From 5d78dba6d9602bcf5b6fdc11de00477b125b45a7 Mon Sep 17 00:00:00 2001 From: Nadav Rotem Date: Tue, 3 Sep 2013 21:33:17 +0000 Subject: Enable late-vectorization by default. This patch changes the default setting for the LateVectorization flag that controls where the loop-vectorizer is ran. Perf gains: SingleSource/Benchmarks/Shootout/matrix -37.33% MultiSource/Benchmarks/PAQ8p/paq8p -22.83% SingleSource/Benchmarks/Linpack/linpack-pc -16.22% SingleSource/Benchmarks/Shootout-C++/ary3 -15.16% MultiSource/Benchmarks/TSVC/NodeSplitting-flt/NodeSplitting-flt -10.34% MultiSource/Benchmarks/TSVC/NodeSplitting-dbl/NodeSplitting-dbl -7.12% Regressions: SingleSource/Benchmarks/Misc/lowercase 15.10% MultiSource/Benchmarks/TSVC/Equivalencing-flt/Equivalencing-flt 13.18% SingleSource/Benchmarks/Shootout-C++/matrix 8.27% SingleSource/Benchmarks/CoyoteBench/lpbench 7.30% llvm-svn: 189858 --- llvm/lib/Transforms/IPO/PassManagerBuilder.cpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'llvm/lib/Transforms') diff --git a/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp b/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp index 395e3234ca9..2008c5d65ee 100644 --- a/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp +++ b/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp @@ -33,7 +33,7 @@ RunLoopVectorization("vectorize-loops", cl::desc("Run the Loop vectorization passes")); static cl::opt -LateVectorization("late-vectorize", cl::init(false), cl::Hidden, +LateVectorization("late-vectorize", cl::init(true), cl::Hidden, cl::desc("Run the vectorization pasess late in the pass " "pipeline (after the inliner)")); -- cgit v1.2.3