* [PATCH] docs/devel/tcg-ops: Bury mentions of trunc_shr_i64_i32()
@ 2023-08-22 16:28 Philippe Mathieu-Daudé
2023-08-22 17:08 ` Richard Henderson
0 siblings, 1 reply; 3+ messages in thread
From: Philippe Mathieu-Daudé @ 2023-08-22 16:28 UTC (permalink / raw)
To: qemu-devel; +Cc: Richard Henderson, Paolo Bonzini, Philippe Mathieu-Daudé
Commit 609ad70562 ("tcg: Split trunc_shr_i32 opcode into
extr[lh]_i64_i32") remove trunc_shr_i64_i32(). Update the
backend documentation.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
docs/devel/tcg-ops.rst | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/docs/devel/tcg-ops.rst b/docs/devel/tcg-ops.rst
index 6a166c5665..53695e1623 100644
--- a/docs/devel/tcg-ops.rst
+++ b/docs/devel/tcg-ops.rst
@@ -882,14 +882,15 @@ sub2_i32, brcond2_i32).
On a 64 bit target, the values are transferred between 32 and 64-bit
registers using the following ops:
-- trunc_shr_i64_i32
+- extrl_i64_i32
+- extrh_i64_i32
- ext_i32_i64
- extu_i32_i64
They ensure that the values are correctly truncated or extended when
moved from a 32-bit to a 64-bit register or vice-versa. Note that the
-trunc_shr_i64_i32 is an optional op. It is not necessary to implement
-it if all the following conditions are met:
+extrl_i64_i32 and extrh_i64_i32 are optional ops. It is not necessary
+to implement them if all the following conditions are met:
- 64-bit registers can hold 32-bit values
- 32-bit values in a 64-bit register do not need to stay zero or
--
2.41.0
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] docs/devel/tcg-ops: Bury mentions of trunc_shr_i64_i32()
2023-08-22 16:28 [PATCH] docs/devel/tcg-ops: Bury mentions of trunc_shr_i64_i32() Philippe Mathieu-Daudé
@ 2023-08-22 17:08 ` Richard Henderson
2023-08-22 17:21 ` Richard Henderson
0 siblings, 1 reply; 3+ messages in thread
From: Richard Henderson @ 2023-08-22 17:08 UTC (permalink / raw)
To: Philippe Mathieu-Daudé, qemu-devel; +Cc: Paolo Bonzini
On 8/22/23 09:28, Philippe Mathieu-Daudé wrote:
> Commit 609ad70562 ("tcg: Split trunc_shr_i32 opcode into
> extr[lh]_i64_i32") remove trunc_shr_i64_i32(). Update the
> backend documentation.
>
> Signed-off-by: Philippe Mathieu-Daudé<philmd@linaro.org>
> ---
> docs/devel/tcg-ops.rst | 7 ++++---
> 1 file changed, 4 insertions(+), 3 deletions(-)
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
r~
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] docs/devel/tcg-ops: Bury mentions of trunc_shr_i64_i32()
2023-08-22 17:08 ` Richard Henderson
@ 2023-08-22 17:21 ` Richard Henderson
0 siblings, 0 replies; 3+ messages in thread
From: Richard Henderson @ 2023-08-22 17:21 UTC (permalink / raw)
To: Philippe Mathieu-Daudé, qemu-devel; +Cc: Paolo Bonzini
On 8/22/23 10:08, Richard Henderson wrote:
> On 8/22/23 09:28, Philippe Mathieu-Daudé wrote:
>> Commit 609ad70562 ("tcg: Split trunc_shr_i32 opcode into
>> extr[lh]_i64_i32") remove trunc_shr_i64_i32(). Update the
>> backend documentation.
>>
>> Signed-off-by: Philippe Mathieu-Daudé<philmd@linaro.org>
>> ---
>> docs/devel/tcg-ops.rst | 7 ++++---
>> 1 file changed, 4 insertions(+), 3 deletions(-)
>
> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
>
> r~
Queued to tcg-next.
r~
^ permalink raw reply [flat|nested] 3+ messages in thread
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2023-08-22 16:28 [PATCH] docs/devel/tcg-ops: Bury mentions of trunc_shr_i64_i32() Philippe Mathieu-Daudé
2023-08-22 17:08 ` Richard Henderson
2023-08-22 17:21 ` Richard Henderson
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