diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/aarch64/aarch64.c | 22 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.target/aarch64/neoverse_v1_1.c | 15 |
2 files changed, 35 insertions, 2 deletions
diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c index fdf0550..19f6741 100644 --- a/gcc/config/aarch64/aarch64.c +++ b/gcc/config/aarch64/aarch64.c @@ -3108,6 +3108,23 @@ aarch64_vl_bytes (machine_mode mode, unsigned int vec_flags) return BYTES_PER_SVE_PRED; } +/* If MODE holds an array of vectors, return the number of vectors + in the array, otherwise return 1. */ + +static unsigned int +aarch64_ldn_stn_vectors (machine_mode mode) +{ + unsigned int vec_flags = aarch64_classify_vector_mode (mode); + if (vec_flags == (VEC_ADVSIMD | VEC_PARTIAL | VEC_STRUCT)) + return exact_div (GET_MODE_SIZE (mode), 8).to_constant (); + if (vec_flags == (VEC_ADVSIMD | VEC_STRUCT)) + return exact_div (GET_MODE_SIZE (mode), 16).to_constant (); + if (vec_flags == (VEC_SVE_DATA | VEC_STRUCT)) + return exact_div (GET_MODE_SIZE (mode), + BYTES_PER_SVE_VECTOR).to_constant (); + return 1; +} + /* Given an Advanced SIMD vector mode MODE and a tuple size NELEMS, return the corresponding vector structure mode. */ static opt_machine_mode @@ -12511,9 +12528,10 @@ aarch64_address_cost (rtx x, cost += addr_cost->pre_modify; else if (c == POST_INC || c == POST_DEC || c == POST_MODIFY) { - if (mode == CImode) + unsigned int nvectors = aarch64_ldn_stn_vectors (mode); + if (nvectors == 3) cost += addr_cost->post_modify_ld3_st3; - else if (mode == XImode) + else if (nvectors == 4) cost += addr_cost->post_modify_ld4_st4; else cost += addr_cost->post_modify; diff --git a/gcc/testsuite/gcc.target/aarch64/neoverse_v1_1.c b/gcc/testsuite/gcc.target/aarch64/neoverse_v1_1.c new file mode 100644 index 0000000..c1563f0 --- /dev/null +++ b/gcc/testsuite/gcc.target/aarch64/neoverse_v1_1.c @@ -0,0 +1,15 @@ +/* { dg-options "-O2 -mcpu=neoverse-v1" } */ + +void +foo (short *restrict x, short y[restrict][128]) +{ + for (int i = 0; i < 128; ++i) + { + y[0][i] = x[i * 3 + 0]; + y[1][i] = x[i * 3 + 1]; + y[2][i] = x[i * 3 + 2]; + } +} + +/* This shouldn't be a post-increment. */ +/* { dg-final { scan-assembler {ld3\t{[^{}]*}, \[x[0-9]+\]\n} } } */ |