI, NewDV); |