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target/arm: Move endian adjustment macros to vec_internal.h 

We have two copies of these, one set of which is not complete.
Move them to a common header.

Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210525010358.152808-82-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2021-05-24 18:03:47 -07:00 committed by Peter Maydell
parent a5421b54c4
commit 93966af1d3
3 changed files with 24 additions and 28 deletions
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16
target/arm/sve_helper.c
View File

@ -29,22 +29,6 @@
#include "vec_internal.h"
/* Note that vector data is stored in host-endian 64-bit chunks,
so addressing units smaller than that needs a host-endian fixup. */
#ifdef HOST_WORDS_BIGENDIAN
#define H1(x) ((x) ^ 7)
#define H1_2(x) ((x) ^ 6)
#define H1_4(x) ((x) ^ 4)
#define H2(x) ((x) ^ 3)
#define H4(x) ((x) ^ 1)
#else
#define H1(x) (x)
#define H1_2(x) (x)
#define H1_4(x) (x)
#define H2(x) (x)
#define H4(x) (x)
#endif
/* Return a value for NZCV as per the ARM PredTest pseudofunction.
*
* The return value has bit 31 set if N is set, bit 1 set if Z is clear,

12
target/arm/vec_helper.c
View File

@ -25,18 +25,6 @@
#include "qemu/int128.h"
#include "vec_internal.h"
/* Note that vector data is stored in host-endian 64-bit chunks,
so addressing units smaller than that needs a host-endian fixup. */
#ifdef HOST_WORDS_BIGENDIAN
#define H1(x) ((x) ^ 7)
#define H2(x) ((x) ^ 3)
#define H4(x) ((x) ^ 1)
#else
#define H1(x) (x)
#define H2(x) (x)
#define H4(x) (x)
#endif
/* Signed saturating rounding doubling multiply-accumulate high half, 8-bit */
int8_t do_sqrdmlah_b(int8_t src1, int8_t src2, int8_t src3,
bool neg, bool round)

24
target/arm/vec_internal.h
View File

@ -20,6 +20,30 @@
#ifndef TARGET_ARM_VEC_INTERNALS_H
#define TARGET_ARM_VEC_INTERNALS_H
/*
* Note that vector data is stored in host-endian 64-bit chunks,
* so addressing units smaller than that needs a host-endian fixup.
*
* The H<N> macros are used when indexing an array of elements of size N.
*
* The H1_<N> macros are used when performing byte arithmetic and then
* casting the final pointer to a type of size N.
*/
#ifdef HOST_WORDS_BIGENDIAN
#define H1(x) ((x) ^ 7)
#define H1_2(x) ((x) ^ 6)
#define H1_4(x) ((x) ^ 4)
#define H2(x) ((x) ^ 3)
#define H4(x) ((x) ^ 1)
#else
#define H1(x) (x)
#define H1_2(x) (x)
#define H1_4(x) (x)
#define H2(x) (x)
#define H4(x) (x)
#endif
static inline void clear_tail(void *vd, uintptr_t opr_sz, uintptr_t max_sz)
{
uint64_t *d = vd + opr_sz;