[llvm-dev] Is the CppBackend still supported?

[James Y Knight via llvm-dev]

Yes, it's quite obviously dead and should be deleted.

When I brought this up last time -- after realizing that it wasn't actually
a backend that targetted c++ (which might be useful), but rather just
something that emitted IR by calling llvm C++ functions (which really isn't
IMO) -- someone also pointed out that it also really ought to be using
IRBuilder...if anyone cared about it.


On Tue, May 3, 2016 at 4:14 PM, Sean Silva via llvm-dev <
llvm-dev at lists.llvm.org> wrote:

> AFAICT it is dead.
>
> On Tue, May 3, 2016 at 4:04 AM, Stanislav Manilov via llvm-dev <
> llvm-dev at lists.llvm.org> wrote:
>
>> Hello,
>>
>> I was trying to compile a simple program with the CppBackend like so:
>>
>> $ clang str_arg.c -emit-llvm -S
>> $ llc -march=cpp str_arg.ll
>>
>> It produces a file `str_arg.cpp` as expected, however it doesn't seem
>> that the resulting file is correct. For once, it includes
>> `<llvm/Analysis/Verifier.h>` which seems to have been moved to
>> `llvm/IR/Verifier.h` as far back as 2013.
>>
>> My question is this: is the CppBackend supposed to work? If so, what am I
>> missing?
>>
>> Listing of str_arg.c:
>>
>>     #include <stdio.h>
>>
>>     void i(unsigned index, char *string) {
>>       printf("%d %s\n", index, string);
>>     }
>>
>>     int main() {
>>       i(10, "foo");
>>       return 0;
>>     }
>>
>> clang version:
>>
>>     clang version 3.7.1 (http://llvm.org/git/clang.git
>> 0dbefa1b83eb90f7a06b5df5df254ce32be3db4b) (http://llvm.org/git/llvm.git
>> 33c352b3eda89abc24e7511d9045fa2e499a42e3)
>>     Target: x86_64-unknown-linux-gnu
>>     Thread model: posix
>>
>> llc version:
>>
>>     LLVM (http://llvm.org/):
>>       LLVM version 3.7.1
>>       Optimized build.
>>       Built Apr  4 2016 (15:04:44).
>>       Default target: x86_64-unknown-linux-gnu
>>       Host CPU: ivybridge
>>
>>       Registered Targets:
>>         aarch64    - AArch64 (little endian)
>>         aarch64_be - AArch64 (big endian)
>>         amdgcn     - AMD GCN GPUs
>>         arm        - ARM
>>         arm64      - ARM64 (little endian)
>>         armeb      - ARM (big endian)
>>         bpf        - BPF (host endian)
>>         bpfeb      - BPF (big endian)
>>         bpfel      - BPF (little endian)
>>         cpp        - C++ backend
>>         hexagon    - Hexagon
>>         mips       - Mips
>>         mips64     - Mips64 [experimental]
>>         mips64el   - Mips64el [experimental]
>>         mipsel     - Mipsel
>>         msp430     - MSP430 [experimental]
>>         nvptx      - NVIDIA PTX 32-bit
>>         nvptx64    - NVIDIA PTX 64-bit
>>         ppc32      - PowerPC 32
>>         ppc64      - PowerPC 64
>>         ppc64le    - PowerPC 64 LE
>>         r600       - AMD GPUs HD2XXX-HD6XXX
>>         sparc      - Sparc
>>         sparcel    - Sparc LE
>>         sparcv9    - Sparc V9
>>         systemz    - SystemZ
>>         thumb      - Thumb
>>         thumbeb    - Thumb (big endian)
>>         x86        - 32-bit X86: Pentium-Pro and above
>>         x86-64     - 64-bit X86: EM64T and AMD64
>>         xcore      - XCore
>>
>> Kind regards,
>>  - Stan
>>
>>
>> _______________________________________________
>> LLVM Developers mailing list
>> llvm-dev at lists.llvm.org
>> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>>
>>
>
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