arch: Add some helpers to make it easier to cast PCState.
These helpers will make it easier to cast a PCStatePtr into an ISA
specific class with less syntactic fluff. They are currently implemented
with a static_cast for performance reasons, but could be implemented
with a dynamic_cast and an assert for extra debugging if you were
willing to pay the performance overhead. In the future this might be
switched/enabled as an extra debugging mode, like how locking can have
extra checks enabled in the Linux kernel.
Change-Id: Ibc2443c6b991ebc2e5d0240a88436849cb6de2b9
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/52033
Tested-by: kokoro <noreply+kokoro@google.com>
Maintainer: Bobby R. Bruce <bbruce@ucdavis.edu>
Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br>
diff --git a/src/arch/generic/pcstate.hh b/src/arch/generic/pcstate.hh
index 190d3c9..c12b5cf 100644
--- a/src/arch/generic/pcstate.hh
+++ b/src/arch/generic/pcstate.hh
@@ -54,6 +54,20 @@
{
public:
virtual ~PCStateBase() = default;
+
+ template<class Target>
+ Target &
+ as()
+ {
+ return static_cast<Target &>(*this);
+ }
+
+ template<class Target>
+ const Target &
+ as() const
+ {
+ return static_cast<const Target &>(*this);
+ }
};
namespace GenericISA
