wine/libs/musl
Martin Storsjö 3607eae620 musl: Fix limiting the float precision in intermediates.
musl itself expects to be configured to compile with either
-ffloat-store or -fexcess-precision=standard - but when imported
into Wine, those flags aren't used.

This seems to be essential for getting reasonable precision
from some math functions such as exp2() - without the expected
precision truncation, the output value of exp2() can be off by
as much as 0.2% in some cases.

As Wine doesn't build the musl sources with those flags, use
volatile to force storing/reloading floats in order to limit
their intermediate precision, as musl expects.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=56372
2024-10-14 20:23:30 +02:00
..
src musl: Fix limiting the float precision in intermediates. 2024-10-14 20:23:30 +02:00
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