GCC and mulsat functions are producing overflow warnings. about arm-rt-dsp HOT 1 OPEN

make test
rm -f obj/arm_rt_dsp.o obj/suite1.o obj/suite2.o obj/test_main.o arm_rt_dsp rt_dsp_test_runner
rm -f obj/.gcda obj/.gcno obj/*.gcov
mkdir -p obj
gcc -Wall -Wextra -std=c11 -I./include -fprofile-arcs -ftest-coverage -c tests/suite1.c -o obj/suite1.o
In file included from tests/suite1.c:8:
tests/suite1.c: In function ‘test_mulsat_q15’:
./include/arm_rt_dsp.h:70:16: warning: overflow in conversion from ‘int’ to ‘short int’ changes value from ‘-2147483648’ to ‘0’ [-Woverflow]
70 | #define Q31(x) ((q31_t)((x) < 1 ? ((x) >= -1 ? (x)*0x80000000 : 0x80000000) : 0x7FFFFFFF))
| ^
tests/suite1.c:156:64: note: in expansion of macro ‘Q31’
156 | q15_t test_data_x[] = {Q15(0.5), Q15(-0.5), Q15(0.5), Q31(-1.0)};
| ^~~
./include/arm_rt_dsp.h:70:16: warning: overflow in conversion from ‘int’ to ‘short int’ changes value from ‘-2147483648’ to ‘0’ [-Woverflow]
70 | #define Q31(x) ((q31_t)((x) < 1 ? ((x) >= -1 ? (x)*0x80000000 : 0x80000000) : 0x7FFFFFFF))
| ^
tests/suite1.c:157:65: note: in expansion of macro ‘Q31’
157 | q15_t test_data_y[] = {Q15(0.5), Q15(-0.5), Q15(-0.5), Q31(-1.0)};
| ^~~
./include/arm_rt_dsp.h:70:16: warning: overflow in conversion from ‘int’ to ‘short int’ changes value from ‘2147483647’ to ‘-1’ [-Woverflow]
70 | #define Q31(x) ((q31_t)((x) < 1 ? ((x) >= -1 ? (x)*0x80000000 : 0x80000000) : 0x7FFFFFFF))
| ^
tests/suite1.c:158:67: note: in expansion of macro ‘Q31’
158 | q15_t expected_results[] = {Q15(0.25), Q15(0.25), Q15(-0.25), Q31(1.0)};

from arm-rt-dsp.