Implement codegen support for:
char text[8] = "string";
Big fixme remains.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@44750 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/CodeGen/CodeGenModule.cpp b/CodeGen/CodeGenModule.cpp
index ecabb81..5533651 100644
--- a/CodeGen/CodeGenModule.cpp
+++ b/CodeGen/CodeGenModule.cpp
@@ -407,6 +407,27 @@
return llvm::ConstantExpr::getGetElementPtr(C, Ops, 2);
}
+ // If this is an implicit cast of a string literal to an array type, this
+ // must be a string initializing an array. Don't emit it as the address of
+ // the string, emit the string data itself as an inline array.
+ if (const StringLiteral *String =
+ dyn_cast<StringLiteral>(ICExpr->getSubExpr()))
+ if (const ArrayType *AT = ICExpr->getType()->getAsArrayType()) {
+ // Verify that this is an array of char or wchar. Array of const char*
+ // can be initialized with a string literal, which does not expand the
+ // characters inline.
+ // FIXME: What about wchar_t??
+ if (AT->getElementType()->isCharType()) {
+ const char *StrData = String->getStrData();
+ unsigned Len = String->getByteLength();
+ llvm::Constant *C =
+ llvm::ConstantArray::get(std::string(StrData, StrData + Len));
+ // FIXME: This should return a string of the proper type: this
+ // mishandles things like 'char x[4] = "1234567";
+ return C;
+ }
+ }
+
return GenerateConstantCast(ICExpr->getSubExpr(), type, CGM);
}