summaryrefslogtreecommitdiff
path: root/compiler/optimizing/nodes.cc
diff options
context:
space:
mode:
Diffstat (limited to 'compiler/optimizing/nodes.cc')
-rw-r--r--compiler/optimizing/nodes.cc9
1 files changed, 9 insertions, 0 deletions
diff --git a/compiler/optimizing/nodes.cc b/compiler/optimizing/nodes.cc
index 60329ccff2..f4d3842ff9 100644
--- a/compiler/optimizing/nodes.cc
+++ b/compiler/optimizing/nodes.cc
@@ -734,6 +734,15 @@ bool HLoopInformation::HasBackEdgeNotDominatedByHeader() const {
return false;
}
+bool HLoopInformation::DominatesAllBackEdges(HBasicBlock* block) {
+ for (HBasicBlock* back_edge : GetBackEdges()) {
+ if (!block->Dominates(back_edge)) {
+ return false;
+ }
+ }
+ return true;
+}
+
bool HBasicBlock::Dominates(HBasicBlock* other) const {
// Walk up the dominator tree from `other`, to find out if `this`
// is an ancestor.