[cfe-dev] Clang++ 3.4 -fdump-record-layouts not producing any results?

[Reid Kleckner]

cc1 flags are not documented, including -fdump-record-layouts.  Go figure.
 :)


On Mon, Nov 25, 2013 at 2:40 PM, Dun Peal <dunpealer at gmail.com> wrote:

> Thanks, guys. -emit-llvm-only seems to do the trick, with the added
> benefit of suppressing the generation of object files.
>
> Where are these flags documented?  I looked through both `man clang` and
> the online User Manual[1], and neither mentioned those flags.
>
> [1] http://clang.llvm.org/docs/UsersManual.html
>
>
> On Mon, Nov 25, 2013 at 2:05 PM, Reid Kleckner <rnk at google.com> wrote:
>
>> The -cc1 command appears to default to -fsyntax-only, so you want to pass
>> -emit-llvm-only or -emit-obj.  If you do -fsyntax-only, we don't have to
>> compute record layout in your example, so we don't dump it.
>>
>>
>> On Mon, Nov 25, 2013 at 1:44 PM, Dun Peal <dunpealer at gmail.com> wrote:
>>
>>> I'm trying to dump the record layout on Xubuntu 13.04, using official
>>> APT binaries for latest stable 3.4. Unfortunately, it doesn't seem to
>>> produce any results, as you can see from the following trivial example. Am
>>> I doing it wrong?
>>>
>>> $ cat test.cc
>>> class Tester {
>>>     int foo;
>>> };
>>>
>>> int main() {
>>>     Tester test;
>>>     return 0;
>>> }
>>> $ clang -cc1 -v -fdump-record-layouts test.cc
>>> clang -cc1 version 3.4 based upon LLVM 3.4 default target
>>> x86_64-pc-linux-gnu
>>> #include "..." search starts here:
>>> End of search list.
>>>
>>> _______________________________________________
>>> cfe-dev mailing list
>>> cfe-dev at cs.uiuc.edu
>>> http://lists.cs.uiuc.edu/mailman/listinfo/cfe-dev
>>>
>>>
>>
>
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