This directory contains the GNU Compiler Collection (GCC). The GNU Compiler Collection is free software. See the files whose names start with COPYING for copying permission. The manuals, and some of the runtime libraries, are under different terms; see the individual source files for details. The directory INSTALL contains copies of the installation information as HTML and plain text. The source of this information is gcc/doc/install.texi. The installation information includes details of what is included in the GCC sources and what files GCC installs. See the file gcc/doc/gcc.texi (together with other files that it includes) for usage and porting information. An online readable version of the manual is in the files gcc/doc/gcc.info*. See http://gcc.gnu.org/bugs/ for how to report bugs usefully. Copyright years on GCC source files may be listed using range notation, e.g., 1987-2012, indicating that every year in the range, inclusive, is a copyrightable year that could otherwise be listed individually.
Pan Li
authored
Form 4:
#define DEF_VEC_SAT_S_SUB_FMT_4(T, UT, MIN, MAX) \
void __attribute__((noinline)) \
vec_sat_s_sub_##T##_fmt_4 (T *out, T *op_1, T *op_2, unsigned limit) \
{ \
unsigned i; \
for (i = 0; i < limit; i++) \
{ \
T x = op_1[i]; \
T y = op_2[i]; \
T minus; \
bool overflow = __builtin_sub_overflow (x, y, &minus); \
out[i] = !overflow ? minus : x < 0 ? MIN : MAX; \
} \
}
The below test are passed for this patch.
* The rv64gcv fully regression test.
It is test only patch and obvious up to a point, will commit it
directly if no comments in next 48H.
gcc/testsuite/ChangeLog:
* gcc.target/riscv/rvv/autovec/vec_sat_arith.h: Add test helper macros.
* gcc.target/riscv/rvv/autovec/binop/vec_sat_s_sub-4-i16.c: New test.
* gcc.target/riscv/rvv/autovec/binop/vec_sat_s_sub-4-i32.c: New test.
* gcc.target/riscv/rvv/autovec/binop/vec_sat_s_sub-4-i64.c: New test.
* gcc.target/riscv/rvv/autovec/binop/vec_sat_s_sub-4-i8.c: New test.
* gcc.target/riscv/rvv/autovec/binop/vec_sat_s_sub-run-4-i16.c: New test.
* gcc.target/riscv/rvv/autovec/binop/vec_sat_s_sub-run-4-i32.c: New test.
* gcc.target/riscv/rvv/autovec/binop/vec_sat_s_sub-run-4-i64.c: New test.
* gcc.target/riscv/rvv/autovec/binop/vec_sat_s_sub-run-4-i8.c: New test.
Signed-off-by: 
Pan Li <pan2.li@intel.com>