Support SPIRV Capability declaration on intrinsic functions. (#3150)

* Spirv Capability lookup.

* Fix.

---------

Co-authored-by: Yong He <yhe@nvidia.com>

1 files changed, 3 insertions, 15 deletions

diff --git a/source/slang/slang-emit-spirv.cpp b/source/slang/slang-emit-spirv.cpp
index 0878b3494..29114424d 100644
--- a/source/slang/slang-emit-spirv.cpp
+++ b/source/slang/slang-emit-spirv.cpp
@@ -3805,27 +3805,15 @@ struct SPIRVEmitContext
 
     void handleRequiredCapabilitiesImpl(IRInst* inst)
     {
-        // TODO: declare required SPV capabilities.
-
         for (auto decoration : inst->getDecorations())
         {
             switch (decoration->getOp())
             {
             default:
                 break;
-
-            case kIROp_RequireGLSLExtensionDecoration:
-                {
-                    break;
-                }
-            case kIROp_RequireGLSLVersionDecoration:
-                {
-                    break;
-                }
-            case kIROp_RequireSPIRVVersionDecoration:
-                {
-                    break;
-                }
+            case kIROp_RequireSPIRVCapabilityDecoration:
+                requireSPIRVCapability((SpvCapability)getIntVal(decoration->getOperand(0)));
+                break;
             }
         }
     }