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author | Chris Lattner <sabre@nondot.org> | 2006-03-09 22:37:52 +0000 |
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committer | Chris Lattner <sabre@nondot.org> | 2006-03-09 22:37:52 +0000 |
commit | 4e5f35973c1bc56cce14d44c6f8f4ad1e9f1a438 (patch) | |
tree | 95531e24e6acfdc301cae6a54bf54ffeb266d93a /utils/TableGen/IntrinsicEmitter.cpp | |
parent | 06383e948f61be77544ca848e4392ff4482deba7 (diff) | |
download | llvm-4e5f35973c1bc56cce14d44c6f8f4ad1e9f1a438.tar.gz llvm-4e5f35973c1bc56cce14d44c6f8f4ad1e9f1a438.tar.bz2 llvm-4e5f35973c1bc56cce14d44c6f8f4ad1e9f1a438.tar.xz |
generate side-effect info
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26672 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'utils/TableGen/IntrinsicEmitter.cpp')
-rw-r--r-- | utils/TableGen/IntrinsicEmitter.cpp | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/utils/TableGen/IntrinsicEmitter.cpp b/utils/TableGen/IntrinsicEmitter.cpp index 680264ff20..c77b9ba096 100644 --- a/utils/TableGen/IntrinsicEmitter.cpp +++ b/utils/TableGen/IntrinsicEmitter.cpp @@ -100,6 +100,9 @@ void IntrinsicEmitter::run(std::ostream &OS) { // Emit mod/ref info for each function. EmitModRefInfo(Ints, OS); + + // Emit side effect info for each function. + EmitSideEffectInfo(Ints, OS); } void IntrinsicEmitter::EmitEnumInfo(const std::vector<CodeGenIntrinsic> &Ints, @@ -191,3 +194,25 @@ void IntrinsicEmitter::EmitModRefInfo(const std::vector<CodeGenIntrinsic> &Ints, } OS << "#endif\n\n"; } + +void IntrinsicEmitter:: +EmitSideEffectInfo(const std::vector<CodeGenIntrinsic> &Ints, std::ostream &OS){ + OS << "// isInstructionTriviallyDead code.\n"; + OS << "#ifdef GET_SIDE_EFFECT_INFO\n"; + OS << " switch (F->getIntrinsicID()) {\n"; + OS << " default: break;\n"; + for (unsigned i = 0, e = Ints.size(); i != e; ++i) { + switch (Ints[i].ModRef) { + default: break; + case CodeGenIntrinsic::NoMem: + case CodeGenIntrinsic::ReadArgMem: + case CodeGenIntrinsic::ReadMem: + OS << " case Intrinsic::" << Ints[i].EnumName << ":\n"; + break; + } + } + OS << " return true; // These intrinsics have no side effects.\n"; + OS << " }\n"; + OS << "#endif\n\n"; + +} |