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Move RelPtr/RelSlice out of arches into common

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The bba approach seems widely used enough that it's reasonable for this
to become part of common code.

Signed-off-by: D. Shah <dave@ds0.me>
This commit is contained in:
D. Shah 2021-01-27 20:43:01 +00:00
parent 3fc5455ec5
commit 75ee2fc4e6
4 changed files with 42 additions and 118 deletions
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39
common/relptr.h Normal file
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@ -0,0 +1,39 @@
// This is intended to be included inside arch.h only.
template <typename T> struct RelPtr
{
int32_t offset;
const T *get() const { return reinterpret_cast<const T *>(reinterpret_cast<const char *>(this) + offset); }
const T &operator[](size_t index) const { return get()[index]; }
const T &operator*() const { return *(get()); }
const T *operator->() const { return get(); }
RelPtr(const RelPtr &) = delete;
RelPtr &operator=(const RelPtr &) = delete;
};
NPNR_PACKED_STRUCT(template <typename T> struct RelSlice {
int32_t offset;
uint32_t length;
const T *get() const { return reinterpret_cast<const T *>(reinterpret_cast<const char *>(this) + offset); }
const T &operator[](size_t index) const
{
NPNR_ASSERT(index < length);
return get()[index];
}
const T *begin() const { return get(); }
const T *end() const { return get() + length; }
const size_t size() const { return length; }
const T &operator*() const { return *(get()); }
const T *operator->() const { return get(); }
});

38
ecp5/arch.h
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@ -29,43 +29,7 @@ NEXTPNR_NAMESPACE_BEGIN
/**** Everything in this section must be kept in sync with chipdb.py ****/
template <typename T> struct RelPtr
{
int32_t offset;
const T *get() const { return reinterpret_cast<const T *>(reinterpret_cast<const char *>(this) + offset); }
const T &operator[](size_t index) const { return get()[index]; }
const T &operator*() const { return *(get()); }
const T *operator->() const { return get(); }
RelPtr(const RelPtr &) = delete;
RelPtr &operator=(const RelPtr &) = delete;
};
NPNR_PACKED_STRUCT(template <typename T> struct RelSlice {
int32_t offset;
uint32_t length;
const T *get() const { return reinterpret_cast<const T *>(reinterpret_cast<const char *>(this) + offset); }
const T &operator[](size_t index) const
{
NPNR_ASSERT(index < length);
return get()[index];
}
const T *begin() const { return get(); }
const T *end() const { return get() + length; }
const size_t size() const { return length; }
const T &operator*() const { return *(get()); }
const T *operator->() const { return get(); }
});
#include "relptr.h"
NPNR_PACKED_STRUCT(struct BelWirePOD {
LocationPOD rel_wire_loc;

43
ice40/arch.h
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@ -25,48 +25,7 @@ NEXTPNR_NAMESPACE_BEGIN
/**** Everything in this section must be kept in sync with chipdb.py ****/
template <typename T> struct RelPtr
{
int32_t offset;
// void set(const T *ptr) {
// offset = reinterpret_cast<const char*>(ptr) -
// reinterpret_cast<const char*>(this);
// }
const T *get() const { return reinterpret_cast<const T *>(reinterpret_cast<const char *>(this) + offset); }
const T &operator[](size_t index) const { return get()[index]; }
const T &operator*() const { return *(get()); }
const T *operator->() const { return get(); }
RelPtr(const RelPtr &) = delete;
RelPtr &operator=(const RelPtr &) = delete;
};
NPNR_PACKED_STRUCT(template <typename T> struct RelSlice {
int32_t offset;
uint32_t length;
const T *get() const { return reinterpret_cast<const T *>(reinterpret_cast<const char *>(this) + offset); }
const T &operator[](size_t index) const
{
NPNR_ASSERT(index < length);
return get()[index];
}
const T *begin() const { return get(); }
const T *end() const { return get() + length; }
const size_t size() const { return length; }
const T &operator*() const { return *(get()); }
const T *operator->() const { return get(); }
});
#include "relptr.h"
NPNR_PACKED_STRUCT(struct BelWirePOD {
int32_t port;

40
nexus/arch.h
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@ -28,45 +28,7 @@
NEXTPNR_NAMESPACE_BEGIN
template <typename T> struct RelPtr
{
int32_t offset;
// void set(const T *ptr) {
// offset = reinterpret_cast<const char*>(ptr) -
// reinterpret_cast<const char*>(this);
// }
const T *get() const { return reinterpret_cast<const T *>(reinterpret_cast<const char *>(this) + offset); }
const T &operator[](size_t index) const { return get()[index]; }
const T &operator*() const { return *(get()); }
const T *operator->() const { return get(); }
};
NPNR_PACKED_STRUCT(template <typename T> struct RelSlice {
int32_t offset;
uint32_t length;
const T *get() const { return reinterpret_cast<const T *>(reinterpret_cast<const char *>(this) + offset); }
const T &operator[](size_t index) const
{
NPNR_ASSERT(index < length);
return get()[index];
}
const T *begin() const { return get(); }
const T *end() const { return get() + length; }
const size_t size() const { return length; }
const T &operator*() const { return *(get()); }
const T *operator->() const { return get(); }
});
#include "relptr.h"
/*
Fully deduplicated database