[PATCH] D96449: [opt] Add helpful alternatives for -analyze under new PM

[Arthur Eubanks via Phabricator via llvm-commits]

aeubanks created this revision.
aeubanks added reviewers: asbirlea, reames.
aeubanks requested review of this revision.
Herald added a project: LLVM.
Herald added a subscriber: llvm-commits.

Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D96449

Files:
  llvm/tools/opt/opt.cpp


Index: llvm/tools/opt/opt.cpp
===================================================================
--- llvm/tools/opt/opt.cpp
+++ llvm/tools/opt/opt.cpp
@@ -762,7 +762,10 @@
   if ((EnableNewPassManager && !shouldForceLegacyPM()) ||
       PassPipeline.getNumOccurrences() > 0) {
     if (AnalyzeOnly) {
-      errs() << "Cannot specify -analyze under new pass manager\n";
+      errs() << "Cannot specify -analyze under new pass manager, either "
+                "specify '-enable-new-pm=0', or use the corresponding new pass "
+                "manager pass, e.g. '-passes=print<scalar-evolution>'. For a "
+                "full list of passes, see the '--print-passes' flag.\n";
       return 1;
     }
     if (PassPipeline.getNumOccurrences() > 0 && PassList.size() > 0) {


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