40 lines
1.7 KiB
Diff
40 lines
1.7 KiB
Diff
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From 0d93daee2da62d0e86d99fd561d2a973c9634d1f Mon Sep 17 00:00:00 2001
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From: qihao_yewu <qihao_yewu@cmss.chinamobile.com>
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Date: Mon, 18 Nov 2024 22:32:53 -0500
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Subject: [PATCH] target/riscv: Fix vcompress with rvv_ta_all_1s
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cheery-pick from c128d39edeff337220fc536a3e935bcba01ecb49
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vcompress packs vl or less fields into vd, so the tail starts after the
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last packed field. This could be more clearly expressed in the ISA,
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but for now this thread helps to explain it:
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https://github.com/riscv/riscv-v-spec/issues/796
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Signed-off-by: Anton Blanchard <antonb@tenstorrent.com>
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Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
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Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
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Message-ID: <20241030043538.939712-1-antonb@tenstorrent.com>
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Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
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Signed-off-by: qihao_yewu <qihao_yewu@cmss.chinamobile.com>
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---
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target/riscv/vector_helper.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c
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index c1c3a4d1ea..42ffd3a68a 100644
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--- a/target/riscv/vector_helper.c
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+++ b/target/riscv/vector_helper.c
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@@ -5045,7 +5045,7 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, void *vs2, \
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} \
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env->vstart = 0; \
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/* set tail elements to 1s */ \
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- vext_set_elems_1s(vd, vta, vl * esz, total_elems * esz); \
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+ vext_set_elems_1s(vd, vta, num * esz, total_elems * esz); \
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}
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/* Compress into vd elements of vs2 where vs1 is enabled */
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--
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2.41.0.windows.1
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