Implement basic _Complex integer constant folding.
- Merged into single ComplexEvaluator, these share too much logic to
be worth splitting for float/int (IMHO). Will split on request.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63248 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGExprConstant.cpp b/lib/CodeGen/CGExprConstant.cpp
index 3b6ebb4..87868ed 100644
--- a/lib/CodeGen/CGExprConstant.cpp
+++ b/lib/CodeGen/CGExprConstant.cpp
@@ -597,7 +597,9 @@
assert(!Result.HasSideEffects &&
"Constant expr should not have any side effects!");
switch (Result.Val.getKind()) {
- default: assert(0 && "unhandled value kind!");
+ case APValue::Uninitialized:
+ assert(0 && "Constant expressions should be uninitialized.");
+ return llvm::UndefValue::get(getTypes().ConvertType(type));
case APValue::LValue: {
llvm::Constant *Offset =
llvm::ConstantInt::get(llvm::Type::Int64Ty,
@@ -631,6 +633,14 @@
}
return C;
}
+ case APValue::ComplexInt: {
+ llvm::Constant *Complex[2];
+
+ Complex[0] = llvm::ConstantInt::get(Result.Val.getComplexIntReal());
+ Complex[1] = llvm::ConstantInt::get(Result.Val.getComplexIntImag());
+
+ return llvm::ConstantStruct::get(Complex, 2);
+ }
case APValue::Float:
return llvm::ConstantFP::get(Result.Val.getFloat());
case APValue::ComplexFloat: {