================
@@ -2112,6 +2112,14 @@ bool SampleProfileLoader::doInitialization(Module &M,
DS_Warning));
return false;
}
+
+ if (!FunctionSamples::ProfileIsMixedProbeOrder) {
+ const char *Msg =
+ "Pseudo-probe-based profile is on an old version ID order which "
+ "could cause profile mismatch(performance regression)";
+ Ctx.diagnose(DiagnosticInfoSampleProfile(M.getModuleIdentifier(), Msg,
----------------
WenleiHe wrote:
Make this an error so issues like this won't go unnoticed?
also:
`cause profile mismatch(performance regression`
->
`cause performance regression due to profile mismatch`
https://github.com/llvm/llvm-project/pull/75092
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