diff options
| author | Jonas Paulsson <paulsson@linux.vnet.ibm.com> | 2019-11-19 13:15:12 +0100 |
|---|---|---|
| committer | Jonas Paulsson <paulsson@linux.vnet.ibm.com> | 2019-12-03 11:02:53 +0100 |
| commit | f8c0cfc24eab0f23e3ebc65b10ee4276b1f15eeb (patch) | |
| tree | 4c4d5b9f95f10dc82fb700c1db106a52a5c7d2ed /llvm/lib/CodeGen/ImplicitNullChecks.cpp | |
| parent | 4cfceb910692f9e894622da1b394324503667e46 (diff) | |
| download | bcm5719-llvm-f8c0cfc24eab0f23e3ebc65b10ee4276b1f15eeb.tar.gz bcm5719-llvm-f8c0cfc24eab0f23e3ebc65b10ee4276b1f15eeb.zip | |
ImplicitNullChecks: Don't add a dead definition of DepMI as live-in
This is one of the fixes needed to reapply D68267 which improves verification
of live-in lists.
Review: craig.topper
https://reviews.llvm.org/D70434
Diffstat (limited to 'llvm/lib/CodeGen/ImplicitNullChecks.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/ImplicitNullChecks.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/ImplicitNullChecks.cpp b/llvm/lib/CodeGen/ImplicitNullChecks.cpp index 4e54437947f..b3ca4c1d802 100644 --- a/llvm/lib/CodeGen/ImplicitNullChecks.cpp +++ b/llvm/lib/CodeGen/ImplicitNullChecks.cpp @@ -698,7 +698,7 @@ void ImplicitNullChecks::rewriteNullChecks( if (auto *DepMI = NC.getOnlyDependency()) { for (auto &MO : DepMI->operands()) { - if (!MO.isReg() || !MO.getReg() || !MO.isDef()) + if (!MO.isReg() || !MO.getReg() || !MO.isDef() || MO.isDead()) continue; if (!NC.getNotNullSucc()->isLiveIn(MO.getReg())) NC.getNotNullSucc()->addLiveIn(MO.getReg()); |
