Author: timshen Date: Thu Jun 29 16:08:38 2017 New Revision: 306756 URL: http://llvm.org/viewvc/llvm-project?rev=306756&view=rev Log: [ThinkLTO] Invoke build(Thin)?LTOPreLinkDefaultPipeline.
Previously it doesn't actually invoke the designated new PM builder functions. This patch moves NameAnonGlobalPass out from PassBuilder, as Chandler points out that PassBuilder is used for non-O0 builds, and for optimizations only. Differential Revision: https://reviews.llvm.org/D34728 Modified: cfe/trunk/lib/CodeGen/BackendUtil.cpp Modified: cfe/trunk/lib/CodeGen/BackendUtil.cpp URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/BackendUtil.cpp?rev=306756&r1=306755&r2=306756&view=diff ============================================================================== --- cfe/trunk/lib/CodeGen/BackendUtil.cpp (original) +++ cfe/trunk/lib/CodeGen/BackendUtil.cpp Thu Jun 29 16:08:38 2017 @@ -54,6 +54,7 @@ #include "llvm/Transforms/ObjCARC.h" #include "llvm/Transforms/Scalar.h" #include "llvm/Transforms/Scalar/GVN.h" +#include "llvm/Transforms/Utils/NameAnonGlobals.h" #include "llvm/Transforms/Utils/SymbolRewriter.h" #include <memory> using namespace clang; @@ -881,17 +882,28 @@ void EmitAssemblyHelper::EmitAssemblyWit ModulePassManager MPM; if (!CodeGenOpts.DisableLLVMPasses) { + bool IsThinLTO = CodeGenOpts.EmitSummaryIndex; + bool IsLTO = CodeGenOpts.PrepareForLTO; + if (CodeGenOpts.OptimizationLevel == 0) { // Build a minimal pipeline based on the semantics required by Clang, // which is just that always inlining occurs. MPM.addPass(AlwaysInlinerPass()); + if (IsThinLTO) + MPM.addPass(NameAnonGlobalPass()); } else { - // Otherwise, use the default pass pipeline. We also have to map our - // optimization levels into one of the distinct levels used to configure - // the pipeline. + // Map our optimization levels into one of the distinct levels used to + // configure the pipeline. PassBuilder::OptimizationLevel Level = mapToLevel(CodeGenOpts); - MPM = PB.buildPerModuleDefaultPipeline(Level); + if (IsThinLTO) { + MPM = PB.buildThinLTOPreLinkDefaultPipeline(Level); + MPM.addPass(NameAnonGlobalPass()); + } else if (IsLTO) { + MPM = PB.buildLTOPreLinkDefaultPipeline(Level); + } else { + MPM = PB.buildPerModuleDefaultPipeline(Level); + } } } _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
