Ensure labels are dumped in `lower-to-ir` (#1459)

* Ensure labels are dumped  in `lower-to-ir`.

There is a `dumpIR` function that accepts a label parameter already in slang-emit.cpp. This change moves it to slang-ir.cpp so it may be called from other files.

* update expected test result

Co-authored-by: Yong He <yhe@nvidia.com>
Co-authored-by: Tim Foley <tfoleyNV@users.noreply.github.com>

1 files changed, 19 insertions, 1 deletions

diff --git a/source/slang/slang-ir.cpp b/source/slang/slang-ir.cpp
index f551dcbba..a5e0de0c5 100644
--- a/source/slang/slang-ir.cpp
+++ b/source/slang/slang-ir.cpp
@@ -4637,6 +4637,25 @@ namespace Slang
         writer->flush();
     }
 
+    void dumpIR(IRModule* module, ISlangWriter* slangWriter, char const* label)
+    {
+        WriterHelper writer(slangWriter);
+
+        if (label)
+        {
+            writer.put("### ");
+            writer.put(label);
+            writer.put(":\n");
+        }
+
+        dumpIR(module, slangWriter, IRDumpMode::Simplified);
+
+        if (label)
+        {
+            writer.put("###\n");
+        }
+    }
+
     String getSlangIRAssembly(IRModule* module, IRDumpMode mode)
     {
         StringBuilder sb;
@@ -5377,4 +5396,3 @@ namespace Slang
             ptrType->getOperand(0)->op == opCode;
     }
 }
-