Automatically generating intrinsic declarations from Dan Gohman. Modified
to construct FunctionType in separate function, and, have getDeclaration
return a Function instead of a Constant.
llvm-svn: 34008
diff --git a/llvm/lib/VMCore/Function.cpp b/llvm/lib/VMCore/Function.cpp
index cc0cefa..72237eb 100644
--- a/llvm/lib/VMCore/Function.cpp
+++ b/llvm/lib/VMCore/Function.cpp
@@ -183,6 +183,25 @@
return Table[id];
}
+const FunctionType *Intrinsic::getType(ID id) {
+ const Type *ResultTy = NULL;
+ std::vector<const Type*> ArgTys;
+ std::vector<FunctionType::ParameterAttributes> Attrs;
+ bool IsVarArg = false;
+
+#define GET_INTRINSIC_GENERATOR
+#include "llvm/Intrinsics.gen"
+#undef GET_INTRINSIC_GENERATOR
+
+ return FunctionType::get(ResultTy, ArgTys, IsVarArg, Attrs);
+}
+
+Function *Intrinsic::getDeclaration(Module *M, ID id) {
+// There can never be multiple globals with the same name of different types,
+// because intrinsics must be a specific type.
+ return cast<Function>(M->getOrInsertFunction(getName(id), getType(id)));
+}
+
Value *IntrinsicInst::StripPointerCasts(Value *Ptr) {
if (ConstantExpr *CE = dyn_cast<ConstantExpr>(Ptr)) {
if (CE->getOpcode() == Instruction::BitCast) {