Displaying 3 results from an estimated 3 matches for "establisherfram".
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establisherframe
2018 May 24
0
LLVM SEH docs -- enregistration of locals in nonvolatile registers?
Is this example what you had in mind?
void f() {
int *p = get_p();
use_p(p);
try {
may_throw(p);
} catch (int) {
// don't need p
}
use_p(p);
}
The idea is that because p is not modified or used within the catch region
(the funclet), it can live in a callee-saved register across the whole
function.
That is true, it is possible, but I don't think it fits very well in
2018 May 22
2
LLVM SEH docs -- enregistration of locals in nonvolatile registers?
https://llvm.org/docs/ExceptionHandling.html#wineh
> No variables live in to or out of the funclet can be allocated in registers.
I don't think this is quite true. though it might be a useful simplification.
Obviously it is true for volatile registers, but I believe the funclet receives a CONTEXT
with the nonvolatiles restored. Obviously cumbersome to access, but it lets you enregister
2015 May 18
2
[LLVMdev] RFC: New EH representation for MSVC compatibility
On Mon, May 18, 2015 at 11:48 AM, Steve Cheng <steve.ckp at gmail.com> wrote:
> On 2015-05-18 13:32:54 -0400, Reid Kleckner said:
>
>>
>> Right, doing our own personality function is possible, but still has half
>> the challenge of using __CxxFrameHandler3, and introduces a new runtime
>> dependency that isn't there currently. Given that it won't save