[PATCH] D22897: Add EP_CGSCCOptimizerLate extension point to PassManagerBuilder

[Gor Nishanov via llvm-commits]

GorNishanov created this revision.
GorNishanov added reviewers: chandlerc, hfinkel.
GorNishanov added a subscriber: llvm-commits.
Herald added a subscriber: mehdi_amini.

EP_CGSCCOptimizerLate extension point allows adding CallGraphSCC passes at the end of the main CallGraphSCC passes and before any function simplification passes run by CGPassManager.

Upcoming patch: https://reviews.llvm.org/D22847 utilizes this extensions point.


https://reviews.llvm.org/D22897

Files:
  include/llvm/Transforms/IPO/PassManagerBuilder.h
  lib/Transforms/IPO/PassManagerBuilder.cpp

Index: lib/Transforms/IPO/PassManagerBuilder.cpp
===================================================================
--- lib/Transforms/IPO/PassManagerBuilder.cpp
+++ lib/Transforms/IPO/PassManagerBuilder.cpp
@@ -440,6 +440,7 @@
   if (OptLevel > 2)
     MPM.add(createArgumentPromotionPass()); // Scalarize uninlined fn args
 
+  addExtensionsToPM(EP_CGSCCOptimizerLate, MPM);
   addFunctionSimplificationPasses(MPM);
 
   // FIXME: This is a HACK! The inliner pass above implicitly creates a CGSCC
Index: include/llvm/Transforms/IPO/PassManagerBuilder.h
===================================================================
--- include/llvm/Transforms/IPO/PassManagerBuilder.h
+++ include/llvm/Transforms/IPO/PassManagerBuilder.h
@@ -100,6 +100,11 @@
     /// peephole optimizations similar to the instruction combiner. These passes
     /// will be inserted after each instance of the instruction combiner pass.
     EP_Peephole,
+
+    /// EP_CGSCCOptimizerLate - This extension point allows adding CallGraphSCC
+    /// passes at the end of the main CallGraphSCC passes and before any
+    /// function simplification passes run by CGPassManager.
+    EP_CGSCCOptimizerLate,
   };
 
   /// The Optimization Level - Specify the basic optimization level.


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