https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109359
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
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Priority|P3 |P2
CC| |jason at gcc dot gnu.org
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
I think the fold-const.cc change is right though.
I wonder if for constant evaluation (constexpr, constinit) we shouldn't arrange
for those to be evaluated with temporarily -fno-rounding-math, I think C uses
fold_init and its START_FOLD_INIT ... END_FOLD_INIT for this purpose..
And otherwise perhaps we want dynamic initialization and do the conversion at
runtime?
Or disable the -frounding-math for all initializer folding?
What we emit is definitely wrong,
Variable which claims to have 8 bytes in size but actually has 16 under the
hood, with constants in different mode.
