make fails with segfault in inference.ji on version 0.5

[colbec]

In last 24 hours there have been a number of changes resulting from a git pull including an llvm recompile. Yesterday make and make testall ran fine, but this morning make is failing:

> make
    JULIA usr/lib/julia/inference.ji
/bin/sh: line 1: 21656 Segmentation fault      /home/colin/Downloads/julia/usr/bin/julia -C native --output-ji /home/colin/Downloads/julia/usr/lib/julia/inference.ji --startup-file=no coreimg.jl
Makefile:215: recipe for target '/home/colin/Downloads/julia/usr/lib/julia/inference.ji' failed
make[1]: *** [/home/colin/Downloads/julia/usr/lib/julia/inference.ji] Error 139
Makefile:96: recipe for target 'julia-inference' failed
make: *** [julia-inference] Error 2

If this is not enough info, I can provide the entire output but it is quite long.

[yuyichao]

Do you see warnings about _MSC_VER during llvm re-compilation?

[colbec]

@yuyichao Yes, 80 instances in the entire output beginning with:

In file included from /home/colin/Downloads/julia/usr/include/llvm/ADT/SmallVector.h:20:0,
                 from /home/colin/Downloads/julia/usr/include/llvm/ADT/ArrayRef.h:14,
                 from /home/colin/Downloads/julia/src/APInt-C.cpp:4:
/home/colin/Downloads/julia/usr/include/llvm/Support/MathExtras.h:74:7: warning: "_MSC_VER" is not defined [-Wundef]
 #elif _MSC_VER
       ^
/home/colin/Downloads/julia/usr/include/llvm/Support/MathExtras.h:90:7: warning: "_MSC_VER" is not defined [-Wundef]
 #elif _MSC_VER
       ^
/home/colin/Downloads/julia/usr/include/llvm/Support/MathExtras.h:143:7: warning: "_MSC_VER" is not defined [-Wundef]
 #elif _MSC_VER
       ^
/home/colin/Downloads/julia/usr/include/llvm/Support/MathExtras.h:159:7: warning: "_MSC_VER" is not defined [-Wundef]
 #elif _MSC_VER

......

[yuyichao]

I believe Jeff has seen the same. make -C deps distclean-llvm might fix it.

Both #17592 and c31c5f6 falls in the right time frame so @tkelman

[colbec]

As suggested, make -C deps distclean-llvm fixes. Thanks.

[goldfita]

Were these issues resolved? I'm failing on the same line on v0.6-rc2 (Win 7, Intel Xeon CPU E5-1620). I will try it on a newer machine at some point. A fresh clone of git and 'make -C deps distclean-llvm' does not fix the problem.

I attempted to build with MKL and ran into the following.

LLVM ERROR: Program used external function 'fmaf' which could not be resolved!

XC_HOST = x86_64-w64-mingw32
USE_GPL_LIBS = 0
MARCH = native
USEICC = 0
USEIFC = 0
USE_INTEL_MKL = 1
USE_INTEL_MKL_FFT = 1
USE_INTEL_LIBM = 1

So I tried LLVM 4, but it fails sooner in the build.

/bin/sh: line 1: 489268 Segmentation fault /home/goldfing/tmp/julia/usr/bin/julia.exe -C native --outpu t-ji cygpath -w /home/goldfing/tmp/julia/usr/lib/julia/inference.ji--startup-file=no -g0 -O0 coreimg.jl make[1]: *** [Makefile:214: /home/goldfing/tmp/julia/usr/lib/julia/inference.ji] Error 139 make: *** [Makefile:100: julia-inference] Error 2

XC_HOST = x86_64-w64-mingw32
LLVM_VER = 4.0.0
USE_GPL_LIBS = 0
MARCH = native (or x86-64)

[vtjnash]

Looks like you're missing libopenlibm

[goldfita]

Does setting USE_INTEL_LIBM replace libopenlibm? I tried it without success setting only MKL_FFT=1 but I can't remember now if it was on a fresh git clone.