[Bug c++/62271] New: 4.9 Regression: in vect_get_vec_def_for_operand, at tree-vect-stmts.c:1449

["loic dot blot at unix-experience dot fr" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62271

            Bug ID: 62271
           Summary: 4.9 Regression: in vect_get_vec_def_for_operand, at
                    tree-vect-stmts.c:1449
           Product: gcc
           Version: 4.9.1
            Status: UNCONFIRMED
          Severity: critical
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: loic.blot@unix-experience.fr

Today i experience a bug when compiling dolphin-emulator.
A static table cannot compile when m_CachedFRegs[i][1] is called.

The table is declared like this: m_CachedFRegs[32][2]

When i increase to m_CachedFRegs[32][3] compilation pass.

Else i have this error:

Building CXX object
Source/Core/DolphinWX/CMakeFiles/dolphin-emu.dir/Debugger/RegisterView.cpp.o
/home/nerzhul/Devel/dolphin/Source/Core/DolphinWX/Debugger/RegisterView.cpp: In
member function âvirtual void CRegisterView::Update()â:
/home/nerzhul/Devel/dolphin/Source/Core/DolphinWX/Debugger/RegisterView.cpp:186:6:
erreur interne du compilateur: dans vect_get_vec_def_for_operand, Ã
tree-vect-stmts.c:1449
void CRegisterView::Update()
^
Please submit a full bug report,
with preprocessed source if appropriate.
See https://bugs.archlinux.org/ for instructions.
Source/Core/DolphinWX/CMakeFiles/dolphin-emu.dir/build.make:560: recipe for
target
'Source/Core/DolphinWX/CMakeFiles/dolphin-emu.dir/Debugger/RegisterView.cpp.o'
failed
make[2]: ***
[Source/Core/DolphinWX/CMakeFiles/dolphin-emu.dir/Debugger/RegisterView.cpp.o]
Error 1
CMakeFiles/Makefile2:679: recipe for target
'Source/Core/DolphinWX/CMakeFiles/dolphin-emu.dir/all' failed
make[1]: *** [Source/Core/DolphinWX/CMakeFiles/dolphin-emu.dir/all] Error 2
Makefile:147: recipe for target 'all' failed
make: *** [all] Error 2

It's similar to https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60896

Thanks !