PersistentShaderCache integration (#2453)

* Shader cache index integrated into RendererBase; Added test for cache eviction policy (which currently does not pass)

* Restructured main if block in getEntryPointCodeFromShaderCache; Post-rebase cleanup

* undo local testing only change

* Fixed issues causing shader cache tests to fail

* Edited gfx.slang to reflect structural changes to IDevice::Desc and to include ShaderCacheDesc; Modified how the cache is reading in the file from disk; Added a check to the cache eviction policy test that checks for correct order of entries in the cache as well as eight total expected output files for D3D12 and Vulkan

* Removed line in gfx-unit-test.cpp for local testing

* Edited .gitignore to ignore all shaders automatically generated by the shader cache tests and removed the test shaders that were previously added; Review changes, most notably with an overhaul of how the cache eviction policy test handles checking order of entries

* Ran premake; Removed local testing specific line (again)

* Removed expected comparison files from earlier commit; Ran premake

* Edited premake5.lua to also ignore the auto-generated shader files from specific shader cache tests

* Fixed weird indent in premake5.lua

1 files changed, 6 insertions, 6 deletions

diff --git a/tools/gfx-unit-test/gfx-test-util.cpp b/tools/gfx-unit-test/gfx-test-util.cpp
index 90aec2647..fa0745872 100644
--- a/tools/gfx-unit-test/gfx-test-util.cpp
+++ b/tools/gfx-unit-test/gfx-test-util.cpp
@@ -176,7 +176,10 @@ namespace gfx_test
         compareComputeResultFuzzy(result, expectedResult, expectedBufferSize);
     }
 
-    Slang::ComPtr<gfx::IDevice> createTestingDevice(UnitTestContext* context, Slang::RenderApiFlag::Enum api, ISlangMutableFileSystem* fileSystem)
+    Slang::ComPtr<gfx::IDevice> createTestingDevice(
+        UnitTestContext* context,
+        Slang::RenderApiFlag::Enum api,
+        gfx::IDevice::ShaderCacheDesc shaderCache)
     {
         Slang::ComPtr<gfx::IDevice> device;
         gfx::IDevice::Desc deviceDesc = {};
@@ -208,6 +211,8 @@ namespace gfx_test
         deviceDesc.slang.searchPathCount = (SlangInt)SLANG_COUNT_OF(searchPaths);
         deviceDesc.slang.searchPaths = searchPaths;
 
+        deviceDesc.shaderCache = shaderCache;
+
         gfx::D3D12DeviceExtendedDesc extDesc = {};
         extDesc.rootParameterShaderAttributeName = "root";
 
@@ -215,11 +220,6 @@ namespace gfx_test
         void* extDescPtr = &extDesc;
         deviceDesc.extendedDescs = &extDescPtr;
 
-        if (fileSystem)
-        {
-            deviceDesc.shaderCacheFileSystem = fileSystem;
-        }
-
         auto createDeviceResult = gfxCreateDevice(&deviceDesc, device.writeRef());
         if (SLANG_FAILED(createDeviceResult))
         {