[PATCH] D126364: Fix interaction of pragma FENV_ACCESS with other pragmas

[Serge Pavlov via Phabricator via cfe-commits]

sepavloff added a comment.

In D126364#3556943 <https://reviews.llvm.org/D126364#3556943>, @efriedma wrote:

> Given we have getEffectiveRoundingMode(), I think the calls to setRoundingModeOverride shouldn't be necessary?  And if we drop those calls, we can also drop the IsRoundingModeSet variable.

In the block:

  {
  #pragma STDC FENV_ACCESS ON
      fesetround(x);
      ...
  }

floating point operations must have rounding mode `dynamic`. If handler of FENV_ACCESS does not set it, the rounding mode remains FE_TONEAREST, which is incorrect.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D126364/new/

https://reviews.llvm.org/D126364