[llvm-dev] Generating object files more efficiently

[J S via llvm-dev]

Craig,

clang --target=XYZ x.c -o foo.elf
error: unknown target triple 'XYZ', please use -triple or -arch


-triple and -arch didn't work either

________________________________
From: Craig Topper <craig.topper at gmail.com>
Sent: Saturday, March 23, 2019 1:39 PM
To: J S
Cc: Doerfert, Johannes; via llvm-dev
Subject: Re: [llvm-dev] Generating object files more efficiently

I think you need to pass a triple for your target to clang using --target  otherwise it will use your host target.

~Craig


On Sat, Mar 23, 2019 at 1:32 PM J S via llvm-dev <llvm-dev at lists.llvm.org<mailto:llvm-dev at lists.llvm.org>> wrote:
It is my actual target architecture
________________________________
From: Doerfert, Johannes <jdoerfert at anl.gov<mailto:jdoerfert at anl.gov>>
Sent: Saturday, March 23, 2019 1:30 PM
To: J S
Cc: via llvm-dev
Subject: Re: [llvm-dev] Generating object files more efficiently


I copied "-march=XYZ" from your original email,

you have to replace it with your actual target architecture or simply drop it.

________________________________
From: J S <mm92126 at hotmail.com<mailto:mm92126 at hotmail.com>>
Sent: Saturday, March 23, 2019 3:26:59 PM
To: Doerfert, Johannes
Cc: via llvm-dev
Subject: Re: [llvm-dev] Generating object files more efficiently



Johannes,


I tried the last one and it gave me this:


error: unknown target CPU 'XYZ'
note: valid target CPU values are: nocona, core2, penryn, bonnell, atom,
      silvermont, slm, goldmont, goldmont-plus, tremont, nehalem, corei7,
      westmere, sandybridge, corei7-avx, ivybridge, core-avx-i, haswell,
      core-avx2, broadwell, skylake, skylake-avx512, skx, cascadelake,
      cannonlake, icelake-client, icelake-server, knl, knm, k8, athlon64,
      athlon-fx, opteron, k8-sse3, athlon64-sse3, opteron-sse3, amdfam10,
      barcelona, btver1, btver2, bdver1, bdver2, bdver3, bdver4, znver1, znver2,
      x86-64


________________________________
From: Doerfert, Johannes <jdoerfert at anl.gov<mailto:jdoerfert at anl.gov>>
Sent: Saturday, March 23, 2019 1:15 PM
To: J S
Cc: via llvm-dev
Subject: Re: [llvm-dev] Generating object files more efficiently

I would have guessed:

object:
clang -c foo.c -o foo.o -march=XYZ

shared library:
clang -shared foo.c -o foo.so -march=XYZ

executable:
clang foo.c -o foo -march=XYZ


On 03/23, J S via llvm-dev wrote:
> Currently I compile my C code in 2 steps in order to generate .o files
>
> clang -emit-llvm -c foo.c -o foo.bc
> llc -march=XYZ foo.bc -filetype=obj
>
> Is there a way to generate either .o or .elf files in just 1 command?
>
> Thanks.
>

> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org<mailto:llvm-dev at lists.llvm.org>
> https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
llvm-dev Info Page<https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev>
lists.llvm.org<http://lists.llvm.org>
To see the collection of prior postings to the list, visit the llvm-dev Archives.. Using llvm-dev: To post a message to all the list members, send email to llvm-dev at lists.llvm.org<mailto:llvm-dev at lists.llvm.org>. You can subscribe to the list, or change your existing subscription, in the sections below.




--

Johannes Doerfert
Researcher

Argonne National Laboratory
Lemont, IL 60439, USA

jdoerfert at anl.gov<mailto:jdoerfert at anl.gov>
_______________________________________________
LLVM Developers mailing list
llvm-dev at lists.llvm.org<mailto:llvm-dev at lists.llvm.org>
https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20190323/6ac51004/attachment.html>