diff options
| author | Juzhe-Zhong <juzhe.zhong@rivai.ai> | 2023-09-01 07:10:00 +0800 |
|---|---|---|
| committer | Pan Li <pan2.li@intel.com> | 2023-09-01 19:02:06 +0800 |
| commit | 5f2098cce6c75117927fef317c714dd2088b0189 (patch) | |
| tree | 59a4833aa0d74599edeaf7d3d20460a4c19db806 | |
| parent | ffbb19c6afc016f6dc001ad0f567d3216ff601b1 (diff) | |
| download | gcc-5f2098cce6c75117927fef317c714dd2088b0189.zip gcc-5f2098cce6c75117927fef317c714dd2088b0189.tar.gz gcc-5f2098cce6c75117927fef317c714dd2088b0189.tar.bz2 | |
RISC-V: Enable VECT_COMPARE_COSTS by default
since we have added COST framework, we by default enable VECT_COMPARE_COSTS.
Also, add 16/32/64 to provide more choices for COST comparison.
This patch doesn't change any behavior from the current testsuite since we are using
default COST model.
gcc/ChangeLog:
* config/riscv/riscv-v.cc (autovectorize_vector_modes): Enable
VECT_COMPARE_COSTS by default.
| -rw-r--r-- | gcc/config/riscv/riscv-v.cc | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/gcc/config/riscv/riscv-v.cc b/gcc/config/riscv/riscv-v.cc index 6228ff3..c8ad96f 100644 --- a/gcc/config/riscv/riscv-v.cc +++ b/gcc/config/riscv/riscv-v.cc @@ -2173,7 +2173,7 @@ autovectorize_vector_modes (vector_modes *modes, bool) full vectors for wider elements. - full_size / 8: Try using 64-bit containers for all element types. */ - static const int rvv_factors[] = {1, 2, 4, 8}; + static const int rvv_factors[] = {1, 2, 4, 8, 16, 32, 64}; for (unsigned int i = 0; i < sizeof (rvv_factors) / sizeof (int); i++) { poly_uint64 units; @@ -2183,12 +2183,8 @@ autovectorize_vector_modes (vector_modes *modes, bool) modes->safe_push (mode); } } - unsigned int flag = 0; if (TARGET_VECTOR_VLS) { - /* Enable VECT_COMPARE_COSTS between VLA modes VLS modes for scalable - auto-vectorization. */ - flag |= VECT_COMPARE_COSTS; /* Push all VLSmodes according to TARGET_MIN_VLEN. */ unsigned int i = 0; unsigned int base_size = TARGET_MIN_VLEN * riscv_autovec_lmul / 8; @@ -2201,7 +2197,8 @@ autovectorize_vector_modes (vector_modes *modes, bool) size = base_size / (1U << i); } } - return flag; + /* Enable LOOP_VINFO comparison in COST model. */ + return VECT_COMPARE_COSTS; } /* If the given VECTOR_MODE is an RVV mode, first get the largest number |