Add support for pointer literals in metal (#8040)

Add support for kIROp_PtrLit types in metal and add a test for null pointer
values, which is the only valid value.

1 files changed, 5 insertions, 0 deletions

diff --git a/source/slang/slang-emit-metal.cpp b/source/slang/slang-emit-metal.cpp
index d3b00d57d..7dd0c19ad 100644
--- a/source/slang/slang-emit-metal.cpp
+++ b/source/slang/slang-emit-metal.cpp
@@ -937,6 +937,11 @@ bool MetalSourceEmitter::tryEmitInstExprImpl(IRInst* inst, const EmitOpInfo& inO
             }
             return true;
         }
+    case kIROp_PtrLit:
+        {
+            m_writer->emit("nullptr");
+            return true;
+        }
     default:
         break;
     }