mirror of
https://github.com/encounter/dawn-cmake.git
synced 2025-07-15 09:35:57 +00:00
1a1b5278d5
Change the DecomposeMemoryAccess to behave more like the DirectVariableAccess transform, in that it'll inline the access of buffer variable into the load / store helper functions, instead of passing the array down. This avoids large array copies observed with FXC, which can have *severe* performance costs. Fixed: tint:1819 Change-Id: I52eb3f908813f72ab9da446743e24a2637158309 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/121460 Kokoro: Kokoro <noreply+kokoro@google.com> Auto-Submit: Ben Clayton <bclayton@google.com> Reviewed-by: James Price <jrprice@google.com> Commit-Queue: James Price <jrprice@google.com>
30 lines
784 B
HLSL
30 lines
784 B
HLSL
RWByteAddressBuffer sb_rw : register(u0, space0);
|
|
|
|
struct atomic_compare_exchange_weak_ret_type {
|
|
int old_value;
|
|
bool exchanged;
|
|
};
|
|
|
|
atomic_compare_exchange_weak_ret_type sb_rwatomicCompareExchangeWeak(uint offset, int compare, int value) {
|
|
atomic_compare_exchange_weak_ret_type result=(atomic_compare_exchange_weak_ret_type)0;
|
|
sb_rw.InterlockedCompareExchange(offset, compare, value, result.old_value);
|
|
result.exchanged = result.old_value == compare;
|
|
return result;
|
|
}
|
|
|
|
|
|
void atomicCompareExchangeWeak_1bd40a() {
|
|
atomic_compare_exchange_weak_ret_type res = sb_rwatomicCompareExchangeWeak(0u, 1, 1);
|
|
}
|
|
|
|
void fragment_main() {
|
|
atomicCompareExchangeWeak_1bd40a();
|
|
return;
|
|
}
|
|
|
|
[numthreads(1, 1, 1)]
|
|
void compute_main() {
|
|
atomicCompareExchangeWeak_1bd40a();
|
|
return;
|
|
}
|