From: Rong Xu <xur@google.com>
Date: Mon, 23 Oct 2017 22:21:29 +0000 (+0000)
Subject: [PM] Add pgo-memop-opt pass to the new pass manager
X-Git-Tag: android-x86-7.1-r4~9413
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=2a01593233e991ce1dedcdd5463de0bdd1d6ca29;p=android-x86%2Fexternal-llvm.git

[PM] Add pgo-memop-opt pass to the new pass manager

This pass adds pgo-memop-opt pass to the new pass manager.
It is in the old pass manager but somehow left out in the new pass manager.

Differential Revision: http://reviews.llvm.org/D39145


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316384 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Passes/PassBuilder.cpp b/lib/Passes/PassBuilder.cpp
index c6ec97bdf6d..219c3835f47 100644
--- a/lib/Passes/PassBuilder.cpp
+++ b/lib/Passes/PassBuilder.cpp
@@ -362,6 +362,12 @@ PassBuilder::buildFunctionSimplificationPipeline(OptimizationLevel Level,
 
   invokePeepholeEPCallbacks(FPM, Level);
 
+  // For PGO use pipeline, try to optimize memory intrinsics such as memcpy
+  // using the size value profile. Don't perform this when optimizing for size.
+  if (PGOOpt && !PGOOpt->ProfileUseFile.empty() &&
+      !isOptimizingForSize(Level))
+    FPM.addPass(PGOMemOPSizeOpt());
+
   FPM.addPass(TailCallElimPass());
   FPM.addPass(SimplifyCFGPass());
 
diff --git a/test/Other/new-pm-pgo.ll b/test/Other/new-pm-pgo.ll
index 4a9d12484cd..5d6ed490250 100644
--- a/test/Other/new-pm-pgo.ll
+++ b/test/Other/new-pm-pgo.ll
@@ -11,6 +11,8 @@
 ;
 ; GEN: Running pass: PGOInstrumentationGen
 ; USE: Running pass: PGOInstrumentationUse
+; USE: Running pass: PGOIndirectCallPromotion
+; USE: Running pass: PGOMemOPSizeOpt
 ; SAMPLE_USE_O: Running pass: ModuleToFunctionPassAdaptor<{{.*}}AddDiscriminatorsPass{{.*}}>
 ; SAMPLE_USE_PRE_LINK: Running pass: ModuleToFunctionPassAdaptor<{{.*}}AddDiscriminatorsPass{{.*}}>
 ; SAMPLE_USE: Running pass: SimplifyCFGPass