diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/CodeGen/MachineVerifier.cpp | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/MachineVerifier.cpp b/llvm/lib/CodeGen/MachineVerifier.cpp index 318776136e2..1c192815ab9 100644 --- a/llvm/lib/CodeGen/MachineVerifier.cpp +++ b/llvm/lib/CodeGen/MachineVerifier.cpp @@ -23,6 +23,7 @@ // the verifier errors. //===----------------------------------------------------------------------===// +#include "LiveRangeCalc.h" #include "llvm/ADT/BitVector.h" #include "llvm/ADT/DenseMap.h" #include "llvm/ADT/DenseSet.h" @@ -2116,6 +2117,13 @@ void MachineVerifier::verifyLiveRangeSegment(const LiveRange &LR, // Skip this block. ++MFI; } + + SmallVector<SlotIndex, 4> Undefs; + if (LaneMask.any()) { + LiveInterval &OwnerLI = LiveInts->getInterval(Reg); + OwnerLI.computeSubRangeUndefs(Undefs, LaneMask, *MRI, *Indexes); + } + while (true) { assert(LiveInts->isLiveInToMBB(LR, &*MFI)); // We don't know how to track physregs into a landing pad. @@ -2141,7 +2149,9 @@ void MachineVerifier::verifyLiveRangeSegment(const LiveRange &LR, // instruction with subregister intervals // only one of the subregisters (not necessarily the current one) needs to // be defined. - if (!PVNI && (LaneMask.none() || !IsPHI) ) { + if (!PVNI && (LaneMask.none() || !IsPHI)) { + if (LiveRangeCalc::isJointlyDominated(*PI, Undefs, *Indexes)) + continue; report("Register not marked live out of predecessor", *PI); report_context(LR, Reg, LaneMask); report_context(*VNI); |
