diff mbox series

[v2,44/81] tcg/sparc64: Use SRA, SRL for {s}extract_i64

Message ID 20250107080112.1175095-45-richard.henderson@linaro.org
State New
Headers show
Series tcg: Merge *_i32 and *_i64 opcodes | expand

Commit Message

Richard Henderson Jan. 7, 2025, 8 a.m. UTC
Extracts which abut bit 32 may use 32-bit shifts.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 tcg/sparc64/tcg-target-has.h |  9 +++++++--
 tcg/sparc64/tcg-target.c.inc | 11 +++++++++++
 2 files changed, 18 insertions(+), 2 deletions(-)

Comments

Philippe Mathieu-Daudé Jan. 9, 2025, 11 p.m. UTC | #1
On 7/1/25 09:00, Richard Henderson wrote:
> Extracts which abut bit 32 may use 32-bit shifts.
> 
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
> ---
>   tcg/sparc64/tcg-target-has.h |  9 +++++++--
>   tcg/sparc64/tcg-target.c.inc | 11 +++++++++++
>   2 files changed, 18 insertions(+), 2 deletions(-)
> 
> diff --git a/tcg/sparc64/tcg-target-has.h b/tcg/sparc64/tcg-target-has.h
> index d9ca14cc3d..2db461efed 100644
> --- a/tcg/sparc64/tcg-target-has.h
> +++ b/tcg/sparc64/tcg-target-has.h

Missing:

-- >8 --
@@ -33,8 +33,8 @@ extern bool use_vis3_instructions;
  #define TCG_TARGET_HAS_ctz_i32          0
  #define TCG_TARGET_HAS_ctpop_i32        0
  #define TCG_TARGET_HAS_deposit_i32      0
-#define TCG_TARGET_HAS_extract_i32      0
-#define TCG_TARGET_HAS_sextract_i32     0
+#define TCG_TARGET_HAS_extract_i32      1
+#define TCG_TARGET_HAS_sextract_i32     1
  #define TCG_TARGET_HAS_extract2_i32     0
  #define TCG_TARGET_HAS_negsetcond_i32   1
  #define TCG_TARGET_HAS_add2_i32         1
---

> @@ -68,8 +68,8 @@ extern bool use_vis3_instructions;
>   #define TCG_TARGET_HAS_ctz_i64          0
>   #define TCG_TARGET_HAS_ctpop_i64        0
>   #define TCG_TARGET_HAS_deposit_i64      0
> -#define TCG_TARGET_HAS_extract_i64      0
> -#define TCG_TARGET_HAS_sextract_i64     0
> +#define TCG_TARGET_HAS_extract_i64      1
> +#define TCG_TARGET_HAS_sextract_i64     1
>   #define TCG_TARGET_HAS_extract2_i64     0
>   #define TCG_TARGET_HAS_negsetcond_i64   1
>   #define TCG_TARGET_HAS_add2_i64         1
> @@ -83,4 +83,9 @@ extern bool use_vis3_instructions;
>   
>   #define TCG_TARGET_HAS_tst              1
>   
> +#define TCG_TARGET_extract_valid(type, ofs, len) \
> +    ((type) == TCG_TYPE_I64 && (ofs) + (len) == 32)
> +
> +#define TCG_TARGET_sextract_valid  TCG_TARGET_extract_valid
> +
>   #endif
Philippe Mathieu-Daudé Jan. 9, 2025, 11:44 p.m. UTC | #2
On 10/1/25 00:00, Philippe Mathieu-Daudé wrote:
> On 7/1/25 09:00, Richard Henderson wrote:
>> Extracts which abut bit 32 may use 32-bit shifts.
>>
>> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
>> ---
>>   tcg/sparc64/tcg-target-has.h |  9 +++++++--
>>   tcg/sparc64/tcg-target.c.inc | 11 +++++++++++
>>   2 files changed, 18 insertions(+), 2 deletions(-)
>>
>> diff --git a/tcg/sparc64/tcg-target-has.h b/tcg/sparc64/tcg-target-has.h
>> index d9ca14cc3d..2db461efed 100644
>> --- a/tcg/sparc64/tcg-target-has.h
>> +++ b/tcg/sparc64/tcg-target-has.h
> 
> Missing:
> 
> -- >8 --
> @@ -33,8 +33,8 @@ extern bool use_vis3_instructions;
>   #define TCG_TARGET_HAS_ctz_i32          0
>   #define TCG_TARGET_HAS_ctpop_i32        0
>   #define TCG_TARGET_HAS_deposit_i32      0
> -#define TCG_TARGET_HAS_extract_i32      0
> -#define TCG_TARGET_HAS_sextract_i32     0
> +#define TCG_TARGET_HAS_extract_i32      1
> +#define TCG_TARGET_HAS_sextract_i32     1
>   #define TCG_TARGET_HAS_extract2_i32     0
>   #define TCG_TARGET_HAS_negsetcond_i32   1
>   #define TCG_TARGET_HAS_add2_i32         1
> ---

