diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2022-12-02 04:05:38 +0000 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2023-01-06 23:07:07 +0000 |
| commit | 0bbf0f7acf2ba47ac549d50d2f6bc443bc27411a (patch) | |
| tree | 75da4184e7294c2b9716f65db0ef1c70ec1233c6 /tcg/s390x | |
| parent | 23d1394a6d1962bbbc8b5180e1a696c2895d89c8 (diff) | |
tcg/s390x: Support SELGR instruction in movcond
The new select instruction provides two separate register inputs,
whereas the old load-on-condition instruction overlaps one of the
register inputs with the destination.
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'tcg/s390x')
| -rw-r--r-- | tcg/s390x/tcg-target.c.inc | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/tcg/s390x/tcg-target.c.inc b/tcg/s390x/tcg-target.c.inc index 30c12052f0..ab1fb45cc2 100644 --- a/tcg/s390x/tcg-target.c.inc +++ b/tcg/s390x/tcg-target.c.inc @@ -202,6 +202,8 @@ typedef enum S390Opcode { RRFa_XRK = 0xb9f7, RRFa_XGRK = 0xb9e7, + RRFam_SELGR = 0xb9e3, + RRFc_LOCR = 0xb9f2, RRFc_LOCGR = 0xb9e2, @@ -626,12 +628,20 @@ static void tcg_out_insn_RRE(TCGContext *s, S390Opcode op, tcg_out32(s, (op << 16) | (r1 << 4) | r2); } +/* RRF-a without the m4 field */ static void tcg_out_insn_RRFa(TCGContext *s, S390Opcode op, TCGReg r1, TCGReg r2, TCGReg r3) { tcg_out32(s, (op << 16) | (r3 << 12) | (r1 << 4) | r2); } +/* RRF-a with the m4 field */ +static void tcg_out_insn_RRFam(TCGContext *s, S390Opcode op, + TCGReg r1, TCGReg r2, TCGReg r3, int m4) +{ + tcg_out32(s, (op << 16) | (r3 << 12) | (m4 << 8) | (r1 << 4) | r2); +} + static void tcg_out_insn_RRFc(TCGContext *s, S390Opcode op, TCGReg r1, TCGReg r2, int m3) { @@ -1376,6 +1386,11 @@ static void tgen_movcond_int(TCGContext *s, TCGType type, TCGReg dest, src = v4; } } else { + if (HAVE_FACILITY(MISC_INSN_EXT3)) { + /* Emit: dest = cc ? v3 : v4. */ + tcg_out_insn(s, RRFam, SELGR, dest, v3, v4, cc); + return; + } if (dest == v4) { src = v3; } else { |