erichkeane added a comment.

2 small things, @rjmccall  and @sepavloff , anything else?



================
Comment at: clang/include/clang/Basic/DiagnosticSemaKinds.td:870
+def err_pragma_fenv_requires_precise : Error<
+  "'#pragma STDC FENV_ACCESS ON' is illegal when precise is disabled">;
 def warn_cxx_ms_struct :
----------------
The last 4 can be done via selects as well!  Save a couple more spaces before 
we have to up the diagnostic id size :) 



================
Comment at: clang/include/clang/Sema/Sema.h:558
 
+  // This stacks the current state of Sema.CurFPFeatures
+  PragmaStack<unsigned> FpPragmaStack;
----------------
erichkeane wrote:
> This comment is really oddly phrased and uses the 'stack'-noun as a verb?  
> Something like: (please feel free to wordsmith): "This stack tracks the 
> current state of Sema.CurFPFeatures."?
Just needs a period at the end.


================
Comment at: clang/lib/Parse/ParsePragma.cpp:2534
+  PP.Lex(Tok);
+  if (Tok.isNot(tok::l_paren)) {
+    PP.Diag(FloatControlLoc, diag::err_expected) << tok::l_paren;
----------------
mibintc wrote:
> erichkeane wrote:
> > Replace this with BalancedDelimiterTracker instead, it gives consistent 
> > errors and are a bit easier to use.  Additionally, I think it does some 
> > fixups that allow us to recover better.
> > 
> > I'd also suggest some refactoring with the PragmaFloatControlKind if/elses 
> > below.  Perhaps handle the closing paren at the end, and do a switch-case 
> > for that handling.
> BalancedDelimiterTracker doesn't work here because there's no access to the 
> Parser object. Rewriting it would be an extensive change and I'm doubtful 
> about making this change. PragmaHandler is defined in Lex. I think there are 
> 60 pragma's that use the PragmaHandler. 
Thats unfortunate :/  That type does some nice fixup work.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D72841/new/

https://reviews.llvm.org/D72841



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