Otherwise patch LGTM, so with that squashed:
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>

> 
>> @@ -68,8 +68,8 @@ extern bool use_vis3_instructions;
>>   #define TCG_TARGET_HAS_ctz_i64          0
>>   #define TCG_TARGET_HAS_ctpop_i64        0
>>   #define TCG_TARGET_HAS_deposit_i64      0
>> -#define TCG_TARGET_HAS_extract_i64      0
>> -#define TCG_TARGET_HAS_sextract_i64     0
>> +#define TCG_TARGET_HAS_extract_i64      1
>> +#define TCG_TARGET_HAS_sextract_i64     1
>>   #define TCG_TARGET_HAS_extract2_i64     0
>>   #define TCG_TARGET_HAS_negsetcond_i64   1
>>   #define TCG_TARGET_HAS_add2_i64         1
>> @@ -83,4 +83,9 @@ extern bool use_vis3_instructions;
>>   #define TCG_TARGET_HAS_tst              1
>> +#define TCG_TARGET_extract_valid(type, ofs, len) \
>> +    ((type) == TCG_TYPE_I64 && (ofs) + (len) == 32)
>> +
>> +#define TCG_TARGET_sextract_valid  TCG_TARGET_extract_valid
>> +
>>   #endif
>
Philippe Mathieu-Daudé Jan. 9, 2025, 11:45 p.m. UTC | #3
On 10/1/25 00:44, Philippe Mathieu-Daudé wrote:
> On 10/1/25 00:00, Philippe Mathieu-Daudé wrote:
>> On 7/1/25 09:00, Richard Henderson wrote:
>>> Extracts which abut bit 32 may use 32-bit shifts.

(Fix typos?)

>>>
>>> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
>>> ---
>>>   tcg/sparc64/tcg-target-has.h |  9 +++++++--
>>>   tcg/sparc64/tcg-target.c.inc | 11 +++++++++++
>>>   2 files changed, 18 insertions(+), 2 deletions(-)
>>>
>>> diff --git a/tcg/sparc64/tcg-target-has.h b/tcg/sparc64/tcg-target-has.h
>>> index d9ca14cc3d..2db461efed 100644
>>> --- a/tcg/sparc64/tcg-target-has.h
>>> +++ b/tcg/sparc64/tcg-target-has.h
>>
>> Missing:
>>
>> -- >8 --
>> @@ -33,8 +33,8 @@ extern bool use_vis3_instructions;
>>   #define TCG_TARGET_HAS_ctz_i32          0
>>   #define TCG_TARGET_HAS_ctpop_i32        0
>>   #define TCG_TARGET_HAS_deposit_i32      0
>> -#define TCG_TARGET_HAS_extract_i32      0
>> -#define TCG_TARGET_HAS_sextract_i32     0
>> +#define TCG_TARGET_HAS_extract_i32      1
>> +#define TCG_TARGET_HAS_sextract_i32     1
>>   #define TCG_TARGET_HAS_extract2_i32     0
>>   #define TCG_TARGET_HAS_negsetcond_i32   1
>>   #define TCG_TARGET_HAS_add2_i32         1
>> ---
> 
> Otherwise patch LGTM, so with that squashed:
> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
> 
>>
>>> @@ -68,8 +68,8 @@ extern bool use_vis3_instructions;
>>>   #define TCG_TARGET_HAS_ctz_i64          0
>>>   #define TCG_TARGET_HAS_ctpop_i64        0
>>>   #define TCG_TARGET_HAS_deposit_i64      0
>>> -#define TCG_TARGET_HAS_extract_i64      0
>>> -#define TCG_TARGET_HAS_sextract_i64     0
>>> +#define TCG_TARGET_HAS_extract_i64      1
>>> +#define TCG_TARGET_HAS_sextract_i64     1
>>>   #define TCG_TARGET_HAS_extract2_i64     0
>>>   #define TCG_TARGET_HAS_negsetcond_i64   1
>>>   #define TCG_TARGET_HAS_add2_i64         1
>>> @@ -83,4 +83,9 @@ extern bool use_vis3_instructions;
>>>   #define TCG_TARGET_HAS_tst              1
>>> +#define TCG_TARGET_extract_valid(type, ofs, len) \
>>> +    ((type) == TCG_TYPE_I64 && (ofs) + (len) == 32)
>>> +
>>> +#define TCG_TARGET_sextract_valid  TCG_TARGET_extract_valid
>>> +
>>>   #endif
>>
>
diff mbox series

