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From: "prathamesh3492 at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/65837] [arm-linux-gnueabihf] lto1 target specific builtin not available
Date: Wed, 22 Apr 2015 23:38:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65837

prathamesh3492 at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |INVALID

--- Comment #5 from prathamesh3492 at gcc dot gnu.org ---
(In reply to Ramana Radhakrishnan from comment #4)
> (In reply to prathamesh3492 from comment #3)
> > Hi,
> > I tried to reproduce the error with a reduced test-case:
> > 
> > #include "arm_neon.h"
> > 
> > float32x2_t a, b, c, e;
> > 
> > int main()
> > {
> >   e = __builtin_neon_vmls_lanev2sf (a, b, c, 0);
> >   return 0;
> > }
> > 
> > arm-linux-gnueabihf-gcc -mfpu=neon test.c -flto test.c -c
> > arm-linux-gnueabihf-gcc test.o -flto -o test
> > lto1: fatal error: target specific builtin not available
> > compilation terminated.
> 
> Ofcourse, that's expected behaviour - you don't have support for the SIMD
> intrinsics if you don't ask for it on the command line or your compiler
> doesn't default to generating code for the SIMD unit.
> 
> > lto-wrapper: fatal error:
> > /home/prathamesh.kulkarni/gnu-toolchain/gcc-chromium-arm-linux-gnueabihf/
> > builds/destdir/x86_64-unknown-linux-gnu/bin/arm-linux-gnueabihf-gcc returned
> > 1 exit status
> > compilation terminated.
> > 
> > However passing -mfpu=neon for linking works:
> > arm-linux-gnueabihf-gcc -mfpu=neon test.o -flto -o test
> > 
> > I suppose similar thing must be happening during linking
> > libshared_memory_support.so for chromium build ?
> > I couldn't see -mfpu=neon in the command line used for linking
> > libshared_memory_support.so
> 
> RESOLVED INVALID then ?
Yeah, silly mistake from my side, sorry for the noise.

Regards,
Prathamesh
> 
> regards
> Ramana
> 
> > 
> > Thank you
> > Prathamesh