Displaying 3 results from an estimated 3 matches for "derived2".
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2016 Jan 28
2
Proposal: virtual constant propagation
...; new type of load. Did you find this to be an issue in practice?
Initially Pete had to thread special handling for this intrinsic everywhere till instruction selection.
I changed the semantic of the intrinsic to be completely opaque, the codegen I have looks like:
%vtable = load void (%struct.Derived2*)**, void (%struct.Derived2*)*** %3, align 8
%vfn_ptr = getelementptr inbounds void (%struct.Derived2*)*, void (%struct.Derived2*)** %vtable, i64 1
%vfn = load void (%struct.Derived2*)*, void (%struct.Derived2*)** %vfn_ptr, align 8
call void %vfn(%struct.Derived2* %2)
to:
%vtable = load v...
2016 Jan 28
2
Proposal: virtual constant propagation
Hi,
I just thought about another use case: VTable compression.
If you know that an entry in the Vtable is never used, just remove it!
I’d hope we could even eliminate some unused virtual functions from the final binary.
—
Mehdi
> On Jan 27, 2016, at 10:29 PM, Mehdi Amini via llvm-dev <llvm-dev at lists.llvm.org> wrote:
>
> Hi Peter,
>
> Pete (Cooper, CC'ed) had a
2009 Apr 08
1
[LLVMdev] new warnings
On Tue, Apr 7, 2009 at 8:31 PM, Nick Lewycky <nicholas at mxc.ca> wrote:
> Mike Stump wrote:
>> On Apr 7, 2009, at 6:02 PM, Tanya M. Lattner wrote:
>>> Can you please just respond to the specific patch on llvm-commits
>>> instead
>>> of emailing llvm-dev?
>>
>> Don't happen to know which checkin caused it...
>
> Given that there's