1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/MachineVerifier.cpp b/llvm/lib/CodeGen/MachineVerifier.cpp
index d39733be6c4..22990e3d5d7 100644
--- a/llvm/lib/CodeGen/MachineVerifier.cpp
+++ b/llvm/lib/CodeGen/MachineVerifier.cpp
@@ -1573,7 +1573,8 @@ void MachineVerifier::verifyLiveRangeSegment(const LiveRange &LR,
       if (!hasRead) {
         // When tracking subregister liveness, the main range must start new
         // values on partial register writes, even if there is no read.
-        if (!MRI->tracksSubRegLiveness() || LaneMask != 0 || !hasSubRegDef) {
+        if (!MRI->shouldTrackSubRegLiveness(Reg) || LaneMask != 0 ||
+            !hasSubRegDef) {
           report("Instruction ending live segment doesn't read the register",
                  MI);
           errs() << S << " in " << LR << '\n';