d92de00cc1
This is a fairly fundamental change on how IDs are handled.
It serves many purposes:
- Improve performance. We only need to iterate over IDs which are
relevant at any one time.
- Makes sure we iterate through IDs in SPIR-V module declaration order
rather than ID space. IDs don't have to be monotonically increasing,
which was an assumption SPIRV-Cross used to have. It has apparently
never been a problem until now.
- Support LUTs of structs. We do this by interleaving declaration of
constants and struct types in SPIR-V module order.
To support this, the ParsedIR interface needed to change slightly.
Before setting any ID with variant_set<T> we let ParsedIR know
that an ID with a specific type has been added. The surface for change
should be minimal.
ParsedIR will maintain a per-type list of IDs which the cross-compiler
will need to consider for later.
Instead of looping over ir.ids[] (which can be extremely large), we loop
over types now, using:
ir.for_each_typed_id<SPIRVariable>([&](uint32_t id, SPIRVariable &var) {
handle_variable(var);
});
Now we make sure that we're never looking at irrelevant types.
38 lines
355 B
Plaintext
38 lines
355 B
Plaintext
#include <metal_stdlib>
|
|
#include <simd/simd.h>
|
|
|
|
using namespace metal;
|
|
|
|
struct s1
|
|
{
|
|
int a;
|
|
};
|
|
|
|
struct s2
|
|
{
|
|
s1 b;
|
|
};
|
|
|
|
struct s2_1
|
|
{
|
|
s1 b;
|
|
};
|
|
|
|
struct s1_1
|
|
{
|
|
int a;
|
|
};
|
|
|
|
struct dstbuffer
|
|
{
|
|
s2 test[1];
|
|
};
|
|
|
|
kernel void main0(device dstbuffer& _19 [[buffer(1)]])
|
|
{
|
|
s2_1 testVal;
|
|
testVal.b.a = 0;
|
|
_19.test[0].b.a = testVal.b.a;
|
|
}
|
|
|