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| author | Changpeng Fang <changpeng.fang@gmail.com> | 2017-03-07 23:29:36 +0000 |
|---|---|---|
| committer | Changpeng Fang <changpeng.fang@gmail.com> | 2017-03-07 23:29:36 +0000 |
| commit | 6b49fa4ca71433de71dcc2f31e4b381b91e608e1 (patch) | |
| tree | 699505013f39e30cfafe82fc5109740e87acb245 /llvm/lib/Target | |
| parent | fe9705149bfd53080256686ce7135db2b146f4cf (diff) | |
| download | bcm5719-llvm-6b49fa4ca71433de71dcc2f31e4b381b91e608e1.tar.gz bcm5719-llvm-6b49fa4ca71433de71dcc2f31e4b381b91e608e1.zip | |
AMDGPU/SI: Do not insert EndCf in an unreachable block
Reviewers:
arsenm
Differential Revision:
http://reviews.llvm.org/D22025
llvm-svn: 297243
Diffstat (limited to 'llvm/lib/Target')
| -rw-r--r-- | llvm/lib/Target/AMDGPU/SIAnnotateControlFlow.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/llvm/lib/Target/AMDGPU/SIAnnotateControlFlow.cpp b/llvm/lib/Target/AMDGPU/SIAnnotateControlFlow.cpp index fa4a03b8848..ae182bd947d 100644 --- a/llvm/lib/Target/AMDGPU/SIAnnotateControlFlow.cpp +++ b/llvm/lib/Target/AMDGPU/SIAnnotateControlFlow.cpp @@ -372,8 +372,9 @@ void SIAnnotateControlFlow::closeControlFlow(BasicBlock *BB) { } Value *Exec = popSaved(); - if (!isa<UndefValue>(Exec)) - CallInst::Create(EndCf, Exec, "", &*BB->getFirstInsertionPt()); + Instruction *FirstInsertionPt = &*BB->getFirstInsertionPt(); + if (!isa<UndefValue>(Exec) && !isa<UnreachableInst>(FirstInsertionPt)) + CallInst::Create(EndCf, Exec, "", FirstInsertionPt); } /// \brief Annotate the control flow with intrinsics so the backend can |
