From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: peter.maydell@linaro.org, qemu-arm@nongnu.org
Subject: [Qemu-devel] [PATCH 1/2] target/arm: Tidy conditions in handle_vec_simd_shri
Date: Tue, 1 May 2018 11:04:54 -0700 [thread overview]
Message-ID: <20180501180455.11214-2-richard.henderson@linaro.org> (raw)
In-Reply-To: <20180501180455.11214-1-richard.henderson@linaro.org>
The (size > 3 && !is_q) condition is identical to the preceeding test
of bit 3 in immh; eliminate it. For the benefit of Coverity, assert
that size is within the bounds we expect.
Fixes: Coverity CID1385846
Fixes: Coverity CID1385849
Fixes: Coverity CID1385852
Fixes: Coverity CID1385857
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
target/arm/translate-a64.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index bff4e13bf6..97950dce1a 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -9019,11 +9019,7 @@ static void handle_vec_simd_shri(DisasContext *s, bool is_q, bool is_u,
unallocated_encoding(s);
return;
}
-
- if (size > 3 && !is_q) {
- unallocated_encoding(s);
- return;
- }
+ tcg_debug_assert(size <= 3);
if (!fp_access_check(s)) {
return;
--
2.14.3
next prev parent reply other threads:[~2018-05-01 18:05 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-01 18:04 [Qemu-devel] [PATCH 0/2] target/arm: Coverity fixups Richard Henderson
2018-05-01 18:04 ` Richard Henderson [this message]
2018-05-02 9:46 ` [Qemu-devel] [Qemu-arm] [PATCH 1/2] target/arm: Tidy conditions in handle_vec_simd_shri Alex Bennée
2018-05-01 18:04 ` [Qemu-devel] [PATCH 2/2] target/arm: Tidy condition in disas_simd_two_reg_misc Richard Henderson
2018-05-02 9:47 ` [Qemu-devel] [Qemu-arm] " Alex Bennée
2018-05-03 15:05 ` [Qemu-devel] [PATCH 0/2] target/arm: Coverity fixups Peter Maydell
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