emit a mapping from LLVM intrinsic -> GCC builtins.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26736 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/IntrinsicEmitter.cpp b/utils/TableGen/IntrinsicEmitter.cpp
index 9396bdf..074a8db 100644
--- a/utils/TableGen/IntrinsicEmitter.cpp
+++ b/utils/TableGen/IntrinsicEmitter.cpp
@@ -33,6 +33,7 @@
std::string(DefName.begin(), DefName.begin()+4) != "int_")
throw "Intrinsic '" + DefName + "' does not start with 'int_'!";
EnumName = std::string(DefName.begin()+4, DefName.end());
+ GCCBuiltinName = R->getValueAsString("GCCBuiltinName");
Name = R->getValueAsString("LLVMName");
if (Name == "") {
@@ -105,6 +106,9 @@
// Emit side effect info for each function.
EmitSideEffectInfo(Ints, OS);
+
+ // Emit a list of intrinsics with corresponding GCC builtins.
+ EmitGCCBuiltinList(Ints, OS);
}
void IntrinsicEmitter::EmitEnumInfo(const std::vector<CodeGenIntrinsic> &Ints,
@@ -221,16 +225,31 @@
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;
+ 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";
-
}
+
+void IntrinsicEmitter::
+EmitGCCBuiltinList(const std::vector<CodeGenIntrinsic> &Ints, std::ostream &OS){
+ OS << "// Get the GCC builtin that corresponds to an LLVM intrinsic.\n";
+ OS << "#ifdef GET_GCC_BUILTIN_NAME\n";
+ OS << " switch (F->getIntrinsicID()) {\n";
+ OS << " default: BuiltinName = \"\"; break;\n";
+ for (unsigned i = 0, e = Ints.size(); i != e; ++i) {
+ if (!Ints[i].GCCBuiltinName.empty()) {
+ OS << " case Intrinsic::" << Ints[i].EnumName << ": BuiltinName = \""
+ << Ints[i].GCCBuiltinName << "\"; break;\n";
+ }
+ }
+ OS << " }\n";
+ OS << "#endif\n\n";
+}
\ No newline at end of file