From b65c3ed0d9d1d466067fe9fb24381fb641de6e58 Mon Sep 17 00:00:00 2001
From: Nick Sarnie <sarnex@users.noreply.github.com>
Date: Wed, 18 Sep 2024 23:04:56 +0900
Subject: [PATCH] [SYCL] Add sanity checks for spec constant metadata (#15420)

Follow up from https://github.com/intel/llvm/pull/15346.

Signed-off-by: Sarnie, Nick <nick.sarnie@intel.com>
---
 llvm/lib/SYCLLowerIR/ComputeModuleRuntimeInfo.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/llvm/lib/SYCLLowerIR/ComputeModuleRuntimeInfo.cpp b/llvm/lib/SYCLLowerIR/ComputeModuleRuntimeInfo.cpp
index 0bfcd53784af3..5f7678313087d 100644
--- a/llvm/lib/SYCLLowerIR/ComputeModuleRuntimeInfo.cpp
+++ b/llvm/lib/SYCLLowerIR/ComputeModuleRuntimeInfo.cpp
@@ -161,8 +161,18 @@ PropSetRegTy computeModuleProperties(const Module &M,
     std::vector<char> DefaultValues;
     SpecConstantsPass::collectSpecConstantDefaultValuesMetadata(M,
                                                                 DefaultValues);
+    assert(!DefaultValues.empty() &&
+           "Expected metadata for spec constant defaults.");
     PropSet.add(PropSetRegTy::SYCL_SPEC_CONSTANTS_DEFAULT_VALUES, "all",
                 DefaultValues);
+  } else {
+#ifndef NDEBUG
+    std::vector<char> DefaultValues;
+    SpecConstantsPass::collectSpecConstantDefaultValuesMetadata(M,
+                                                                DefaultValues);
+    assert(DefaultValues.empty() &&
+           "Unexpected metadata for spec constant defaults.");
+#endif
   }
   if (GlobProps.EmitKernelParamInfo) {
     // extract kernel parameter optimization info per module