diff options
| author | Kazu Hirata <kazu@google.com> | 2020-04-07 17:41:50 -0700 |
|---|---|---|
| committer | Kazu Hirata <kazu@google.com> | 2020-04-07 18:37:36 -0700 |
| commit | 91eb442fdef0aacb996442042d2eeed52d71270b (patch) | |
| tree | dcd12c72f9f4f750a757dd9f88f2a5b389cec6f5 /llvm/tools/llvm-objdump/llvm-objdump.cpp | |
| parent | 09f345080edbc914e2d864e9ccf50c94d90d35c5 (diff) | |
| download | llvm-91eb442fdef0aacb996442042d2eeed52d71270b.zip llvm-91eb442fdef0aacb996442042d2eeed52d71270b.tar.gz llvm-91eb442fdef0aacb996442042d2eeed52d71270b.tar.bz2 | |
[JumpThreading] NFC: Simplify ComputeValueKnownInPredecessorsImpl
Summary:
ComputeValueKnownInPredecessorsImpl is the main folding mechanism in
JumpThreading.cpp. To avoid potential infinite recursion while
chasing use-def chains, it uses:
DenseSet<std::pair<Value *, BasicBlock *>> &RecursionSet
to keep track of Value-BB pairs that we've processed.
Now, when ComputeValueKnownInPredecessorsImpl recursively calls
itself, it always passes BB as is, so the second element is always BB.
This patch simplifes the function by dropping "BasicBlock *" from
RecursionSet.
Reviewers: wmi, efriedma
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D77699
Diffstat (limited to 'llvm/tools/llvm-objdump/llvm-objdump.cpp')
0 files changed, 0 insertions, 0 deletions