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

[xry111 at mengyan1223 dot wang via Gcc-bugs]

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

--- Comment #8 from Xi Ruoyao <xry111 at mengyan1223 dot wang> ---
This is causing Glibc test failure on every port without hardware acos/asin
instruction.