51 lines
1.7 KiB
Diff
51 lines
1.7 KiB
Diff
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From 6a071b8797f06850073b3a095a622117e554f302 Mon Sep 17 00:00:00 2001
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From: tangbinzy <tangbin_yewu@cmss.chinamobile.com>
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Date: Mon, 9 Sep 2024 08:29:05 +0000
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Subject: [PATCH] target/arm: Fix alignment for VLD4.32 mainline inclusion
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commit 3a661024cc680104ce2cd21f8f5466dacba6f405 category: bugfix
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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---------------------------------------------------------------
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When requested, the alignment for VLD4.32 is 8 and not 16.
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See ARM documentation about VLD4 encoding:
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ebytes = 1 << UInt(size);
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if size == '10' then
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alignment = if a == '0' then 1 else 8;
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else
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alignment = if a == '0' then 1 else 4*ebytes;
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Signed-off-by: Clément Chigot <chigot@adacore.com>
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Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
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Message-id: 20220914105058.2787404-1-chigot@adacore.com
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Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Signed-off-by: tangbinzy <tangbin_yewu@cmss.chinamobile.com>
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---
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target/arm/translate-neon.c | 6 +++++-
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1 file changed, 5 insertions(+), 1 deletion(-)
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diff --git a/target/arm/translate-neon.c b/target/arm/translate-neon.c
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index dd43de558e..761fd6a755 100644
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--- a/target/arm/translate-neon.c
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+++ b/target/arm/translate-neon.c
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@@ -586,7 +586,11 @@ static bool trans_VLD_all_lanes(DisasContext *s, arg_VLD_all_lanes *a)
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case 3:
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return false;
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case 4:
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- align = pow2_align(size + 2);
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+ if (size == 2) {
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+ align = pow2_align(3);
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+ } else {
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+ align = pow2_align(size + 2);
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+ }
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break;
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default:
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g_assert_not_reached();
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--
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2.41.0.windows.1
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