[Bug middle-end/95115] RISC-V 64: inf/inf division optimized out, invalid operation not raised

[cvs-commit at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95115

--- Comment #9 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Xi Ruoyao <xry...@gcc.gnu.org>:

https://gcc.gnu.org/g:34afa19d29c5bf0b0f504e4d0aca4e9a8bc82c5c

commit r12-6959-g34afa19d29c5bf0b0f504e4d0aca4e9a8bc82c5c
Author: Xi Ruoyao <xry...@mengyan1223.wang>
Date:   Mon Jan 31 01:15:20 2022 +0800

    fold-const: do not fold NaN result from non-NaN operands [PR95115]

    These operations should raise an invalid operation exception at runtime.
    So they should not be folded during compilation unless -fno-trapping-math
    is used.

    gcc/
            PR middle-end/95115
            * fold-const.cc (const_binop): Do not fold NaN result from
              non-NaN operands.

    gcc/testsuite
            * gcc.dg/pr95115.c: New test.