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* [gcc r14-5778] RISC-V: Add wrapper for emit vec_extract[NFC]
@ 2023-11-23 12:10 Pan Li
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From: Pan Li @ 2023-11-23 12:10 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:ef296fb37cac12a5a10e83c16ae021a624e1238c
commit r14-5778-gef296fb37cac12a5a10e83c16ae021a624e1238c
Author: Juzhe-Zhong <juzhe.zhong@rivai.ai>
Date: Thu Nov 23 20:07:35 2023 +0800
RISC-V: Add wrapper for emit vec_extract[NFC]
Add wrapper for vec_extract since my following patch will need to call it.
gcc/ChangeLog:
* config/riscv/riscv-protos.h (emit_vec_extract): New function.
* config/riscv/riscv-v.cc (emit_vec_extract): Ditto.
* config/riscv/riscv.cc (riscv_legitimize_move): Refine codes.
Diff:
---
gcc/config/riscv/riscv-protos.h | 1 +
gcc/config/riscv/riscv-v.cc | 22 ++++++++++++++++++++++
gcc/config/riscv/riscv.cc | 12 +-----------
3 files changed, 24 insertions(+), 11 deletions(-)
diff --git a/gcc/config/riscv/riscv-protos.h b/gcc/config/riscv/riscv-protos.h
index 52097fe48cf..c74c2e94a4f 100644
--- a/gcc/config/riscv/riscv-protos.h
+++ b/gcc/config/riscv/riscv-protos.h
@@ -558,6 +558,7 @@ void expand_cond_binop (unsigned, rtx *);
void expand_cond_ternop (unsigned, rtx *);
void expand_popcount (rtx *);
void expand_rawmemchr (machine_mode, rtx, rtx, rtx);
+void emit_vec_extract (rtx, rtx, poly_int64);
/* Rounding mode bitfield for fixed point VXRM. */
enum fixed_point_rounding_mode
diff --git a/gcc/config/riscv/riscv-v.cc b/gcc/config/riscv/riscv-v.cc
index 24b09c0dd2d..72b96d8339d 100644
--- a/gcc/config/riscv/riscv-v.cc
+++ b/gcc/config/riscv/riscv-v.cc
@@ -4636,4 +4636,26 @@ can_be_broadcasted_p (rtx op)
return can_create_pseudo_p () && nonmemory_operand (op, mode);
}
+/* Helper function to emit vec_extract_optab. */
+void
+emit_vec_extract (rtx target, rtx src, poly_int64 index)
+{
+ machine_mode vmode = GET_MODE (src);
+ machine_mode smode = GET_MODE (target);
+ class expand_operand ops[3];
+ enum insn_code icode
+ = convert_optab_handler (vec_extract_optab, vmode, smode);
+ gcc_assert (icode != CODE_FOR_nothing);
+ create_output_operand (&ops[0], target, smode);
+ ops[0].target = 1;
+ create_input_operand (&ops[1], src, vmode);
+ if (index.is_constant ())
+ create_integer_operand (&ops[2], index);
+ else
+ create_input_operand (&ops[2], gen_int_mode (index, Pmode), Pmode);
+ expand_insn (icode, 3, ops);
+ if (ops[0].value != target)
+ emit_move_insn (target, ops[0].value);
+}
+
} // namespace riscv_vector
diff --git a/gcc/config/riscv/riscv.cc b/gcc/config/riscv/riscv.cc
index d0efb939bf2..425463ebb18 100644
--- a/gcc/config/riscv/riscv.cc
+++ b/gcc/config/riscv/riscv.cc
@@ -2616,14 +2616,10 @@ riscv_legitimize_move (machine_mode mode, rtx dest, rtx src)
nunits = nunits * 2;
}
vmode = riscv_vector::get_vector_mode (smode, nunits).require ();
- enum insn_code icode
- = convert_optab_handler (vec_extract_optab, vmode, smode);
- gcc_assert (icode != CODE_FOR_nothing);
rtx v = gen_lowpart (vmode, SUBREG_REG (src));
for (unsigned int i = 0; i < num; i++)
{
- class expand_operand ops[3];
rtx result;
if (num == 1)
result = dest;
@@ -2631,13 +2627,7 @@ riscv_legitimize_move (machine_mode mode, rtx dest, rtx src)
result = gen_lowpart (smode, dest);
else
result = gen_reg_rtx (smode);
- create_output_operand (&ops[0], result, smode);
- ops[0].target = 1;
- create_input_operand (&ops[1], v, vmode);
- create_integer_operand (&ops[2], index + i);
- expand_insn (icode, 3, ops);
- if (ops[0].value != result)
- emit_move_insn (result, ops[0].value);
+ riscv_vector::emit_vec_extract (result, v, index + i);
if (i == 1)
{
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2023-11-23 12:10 [gcc r14-5778] RISC-V: Add wrapper for emit vec_extract[NFC] Pan Li
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