Carlo Kok via llvm-dev
2016-Oct-17 16:02 UTC
[llvm-dev] Assertion fail/crash in X86FrameLowering::GetFrameIndexReference SEH
Hi, I'm gettign an assertion fail/crash in X86FrameLowering::GetFrameIndexReference when compiling the following bitcode: https://gist.github.com/carlokok/868cddebeb9acc8ccbac6253de0480b0 I tried removing the llvm.frameaddres calls but that's not it, where can I start looking for what my mistake here is? Code seems to verify just fine. ; #0 0x00e1afe8 llvm::X86FrameLowering::getFrameIndexReference(class llvm::MachineFunction const &,int,unsigned int &)const c:\p\llvm\llvm\lib\target\x86\x86framelowering.cpp:1672:0 ; #1 0x00f99010 llvm::WinException::getFrameIndexOffset(int,struct llvm::WinEHFuncInfo const &) c:\p\llvm\llvm\lib\codegen\asmprinter\winexception.cpp:320:0 ; #2 0x00f97f75 llvm::WinException::emitCXXFrameHandler3Table(class llvm::MachineFunction const *,bool) c:\p\llvm\llvm\lib\codegen\asmprinter\winexception.cpp:805:0 ; #3 0x00f98e77 llvm::WinException::endFunction(class llvm::MachineFunction const *) c:\p\llvm\llvm\lib\codegen\asmprinter\winexception.cpp:146:0 ; #4 0x00f685f7 llvm::AsmPrinter::EmitFunctionBody(void) c:\p\llvm\llvm\lib\codegen\asmprinter\asmprinter.cpp:978:0 ; #5 0x00d307fa llvm::X86AsmPrinter::runOnMachineFunction(class llvm::MachineFunction &) c:\p\llvm\llvm\lib\target\x86\x86asmprinter.cpp:73:0 ; #6 0x01021d1b llvm::MachineFunctionPass::runOnFunction(class llvm::Function &) c:\p\llvm\llvm\lib\codegen\machinefunctionpass.cpp:64:0 ; #7 0x011a8f40 llvm::FPPassManager::runOnFunction(class llvm::Function &) c:\p\llvm\llvm\lib\ir\legacypassmanager.cpp:1522:0 ; #8 0x011a9083 llvm::FPPassManager::runOnModule(class llvm::Module &) c:\p\llvm\llvm\lib\ir\legacypassmanager.cpp:1542:0 ; #9 0x011a9202 `anonymous namespace'::MPPassManager::runOnModule c:\p\llvm\llvm\lib\ir\legacypassmanager.cpp:1599:0 ; #10 0x011a8b49 llvm::legacy::PassManagerImpl::run(class llvm::Module &) c:\p\llvm\llvm\lib\ir\legacypassmanager.cpp:1703:0 ; #11 0x00aee750 compileModule c:\p\llvm\llvm\tools\llc\llc.cpp:508:0 ; #12 0x00af2e2a main c:\p\llvm\llvm\tools\llc\llc.cpp:273:0 ; #13 0x015b7e28 _scrt_common_main_seh f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl:253:0 ; #14 0x769e62c4 (C:\WINDOWS\System32\KERNEL32.DLL+0x162c4) ; #15 0x772f0609 (C:\WINDOWS\SYSTEM32\ntdll.dll+0x60609) ; #16 0x772f05d4 (C:\WINDOWS\SYSTEM32\ntdll.dll+0x605d4) bitcode: https://gist.github.com/carlokok/868cddebeb9acc8ccbac6253de0480b0 -- Carlo Kok RemObjects Software
Carlo Kok via llvm-dev
2016-Oct-18 06:51 UTC
[llvm-dev] Assertion fail/crash in X86FrameLowering::GetFrameIndexReference SEH
This turned out to be related to reusing the local used in the catchpad,
for example given the following c++ code:
extern void rthrow();
int main() {
try
{
try {
rthrow();
} catch(int* v) {
rthrow();
}
} catch (int* v)
{
rthrow();
}
return 0;
}
Generates two:
%7 = catchpad within %5 [%rtti.TypeDescriptor4* @"\01??_R0PAH at
8", i32
0, i32** %2]
%11 = catchpad within %9 [%rtti.TypeDescriptor4* @"\01??_R0PAH at
8",
i32 0, i32** %3]
If I change either of them to have the %2 in both, it crashes llvm.
