From 2ea29ba2a8ddd7ba4b946eb754f1a39304d9fc09 Mon Sep 17 00:00:00 2001 From: Dylan Noblesmith Date: Fri, 13 May 2011 21:36:16 +0000 Subject: ExecutionEngine: fix JIT/MCJIT selectTarget() duplication (v2) This prepares for making JITCtor/MCJITCtor take a TargetMachine* directly from clients like EngineBuilder. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131316 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/ExecutionEngine/JIT/CMakeLists.txt | 1 - lib/ExecutionEngine/JIT/JIT.cpp | 11 +++- lib/ExecutionEngine/JIT/JIT.h | 8 --- lib/ExecutionEngine/JIT/TargetSelect.cpp | 91 -------------------------------- 4 files changed, 9 insertions(+), 102 deletions(-) delete mode 100644 lib/ExecutionEngine/JIT/TargetSelect.cpp (limited to 'lib/ExecutionEngine/JIT') diff --git a/lib/ExecutionEngine/JIT/CMakeLists.txt b/lib/ExecutionEngine/JIT/CMakeLists.txt index 42020d69af..cefb0aedde 100644 --- a/lib/ExecutionEngine/JIT/CMakeLists.txt +++ b/lib/ExecutionEngine/JIT/CMakeLists.txt @@ -9,5 +9,4 @@ add_llvm_library(LLVMJIT JITEmitter.cpp JITMemoryManager.cpp OProfileJITEventListener.cpp - TargetSelect.cpp ) diff --git a/lib/ExecutionEngine/JIT/JIT.cpp b/lib/ExecutionEngine/JIT/JIT.cpp index d1f87acd61..3c04cd20a7 100644 --- a/lib/ExecutionEngine/JIT/JIT.cpp +++ b/lib/ExecutionEngine/JIT/JIT.cpp @@ -228,14 +228,21 @@ ExecutionEngine *JIT::createJIT(Module *M, StringRef MCPU, const SmallVectorImpl& MAttrs) { // Try to register the program as a source of symbols to resolve against. + // + // FIXME: Don't do this here. sys::DynamicLibrary::LoadLibraryPermanently(0, NULL); // Pick a target either via -march or by guessing the native arch. - TargetMachine *TM = JIT::selectTarget(M, MArch, MCPU, MAttrs, ErrorStr); + // + // FIXME: This should be lifted out of here, it isn't something which should + // be part of the JIT policy, rather the burden for this selection should be + // pushed to clients. + TargetMachine *TM = + EngineBuilder::selectTarget(M, MArch, MCPU, MAttrs, ErrorStr); if (!TM || (ErrorStr && ErrorStr->length() > 0)) return 0; TM->setCodeModel(CMM); - // If the target supports JIT code generation, create a the JIT. + // If the target supports JIT code generation, create the JIT. if (TargetJITInfo *TJ = TM->getJITInfo()) { return new JIT(M, *TM, *TJ, JMM, OptLevel, GVsWithCode); } else { diff --git a/lib/ExecutionEngine/JIT/JIT.h b/lib/ExecutionEngine/JIT/JIT.h index b576c168f2..bcf638b8d9 100644 --- a/lib/ExecutionEngine/JIT/JIT.h +++ b/lib/ExecutionEngine/JIT/JIT.h @@ -181,14 +181,6 @@ public: /// JITCodeEmitter *getCodeEmitter() const { return JCE; } - /// selectTarget - Pick a target either via -march or by guessing the native - /// arch. Add any CPU features specified via -mcpu or -mattr. - static TargetMachine *selectTarget(Module *M, - StringRef MArch, - StringRef MCPU, - const SmallVectorImpl& MAttrs, - std::string *Err); - static ExecutionEngine *createJIT(Module *M, std::string *ErrorStr, JITMemoryManager *JMM, diff --git a/lib/ExecutionEngine/JIT/TargetSelect.cpp b/lib/ExecutionEngine/JIT/TargetSelect.cpp deleted file mode 100644 index 8d92ab01c3..0000000000 --- a/lib/ExecutionEngine/JIT/TargetSelect.cpp +++ /dev/null @@ -1,91 +0,0 @@ -//===-- TargetSelect.cpp - Target Chooser Code ----------------------------===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -// -// This just asks the TargetRegistry for the appropriate JIT to use, and allows -// the user to specify a specific one on the commandline with -march=x. Clients -// should initialize targets prior to calling createJIT. -// -//===----------------------------------------------------------------------===// - -#include "JIT.h" -#include "llvm/Module.h" -#include "llvm/ADT/Triple.h" -#include "llvm/Support/CommandLine.h" -#include "llvm/Support/raw_ostream.h" -#include "llvm/Support/Host.h" -#include "llvm/Target/SubtargetFeature.h" -#include "llvm/Target/TargetMachine.h" -#include "llvm/Target/TargetRegistry.h" -using namespace llvm; - -/// selectTarget - Pick a target either via -march or by guessing the native -/// arch. Add any CPU features specified via -mcpu or -mattr. -TargetMachine *JIT::selectTarget(Module *Mod, - StringRef MArch, - StringRef MCPU, - const SmallVectorImpl& MAttrs, - std::string *ErrorStr) { - Triple TheTriple(Mod->getTargetTriple()); - if (TheTriple.getTriple().empty()) - TheTriple.setTriple(sys::getHostTriple()); - - // Adjust the triple to match what the user requested. - const Target *TheTarget = 0; - if (!MArch.empty()) { - for (TargetRegistry::iterator it = TargetRegistry::begin(), - ie = TargetRegistry::end(); it != ie; ++it) { - if (MArch == it->getName()) { - TheTarget = &*it; - break; - } - } - - if (!TheTarget) { - *ErrorStr = "No available targets are compatible with this -march, " - "see -version for the available targets.\n"; - return 0; - } - - // Adjust the triple to match (if known), otherwise stick with the - // module/host triple. - Triple::ArchType Type = Triple::getArchTypeForLLVMName(MArch); - if (Type != Triple::UnknownArch) - TheTriple.setArch(Type); - } else { - std::string Error; - TheTarget = TargetRegistry::lookupTarget(TheTriple.getTriple(), Error); - if (TheTarget == 0) { - if (ErrorStr) - *ErrorStr = Error; - return 0; - } - } - - if (!TheTarget->hasJIT()) { - errs() << "WARNING: This target JIT is not designed for the host you are" - << " running. If bad things happen, please choose a different " - << "-march switch.\n"; - } - - // Package up features to be passed to target/subtarget - std::string FeaturesStr; - if (!MCPU.empty() || !MAttrs.empty()) { - SubtargetFeatures Features; - Features.setCPU(MCPU); - for (unsigned i = 0; i != MAttrs.size(); ++i) - Features.AddFeature(MAttrs[i]); - FeaturesStr = Features.getString(); - } - - // Allocate a target... - TargetMachine *Target = - TheTarget->createTargetMachine(TheTriple.getTriple(), FeaturesStr); - assert(Target && "Could not allocate target machine!"); - return Target; -} -- cgit v1.2.3