Support for [[vk::push_constant]] (#629)

* Support for attributed [[vk::push_constant]] and [[push_constant]]. Can also use layout(push_constant).

* Fix test so matches the expected output.

* Add expected output to binding-push-constant-gl.hlsl

* Trivial change to force travis rebuild to test the gcc linux build really has a problem.

1 files changed, 10 insertions, 1 deletions

diff --git a/source/slang/parameter-binding.cpp b/source/slang/parameter-binding.cpp
index ced8d7af2..40491c4df 100644
--- a/source/slang/parameter-binding.cpp
+++ b/source/slang/parameter-binding.cpp
@@ -977,7 +977,7 @@ getTypeLayoutForGlobalShaderParameter_GLSL(
 
     // We want to check for a constant-buffer type with a `push_constant` layout
     // qualifier before we move on to anything else.
-    if( varDecl->HasModifier<GLSLPushConstantLayoutModifier>() && type->As<ConstantBufferType>() )
+    if( varDecl->HasModifier<PushConstantAttribute>() && type->As<ConstantBufferType>() )
     {
         return CreateTypeLayout(
             layoutContext.with(rules->getPushConstantBufferRules()),
@@ -1043,6 +1043,15 @@ getTypeLayoutForGlobalShaderParameter_HLSL(
     auto rules = layoutContext.getRulesFamily();
     auto type = varDecl->getType();
 
+    // We want to check for a constant-buffer type with a `push_constant` layout
+    // qualifier before we move on to anything else.
+    if (varDecl->HasModifier<PushConstantAttribute>() && type->As<ConstantBufferType>())
+    {
+        return CreateTypeLayout(
+            layoutContext.with(rules->getPushConstantBufferRules()),
+            type);
+    }
+
     // HLSL `static` modifier indicates "thread local"
     if(varDecl->HasModifier<HLSLStaticModifier>())
         return nullptr;