[PATCH] D117609: [llvm-jitlink] Prevent dead-stripping of test callback

[Ben Langmuir via Phabricator via llvm-commits]

benlangmuir created this revision.
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`llvm_jitlink_setTestResultOverride` is used via runtime lookup by tests, so make sure it is not dead-stripped from llvm-jitlink in release builds.

      

Fixes https://github.com/llvm/llvm-project/issues/5320


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D117609

Files:
  llvm/tools/llvm-jitlink/llvm-jitlink.cpp


Index: llvm/tools/llvm-jitlink/llvm-jitlink.cpp
===================================================================
--- llvm/tools/llvm-jitlink/llvm-jitlink.cpp
+++ llvm/tools/llvm-jitlink/llvm-jitlink.cpp
@@ -231,7 +231,8 @@
 static bool UseTestResultOverride = false;
 static int64_t TestResultOverride = 0;
 
-extern "C" void llvm_jitlink_setTestResultOverride(int64_t Value) {
+extern "C" LLVM_ATTRIBUTE_USED void
+llvm_jitlink_setTestResultOverride(int64_t Value) {
   TestResultOverride = Value;
   UseTestResultOverride = true;
 }


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