> On Mar 20, 2017, at 9:59 AM, Jakub Jelinek wrote:
>
> On Mon, Mar 20, 2017 at 09:23:36AM -0700, Adrian Prantl wrote:
>>
>>> On Mar 17, 2017, at 2:49 PM, David Anderson wrote:
>>>
>>> On 03/17/2017 01:18 PM, Adrian Prantl wrote:
Are these two expressions equivalent?
1. DW_OP_breg1
On Mon, Mar 20, 2017 at 09:23:36AM -0700, Adrian Prantl wrote:
>
> > On Mar 17, 2017, at 2:49 PM, David Anderson wrote:
> >
> > On 03/17/2017 01:18 PM, Adrian Prantl wrote:
> >> Are these two expressions equivalent?
> >> 1. DW_OP_breg1 0 DW_OP_breg2 0 DW_OP_plus DW_OP_stack_value
> >> 2. DW_OP_r
On 03/17/2017 09:07 AM, I wrote
> Now this is interesting wording. Because it says 'described location'.
> I think there is a strong case for arguing that a register name does
> describe a 'thing' that held a value. And it says 'register location
> description' which is precisely 2.6.1.1.3 whic
> On Mar 17, 2017, at 2:49 PM, David Anderson wrote:
>
> On 03/17/2017 01:18 PM, Adrian Prantl wrote:
>> Are these two expressions equivalent?
>> 1. DW_OP_breg1 0 DW_OP_breg2 0 DW_OP_plus DW_OP_stack_value
>> 2. DW_OP_reg1DW_OP_reg2DW_OP_plus DW_OP_stack_value
>
> In DW4 (DW5 has same t
> On Mar 17, 2017, at 3:26 PM, David Anderson wrote:
>
> On 03/17/2017 02:54 PM, Adrian Prantl wrote:
>> Would you say that the example in Appendix D, pg 291, line 23
>> DW_OP_entry_value 1 DW_OP_reg1 DW_OP_stack_value
>> is incorrect, because DW_OP_ref is not allowed outside of a register
>>
On 03/17/2017 02:54 PM, Adrian Prantl wrote:
> Would you say that the example in Appendix D, pg 291, line 23
> DW_OP_entry_value 1 DW_OP_reg1 DW_OP_stack_value
> is incorrect, because DW_OP_ref is not allowed outside of a register location
> description?
DW5 2.5.1.7:
DW_OP_entry_value
The DW_O
> On Mar 17, 2017, at 2:49 PM, David Anderson wrote:
>
> On 03/17/2017 01:18 PM, Adrian Prantl wrote:
>> Are these two expressions equivalent?
>> 1. DW_OP_breg1 0 DW_OP_breg2 0 DW_OP_plus DW_OP_stack_value
>> 2. DW_OP_reg1DW_OP_reg2DW_OP_plus DW_OP_stack_value
>
> In DW4 (DW5 has same t
On 03/17/2017 01:18 PM, Adrian Prantl wrote:
> Are these two expressions equivalent?
> 1. DW_OP_breg1 0 DW_OP_breg2 0 DW_OP_plus DW_OP_stack_value
> 2. DW_OP_reg1DW_OP_reg2DW_OP_plus DW_OP_stack_value
In DW4 (DW5 has same text)
These operations name a register location. To fetch the conten
I have a couple of questions regarding the semantics of DW_OP_reg(x) and
DW_OP_breg(x). LLVM's DWARF expression generator (which was written with DWARF
2 in mind) treats DW_OP_breg as synonymous with DW_OP_reg DW_OP_deref, but I
get the impression that that may not be correct in DWARF 4+. Howeve
