diff options
| author | Evan Cheng <evan.cheng@apple.com> | 2008-09-04 05:43:55 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2008-09-04 05:43:55 +0000 |
| commit | 90960280ee79987f53b4952793a867143145a36a (patch) | |
| tree | 6f5edc974cd87d748ea1100c43db65fbb6fb4e13 /lib | |
| parent | c2feb5c2622c132077b157c3056f8f1ffe0cf13b (diff) | |
| download | llvm-90960280ee79987f53b4952793a867143145a36a.tar.gz llvm-90960280ee79987f53b4952793a867143145a36a.tar.bz2 llvm-90960280ee79987f53b4952793a867143145a36a.tar.xz | |
Fix an overly strict assertion. Source register of a copy may not be killed, it may be killed by an implicit super-register use.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55762 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/CodeGen/VirtRegMap.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/CodeGen/VirtRegMap.cpp b/lib/CodeGen/VirtRegMap.cpp index 890ecf984c..4fd0ad44b0 100644 --- a/lib/CodeGen/VirtRegMap.cpp +++ b/lib/CodeGen/VirtRegMap.cpp @@ -1730,7 +1730,8 @@ void LocalSpiller::RewriteMBB(MachineBasicBlock &MBB, VirtRegMap &VRM) { SmallVector<unsigned, 2> KillRegs; InvalidateKills(MI, RegKills, KillOps, &KillRegs); if (MO.isDead() && !KillRegs.empty()) { - assert(KillRegs[0] == Dst); + // Source register or an implicit super-register use is killed. + assert(KillRegs[0] == Dst || TRI->isSubRegister(KillRegs[0], Dst)); // Last def is now dead. TransferDeadness(&MBB, Dist, Src, RegKills, KillOps); } |