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target/arm: Mark RDFFR, WRFFR, SETFFR as non-streaming 

Mark these as a non-streaming instructions, which should trap
if full a64 support is not enabled in streaming mode.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-6-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2022-07-08 20:45:00 +05:30 committed by Peter Maydell
parent 7160c8c55a
commit 39001c6b9b
2 changed files with 6 additions and 5 deletions
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2
target/arm/sme-fa64.decode
View File

@ -61,8 +61,6 @@ FAIL 0001 1110 0111 1110 0000 00-- ---- ---- # FJCVTZS
FAIL 0000 0100 --1- ---- 1011 -0-- ---- ---- # FTSSEL, FEXPA
FAIL 0000 0101 --10 0001 100- ---- ---- ---- # COMPACT
FAIL 0010 0101 --01 100- 1111 000- ---0 ---- # RDFFR, RDFFRS
FAIL 0010 0101 --10 1--- 1001 ---- ---- ---- # WRFFR, SETFFR
FAIL 0100 0101 --0- ---- 1011 ---- ---- ---- # BDEP, BEXT, BGRP
FAIL 0100 0101 000- ---- 0110 1--- ---- ---- # PMULLB, PMULLT (128b result)
FAIL 0110 0100 --1- ---- 1110 01-- ---- ---- # FMMLA, BFMMLA

9
target/arm/translate-sve.c
View File

@ -1785,7 +1785,8 @@ static bool do_predset(DisasContext *s, int esz, int rd, int pat, bool setflag)
TRANS_FEAT(PTRUE, aa64_sve, do_predset, a->esz, a->rd, a->pat, a->s)
/* Note pat == 31 is #all, to set all elements. */
TRANS_FEAT(SETFFR, aa64_sve, do_predset, 0, FFR_PRED_NUM, 31, false)
TRANS_FEAT_NONSTREAMING(SETFFR, aa64_sve,
do_predset, 0, FFR_PRED_NUM, 31, false)
/* Note pat == 32 is #unimp, to set no elements. */
TRANS_FEAT(PFALSE, aa64_sve, do_predset, 0, a->rd, 32, false)
@ -1799,11 +1800,13 @@ static bool trans_RDFFR_p(DisasContext *s, arg_RDFFR_p *a)
.rd = a->rd, .pg = a->pg, .s = a->s,
.rn = FFR_PRED_NUM, .rm = FFR_PRED_NUM,
};
s->is_nonstreaming = true;
return trans_AND_pppp(s, &alt_a);
}
TRANS_FEAT(RDFFR, aa64_sve, do_mov_p, a->rd, FFR_PRED_NUM)
TRANS_FEAT(WRFFR, aa64_sve, do_mov_p, FFR_PRED_NUM, a->rn)
TRANS_FEAT_NONSTREAMING(RDFFR, aa64_sve, do_mov_p, a->rd, FFR_PRED_NUM)
TRANS_FEAT_NONSTREAMING(WRFFR, aa64_sve, do_mov_p, FFR_PRED_NUM, a->rn)
static bool do_pfirst_pnext(DisasContext *s, arg_rr_esz *a,
void (*gen_fn)(TCGv_i32, TCGv_ptr,