4 files changed, 10 insertions, 0 deletions
diff --git a/tools/render-test/options.cpp b/tools/render-test/options.cpp
index 5d3560351..a4a643e22 100644
--- a/tools/render-test/options.cpp
+++ b/tools/render-test/options.cpp
@@ -141,6 +141,10 @@ static gfx::DeviceType _toRenderType(Slang::RenderApiType apiType)
         {
             outOptions.useDXIL = true;
         }
+        else if (argValue == "-emit-spirv-directly")
+        {
+            outOptions.generateSPIRVDirectly = true;
+        }
         else if (argValue == "-only-startup")
         {
             outOptions.onlyStartup = true;
diff --git a/tools/render-test/options.h b/tools/render-test/options.h
index 7940d0d42..f41614360 100644
--- a/tools/render-test/options.h
+++ b/tools/render-test/options.h
@@ -73,6 +73,8 @@ struct Options
 
     Slang::DownstreamArgs downstreamArgs;                    ///< Args to downstream tools. Here it's just slang
 
+    bool generateSPIRVDirectly = false;
+
     Options() { downstreamArgs.addName("slang"); }
 
     static SlangResult parse(int argc, const char*const* argv, Slang::WriterHelper stdError, Options& outOptions);
diff --git a/tools/render-test/render-test-main.cpp b/tools/render-test/render-test-main.cpp
index 96cc94aa3..271356cc3 100644
--- a/tools/render-test/render-test-main.cpp
+++ b/tools/render-test/render-test-main.cpp
@@ -1326,6 +1326,8 @@ static SlangResult _innerMain(Slang::StdWriters* stdWriters, SlangSession* sessi
         desc.adapter = options.adapter.getBuffer();
 
         desc.slang.lineDirectiveMode = SLANG_LINE_DIRECTIVE_MODE_NONE;
+        if (options.generateSPIRVDirectly)
+            desc.slang.targetFlags = SLANG_TARGET_FLAG_GENERATE_SPIRV_DIRECTLY;
 
         List<const char*> requiredFeatureList;
         for (auto& name : options.renderFeatures)
diff --git a/tools/render-test/slang-support.cpp b/tools/render-test/slang-support.cpp
index a533a6378..65f8f244b 100644
--- a/tools/render-test/slang-support.cpp
+++ b/tools/render-test/slang-support.cpp
@@ -96,6 +96,8 @@ void ShaderCompilerUtil::Output::reset()
 
     spSetCodeGenTarget(slangRequest, input.target);
     spSetTargetProfile(slangRequest, 0, spFindProfile(out.session, input.profile.getBuffer()));
+    if (options.generateSPIRVDirectly)
+        spSetTargetFlags(slangRequest, 0, SLANG_TARGET_FLAG_GENERATE_SPIRV_DIRECTLY);
 
     // Define a macro so that shader code in a test can detect what language we
     // are nominally working with.