Update spirv-tools to for SDK v2025.2 (#6893)

* Update spirv-tools to for SDK v2025.2

Fixes: #6850

* bump spirv version to 1.4 for op linkage

* skip-spirv-validation for coop mat

* add skip-spirv-validation option to slang session desc

* use SPV_ENV_UNIVERSAL_1_6 for spirv-tool env target

Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>

---------

Co-authored-by: slangbot <ellieh+slangbot@nvidia.com>
Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>

3 files changed, 7 insertions, 0 deletions

diff --git a/tools/render-test/options.cpp b/tools/render-test/options.cpp
index ed6c6a3c6..e50166017 100644
--- a/tools/render-test/options.cpp
+++ b/tools/render-test/options.cpp
@@ -158,6 +158,10 @@ static rhi::DeviceType _toRenderType(Slang::RenderApiType apiType)
         {
             outOptions.useDXIL = true;
         }
+        else if (argValue == "-skip-spirv-validation")
+        {
+            outOptions.skipSPIRVValidation = true;
+        }
         else if (argValue == "-emit-spirv-directly")
         {
             outOptions.generateSPIRVDirectly = true;
diff --git a/tools/render-test/options.h b/tools/render-test/options.h
index d94504c10..4c7e6faa1 100644
--- a/tools/render-test/options.h
+++ b/tools/render-test/options.h
@@ -93,6 +93,8 @@ struct Options
 
     bool showAdapterInfo = false;
 
+    bool skipSPIRVValidation = false;
+
     Options() { downstreamArgs.addName("slang"); }
 
     static SlangResult parse(
diff --git a/tools/render-test/slang-support.cpp b/tools/render-test/slang-support.cpp
index dfde5f386..c54abb1f8 100644
--- a/tools/render-test/slang-support.cpp
+++ b/tools/render-test/slang-support.cpp
@@ -199,6 +199,7 @@ static SlangResult _compileProgramImpl(
     sessionDesc.targetCount = 1;
     sessionDesc.targets = &sessionTargetDesc;
 
+    sessionDesc.skipSPIRVValidation = options.skipSPIRVValidation;
     if (options.generateSPIRVDirectly)
     {
         slang::CompilerOptionEntry entry;