From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: ale@rev.ng, philmd@linaro.org, marcel.apfelbaum@gmail.com,
wangyanan55@huawei.com, anjo@rev.ng,
Nazar Kazakov <nazar.kazakov@codethink.co.uk>
Subject: [PULL v2 06/12] tcg: Add tcg_gen_gvec_rotrs
Date: Wed, 3 May 2023 08:20:56 +0100 [thread overview]
Message-ID: <20230503072221.1746802-12-richard.henderson@linaro.org> (raw)
In-Reply-To: <20230503072221.1746802-1-richard.henderson@linaro.org>
From: Nazar Kazakov <nazar.kazakov@codethink.co.uk>
Add tcg expander and helper functions for rotate right
vector with scalar operand.
Signed-off-by: Nazar Kazakov <nazar.kazakov@codethink.co.uk>
Message-Id: <20230428144757.57530-10-lawrence.hunter@codethink.co.uk>
[rth: Split out of larger patch; mask rotation count.]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
include/tcg/tcg-op-gvec.h | 2 ++
tcg/tcg-op-gvec.c | 11 +++++++++++
2 files changed, 13 insertions(+)
diff --git a/include/tcg/tcg-op-gvec.h b/include/tcg/tcg-op-gvec.h
index 6d58683171..a8183bfeab 100644
--- a/include/tcg/tcg-op-gvec.h
+++ b/include/tcg/tcg-op-gvec.h
@@ -371,6 +371,8 @@ void tcg_gen_gvec_sars(unsigned vece, uint32_t dofs, uint32_t aofs,
TCGv_i32 shift, uint32_t oprsz, uint32_t maxsz);
void tcg_gen_gvec_rotls(unsigned vece, uint32_t dofs, uint32_t aofs,
TCGv_i32 shift, uint32_t oprsz, uint32_t maxsz);
+void tcg_gen_gvec_rotrs(unsigned vece, uint32_t dofs, uint32_t aofs,
+ TCGv_i32 shift, uint32_t oprsz, uint32_t maxsz);
/*
* Perform vector shift by vector element, modulo the element size.
diff --git a/tcg/tcg-op-gvec.c b/tcg/tcg-op-gvec.c
index 9c14908a46..f51bcaa87b 100644
--- a/tcg/tcg-op-gvec.c
+++ b/tcg/tcg-op-gvec.c
@@ -3353,6 +3353,17 @@ void tcg_gen_gvec_rotls(unsigned vece, uint32_t dofs, uint32_t aofs,
do_gvec_shifts(vece, dofs, aofs, shift, oprsz, maxsz, &g);
}
+void tcg_gen_gvec_rotrs(unsigned vece, uint32_t dofs, uint32_t aofs,
+ TCGv_i32 shift, uint32_t oprsz, uint32_t maxsz)
+{
+ TCGv_i32 tmp = tcg_temp_ebb_new_i32();
+
+ tcg_gen_neg_i32(tmp, shift);
+ tcg_gen_andi_i32(tmp, tmp, (8 << vece) - 1);
+ tcg_gen_gvec_rotls(vece, dofs, aofs, tmp, oprsz, maxsz);
+ tcg_temp_free_i32(tmp);
+}
+
/*
* Expand D = A << (B % element bits)
*
--
2.34.1
next prev parent reply other threads:[~2023-05-03 7:28 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-03 7:20 [PATCH 00/84] tcg: Build once for system, once for user Richard Henderson
2023-05-03 7:20 ` [PULL v2 01/12] softmmu: Tidy dirtylimit_dirty_ring_full_time Richard Henderson
2023-05-03 7:20 ` [PATCH 01/84] tcg: Split out memory ops to tcg-op-ldst.c Richard Henderson
2023-05-03 7:20 ` [PULL v2 02/12] accel/tcg: Uncache the host address for instruction fetch when tlb size < 1 Richard Henderson
2023-05-03 7:20 ` [PATCH 02/84] tcg: Widen gen_insn_data to uint64_t Richard Henderson
2023-05-03 7:20 ` [PATCH 03/84] accel/tcg: Widen tcg-ldst.h addresses " Richard Henderson
2023-05-03 7:20 ` [PULL v2 03/12] qemu/bitops.h: Limit rotate amounts Richard Henderson
2023-05-03 7:20 ` [PULL v2 04/12] qemu/host-utils.h: Add clz and ctz functions for lower-bit integers Richard Henderson
2023-05-03 7:20 ` [PATCH 04/84] tcg: Widen helper_{ld,st}_i128 addresses to uint64_t Richard Henderson
2023-05-03 7:20 ` [PULL v2 05/12] tcg: Add tcg_gen_gvec_andcs Richard Henderson
2023-05-03 7:20 ` [PATCH 05/84] tcg: Widen helper_atomic_* addresses to uint64_t Richard Henderson
2023-05-03 7:20 ` Richard Henderson [this message]
2023-05-03 7:20 ` [PATCH 06/84] tcg: Widen tcg_gen_code pc_start argument " Richard Henderson
2023-05-03 7:20 ` [PATCH 07/84] accel/tcg: Merge gen_mem_wrapped with plugin_gen_empty_mem_callback Richard Henderson
2023-05-03 7:20 ` [PULL v2 07/12] qemu/int128: Re-shuffle Int128Alias members Richard Henderson
2023-05-03 7:21 ` [PATCH 08/84] accel/tcg: Merge do_gen_mem_cb into caller Richard Henderson
2023-05-03 7:21 ` [PULL v2 08/12] migration/xbzrle: Use __attribute__((target)) for avx512 Richard Henderson
2023-05-03 7:21 ` [PULL v2 09/12] accel/tcg: Add cpu_ld*_code_mmu Richard Henderson
2023-05-03 7:21 ` [PATCH 09/84] tcg: Reduce copies for plugin_gen_mem_callbacks Richard Henderson
2023-05-03 7:21 ` [PATCH 10/84] accel/tcg: Widen plugin_gen_empty_mem_callback to i64 Richard Henderson
2023-05-03 7:21 ` [PULL v2 10/12] tcg/loongarch64: Conditionalize tcg_out_exts_i32_i64 Richard Henderson
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