arm: PR target/109939 Correct signedness of return type of __ssat intrinsics
As the PR says we shouldn't be using qualifier_unsigned for the return type of the __ssat intrinsics.
UNSIGNED_SAT_BINOP_UNSIGNED_IMM_QUALIFIERS already exists for that.
This was just a thinko.
This patch fixes this and the warning with -Wconversion goes away.
Bootstrapped and tested on arm-none-linux-gnueabihf.
gcc/ChangeLog:
PR target/109939
* config/arm/arm-builtins.cc (SAT_BINOP_UNSIGNED_IMM_QUALIFIERS): Use
qualifier_none for the return operand.
gcc/testsuite/ChangeLog:
PR target/109939
* gcc.target/arm/pr109939.c: New test.
(cherry picked from commit
95542a6ec4b350c653b793b7c36a8210b0e9a89d)