https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65837
--- Comment #4 from Ramana Radhakrishnan <ramana at gcc dot gnu.org> ---
(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 ?
regards
Ramana
>
> Thank you
> Prathamesh
