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| author | Richard Henderson <richard.henderson@linaro.org> | 2022-02-24 03:38:03 +0000 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2023-01-06 23:07:07 +0000 |
| commit | 5c837bbca66805416f94cfc7acc9ad99aa3c4396 (patch) | |
| tree | 76a6eedb12c69c49543740604ab726e260fad7bc | |
| parent | 6c9b5c0f53dfeab2937f23c85708ae5090b435a3 (diff) | |
| download | qemu-5c837bbca66805416f94cfc7acc9ad99aa3c4396.zip qemu-5c837bbca66805416f94cfc7acc9ad99aa3c4396.tar.gz qemu-5c837bbca66805416f94cfc7acc9ad99aa3c4396.tar.bz2 | |
tcg/s390x: Create tgen_cmp2 to simplify movcond
Return both regular and inverted condition codes from tgen_cmp2.
This lets us choose after the fact which comparision we want.
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
| -rw-r--r-- | tcg/s390x/tcg-target.c.inc | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/tcg/s390x/tcg-target.c.inc b/tcg/s390x/tcg-target.c.inc index bab2d67..a9e3b4a 100644 --- a/tcg/s390x/tcg-target.c.inc +++ b/tcg/s390x/tcg-target.c.inc @@ -1207,10 +1207,11 @@ static void tgen_xori(TCGContext *s, TCGReg dest, uint64_t val) } } -static int tgen_cmp(TCGContext *s, TCGType type, TCGCond c, TCGReg r1, - TCGArg c2, bool c2const, bool need_carry) +static int tgen_cmp2(TCGContext *s, TCGType type, TCGCond c, TCGReg r1, + TCGArg c2, bool c2const, bool need_carry, int *inv_cc) { bool is_unsigned = is_unsigned_cond(c); + TCGCond inv_c = tcg_invert_cond(c); S390Opcode op; if (c2const) { @@ -1221,6 +1222,7 @@ static int tgen_cmp(TCGContext *s, TCGType type, TCGCond c, TCGReg r1, } else { tcg_out_insn(s, RRE, LTGR, r1, r1); } + *inv_cc = tcg_cond_to_ltr_cond[inv_c]; return tcg_cond_to_ltr_cond[c]; } } @@ -1263,9 +1265,17 @@ static int tgen_cmp(TCGContext *s, TCGType type, TCGCond c, TCGReg r1, } exit: + *inv_cc = tcg_cond_to_s390_cond[inv_c]; return tcg_cond_to_s390_cond[c]; } +static int tgen_cmp(TCGContext *s, TCGType type, TCGCond c, TCGReg r1, + TCGArg c2, bool c2const, bool need_carry) +{ + int inv_cc; + return tgen_cmp2(s, type, c, r1, c2, c2const, need_carry, &inv_cc); +} + static void tgen_setcond(TCGContext *s, TCGType type, TCGCond cond, TCGReg dest, TCGReg c1, TCGArg c2, int c2const) { @@ -1348,7 +1358,10 @@ static void tgen_movcond(TCGContext *s, TCGType type, TCGCond c, TCGReg dest, TCGReg c1, TCGArg c2, int c2const, TCGArg v3, int v3const) { - int cc = tgen_cmp(s, type, c, c1, c2, c2const, false); + int cc, inv_cc; + + cc = tgen_cmp2(s, type, c, c1, c2, c2const, false, &inv_cc); + if (v3const) { tcg_out_insn(s, RIEg, LOCGHI, dest, v3, cc); } else { |