rjmccall added inline comments.

================
Comment at: clang/lib/Sema/SemaStmt.cpp:452
+                      : getCurCompoundScope().FPFeatures;
+  FPOptionsOverride FPDiff = getCurFPFeatures().diffWith(FPO);
+
----------------
How cheap is this?  Is this something it would be worthwhile to fast-path by 
maintaining a bit to check for the rare case where we have an override in a 
scope?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D123952/new/

https://reviews.llvm.org/D123952

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