diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2023-08-04 23:24:04 +0000 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2023-08-24 11:22:42 -0700 |
| commit | 3635502dd00bcfee3a6ab790d950c2fc4ace607b (patch) | |
| tree | d3a3f2e187d586a23b33af696d3c24dd11a8a114 /tcg/tcg-op.c | |
| parent | 13d885b0ad4ada4d216b0341de5ae4a9ce3f5abb (diff) | |
tcg: Introduce negsetcond opcodes
Introduce a new opcode for negative setcond.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'tcg/tcg-op.c')
| -rw-r--r-- | tcg/tcg-op.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/tcg/tcg-op.c b/tcg/tcg-op.c index 68b93a3d4b..a954004cff 100644 --- a/tcg/tcg-op.c +++ b/tcg/tcg-op.c @@ -276,6 +276,21 @@ void tcg_gen_setcondi_i32(TCGCond cond, TCGv_i32 ret, tcg_gen_setcond_i32(cond, ret, arg1, tcg_constant_i32(arg2)); } +void tcg_gen_negsetcond_i32(TCGCond cond, TCGv_i32 ret, + TCGv_i32 arg1, TCGv_i32 arg2) +{ + if (cond == TCG_COND_ALWAYS) { + tcg_gen_movi_i32(ret, -1); + } else if (cond == TCG_COND_NEVER) { + tcg_gen_movi_i32(ret, 0); + } else if (TCG_TARGET_HAS_negsetcond_i32) { + tcg_gen_op4i_i32(INDEX_op_negsetcond_i32, ret, arg1, arg2, cond); + } else { + tcg_gen_setcond_i32(cond, ret, arg1, arg2); + tcg_gen_neg_i32(ret, ret); + } +} + void tcg_gen_muli_i32(TCGv_i32 ret, TCGv_i32 arg1, int32_t arg2) { if (arg2 == 0) { @@ -1567,6 +1582,27 @@ void tcg_gen_setcondi_i64(TCGCond cond, TCGv_i64 ret, } } +void tcg_gen_negsetcond_i64(TCGCond cond, TCGv_i64 ret, + TCGv_i64 arg1, TCGv_i64 arg2) +{ + if (cond == TCG_COND_ALWAYS) { + tcg_gen_movi_i64(ret, -1); + } else if (cond == TCG_COND_NEVER) { + tcg_gen_movi_i64(ret, 0); + } else if (TCG_TARGET_HAS_negsetcond_i64) { + tcg_gen_op4i_i64(INDEX_op_negsetcond_i64, ret, arg1, arg2, cond); + } else if (TCG_TARGET_REG_BITS == 32) { + tcg_gen_op6i_i32(INDEX_op_setcond2_i32, TCGV_LOW(ret), + TCGV_LOW(arg1), TCGV_HIGH(arg1), + TCGV_LOW(arg2), TCGV_HIGH(arg2), cond); + tcg_gen_neg_i32(TCGV_LOW(ret), TCGV_LOW(ret)); + tcg_gen_mov_i32(TCGV_HIGH(ret), TCGV_LOW(ret)); + } else { + tcg_gen_setcond_i64(cond, ret, arg1, arg2); + tcg_gen_neg_i64(ret, ret); + } +} + void tcg_gen_muli_i64(TCGv_i64 ret, TCGv_i64 arg1, int64_t arg2) { if (arg2 == 0) { |