[Bug other/59622] New: trung gcc-4.9.0:internal compiler error: verify_gimple failed

[nheghathivhistha at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59622

            Bug ID: 59622
           Summary: trung gcc-4.9.0:internal compiler error: verify_gimple
                    failed
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: other
          Assignee: unassigned at gcc dot gnu.org
          Reporter: nheghathivhistha at gmail dot com

Created attachment 31535
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31535&action=edit
Reduced precompiled source file

Gcc 4.9.0 trunk from 2013-12-28 ICEs while compiling Gentoo LLVM-3.3-r2:

x86_64-pc-linux-gnu-g++ -m32 -fvisibility-inlines-hidden -fno-exceptions -fPIC
-O2 -ggdb -pipe -march=native -mtune=native  -flto=4 -pedantic -c
./testcase.i./testcase.i: In member function ‘llvm::Value*
{anonymous}::LibCallOptimization::OptimizeCall(llvm::CallInst*,
llvm::DataLayout*, llvm::TargetLibraryInfo*, llvm::IRBuilder<>&)’:
./testcase.i:225:12: error: LHS in noreturn call
     Value *OptimizeCall (CallInst * CI, DataLayout *, TargetLibraryInfo *,
            ^
D.2995 = __builtin_unreachable (this, D.2998, 0B, MEM[(const struct IRBuilder
&)B]);
./testcase.i:225:12: internal compiler error: verify_gimple failed
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://bugs.gentoo.org/> for instructions

Crashes the same way without -flto.

Gcc-4.8.2 not ICEs but fails other way with -flto but succeeds without -flto.

C-reduce reduced testcase attached.