diff --git a/qemu/tcg/tcg-op.c b/qemu/tcg/tcg-op.c index 215220bf..17b2b312 100644 --- a/qemu/tcg/tcg-op.c +++ b/qemu/tcg/tcg-op.c @@ -611,9 +611,22 @@ void tcg_gen_deposit_i32(TCGContext *s, TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 ar return; } - mask = (1u << len) - 1; t1 = tcg_temp_new_i32(s); + if (TCG_TARGET_HAS_extract2_i32) { + if (ofs + len == 32) { + tcg_gen_shli_i32(s, t1, arg1, len); + tcg_gen_extract2_i32(s, ret, t1, arg2, len); + goto done; + } + if (ofs == 0) { + tcg_gen_extract2_i32(s, ret, arg1, arg2, len); + tcg_gen_rotli_i32(s, ret, ret, len); + goto done; + } + } + + mask = (1u << len) - 1; if (ofs + len < 32) { tcg_gen_andi_i32(s, t1, arg2, mask); tcg_gen_shli_i32(s, t1, t1, ofs); @@ -623,6 +636,7 @@ void tcg_gen_deposit_i32(TCGContext *s, TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 ar tcg_gen_andi_i32(s, ret, arg1, ~(mask << ofs)); tcg_gen_or_i32(s, ret, ret, t1); + done: tcg_temp_free_i32(s, t1); } @@ -2032,9 +2046,22 @@ void tcg_gen_deposit_i64(TCGContext *s, TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 ar } } - mask = (1ull << len) - 1; t1 = tcg_temp_new_i64(s); + if (TCG_TARGET_HAS_extract2_i64) { + if (ofs + len == 64) { + tcg_gen_shli_i64(s, t1, arg1, len); + tcg_gen_extract2_i64(s, ret, t1, arg2, len); + goto done; + } + if (ofs == 0) { + tcg_gen_extract2_i64(s, ret, arg1, arg2, len); + tcg_gen_rotli_i64(s, ret, ret, len); + goto done; + } + } + + mask = (1ull << len) - 1; if (ofs + len < 64) { tcg_gen_andi_i64(s, t1, arg2, mask); tcg_gen_shli_i64(s, t1, t1, ofs); @@ -2044,6 +2071,7 @@ void tcg_gen_deposit_i64(TCGContext *s, TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 ar tcg_gen_andi_i64(s, ret, arg1, ~(mask << ofs)); tcg_gen_or_i64(s, ret, ret, t1); + done: tcg_temp_free_i64(s, t1); }