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author | Rafael Espindola <rafael.espindola@gmail.com> | 2010-08-07 21:48:09 +0000 |
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committer | Rafael Espindola <rafael.espindola@gmail.com> | 2010-08-07 21:48:09 +0000 |
commit | 3cb96268c47ded89e31885bf4dcfe29ee71ab214 (patch) | |
tree | 0113b22879aca7e39414f3b06ce20fd13ce3a6a5 /tools/bugpoint-passes | |
parent | fff0f11989a9ef23ab3e308783cc90c7620000eb (diff) | |
download | llvm-3cb96268c47ded89e31885bf4dcfe29ee71ab214.tar.gz llvm-3cb96268c47ded89e31885bf4dcfe29ee71ab214.tar.bz2 llvm-3cb96268c47ded89e31885bf4dcfe29ee71ab214.tar.xz |
Move the bugpoint test passes to a plugin in preparation for having bugpoint
use opt.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110520 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'tools/bugpoint-passes')
-rw-r--r-- | tools/bugpoint-passes/TestPasses.cpp | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/tools/bugpoint-passes/TestPasses.cpp b/tools/bugpoint-passes/TestPasses.cpp new file mode 100644 index 0000000000..4ae23f5b76 --- /dev/null +++ b/tools/bugpoint-passes/TestPasses.cpp @@ -0,0 +1,75 @@ +//===- TestPasses.cpp - "buggy" passes used to test bugpoint --------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file contains "buggy" passes that are used to test bugpoint, to check +// that it is narrowing down testcases correctly. +// +//===----------------------------------------------------------------------===// + +#include "llvm/BasicBlock.h" +#include "llvm/Constant.h" +#include "llvm/Instructions.h" +#include "llvm/Pass.h" +#include "llvm/Type.h" +#include "llvm/Support/InstVisitor.h" + +using namespace llvm; + +namespace { + /// CrashOnCalls - This pass is used to test bugpoint. It intentionally + /// crashes on any call instructions. + class CrashOnCalls : public BasicBlockPass { + public: + static char ID; // Pass ID, replacement for typeid + CrashOnCalls() : BasicBlockPass(ID) {} + private: + virtual void getAnalysisUsage(AnalysisUsage &AU) const { + AU.setPreservesAll(); + } + + bool runOnBasicBlock(BasicBlock &BB) { + for (BasicBlock::iterator I = BB.begin(), E = BB.end(); I != E; ++I) + if (isa<CallInst>(*I)) + abort(); + + return false; + } + }; + + char CrashOnCalls::ID = 0; + RegisterPass<CrashOnCalls> + X("bugpoint-crashcalls", + "BugPoint Test Pass - Intentionally crash on CallInsts"); +} + +namespace { + /// DeleteCalls - This pass is used to test bugpoint. It intentionally + /// deletes some call instructions, "misoptimizing" the program. + class DeleteCalls : public BasicBlockPass { + public: + static char ID; // Pass ID, replacement for typeid + DeleteCalls() : BasicBlockPass(ID) {} + private: + bool runOnBasicBlock(BasicBlock &BB) { + for (BasicBlock::iterator I = BB.begin(), E = BB.end(); I != E; ++I) + if (CallInst *CI = dyn_cast<CallInst>(I)) { + if (!CI->use_empty()) + CI->replaceAllUsesWith(Constant::getNullValue(CI->getType())); + CI->getParent()->getInstList().erase(CI); + break; + } + return false; + } + }; + + char DeleteCalls::ID = 0; + RegisterPass<DeleteCalls> + Y("bugpoint-deletecalls", + "BugPoint Test Pass - Intentionally 'misoptimize' CallInsts"); +} |