debug test assertion failure

[nolta]

If i run:

$ cd test
$ gdb ../usr/bin/julia-debug-basic 
(gdb) r runtests.jl all

it crashes at intrinsics.cpp:164:

[Thread debugging using libthread_db enabled]
[New Thread 0x7fffef599700 (LWP 27349)]
[New Thread 0x7fffec76f700 (LWP 27350)]
[New Thread 0x7fffe7f6e700 (LWP 27351)]
[New Thread 0x7ffff0f4e700 (LWP 27352)]
     * all
     * core
     * numbers
     * strings
     * unicode
     * corelib
     * hashing
     * remote
     * arrayops
     * linalg
julia-debug-basic: intrinsics.cpp:164: llvm::Value* emit_unbox(llvm::Type*, llvm::Type*, llvm::Value*): Assertion `x->getType() == to' failed.

Program received signal SIGABRT, Aborted.
0x00000035a50330c5 in raise () from /lib64/libc.so.6
Missing separate debuginfos, use: debuginfo-install glibc-2.13-2.x86_64 libgcc-4.5.1-4.fc14.x86_64 libgfortran-4.5.1-4.fc14.x86_64 libstdc++-4.5.1-4.fc14.x86_64
(gdb) bt
#0  0x00000035a50330c5 in raise () from /lib64/libc.so.6
#1  0x00000035a5034a76 in abort () from /lib64/libc.so.6
#2  0x00000035a502b905 in __assert_fail () from /lib64/libc.so.6
#3  0x00007ffff7381ef8 in emit_unbox (to=0x605c08, pto=0x6b6c00, x=0x3bf7de8) at intrinsics.cpp:164
#4  0x00007ffff739211c in emit_assignment (l=0x7616640, r=0xe96720, ctx=0x7fffffff67f0) at codegen.cpp:1343
#5  0x00007ffff7392bf3 in emit_expr (expr=0x1db63e0, ctx=0x7fffffff67f0, isboxed=false, valuepos=false) at codegen.cpp:1471
#6  0x00007ffff73966a6 in emit_function (lam=0x9f8bac0, f=0x5275520) at codegen.cpp:2034
#7  0x00007ffff737c115 in to_function (li=0x9f8bac0) at codegen.cpp:171
#8  0x00007ffff737c571 in jl_compile (f=0x5884690) at codegen.cpp:231
#9  0x00007ffff7372ff2 in jl_get_specialization (f=0xdab560, types=0x5884670) at gf.c:1264
#10 0x00007ffff738e282 in emit_known_call (ff=0xdab560, args=0x6f02cb0, nargs=2, ctx=0x7fffffff9120, theFptr=0x7fffffff80f8, 
    theF=0x7fffffff80f0, expr=0x2e9d930) at codegen.cpp:770
#11 0x00007ffff7390d2f in emit_call (args=0x6f02cb0, arglen=3, ctx=0x7fffffff9120, expr=0x2e9d930) at codegen.cpp:1154
#12 0x00007ffff7392bb1 in emit_expr (expr=0x2e9d930, ctx=0x7fffffff9120, isboxed=true, valuepos=true) at codegen.cpp:1467
#13 0x00007ffff738f2a9 in emit_known_call (ff=0xbb0cb0, args=0x6f02c60, nargs=2, ctx=0x7fffffff9120, theFptr=0x7fffffff8bb8, 
    theF=0x7fffffff8bb0, expr=0x2e9d910) at codegen.cpp:894
#14 0x00007ffff7390d2f in emit_call (args=0x6f02c60, arglen=3, ctx=0x7fffffff9120, expr=0x2e9d910) at codegen.cpp:1154
#15 0x00007ffff7392bb1 in emit_expr (expr=0x2e9d910, ctx=0x7fffffff9120, isboxed=true, valuepos=true) at codegen.cpp:1467
#16 0x00007ffff739654e in emit_function (lam=0x9e37860, f=0x5f437e0) at codegen.cpp:2018
#17 0x00007ffff737c115 in to_function (li=0x9e37860) at codegen.cpp:171
#18 0x00007ffff737c571 in jl_compile (f=0x5eebc40) at codegen.cpp:231
#19 0x00007ffff7379920 in jl_trampoline (F=0x5eebc40, args=0x7fffffffa6e8, nargs=2) at builtins.c:700
#20 0x00007ffff736f651 in jl_apply (f=0x5eebc40, args=0x7fffffffa6e8, nargs=2) at julia.h:903
#21 0x00007ffff73731f0 in jl_apply_generic (F=0xd1c360, args=0x7fffffffa6e8, nargs=2) at gf.c:1339
#22 0x00007ffff0edd9d8 in ?? ()
#23 0x0000000000000000 in ?? ()

[JeffBezanson]

Good catch, fix on the way. This is related to lapack.jl:391, which uses eps(Float32) regardless of the element type, which doesn't seem right. I believe we can pass -1 and have it pick for us. Don't know if this matters though.

[andreasnoack]

Could this be related to #1398?

Also, can you elaborate on this issue even though it has been fixed? I am the author of lapack.jl:391 and agree that it is not very clever, but I cannot see why it should cause an error. As I understand it ccall should convert to the specified type. I am writing an update of that function and want to be as right as possible. In the new version the variable will be a FloatingPoint argument to the function.

[JeffBezanson]

It isn't an error, that was a compiler bug.