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target/arm: Fix float16 pairwise Neon ops on big-endian hosts

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In the neon_padd/pmax/pmin helpers for float16, a cut-and-paste error
meant we were using the H4() address swizzler macro rather than the
H2() which is required for 2-byte data. This had no effect on
little-endian hosts but meant we put the result data into the
destination Dreg in the wrong order on big-endian hosts.

Backports 552714c0812a10e5cff239bd29928e5fcb8d8b3b
This commit is contained in:
Peter Maydell 2021-03-02 13:02:19 -05:00 committed by Lioncash
parent d473f66177
commit 5c6730a432
1 changed files with 4 additions and 4 deletions
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8
qemu/target/arm/vec_helper.c
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@ -1859,10 +1859,10 @@ DO_ABA(gvec_uaba_d, uint64_t)
r2 = float16_##OP(m[H2(0)], m[H2(1)], fpst); \
r3 = float16_##OP(m[H2(2)], m[H2(3)], fpst); \
\
d[H4(0)] = r0; \
d[H4(1)] = r1; \
d[H4(2)] = r2; \
d[H4(3)] = r3; \
d[H2(0)] = r0; \
d[H2(1)] = r1; \
d[H2(2)] = r2; \
d[H2(3)] = r3; \
}
DO_NEON_PAIRWISE(neon_padd, add)