[llvm] [ThinLTO] Don't mark calloc function dead (PR #72673)

[Teresa Johnson via llvm-commits]

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@@ -54,6 +54,10 @@ static const char *PreservedSymbols[] = {
     // TODO: Are there similar such variables?
     "__ssp_canary_word",
     "__stack_chk_guard",
+    // The dead store elimination pass can fold malloc + memset calls into
+    // a single call to calloc. Prevent thin LTO from marking calloc a dead
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teresajohnson wrote:

I think this comment is not addressed.

https://github.com/llvm/llvm-project/pull/72673