Step 1 of 2: conditional passes.
Rationale:
The change adds a return value to Run() in preparation of
conditional pass execution. The value returned by Run() is
best effort, returning false means no optimizations were
applied or no useful information was obtained. I filled
in a few cases with more exact information, others
still just return true. In addition, it integrates inlining
as a regular pass, avoiding the ugly "break" into
optimizations1 and optimziations2.
Bug: b/78171933, b/74026074
Test: test-art-host,target
Change-Id: Ia39c5c83c01dcd79841e4b623917d61c754cf075
diff --git a/compiler/optimizing/constant_folding.cc b/compiler/optimizing/constant_folding.cc
index 6f11e62..bb78c23 100644
--- a/compiler/optimizing/constant_folding.cc
+++ b/compiler/optimizing/constant_folding.cc
@@ -68,13 +68,14 @@
};
-void HConstantFolding::Run() {
+bool HConstantFolding::Run() {
HConstantFoldingVisitor visitor(graph_);
// Process basic blocks in reverse post-order in the dominator tree,
// so that an instruction turned into a constant, used as input of
// another instruction, may possibly be used to turn that second
// instruction into a constant as well.
visitor.VisitReversePostOrder();
+ return true;
}