[Bug lto/57726] New: LTO verify_flow_info: error: control flow in the middle of basic block

[marxin.liska at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57726

            Bug ID: 57726
           Summary: LTO verify_flow_info: error: control flow in the
                    middle of basic block
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: lto
          Assignee: unassigned at gcc dot gnu.org
          Reporter: marxin.liska at gmail dot com

Chrome ltrans3 compilation fails due to:

../../third_party/libvpx/source/libvpx/vp8/encoder/onyx_if.c: In function
‘vp8_get_compressed_data’:
../../third_party/libvpx/source/libvpx/vp8/encoder/onyx_if.c:5547:0: error:
control flow in the middle of basic block 6
 int vp8_set_internal_size(VP8_COMP *cpi, VPX_SCALING horiz_mode, VPX_SCALING
vert_mode)
 ^
../../third_party/libvpx/source/libvpx/vp8/encoder/onyx_if.c:5547:0: error:
control flow in the middle of basic block 6
../../third_party/libvpx/source/libvpx/vp8/encoder/onyx_if.c:5547:0: error:
control flow in the middle of basic block 6
../../third_party/libvpx/source/libvpx/vp8/encoder/onyx_if.c:5547:0: error:
control flow in the middle of basic block 64
../../third_party/libvpx/source/libvpx/vp8/encoder/onyx_if.c:5547:0: error:
control flow in the middle of basic block 73
../../third_party/libvpx/source/libvpx/vp8/encoder/onyx_if.c:5547:0: error:
control flow in the middle of basic block 73
../../third_party/libvpx/source/libvpx/vp8/encoder/onyx_if.c:5547:0: error:
control flow in the middle of basic block 73
../../third_party/libvpx/source/libvpx/vp8/encoder/onyx_if.c:5547:0: error:
control flow in the middle of basic block 73
../../third_party/libvpx/source/libvpx/vp8/encoder/onyx_if.c:5547:0: error:
control flow in the middle of basic block 73
../../third_party/libvpx/source/libvpx/vp8/encoder/onyx_if.c:5547:0: error:
control flow in the middle of basic block 73
../../third_party/libvpx/source/libvpx/vp8/encoder/onyx_if.c:5547:0: error:
control flow in the middle of basic block 73
../../third_party/libvpx/source/libvpx/vp8/encoder/onyx_if.c:5547:0: error:
control flow in the middle of basic block 73
../../third_party/libvpx/source/libvpx/vp8/encoder/onyx_if.c:5547:0: error:
control flow in the middle of basic block 103
../../third_party/libvpx/source/libvpx/vp8/encoder/onyx_if.c:5547:0: error:
control flow in the middle of basic block 103
../../third_party/libvpx/source/libvpx/vp8/encoder/onyx_if.c:5547:0: error:
control flow in the middle of basic block 103
../../third_party/libvpx/source/libvpx/vp8/encoder/onyx_if.c:5547:0: error:
control flow in the middle of basic block 103
../../third_party/libvpx/source/libvpx/vp8/encoder/onyx_if.c:5547:0: error:
control flow in the middle of basic block 103
../../third_party/libvpx/source/libvpx/vp8/encoder/onyx_if.c:5547:0: error:
control flow in the middle of basic block 103
../../third_party/libvpx/source/libvpx/vp8/encoder/onyx_if.c:5547:0: error:
control flow in the middle of basic block 103
../../third_party/libvpx/source/libvpx/vp8/encoder/onyx_if.c:5547:0: error:
control flow in the middle of basic block 103
../../third_party/libvpx/source/libvpx/vp8/encoder/onyx_if.c:5547:0: internal
compiler error: verify_flow_info failed
0x568b5d verify_flow_info()
    ../../gcc/cfghooks.c:260
0x88d734 cleanup_tree_cfg_noloop
    ../../gcc/tree-cfgcleanup.c:696
0x88d734 cleanup_tree_cfg()
    ../../gcc/tree-cfgcleanup.c:745
0x7b16c4 execute_function_todo
    ../../gcc/passes.c:1927
0x7b1fcd execute_todo
    ../../gcc/passes.c:2002
0x7b3ba9 execute_one_ipa_transform_pass
    ../../gcc/passes.c:2185
0x7b3ba9 execute_all_ipa_transforms()
    ../../gcc/passes.c:2215
0x58673e expand_function
    ../../gcc/cgraphunit.c:1584
0x58841c expand_all_functions
    ../../gcc/cgraphunit.c:1695
0x58841c compile()
    ../../gcc/cgraphunit.c:2029
0x50e3f1 lto_main()
    ../../gcc/lto/lto.c:3872

gcc --version:
gcc (GCC) 4.9.0 20130624 (experimental)

Link to all ltrans3 dump files:
https://docs.google.com/file/d/0B0pisUJ80pO1akhINVR1anpTbDg/edit?usp=sharing

Source file is attached.

Thanks,
Martin