common: pass-through hash for integer and pointer keys; RangeSet::Intersects

Common::unordered_map/set defaulted to std::hash, a byte-wise FNV-1a on MSVC for
integers and pointers, which boost's flat containers then mix again: the GPU thread's
page maps (shader and query cache invalidation, per inline upload) spent ~1% in it.
Integer and pointer keys now go through as they are and boost mixes them.
BufferCache::IsRegionGpuModified visited every GPU-written range inside the query just
to answer yes or no; without per-fence downloads those ranges stay fragmented and it was
~4% of title 1's GPU thread (inline uploads). RangeSet::Intersects answers with one
lookup. Inline uploads: 10.5% -> 7.5% of the GPU thread.

2 files changed, 2 insertions, 2 deletions

diff --git a/src/common/container/unordered_map.h b/src/common/container/unordered_map.h
index 7d9e49fd80..c4d4a72663 100644
--- a/src/common/container/unordered_map.h
+++ b/src/common/container/unordered_map.h
@@ -9,7 +9,7 @@
 
 namespace Common {
 
-template <class Key, class T, class Hash = std::hash<Key>, class Pred = std::equal_to<Key>,
+template <class Key, class T, class Hash = FastHash<Key>, class Pred = std::equal_to<Key>,
           class Allocator = std::allocator<std::pair<const Key, T>>>
 using unordered_map = boost::unordered::unordered_flat_map<Key, T, Hash, Pred, Allocator>;
 
diff --git a/src/common/container/unordered_set.h b/src/common/container/unordered_set.h
index 54d71406a1..690c33286f 100644
--- a/src/common/container/unordered_set.h
+++ b/src/common/container/unordered_set.h
@@ -9,7 +9,7 @@
 
 namespace Common {
 
-template <class Key, class Hash = std::hash<Key>, class Pred = std::equal_to<Key>,
+template <class Key, class Hash = FastHash<Key>, class Pred = std::equal_to<Key>,
           class Allocator = std::allocator<Key>>
 using unordered_set = boost::unordered::unordered_flat_set<Key, Hash, Pred, Allocator>;