[PATCH] D78282: [Attributor][NFC][WIP] Increase the dependence recompute interval

[Johannes Doerfert via Phabricator via llvm-commits]

jdoerfert created this revision.
jdoerfert added reviewers: fhahn, lebedev.ri, uenoku, sstefan1.
Herald added subscribers: bollu, hiraditya.
Herald added a project: LLVM.

The flag determines how often we throw away dependence information and
start from scratch running all attributes. It does not change the
outcome but only the number of iterations and time it takes to get
there. Initial tests suggest compile time decreases with a higher
number.

TODO: Changes to the tests are missing.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D78282

Files:
  llvm/lib/Transforms/IPO/Attributor.cpp


Index: llvm/lib/Transforms/IPO/Attributor.cpp
===================================================================
--- llvm/lib/Transforms/IPO/Attributor.cpp
+++ llvm/lib/Transforms/IPO/Attributor.cpp
@@ -71,7 +71,7 @@
 static cl::opt<unsigned> DepRecInterval(
     "attributor-dependence-recompute-interval", cl::Hidden,
     cl::desc("Number of iterations until dependences are recomputed."),
-    cl::init(4));
+    cl::init(16));
 
 static cl::opt<bool> EnableHeapToStack("enable-heap-to-stack-conversion",
                                        cl::init(true), cl::Hidden);


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