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target/arm: Make VQDMULL undefined when U=1
author
Fredrik Strupe
<fredrik@strupe.net>
Wed, 8 Apr 2020 11:59:53 +0000
(13:59 +0200)
committer
Peter Maydell
<peter.maydell@linaro.org>
Mon, 4 May 2020 09:32:44 +0000
(10:32 +0100)
According to Arm ARM, VQDMULL is only valid when U=0, while having
U=1 is unallocated.
Signed-off-by: Fredrik Strupe <fredrik@strupe.net>
Fixes: 695272dcb976 ("target-arm: Handle UNDEF cases for Neon 3-regs-different-widths")
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
target/arm/translate.c
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diff --git
a/target/arm/translate.c
b/target/arm/translate.c
index d4ad2028f12ba8f007f883fda4a1192fb9c76482..e3fc7924428035a00333a485c3110a111f707365 100644
(file)
--- a/
target/arm/translate.c
+++ b/
target/arm/translate.c
@@
-6016,7
+6016,7
@@
static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
{0, 0, 0, 0}, /* VMLSL */
{0, 0, 0, 9}, /* VQDMLSL */
{0, 0, 0, 0}, /* Integer VMULL */
- {0, 0, 0,
1
}, /* VQDMULL */
+ {0, 0, 0,
9
}, /* VQDMULL */
{0, 0, 0, 0xa}, /* Polynomial VMULL */
{0, 0, 0, 7}, /* Reserved: always UNDEF */
};