On 2016-10-17 18:02, Carlo Kok via llvm-dev wrote:> Hi,
>
> I'm gettign an assertion fail/crash in
> X86FrameLowering::GetFrameIndexReference when compiling the following
> bitcode:
>
> https://gist.github.com/carlokok/868cddebeb9acc8ccbac6253de0480b0
>
> I tried removing the llvm.frameaddres calls but that's not it, where
can
> I start looking for what my mistake here is? Code seems to verify just
> fine.
>
>
> ; #0 0x00e1afe8 llvm::X86FrameLowering::getFrameIndexReference(class
> llvm::MachineFunction const &,int,unsigned int &)const
> c:\p\llvm\llvm\lib\target\x86\x86framelowering.cpp:1672:0
> ; #1 0x00f99010 llvm::WinException::getFrameIndexOffset(int,struct
> llvm::WinEHFuncInfo const &)
> c:\p\llvm\llvm\lib\codegen\asmprinter\winexception.cpp:320:0
> ; #2 0x00f97f75 llvm::WinException::emitCXXFrameHandler3Table(class
> llvm::MachineFunction const *,bool)
> c:\p\llvm\llvm\lib\codegen\asmprinter\winexception.cpp:805:0
> ; #3 0x00f98e77 llvm::WinException::endFunction(class
> llvm::MachineFunction const *)
> c:\p\llvm\llvm\lib\codegen\asmprinter\winexception.cpp:146:0
> ; #4 0x00f685f7 llvm::AsmPrinter::EmitFunctionBody(void)
> c:\p\llvm\llvm\lib\codegen\asmprinter\asmprinter.cpp:978:0
> ; #5 0x00d307fa llvm::X86AsmPrinter::runOnMachineFunction(class
> llvm::MachineFunction &)
> c:\p\llvm\llvm\lib\target\x86\x86asmprinter.cpp:73:0
> ; #6 0x01021d1b llvm::MachineFunctionPass::runOnFunction(class
> llvm::Function &)
c:\p\llvm\llvm\lib\codegen\machinefunctionpass.cpp:64:0
> ; #7 0x011a8f40 llvm::FPPassManager::runOnFunction(class llvm::Function
> &) c:\p\llvm\llvm\lib\ir\legacypassmanager.cpp:1522:0
> ; #8 0x011a9083 llvm::FPPassManager::runOnModule(class llvm::Module &)
> c:\p\llvm\llvm\lib\ir\legacypassmanager.cpp:1542:0
> ; #9 0x011a9202 `anonymous namespace'::MPPassManager::runOnModule
> c:\p\llvm\llvm\lib\ir\legacypassmanager.cpp:1599:0
> ; #10 0x011a8b49 llvm::legacy::PassManagerImpl::run(class llvm::Module
> &) c:\p\llvm\llvm\lib\ir\legacypassmanager.cpp:1703:0
> ; #11 0x00aee750 compileModule c:\p\llvm\llvm\tools\llc\llc.cpp:508:0
> ; #12 0x00af2e2a main c:\p\llvm\llvm\tools\llc\llc.cpp:273:0
> ; #13 0x015b7e28 _scrt_common_main_seh
> f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl:253:0
> ; #14 0x769e62c4 (C:\WINDOWS\System32\KERNEL32.DLL+0x162c4)
> ; #15 0x772f0609 (C:\WINDOWS\SYSTEM32\ntdll.dll+0x60609)
> ; #16 0x772f05d4 (C:\WINDOWS\SYSTEM32\ntdll.dll+0x605d4)
>
>
> bitcode: https://gist.github.com/carlokok/868cddebeb9acc8ccbac6253de0480b0
>
--
Carlo Kok
RemObjects Software
Reid Kleckner via llvm-dev
2016-Oct-19 17:00 UTC
[llvm-dev] Assertion fail/crash in X86FrameLowering::GetFrameIndexReference SEH
I think r262546 introduced the assumption that allocas are used exactly once with catchpad. It seems easy to fix, though. On Mon, Oct 17, 2016 at 11:51 PM, Carlo Kok via llvm-dev < llvm-dev at lists.llvm.org> wrote:> This turned out to be related to reusing the local used in the catchpad, > for example given the following c++ code: > > extern void rthrow(); > > int main() { > try > { > try { > rthrow(); > } catch(int* v) { > rthrow(); > } > } catch (int* v) > { > rthrow(); > } > return 0; > } > > Generates two: > > %7 = catchpad within %5 [%rtti.TypeDescriptor4* @"\01??