[llvm] [llvm-exegesis] Add explicit error message with segfault address (PR #74210)

[Aiden Grossman via llvm-commits]

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@@ -41,14 +43,19 @@ class ClusteringError : public ErrorInfo<ClusteringError> {
 class SnippetCrash : public ErrorInfo<SnippetCrash> {
 public:
   static char ID;
-  SnippetCrash(const Twine &S) : Msg(S.str()) {}
+  SnippetCrash(const Twine &S)
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boomanaiden154 wrote:

https://github.com/llvm/llvm-project/pull/74211 adds additional support (including a getter). https://github.com/google/gematria/pull/30 shows the usage on top of that PR.

All good on the conflicting recommendations. I definitely should've provided more context to make things easier for you.

https://github.com/llvm/llvm-project/pull/74210