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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-10-06 23:54:35 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-10-06 23:54:35 +0000 |
| commit | 893ab5d7014dd112fb111a67504bd556be9bd393 (patch) | |
| tree | e09103df888fc182f6ae61a195edb66cb3fefe53 | |
| parent | c44c245d0cd70d6932eddd069c4e95c2754b7fd8 (diff) | |
Skip unused registers when verifying LiveIntervals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115874 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/CodeGen/MachineVerifier.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/CodeGen/MachineVerifier.cpp b/lib/CodeGen/MachineVerifier.cpp index 5660e48b8e..644e3c06da 100644 --- a/lib/CodeGen/MachineVerifier.cpp +++ b/lib/CodeGen/MachineVerifier.cpp @@ -884,6 +884,11 @@ void MachineVerifier::verifyLiveIntervals() { for (LiveIntervals::const_iterator LVI = LiveInts->begin(), LVE = LiveInts->end(); LVI != LVE; ++LVI) { const LiveInterval &LI = *LVI->second; + + // Spilling and splitting may leave unused registers around. Skip them. + if (MRI->use_empty(LI.reg)) + continue; + assert(LVI->first == LI.reg && "Invalid reg to interval mapping"); for (LiveInterval::const_vni_iterator I = LI.vni_begin(), E = LI.vni_end(); |