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| author | Yong He <yonghe@outlook.com> | 2023-03-16 23:46:14 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-03-16 23:46:14 -0700 |
| commit | 9476d4543f4336a66308e55f722b0b0b2bd69dd2 (patch) | |
| tree | ff3a0514249f5c3975177bf053c5cb038e37acc8 /source/slang/slang-ir-dominators.cpp | |
| parent | 77d3630eef4ea1c4b0424a46526a6be476a89230 (diff) | |
Fix Phi simplification bug. (#2710)
* Fix Phi simplification bug.
* Fix up.
* Fix.
* Fix.
* Fix.
* Fix.
* Fix.
* Fix test.
* Fix test.
---------
Co-authored-by: Yong He <yhe@nvidia.com>
Diffstat (limited to 'source/slang/slang-ir-dominators.cpp')
| -rw-r--r-- | source/slang/slang-ir-dominators.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/source/slang/slang-ir-dominators.cpp b/source/slang/slang-ir-dominators.cpp index 5f606092b..e03ae9425 100644 --- a/source/slang/slang-ir-dominators.cpp +++ b/source/slang/slang-ir-dominators.cpp @@ -616,6 +616,9 @@ struct DominatorTreeComputationContext RefPtr<IRDominatorTree> createDominatorTree(IRGlobalValueWithCode* code) { + if (code->getFirstBlock() == nullptr) + return nullptr; + // We first run the Cooper et al. algorithm to compute the `doms` array // which encodes immediate dominators. // |