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[PULL 16/40] tcg: Add basic data movement for TCGv_i128
From: |
Richard Henderson |
Subject: |
[PULL 16/40] tcg: Add basic data movement for TCGv_i128 |
Date: |
Sat, 4 Feb 2023 06:32:46 -1000 |
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>
---
include/tcg/tcg-op.h | 4 ++++
tcg/tcg-internal.h | 13 +++++++++++++
tcg/tcg-op.c | 20 ++++++++++++++++++++
3 files changed, 37 insertions(+)
diff --git a/include/tcg/tcg-op.h b/include/tcg/tcg-op.h
index 79b1cf786f..c4276767d1 100644
--- a/include/tcg/tcg-op.h
+++ b/include/tcg/tcg-op.h
@@ -712,6 +712,10 @@ void tcg_gen_extrh_i64_i32(TCGv_i32 ret, TCGv_i64 arg);
void tcg_gen_extr_i64_i32(TCGv_i32 lo, TCGv_i32 hi, TCGv_i64 arg);
void tcg_gen_extr32_i64(TCGv_i64 lo, TCGv_i64 hi, TCGv_i64 arg);
+void tcg_gen_mov_i128(TCGv_i128 dst, TCGv_i128 src);
+void tcg_gen_extr_i128_i64(TCGv_i64 lo, TCGv_i64 hi, TCGv_i128 arg);
+void tcg_gen_concat_i64_i128(TCGv_i128 ret, TCGv_i64 lo, TCGv_i64 hi);
+
static inline void tcg_gen_concat32_i64(TCGv_i64 ret, TCGv_i64 lo, TCGv_i64 hi)
{
tcg_gen_deposit_i64(ret, lo, hi, 32, 32);
diff --git a/tcg/tcg-internal.h b/tcg/tcg-internal.h
index 33f1d8b411..e542a4e9b7 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 326a9180ef..cb83d2375d 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)
--
2.34.1
- [PULL 00/40] tcg patch queue, Richard Henderson, 2023/02/04
- [PULL 09/40] tcg: Add TCG_CALL_RET_BY_VEC, Richard Henderson, 2023/02/04
- [PULL 10/40] include/qemu/int128: Use Int128 structure for TCI, Richard Henderson, 2023/02/04
- [PULL 03/40] tcg: Define TCG_TYPE_I128 and related helper macros, Richard Henderson, 2023/02/04
- [PULL 16/40] tcg: Add basic data movement for TCGv_i128,
Richard Henderson <=
- [PULL 08/40] tcg: Introduce tcg_target_call_oarg_reg, Richard Henderson, 2023/02/04
- [PULL 13/40] tcg/tci: Add TCG_TARGET_CALL_{RET,ARG}_I128, Richard Henderson, 2023/02/04
- [PULL 06/40] tcg: Introduce tcg_out_addi_ptr, Richard Henderson, 2023/02/04
- [PULL 12/40] tcg/tci: Fix big-endian return register ordering, Richard Henderson, 2023/02/04
- [PULL 14/40] tcg: Add TCG_TARGET_CALL_{RET,ARG}_I128, Richard Henderson, 2023/02/04
- [PULL 05/40] tcg: Allocate objects contiguously in temp_allocate_frame, Richard Henderson, 2023/02/04
- [PULL 07/40] tcg: Add TCG_CALL_{RET,ARG}_BY_REF, Richard Henderson, 2023/02/04
- [PULL 02/40] tcg: Init temp_subindex in liveness_pass_2, Richard Henderson, 2023/02/04
- [PULL 01/40] accel/tcg: Test CPUJumpCache in tb_jmp_cache_clear_page, Richard Henderson, 2023/02/04
- [PULL 11/40] tcg/i386: Add TCG_TARGET_CALL_{RET,ARG}_I128, Richard Henderson, 2023/02/04