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# 08bb5d91 23-Oct-2020 Serge Pavlov <[email protected]>

[FPEnv] Tests for rounding properties of constant evalution

These are moved from D88498.

Differential Revision: https://reviews.llvm.org/D90026


# 7e801ca0 14-Oct-2020 Richard Smith <[email protected]>

Treat constant contexts as being in the default rounding mode.

This addresses a regression where pretty much all C++ compilations using
-frounding-math now fail, due to rounding being performed in c

Treat constant contexts as being in the default rounding mode.

This addresses a regression where pretty much all C++ compilations using
-frounding-math now fail, due to rounding being performed in constexpr
function definitions in the standard library.

This follows the "manifestly constant evaluated" approach described in
https://reviews.llvm.org/D87528#2270676 -- evaluations that are required
to succeed at compile time are permitted even in regions with dynamic
rounding modes, as are (unfortunately) the evaluation of the
initializers of local variables of const integral types.

Differential Revision: https://reviews.llvm.org/D89360

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