aarch64-none-linux-gnu-gcc unable to compile float expressions

[webhive]

I am building branch khadas-linux-6.1.y with fenix tool using docker and got errors related to preprocessing floating expressions.

Related issue https://bugs.launchpad.net/gcc-arm-embedded/+bug/1969997

To reproduce issue we can use the following code

int main()
    {
    float a=10000.0;
    return a/111;
    }

Now if try to compile it I am getting the following issue

khadas@9e20d77e1e56:~/fenix$ /home/khadas/fenix/build/toolchains/gcc-arm-aarch64-none-linux-gnu-mainline/bin/aarch64-none-linux-gnu-gcc -O0 -c a.c
a.c: In function ‘main’:
a.c:9:5: internal compiler error: Illegal instruction
    9 |     float a=10000.0;
      |     ^~~~~
0x1732310 diagnostic_impl(rich_location*, diagnostic_metadata const*, int, char const*, __va_list_tag (*) [1], diagnostic_t)
	???:0
0x1732f96 internal_error(char const*, ...)
	???:0
0xc24faf crash_signal(int)
	???:0
0x1935b09 __gmpn_mul_basecase
	???:0
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://bugs.linaro.org/> for instructions.

Same issues happens when building linux kernel

UPD: Same code building well with toolchain gcc-arm-aarch64-none-linux-gnu (without mainline suffix). So version 11.2-2022.02 (mainline) seems broken, but 10.3-2021.07 work well

khadas@9e20d77e1e56:~/fenix$ /home/khadas/fenix/build/toolchains/gcc-arm-aarch64-none-linux-gnu/bin/aarch64-none-linux-gnu-gcc -O0 -c a.c