Re: [PATCH] LoongArch: Add support for b ".L1" and beq "$t0", "$t1", ".L1"

[mengqinggang <mengqinggang@loongson.cn>]

This is a question discovered during the porting of RSEQ system call, 
and other architectures support this feature.


在 2023/12/6 上午11:28, WANG Xuerui 写道:
> Hi,
>
> On 12/6/23 11:17, mengqinggang wrote:
>> Support register and symbol names enclosed in double quotation marks.
>> ---
>>   .../gas/loongarch/double_quotation_marks.d    | 11 +++++
>>   .../gas/loongarch/double_quotation_marks.s    |  2 +
>>   opcodes/loongarch-coder.c                     | 41 ++++++++++++++++---
>>   3 files changed, 48 insertions(+), 6 deletions(-)
>>   create mode 100644 
>> gas/testsuite/gas/loongarch/double_quotation_marks.d
>>   create mode 100644 
>> gas/testsuite/gas/loongarch/double_quotation_marks.s
>>
>> [snip]
>>
>> diff --git a/gas/testsuite/gas/loongarch/double_quotation_marks.s 
>> b/gas/testsuite/gas/loongarch/double_quotation_marks.s
>> new file mode 100644
>> index 00000000000..bb8acb99a40
>> --- /dev/null
>> +++ b/gas/testsuite/gas/loongarch/double_quotation_marks.s
>> @@ -0,0 +1,2 @@
>> +# Before only support beq $t0, $t1, .L1
>> +beq "$t0", "$t1", ".L1"
> May you provide some explanation as to this feature's intended use 
> case? Because it seems pointless otherwise without some kind of 
> scenario that's both valuable to support and impossible to do so 
> without this feature...