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| author | Patrick O'Neill <patrick@rivosinc.com> | 2024-08-20 11:38:20 -0700 |
|---|---|---|
| committer | Patrick O'Neill <patrick@rivosinc.com> | 2024-08-27 10:01:13 -0700 |
| commit | ac1f3a8901344759dc7c247d3749c74a0bb524b0 (patch) | |
| tree | ee0637bb9e3434dd54552e51b0fb4cf905512b6b /gcc | |
| parent | c89038c7ae8bba7160ae2963647ce90171b5dd2c (diff) | |
| download | gcc-ac1f3a8901344759dc7c247d3749c74a0bb524b0.zip gcc-ac1f3a8901344759dc7c247d3749c74a0bb524b0.tar.gz gcc-ac1f3a8901344759dc7c247d3749c74a0bb524b0.tar.bz2 | |
RISC-V: Reorder insn cost match order to match corresponding expander match order
The corresponding expander (riscv-v.cc:expand_const_vector) matches
const_vec_duplicate_p before const_vec_series_p. Reorder to match this
behavior when calculating costs.
gcc/ChangeLog:
* config/riscv/riscv.cc (riscv_const_insns): Relocate.
Signed-off-by: Patrick O'Neill <patrick@rivosinc.com>
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/riscv/riscv.cc | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/gcc/config/riscv/riscv.cc b/gcc/config/riscv/riscv.cc index 1f544c1..ca86754 100644 --- a/gcc/config/riscv/riscv.cc +++ b/gcc/config/riscv/riscv.cc @@ -2142,15 +2142,6 @@ riscv_const_insns (rtx x, bool allow_new_pseudos) ...etc. */ if (riscv_v_ext_mode_p (GET_MODE (x))) { - /* const series vector. */ - rtx base, step; - if (const_vec_series_p (x, &base, &step)) - { - /* This is not accurate, we will need to adapt the COST - * accurately according to BASE && STEP. */ - return 1; - } - rtx elt; if (const_vec_duplicate_p (x, &elt)) { @@ -2186,6 +2177,15 @@ riscv_const_insns (rtx x, bool allow_new_pseudos) return 1 + 4; /*vmv.v.x + memory access. */ } } + + /* const series vector. */ + rtx base, step; + if (const_vec_series_p (x, &base, &step)) + { + /* This cost is not accurate, we will need to adapt the COST + accurately according to BASE && STEP. */ + return 1; + } } /* TODO: We may support more const vector in the future. */ |