Refactor shader cache (#2558)

* Fix a bug in Path::find

* Fix code formatting

* Fix LockFile and add LockFileGuard

* Add PersistentCache and unit test

* Replace file path dependency list with source file dependency list

* Add note on ordering in Module/FileDependencyList

* Remove old shader cache code

* Refactor shader cache implementation

* Temporarily skip unit tests reading/writing files

* Fix warning

* Reenable lock file test

* Rename shader cache tests and disable crashing test

* Testing

* Stop using Path::getCanonical

* Fix persistent cache lock and test

* Fix threading issues

* Move adding file dependency hashes to getEntryPointHash()

* Fix handling of #include files

* Allow specifying additional search paths for gfx testing device

* Work on shader cache tests

* Update project files

* Revive shader cache graphics tests

* Split graphics pipeline test

* Fix compilation

1 files changed, 31 insertions, 0 deletions

diff --git a/tools/gfx-unit-test/shader-cache-multiple-entry-points.slang b/tools/gfx-unit-test/shader-cache-multiple-entry-points.slang
new file mode 100644
index 000000000..a0015b83c
--- /dev/null
+++ b/tools/gfx-unit-test/shader-cache-multiple-entry-points.slang
@@ -0,0 +1,31 @@
+// shader-cache-multiple-entry-points.slang
+
+[shader("compute")]
+[numthreads(4, 1, 1)]
+void computeA(
+    uint3 sv_dispatchThreadID: SV_DispatchThreadID,
+    uniform RWStructuredBuffer<float> buffer)
+{
+    var input = buffer[sv_dispatchThreadID.x];
+    buffer[sv_dispatchThreadID.x] = input + 1.0f;
+}
+           
+[shader("compute")]
+[numthreads(4, 1, 1)]
+void computeB(
+    uint3 sv_dispatchThreadID: SV_DispatchThreadID,
+    uniform RWStructuredBuffer<float> buffer)
+{
+    var input = buffer[sv_dispatchThreadID.x];
+    buffer[sv_dispatchThreadID.x] = input + 2.0f;
+}
+
+[shader("compute")]
+[numthreads(4, 1, 1)]
+void computeC(
+    uint3 sv_dispatchThreadID: SV_DispatchThreadID,
+    uniform RWStructuredBuffer<float> buffer)
+{
+    var input = buffer[sv_dispatchThreadID.x];
+    buffer[sv_dispatchThreadID.x] = input + 3.0f;
+}