From 535efab2e533f98a96df31b116b5861b5e29d32d Mon Sep 17 00:00:00 2001 From: Sjoerd Meijer Date: Thu, 15 Aug 2019 06:24:40 +0000 Subject: [Clang] Pragma vectorize_predicate implies vectorize New pragma "vectorize_predicate(enable)" now implies "vectorize(enable)", and it is ignored when vectorization is disabled with e.g. "vectorize(disable) vectorize_predicate(enable)". Differential Revision: https://reviews.llvm.org/D65776 llvm-svn: 368970 --- clang/lib/CodeGen/CGLoopInfo.cpp | 21 +++++++++++++++------ 1 file changed, 15 insertions(+), 6 deletions(-) (limited to 'clang/lib/CodeGen/CGLoopInfo.cpp') diff --git a/clang/lib/CodeGen/CGLoopInfo.cpp b/clang/lib/CodeGen/CGLoopInfo.cpp index 8e4a0a2a9b5..c51efdc5d11 100644 --- a/clang/lib/CodeGen/CGLoopInfo.cpp +++ b/clang/lib/CodeGen/CGLoopInfo.cpp @@ -253,12 +253,18 @@ LoopInfo::createLoopVectorizeMetadata(const LoopAttributes &Attrs, Args.append(LoopProperties.begin(), LoopProperties.end()); // Setting vectorize.predicate - if (Attrs.VectorizePredicateEnable != LoopAttributes::Unspecified) { + bool IsVectorPredicateEnabled = false; + if (Attrs.VectorizePredicateEnable != LoopAttributes::Unspecified && + Attrs.VectorizeEnable != LoopAttributes::Disable && + Attrs.VectorizeWidth < 1) { + + IsVectorPredicateEnabled = + (Attrs.VectorizePredicateEnable == LoopAttributes::Enable); + Metadata *Vals[] = { MDString::get(Ctx, "llvm.loop.vectorize.predicate.enable"), - ConstantAsMetadata::get(ConstantInt::get( - llvm::Type::getInt1Ty(Ctx), - (Attrs.VectorizePredicateEnable == LoopAttributes::Enable)))}; + ConstantAsMetadata::get(ConstantInt::get(llvm::Type::getInt1Ty(Ctx), + IsVectorPredicateEnabled))}; Args.push_back(MDNode::get(Ctx, Vals)); } @@ -281,12 +287,15 @@ LoopInfo::createLoopVectorizeMetadata(const LoopAttributes &Attrs, } // Setting vectorize.enable - if (Attrs.VectorizeEnable != LoopAttributes::Unspecified) { + if (Attrs.VectorizeEnable != LoopAttributes::Unspecified || + IsVectorPredicateEnabled) { Metadata *Vals[] = { MDString::get(Ctx, "llvm.loop.vectorize.enable"), ConstantAsMetadata::get(ConstantInt::get( llvm::Type::getInt1Ty(Ctx), - (Attrs.VectorizeEnable == LoopAttributes::Enable)))}; + IsVectorPredicateEnabled + ? true + : (Attrs.VectorizeEnable == LoopAttributes::Enable)))}; Args.push_back(MDNode::get(Ctx, Vals)); } -- cgit v1.2.3