[PATCH] D96406: [Msan, NewPM] Reduce size of msan binaries

[Evgenii Stepanov via Phabricator via cfe-commits]

eugenis accepted this revision.
eugenis added a comment.
This revision is now accepted and ready to land.

LGTM, please add a TODO for more passes



================
Comment at: clang/lib/CodeGen/BackendUtil.cpp:1291
+              // general purpose optimization passes.
+              FPM.addPass(EarlyCSEPass());
+            }
----------------
I did not know that MSan does not add the extra optimization passes in the new pass manager (see addGeneralOptsForMemorySanitizer). If I remember correctly, it used to give ~10% or more speedup on spec2006.



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https://reviews.llvm.org/D96406