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| author | Richard Henderson <richard.henderson@linaro.org> | 2022-10-20 08:00:51 +1000 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2023-02-04 06:19:42 -1000 |
| commit | 4771e71c28eb0cece2a17a2d891bbd724bdc158d (patch) | |
| tree | e8a049b8b1e57ec88ed6a08559a8c806e6dcb98f /tcg | |
| parent | 43eef72f41093ae4a94ffddc94aeef80a2fb5c69 (diff) | |
| download | qemu-4771e71c28eb0cece2a17a2d891bbd724bdc158d.zip qemu-4771e71c28eb0cece2a17a2d891bbd724bdc158d.tar.gz qemu-4771e71c28eb0cece2a17a2d891bbd724bdc158d.tar.bz2 | |
tcg: Add basic data movement for TCGv_i128
Add code generation functions for data movement between
TCGv_i128 (mov) and to/from TCGv_i64 (concat, extract).
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'tcg')
| -rw-r--r-- | tcg/tcg-internal.h | 13 | ||||
| -rw-r--r-- | tcg/tcg-op.c | 20 |
2 files changed, 33 insertions, 0 deletions
diff --git a/tcg/tcg-internal.h b/tcg/tcg-internal.h index 33f1d8b..e542a4e 100644 --- a/tcg/tcg-internal.h +++ b/tcg/tcg-internal.h @@ -117,4 +117,17 @@ extern TCGv_i32 TCGV_LOW(TCGv_i64) QEMU_ERROR("32-bit code path is reachable"); extern TCGv_i32 TCGV_HIGH(TCGv_i64) QEMU_ERROR("32-bit code path is reachable"); #endif +static inline TCGv_i64 TCGV128_LOW(TCGv_i128 t) +{ + /* For 32-bit, offset by 2, which may then have TCGV_{LOW,HIGH} applied. */ + int o = HOST_BIG_ENDIAN ? 64 / TCG_TARGET_REG_BITS : 0; + return temp_tcgv_i64(tcgv_i128_temp(t) + o); +} + +static inline TCGv_i64 TCGV128_HIGH(TCGv_i128 t) +{ + int o = HOST_BIG_ENDIAN ? 0 : 64 / TCG_TARGET_REG_BITS; + return temp_tcgv_i64(tcgv_i128_temp(t) + o); +} + #endif /* TCG_INTERNAL_H */ diff --git a/tcg/tcg-op.c b/tcg/tcg-op.c index 326a918..cb83d23 100644 --- a/tcg/tcg-op.c +++ b/tcg/tcg-op.c @@ -2747,6 +2747,26 @@ void tcg_gen_extr32_i64(TCGv_i64 lo, TCGv_i64 hi, TCGv_i64 arg) tcg_gen_shri_i64(hi, arg, 32); } +void tcg_gen_extr_i128_i64(TCGv_i64 lo, TCGv_i64 hi, TCGv_i128 arg) +{ + tcg_gen_mov_i64(lo, TCGV128_LOW(arg)); + tcg_gen_mov_i64(hi, TCGV128_HIGH(arg)); +} + +void tcg_gen_concat_i64_i128(TCGv_i128 ret, TCGv_i64 lo, TCGv_i64 hi) +{ + tcg_gen_mov_i64(TCGV128_LOW(ret), lo); + tcg_gen_mov_i64(TCGV128_HIGH(ret), hi); +} + +void tcg_gen_mov_i128(TCGv_i128 dst, TCGv_i128 src) +{ + if (dst != src) { + tcg_gen_mov_i64(TCGV128_LOW(dst), TCGV128_LOW(src)); + tcg_gen_mov_i64(TCGV128_HIGH(dst), TCGV128_HIGH(src)); + } +} + /* QEMU specific operations. */ void tcg_gen_exit_tb(const TranslationBlock *tb, unsigned idx) |