What OS? Is this on a vm? I7-avx is the instruction family. I5 will be ok. Certain vms break handling avx register saves.

On Thursday, April 24, 2014, Daniel Fischer <daniel.is.fischer@googlemail.com> wrote:

I have done a bit of testing with regards to my optllvm failures in the
testsuite.

Some tests compile but segfault when they are run, others fail to compile,
both with HEAD and 7.8.2, but those I tested all work with 7.6.3, although 7.6
gives the warning:

You are using a new version of LLVM that hasn't been tested yet!
We will try though...

I suspect that the LLVM backend thinks I have a different version than I
actually have, or maybe the LLVM tools think I have a different CPU than I
have:

dafis@schwartz:~/JNthPrime> llc --version
LLVM (http://llvm.org/):
LLVM version 3.2svn
Optimized build.
Default target: x86_64-unknown-linux-gnu
Host CPU: corei7-avx

Registered Targets:
arm - ARM
ppc32 - PowerPC 32
ppc64 - PowerPC 64
thumb - Thumb
x86 - 32-bit X86: Pentium-Pro and above
x86-64 - 64-bit X86: EM64T and AMD64
dafis@schwartz:~/JNthPrime> opt --version
LLVM (http://llvm.org/):
LLVM version 3.2svn
Optimized build.
Default target: x86_64-unknown-linux-gnu
Host CPU: corei7-avx

But my CPU is a Core i5, not i7.

Can somebody confirm or deny that that may be the cause?
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