[Mono-dev] assert in mono_local_regalloc in head/trunk

[Lucas Meijer]

Hey,

I'm getting this stacktrace. (embedded mono trunk, windows).  If I 
replace the trunk dll with a mono 2.4 dll, things work fine.

Here's the stacktrace.  I'm hoping someone has a hunch on what might be 
causing this:

asserts in line 1070 in mono_local_regalloc, with the following stacktrace:

g_assert (ins->dreg != -1); 

     mono-1-vc.dll!mono_local_regalloc(MonoCompile * cfg=0x08cc7470, 
MonoBasicBlock * bb=0x08cc8030)  Line 1070 + 0x26 bytes    C
     mono-1-vc.dll!mono_codegen(MonoCompile * cfg=0x08cc7470)  Line 2918 
+ 0xd bytes    C
     mono-1-vc.dll!mini_method_compile(_MonoMethod * method=0x08cc62a0, 
unsigned int opts=64055807, _MonoDomain * domain=0x08b14ea0, int 
run_cctors=1, int compile_aot=0, int parts=0)  Line 3714 + 0x9 bytes    C
     mono-1-vc.dll!mono_jit_compile_method_inner(_MonoMethod * 
method=0x08cc62a0, _MonoDomain * target_domain=0x08b14ea0, int 
opt=64055807)  Line 4041 + 0x17 bytes    C
     mono-1-vc.dll!mono_jit_compile_method_with_opt(_MonoMethod * 
method=0x08cc62a0, unsigned int opt=64055807)  Line 4231 + 0x11 bytes    C
     mono-1-vc.dll!mono_jit_compile_method(_MonoMethod * 
method=0x08cc62a0)  Line 4249 + 0xf bytes    C
     mono-1-vc.dll!mono_jit_runtime_invoke(_MonoMethod * 
method=0x08cc61e8, void * obj=0x09154fc0, void * * params=0x002ddee4, 
MonoObject * * exc=0x00000000)  Line 4386 + 0x9 bytes    C
     mono-1-vc.dll!mono_runtime_invoke(_MonoMethod * method=0x08cc61e8, 
void * obj=0x09154fc0, void * * params=0x002ddee4, MonoObject * * 
exc=0x00000000)  Line 2529 + 0x18 bytes    C
     mono-1-vc.dll!create_exception_two_strings(_MonoClass * 
klass=0x08cc5aa8, MonoString * a1=0x09153fc0, MonoString * 
a2=0x00000000)  Line 128 + 0x13 bytes    C
     mono-1-vc.dll!mono_exception_from_name_two_strings(_MonoImage * 
image=0x08c918e8, const char * name_space=0x08a01910, const char * 
name=0x08a018f8, MonoString * a1=0x09153fc0, MonoString * 
a2=0x00000000)  Line 151 + 0x11 bytes    C
     mono-1-vc.dll!mono_runtime_init(_MonoDomain * domain=0x08b14ea0, 
void (unsigned int, void *, void *)* start_cb=0x088c9270, void (unsigned 
int, void *)* attach_cb=0x088c92e0)  Line 226 + 0x1c bytes    C
     mono-1-vc.dll!mini_init(const char * filename=0x08132048, const 
char * runtime_version=0x00000000)  Line 5086 + 0x13 bytes    C
 >    mono-1-vc.dll!mono_jit_init(const char * file=0x08132048)  Line 
1810 + 0xb bytes    C
     webplayer_win.dll!InitializeMonoFromMain(const 
std::basic_string<char,std::char_traits<char>,std::allocator<char> > & 
monoFrameworkPath="C:/Program Files 
(x86)/Unity/WebPlayer/mono/2.x.x/Data/lib", const 
std::basic_string<char,std::char_traits<char>,std::allocator<char> > & 
resourcePath="C:/Program Files 
(x86)/Unity/WebPlayer/player/2.x.x/Data/lib", int argc=1, const char * * 
argv=0x08131cd8)  Line 2133 + 0x13 bytes    C++
     webplayer_win.dll!LoadMono(const 
std::basic_string<char,std::char_traits<char>,std::allocator<char> > & 
monoPath="C:/Program Files (x86)/Unity/WebPlayer/mono/2.x.x", const 
std::basic_string<char,std::char_traits<char>,std::allocator<char> > & 
unityPath="C:/Program Files (x86)/Unity/WebPlayer/player/2.x.x", const 
std::basic_string<char,std::char_traits<char>,std::allocator<char> > & 
monoDll="C:/Program Files 
(x86)/Unity/WebPlayer/mono/2.x.x/mono-1-vc.dll", const char * 
stdoutFile=0x049d7ba0)  Line 79 + 0x21 bytes    C++
     webplayer_win.dll!PreInitializeCommon(HINSTANCE__ * 
dllInstance=0x10000000, const char * playerPath=0x049d9230, const char * 
monoPath=0x049d92a0, const char * monoDllPath=0x049d92a0, const char * 
openalDllPath=0x049d9230, const char * stdoutPath=0x049d7ba0, 
CrashHandler * crhandler=0x049d2968, const char * 
instanceID=0x049d2810)  Line 461 + 0x73 bytes    C++
     webplayer_win.dll!UnityWinWebStartData(UnityLoaderData * 
data=0x002df5f0)  Line 489 + 0x3d bytes    C++

using mono runtime and corlib from r135921

Any ideas?

Thanks, Lucas