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| author | Richard Henderson <richard.henderson@linaro.org> | 2019-02-25 10:58:15 -0800 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2019-04-24 13:04:33 -0700 |
| commit | 02616bad6f0788652deaca9a48d0dfa7716ff87a (patch) | |
| tree | 916943aa56e446b4a43aee00f0cc05c9f9fda345 /tcg | |
| parent | fce1296f135669eca85dc42154a2a352c818ad76 (diff) | |
| download | qemu-02616bad6f0788652deaca9a48d0dfa7716ff87a.zip | |
tcg: Use deposit and extract2 in tcg_gen_shifti_i64
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'tcg')
| -rw-r--r-- | tcg/tcg-op.c | 43 |
1 files changed, 22 insertions, 21 deletions
diff --git a/tcg/tcg-op.c b/tcg/tcg-op.c index deacc63e3b..fbc70649dd 100644 --- a/tcg/tcg-op.c +++ b/tcg/tcg-op.c @@ -1355,31 +1355,32 @@ static inline void tcg_gen_shifti_i64(TCGv_i64 ret, TCGv_i64 arg1, tcg_gen_shli_i32(TCGV_HIGH(ret), TCGV_LOW(arg1), c); tcg_gen_movi_i32(TCGV_LOW(ret), 0); } - } else { - TCGv_i32 t0, t1; - - t0 = tcg_temp_new_i32(); - t1 = tcg_temp_new_i32(); - if (right) { - tcg_gen_shli_i32(t0, TCGV_HIGH(arg1), 32 - c); - if (arith) { - tcg_gen_sari_i32(t1, TCGV_HIGH(arg1), c); - } else { - tcg_gen_shri_i32(t1, TCGV_HIGH(arg1), c); - } + } else if (right) { + if (TCG_TARGET_HAS_extract2_i32) { + tcg_gen_extract2_i32(TCGV_LOW(ret), + TCGV_LOW(arg1), TCGV_HIGH(arg1), c); + } else { tcg_gen_shri_i32(TCGV_LOW(ret), TCGV_LOW(arg1), c); - tcg_gen_or_i32(TCGV_LOW(ret), TCGV_LOW(ret), t0); - tcg_gen_mov_i32(TCGV_HIGH(ret), t1); + tcg_gen_deposit_i32(TCGV_LOW(ret), TCGV_LOW(ret), + TCGV_HIGH(arg1), 32 - c, c); + } + if (arith) { + tcg_gen_sari_i32(TCGV_HIGH(ret), TCGV_HIGH(arg1), c); + } else { + tcg_gen_shri_i32(TCGV_HIGH(ret), TCGV_HIGH(arg1), c); + } + } else { + if (TCG_TARGET_HAS_extract2_i32) { + tcg_gen_extract2_i32(TCGV_HIGH(ret), + TCGV_LOW(arg1), TCGV_HIGH(arg1), 32 - c); } else { + TCGv_i32 t0 = tcg_temp_new_i32(); tcg_gen_shri_i32(t0, TCGV_LOW(arg1), 32 - c); - /* Note: ret can be the same as arg1, so we use t1 */ - tcg_gen_shli_i32(t1, TCGV_LOW(arg1), c); - tcg_gen_shli_i32(TCGV_HIGH(ret), TCGV_HIGH(arg1), c); - tcg_gen_or_i32(TCGV_HIGH(ret), TCGV_HIGH(ret), t0); - tcg_gen_mov_i32(TCGV_LOW(ret), t1); + tcg_gen_deposit_i32(TCGV_HIGH(ret), t0, + TCGV_HIGH(arg1), c, 32 - c); + tcg_temp_free_i32(t0); } - tcg_temp_free_i32(t0); - tcg_temp_free_i32(t1); + tcg_gen_shli_i32(TCGV_LOW(ret), TCGV_LOW(arg1), c); } } |