_R0PAH at 8", i32 > 0, i32** %2] > %11 = catchpad within %9 [%rtti.TypeDescriptor4* @"\01??_R0PAH at 8", i32 > 0, i32** %3] > > If I change either of them to have the %2 in both, it crashes llvm. > > > On 2016-10-17 18:02, Carlo Kok via llvm-dev wrote: > >> Hi, >> >> I'm gettign an assertion fail/crash in >> X86FrameLowering::GetFrameIndexReference when compiling the following >> bitcode: >> >> https://gist.github.com/carlokok/868cddebeb9acc8ccbac6253de0480b0 >> >> I tried removing the llvm.frameaddres calls but that's not it, where can >> I start looking for what my mistake here is? Code seems to verify just >> fine. >> >> >> ; #0 0x00e1afe8 llvm::X86FrameLowering::getFrameIndexReference(class >> llvm::MachineFunction const &,int,unsigned int &)const >> c:\p\llvm\llvm\lib\target\x86\x86framelowering.cpp:1672:0 >> ; #1 0x00f99010 llvm::WinException::getFrameIndexOffset(int,struct >> llvm::WinEHFuncInfo const &) >> c:\p\llvm\llvm\lib\codegen\asmprinter\winexception.cpp:320:0 >> ; #2 0x00f97f75 llvm::WinException::emitCXXFrameHandler3Table(class >> llvm::MachineFunction const *,bool) >> c:\p\llvm\llvm\lib\codegen\asmprinter\winexception.cpp:805:0 >> ; #3 0x00f98e77 llvm::WinException::endFunction(class >> llvm::MachineFunction const *) >> c:\p\llvm\llvm\lib\codegen\asmprinter\winexception.cpp:146:0 >> ; #4 0x00f685f7 llvm::AsmPrinter::EmitFunctionBody(void) >> c:\p\llvm\llvm\lib\codegen\asmprinter\asmprinter.cpp:978:0 >> ; #5 0x00d307fa llvm::X86AsmPrinter::runOnMachineFunction(class >> llvm::MachineFunction &) >> c:\p\llvm\llvm\lib\target\x86\x86asmprinter.cpp:73:0 >> ; #6 0x01021d1b llvm::MachineFunctionPass::runOnFunction(class >> llvm::Function &) c:\p\llvm\llvm\lib\codegen\machinefunctionpass.cpp:64:0 >> ; #7 0x011a8f40 llvm::FPPassManager::runOnFunction(class llvm::Function >> &) c:\p\llvm\llvm\lib\ir\legacypassmanager.cpp:1522:0 >> ; #8 0x011a9083 llvm::FPPassManager::runOnModule(class llvm::Module &) >> c:\p\llvm\llvm\lib\ir\legacypassmanager.cpp:1542:0 >> ; #9 0x011a9202 `anonymous namespace'::MPPassManager::runOnModule >> c:\p\llvm\llvm\lib\ir\legacypassmanager.cpp:1599:0 >> ; #10 0x011a8b49 llvm::legacy::PassManagerImpl::run(class llvm::Module >> &) c:\p\llvm\llvm\lib\ir\legacypassmanager.cpp:1703:0 >> ; #11 0x00aee750 compileModule c:\p\llvm\llvm\tools\llc\llc.cpp:508:0 >> ; #12 0x00af2e2a main c:\p\llvm\llvm\tools\llc\llc.cpp:273:0 >> ; #13 0x015b7e28 _scrt_common_main_seh >> f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl:253:0 >> ; #14 0x769e62c4 (C:\WINDOWS\System32\KERNEL32.DLL+0x162c4) >> ; #15 0x772f0609 (C:\WINDOWS\SYSTEM32\ntdll.dll+0x60609) >> ; #16 0x772f05d4 (C:\WINDOWS\SYSTEM32\ntdll.dll+0x605d4) >> >> >> bitcode: https://gist.github.com/carlokok/868cddebeb9acc8ccbac6253de0 >> 480b0 >> >> > -- > Carlo Kok > RemObjects Software > _______________________________________________ > LLVM Developers mailing list > llvm-dev at lists.llvm.org > http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev >-------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20161019/c9ae0393/attachment.html>
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