From 3de3834d7086a6ea79a4a848f4e1c977e3075c72 Mon Sep 17 00:00:00 2001 From: Kristoffer Carlsson Date: Fri, 23 Mar 2018 13:40:41 +0100 Subject: [PATCH] enable the SLP Vectorizer optimization pass by default --- NEWS.md | 3 +++ src/jitlayers.cpp | 9 ++------- 2 files changed, 5 insertions(+), 7 deletions(-) diff --git a/NEWS.md b/NEWS.md index 1b8a039330f2a..ef2a5bd1a7839 100644 --- a/NEWS.md +++ b/NEWS.md @@ -653,6 +653,9 @@ Compiler/Runtime improvements * Inference now propagates constants inter-procedurally, and can compute various constants expressions at compile-time ([#24362]). + * The LLVM SLP Vectorizer optimization pass is now enabled at the default + optimization level. + Deprecated or removed --------------------- diff --git a/src/jitlayers.cpp b/src/jitlayers.cpp index 53ffaaaa8dab3..9db18f794cbdd 100644 --- a/src/jitlayers.cpp +++ b/src/jitlayers.cpp @@ -238,14 +238,9 @@ void addOptimizationPasses(legacy::PassManagerBase *PM, int opt_level, bool dump PM->add(createLoopIdiomPass()); PM->add(createLoopDeletionPass()); // Delete dead loops PM->add(createJumpThreadingPass()); // Thread jumps - - if (opt_level >= 3) { - PM->add(createSLPVectorizerPass()); // Vectorize straight-line code - } - + PM->add(createSLPVectorizerPass()); // Vectorize straight-line code PM->add(createAggressiveDCEPass()); // Delete dead instructions - if (opt_level >= 3) - PM->add(createInstructionCombiningPass()); // Clean up after SLP loop vectorizer + PM->add(createInstructionCombiningPass()); // Clean up after SLP loop vectorizer PM->add(createLoopVectorizePass()); // Vectorize loops PM->add(createInstructionCombiningPass()); // Clean up after loop vectorizer // LowerPTLS removes an indirect call. As a result, it is likely to trigger