Gabe Black has uploaded this change for review. (
https://gem5-review.googlesource.com/c/public/gem5/+/52033 )
Change subject: arch: Add some helpers to make it easier to cast PCState.
......................................................................
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
---
M src/arch/generic/pcstate.hh
1 file changed, 31 insertions(+), 0 deletions(-)
diff --git a/src/arch/generic/pcstate.hh b/src/arch/generic/pcstate.hh
index 8fb5ba1..43e32fd 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
--
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Gerrit-Project: public/gem5
Gerrit-Branch: develop
Gerrit-Change-Id: Ibc2443c6b991ebc2e5d0240a88436849cb6de2b9
Gerrit-Change-Number: 52033
Gerrit-PatchSet: 1
Gerrit-Owner: Gabe Black <[email protected]>
Gerrit-MessageType: newchange
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