diff options
| -rw-r--r-- | lib/CodeGen/MachineLICM.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/CodeGen/MachineLICM.cpp b/lib/CodeGen/MachineLICM.cpp index 83f66ce094..9409d88baf 100644 --- a/lib/CodeGen/MachineLICM.cpp +++ b/lib/CodeGen/MachineLICM.cpp @@ -488,13 +488,14 @@ void MachineLICM::HoistRegion(MachineDomTreeNode *N) { MII = NextMII; } - const std::vector<MachineDomTreeNode*> &Children = N->getChildren(); // Don't hoist things out of a large switch statement. This often causes // code to be hoisted that wasn't going to be executed, and increases // register pressure in a situation where it's likely to matter. - if (Children.size() < 10) + if (BB->succ_size() < 25) { + const std::vector<MachineDomTreeNode*> &Children = N->getChildren(); for (unsigned I = 0, E = Children.size(); I != E; ++I) HoistRegion(Children[I]); + } } /// IsLICMCandidate - Returns true if the instruction may be a suitable |