Support for vmul has been present for a while, but it was lacking a test for the scalar variant.
This patch adds one, precisely noting that we do not yet use the T2 variants of vmul, which take a scalar as final argument. 2021-04-22 Christophe Lyon <christophe.l...@linaro.org> gcc/testsuite/ * gcc.target/arm/simd/mve-vmul-scalar-1: New. --- .../gcc.target/arm/simd/mve-vmul-scalar-1.c | 60 ++++++++++++++++++++++ 1 file changed, 60 insertions(+) create mode 100644 gcc/testsuite/gcc.target/arm/simd/mve-vmul-scalar-1.c diff --git a/gcc/testsuite/gcc.target/arm/simd/mve-vmul-scalar-1.c b/gcc/testsuite/gcc.target/arm/simd/mve-vmul-scalar-1.c new file mode 100644 index 0000000..22be452 --- /dev/null +++ b/gcc/testsuite/gcc.target/arm/simd/mve-vmul-scalar-1.c @@ -0,0 +1,60 @@ +/* { dg-do compile } */ +/* { dg-require-effective-target arm_v8_1m_mve_fp_ok } */ +/* { dg-add-options arm_v8_1m_mve_fp } */ +/* { dg-additional-options "-O3" } */ + +#include <stdint.h> + +#define FUNC_IMM(SIGN, TYPE, BITS, NB, OP, NAME) \ + void test_ ## NAME ##_ ## SIGN ## BITS ## x ## NB (TYPE##BITS##_t * __restrict__ dest, \ + TYPE##BITS##_t *a) { \ + int i; \ + for (i=0; i<NB; i++) { \ + dest[i] = a[i] OP 5; \ + } \ +} + +/* 128-bit vectors. */ +FUNC_IMM(s, int, 32, 4, *, vmulimm) +FUNC_IMM(u, uint, 32, 4, *, vmulimm) +FUNC_IMM(s, int, 16, 8, *, vmulimm) +FUNC_IMM(u, uint, 16, 8, *, vmulimm) +FUNC_IMM(s, int, 8, 16, *, vmulimm) +FUNC_IMM(u, uint, 8, 16, *, vmulimm) + +/* For the moment we do not select the T2 vmul variant operating on a scalar + final argument. */ +/* { dg-final { scan-assembler-times {vmul\.i32\tq[0-9]+, q[0-9]+, r[0-9]+} 2 { xfail *-*-* } } } */ +/* { dg-final { scan-assembler-times {vmul\.i16\tq[0-9]+, q[0-9]+, r[0-9]+} 2 { xfail *-*-* } } } */ +/* { dg-final { scan-assembler-times {vmul\.i8\tq[0-9]+, q[0-9]+, r[0-9]+} 2 { xfail *-*-* } } } */ + +void test_vmul_f32 (float * dest, float * a, float * b) { + int i; + for (i=0; i<4; i++) { + dest[i] = a[i] * b[1]; + } +} +void test_vmulimm_f32 (float * dest, float * a) { + int i; + for (i=0; i<4; i++) { + dest[i] = a[i] * 5.0; + } +} +/* { dg-final { scan-assembler-times {vmul\.f32\tq[0-9]+, q[0-9]+, r[0-9]+} 2 { xfail *-*-* } } } */ + +void test_vmul_f16 (__fp16 * dest, __fp16 * a, __fp16 * b) { + int i; + for (i=0; i<8; i++) { + dest[i] = a[i] * b[i]; + } +} + +/* Note that dest[i] = a[i] * 5.0f16 is not vectorized. */ +void test_vmulimm_f16 (__fp16 * dest, __fp16 * a) { + int i; + __fp16 b = 5.0f16; + for (i=0; i<8; i++) { + dest[i] = a[i] * b; + } +} +/* { dg-final { scan-assembler-times {vmul\.f16\tq[0-9]+, q[0-9]+, r[0-9]+} 2 { xfail *-*-* } } } */ -- 2.7.4