[llvm-dev] Generating object files more efficiently
J S via llvm-dev
llvm-dev at lists.llvm.org
Sat Mar 23 13:26:59 PDT 2019
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>
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.
>
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--
Johannes Doerfert
Researcher
Argonne National Laboratory
Lemont, IL 60439, USA
jdoerfert at anl.gov
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