https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122020
--- Comment #3 from Fred J. Tydeman <tydeman at tybor dot com> ---
# flags common to both compiler and linker
export CLFLAGS="\
-fsanitize=undefined \
-fsanitize=address \
-fsanitize=bounds-strict \
-fstack-protector-all"
# flags for compiler
export CFLAGS="-H -std=c23 -O0 -march=native -mhard-float -mfpmath=387
-mieee-fp \
-enable-decimal-float=yes \
-fexcess-precision=standard \
-ffp-contract=off \
-fmath-errno \
-fno-associative-math \
-fno-builtin \
-fno-cx-limited-range \
-fno-fast-math \
-fno-finite-math-only \
-fno-reciprocal-math \
-fno-unsafe-math-optimizations \
-frounding-math \
-fsignaling-nans \
-fsigned-zeros \
-ftrapping-math \
${INCS} \
-I/usr/include/dfp"
gcc 15.2.1 on Fedora Linux 42 on Intel x86_64/x87
