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[PATCH 14/17] target/arm: Clear high SVE elements in handle_vec_simd_wsh
From: |
Richard Henderson |
Subject: |
[PATCH 14/17] target/arm: Clear high SVE elements in handle_vec_simd_wshli |
Date: |
Wed, 17 Jul 2024 16:09:00 +1000 |
AdvSIMD instructions are supposed to zero bits beyond 128.
Affects SSHLL, USHLL, SSHLL2, USHLL2.
Cc: qemu-stable@nongnu.org
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
target/arm/tcg/translate-a64.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c
index fd90752dee..d0ad6c90bc 100644
--- a/target/arm/tcg/translate-a64.c
+++ b/target/arm/tcg/translate-a64.c
@@ -10471,6 +10471,7 @@ static void handle_vec_simd_wshli(DisasContext *s, bool
is_q, bool is_u,
tcg_gen_shli_i64(tcg_rd, tcg_rd, shift);
write_vec_element(s, tcg_rd, rd, i, size + 1);
}
+ clear_vec_high(s, true, rd);
}
/* SHRN/RSHRN - Shift right with narrowing (and potential rounding) */
--
2.43.0
- [PATCH 07/17] target/arm: Convert FMAXNMV, FMINNMV, FMAXV, FMINV to decodetree, (continued)
- [PATCH 07/17] target/arm: Convert FMAXNMV, FMINNMV, FMAXV, FMINV to decodetree, Richard Henderson, 2024/07/17
- [PATCH 09/17] target/arm: Convert MOVI, FMOV, ORR, BIC (vector immediate) to decodetree, Richard Henderson, 2024/07/17
- [PATCH 06/17] target/arm: Convert ADDV, *ADDLV, *MAXV, *MINV to decodetree, Richard Henderson, 2024/07/17
- [PATCH 08/17] target/arm: Convert FMOVI (scalar, immediate) to decodetree, Richard Henderson, 2024/07/17
- [PATCH 10/17] target/arm: Introduce gen_gvec_sshr, gen_gvec_ushr, Richard Henderson, 2024/07/17
- [PATCH 12/17] target/arm: Convert handle_vec_simd_shri to decodetree, Richard Henderson, 2024/07/17
- [PATCH 13/17] target/arm: Convet handle_vec_simd_shli to decodetree, Richard Henderson, 2024/07/17
- [PATCH 11/17] target/arm: Fix whitespace near gen_srshr64_i64, Richard Henderson, 2024/07/17
- [PATCH 14/17] target/arm: Clear high SVE elements in handle_vec_simd_wshli,
Richard Henderson <=
- [PATCH 15/17] target/arm: Use {,s}extract in handle_vec_simd_wshli, Richard Henderson, 2024/07/17
- [PATCH 16/17] target/arm: Convert SSHLL, USHLL to decodetree, Richard Henderson, 2024/07/17
- [PATCH 17/17] target/arm: Push tcg_rnd into handle_shri_with_rndacc, Richard Henderson, 2024/07/17