diff options
Diffstat (limited to 'source/slang/slang-ir-check-differentiability.cpp')
| -rw-r--r-- | source/slang/slang-ir-check-differentiability.cpp | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/source/slang/slang-ir-check-differentiability.cpp b/source/slang/slang-ir-check-differentiability.cpp index c750b2d3d..1ee94e67e 100644 --- a/source/slang/slang-ir-check-differentiability.cpp +++ b/source/slang/slang-ir-check-differentiability.cpp @@ -353,6 +353,17 @@ public: auto loop = as<IRLoop>(block->getTerminator()); if (!loop) continue; + bool hasBackEdge = false; + for (auto use = loop->getTargetBlock()->firstUse; use; use = use->nextUse) + { + if (use->getUser() != loop) + { + hasBackEdge = true; + break; + } + } + if (!hasBackEdge) + continue; if (loop->findDecoration<IRLoopMaxItersDecoration>() || loop->findDecoration<IRForceUnrollDecoration>()) { // We are good. |
