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| author | Peter Maydell | 2022-03-14 19:11:36 +0100 |
|---|---|---|
| committer | Peter Maydell | 2022-03-14 19:11:36 +0100 |
| commit | 6f4fe14b46f0a161f94e3f6e98690ac38184b0be (patch) | |
| tree | bfd6f1460aa60ff7040c4b566cdf6794be0b7cf0 | |
| parent | Merge tag 'i2c-20220314' of https://github.com/philmd/qemu into staging (diff) | |
| parent | tcg/arm: Don't emit UNPREDICTABLE LDRD with Rm == Rt or Rt+1 (diff) | |
| download | qemu-6f4fe14b46f0a161f94e3f6e98690ac38184b0be.tar.gz qemu-6f4fe14b46f0a161f94e3f6e98690ac38184b0be.tar.xz qemu-6f4fe14b46f0a161f94e3f6e98690ac38184b0be.zip | |
Merge tag 'pull-tcg-20220314' of https://gitlab.com/rth7680/qemu into staging
Fixes for s390x host vectors
Fix for arm ldrd unpredictable case
# gpg: Signature made Mon 14 Mar 2022 17:32:44 GMT
# gpg: using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg: issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A 05C0 64DF 38E8 AF7E 215F
* tag 'pull-tcg-20220314' of https://gitlab.com/rth7680/qemu:
tcg/arm: Don't emit UNPREDICTABLE LDRD with Rm == Rt or Rt+1
tcg/s390x: Fix tcg_out_dup_vec vs general registers
tcg/s390x: Fix INDEX_op_bitsel_vec vs VSEL
tcg/s390x: Fix tcg_out_dupi_vec vs VGM
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| -rw-r--r-- | tcg/arm/tcg-target.c.inc | 17 | ||||
| -rw-r--r-- | tcg/s390x/tcg-target.c.inc | 7 |
2 files changed, 19 insertions, 5 deletions
diff --git a/tcg/arm/tcg-target.c.inc b/tcg/arm/tcg-target.c.inc index e1ea69669c..4bc0420f4d 100644 --- a/tcg/arm/tcg-target.c.inc +++ b/tcg/arm/tcg-target.c.inc @@ -1689,8 +1689,21 @@ static void tcg_out_qemu_ld_index(TCGContext *s, MemOp opc, /* LDRD requires alignment; double-check that. */ if (get_alignment_bits(opc) >= MO_64 && (datalo & 1) == 0 && datahi == datalo + 1) { - tcg_out_ldrd_r(s, COND_AL, datalo, addrlo, addend); - } else if (scratch_addend) { + /* + * Rm (the second address op) must not overlap Rt or Rt + 1. + * Since datalo is aligned, we can simplify the test via alignment. + * Flip the two address arguments if that works. + */ + if ((addend & ~1) != datalo) { + tcg_out_ldrd_r(s, COND_AL, datalo, addrlo, addend); + break; + } + if ((addrlo & ~1) != datalo) { + tcg_out_ldrd_r(s, COND_AL, datalo, addend, addrlo); + break; + } + } + if (scratch_addend) { tcg_out_ld32_rwb(s, COND_AL, datalo, addend, addrlo); tcg_out_ld32_12(s, COND_AL, datahi, addend, 4); } else { diff --git a/tcg/s390x/tcg-target.c.inc b/tcg/s390x/tcg-target.c.inc index 6e65828c09..33becd7694 100644 --- a/tcg/s390x/tcg-target.c.inc +++ b/tcg/s390x/tcg-target.c.inc @@ -2675,6 +2675,7 @@ static bool tcg_out_dup_vec(TCGContext *s, TCGType type, unsigned vece, if (vece == MO_64) { return true; } + src = dst; } /* @@ -2715,7 +2716,7 @@ static void tcg_out_dupi_vec(TCGContext *s, TCGType type, unsigned vece, msb = clz32(val); lsb = 31 - ctz32(val); } - tcg_out_insn(s, VRIb, VGM, dst, lsb, msb, MO_32); + tcg_out_insn(s, VRIb, VGM, dst, msb, lsb, MO_32); return; } } else { @@ -2729,7 +2730,7 @@ static void tcg_out_dupi_vec(TCGContext *s, TCGType type, unsigned vece, msb = clz64(val); lsb = 63 - ctz64(val); } - tcg_out_insn(s, VRIb, VGM, dst, lsb, msb, MO_64); + tcg_out_insn(s, VRIb, VGM, dst, msb, lsb, MO_64); return; } } @@ -2868,7 +2869,7 @@ static void tcg_out_vec_op(TCGContext *s, TCGOpcode opc, break; case INDEX_op_bitsel_vec: - tcg_out_insn(s, VRRe, VSEL, a0, a1, a2, args[3]); + tcg_out_insn(s, VRRe, VSEL, a0, a2, args[3], a1); break; case INDEX_op_cmp_vec: |