[PATCH] D81682: [PGO] Extend the value profile buckets for mem op sizes.

[Hiroshi Yamauchi via Phabricator via llvm-commits]

yamauchi added a comment.

> This is with clang trying to PGO itself. Build with `-DLLVM_BUILD_INSTRUMENTED=IR -DLLVM_BUILD_RUNTIME=No` and use the result to build the LLVM tree again.
>
> https://treeherder.mozilla.org/logviewer.html#/jobs?job_id=318445929&repo=ash&lineNumber=17322

It seems that I can't reproduce it. Here's my script. Can you reproduce with it or modify it so it reproduces?

  # cd into the root directory "llvm-project"
  LLVMROOT=`pwd`
  
  rm -rf $LLVMROOT/clang-bootstrap
  mkdir $LLVMROOT/clang-bootstrap
  STAGE1=$LLVMROOT/clang-bootstrap/stage1
  STAGE2_PROF_GEN=$LLVMROOT/clang-bootstrap/stage2-prof-gen
  STAGE2_TRAIN=$LLVMROOT/clang-bootstrap/stage2-train
  
  CMAKE="cmake -G Ninja $LLVMROOT/llvm -DLLVM_ENABLE_PROJECTS=clang;compiler-rt -DLLVM_TARGETS_TO_BUILD=X86 -DCMAKE_BUILD_TYPE=Release -DLLVM_PARALLEL_LINK_JOBS=6"
  
  mkdir $STAGE1
  cd $STAGE1
  $CMAKE -DCMAKE_C_COMPILER=gcc -DCMAKE_CXX_COMPILER=g++ \
    -DCMAKE_INSTALL_PREFIX=$STAGE1/install
  ninja install -v
  
  mkdir -p $STAGE2_PROF_GEN
  cd $STAGE2_PROF_GEN
  $CMAKE -DCMAKE_C_COMPILER=$STAGE1/install/bin/clang \
    -DCMAKE_CXX_COMPILER=$STAGE1/install/bin/clang++ \
    -DLLVM_BUILD_INSTRUMENTED=IR \
    -DLLVM_BUILD_RUNTIME=No \
    -DCMAKE_INSTALL_PREFIX=$STAGE2_PROF_GEN/install
  ninja install -v
  
  mkdir $STAGE2_TRAIN
  cd $STAGE2_TRAIN
  $CMAKE -DCMAKE_C_COMPILER=$STAGE2_PROF_GEN/install/bin/clang \
    -DCMAKE_CXX_COMPILER=$STAGE2_PROF_GEN/install/bin/clang++ \
    -DCMAKE_INSTALL_PREFIX=$STAGE2_TRAIN/install
  ninja -v


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D81682/new/

https://reviews.llvm.org/D81682