Patch

diff --git a/tcg/sparc64/tcg-target-has.h b/tcg/sparc64/tcg-target-has.h
index d9ca14cc3d..2db461efed 100644
--- a/tcg/sparc64/tcg-target-has.h
+++ b/tcg/sparc64/tcg-target-has.h
@@ -68,8 +68,8 @@  extern bool use_vis3_instructions;
 #define TCG_TARGET_HAS_ctz_i64          0
 #define TCG_TARGET_HAS_ctpop_i64        0
 #define TCG_TARGET_HAS_deposit_i64      0
-#define TCG_TARGET_HAS_extract_i64      0
-#define TCG_TARGET_HAS_sextract_i64     0
+#define TCG_TARGET_HAS_extract_i64      1
+#define TCG_TARGET_HAS_sextract_i64     1
 #define TCG_TARGET_HAS_extract2_i64     0
 #define TCG_TARGET_HAS_negsetcond_i64   1
 #define TCG_TARGET_HAS_add2_i64         1
@@ -83,4 +83,9 @@  extern bool use_vis3_instructions;
 
 #define TCG_TARGET_HAS_tst              1
 
+#define TCG_TARGET_extract_valid(type, ofs, len) \
+    ((type) == TCG_TYPE_I64 && (ofs) + (len) == 32)
+
+#define TCG_TARGET_sextract_valid  TCG_TARGET_extract_valid
+
 #endif
diff --git a/tcg/sparc64/tcg-target.c.inc b/tcg/sparc64/tcg-target.c.inc
index afc778fae7..733cb51651 100644
--- a/tcg/sparc64/tcg-target.c.inc
+++ b/tcg/sparc64/tcg-target.c.inc
@@ -1510,6 +1510,15 @@  static void tcg_out_op(TCGContext *s, TCGOpcode opc, TCGType type,
         tcg_out_mb(s, a0);
         break;
 
+    case INDEX_op_extract_i64:
+        tcg_debug_assert(a2 + args[3] == 32);
+        tcg_out_arithi(s, a0, a1, a2, SHIFT_SRL);
+        break;
+    case INDEX_op_sextract_i64:
+        tcg_debug_assert(a2 + args[3] == 32);
+        tcg_out_arithi(s, a0, a1, a2, SHIFT_SRA);
+        break;
+
     case INDEX_op_mov_i32:  /* Always emitted via tcg_out_mov.  */
     case INDEX_op_mov_i64:
     case INDEX_op_call:     /* Always emitted via tcg_out_call.  */
@@ -1559,6 +1568,8 @@  tcg_target_op_def(TCGOpcode op, TCGType type, unsigned flags)
     case INDEX_op_ext32u_i64:
     case INDEX_op_ext_i32_i64:
     case INDEX_op_extu_i32_i64:
+    case INDEX_op_extract_i64:
+    case INDEX_op_sextract_i64:
     case INDEX_op_qemu_ld_a32_i32:
     case INDEX_op_qemu_ld_a64_i32:
     case INDEX_op_qemu_ld_a32_i64: