[Bug tree-optimization/56310] New: [4.8 Regression] ICE: in decide_about_value, at ipa-cp.c:3310 with -fipa-cp -fno-early-inlining -fipa-cp-clone --param=ipa-cp-eval-threshold=1

[zsojka at seznam dot cz]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56310



             Bug #: 56310

           Summary: [4.8 Regression] ICE: in decide_about_value, at

                    ipa-cp.c:3310 with -fipa-cp -fno-early-inlining

                    -fipa-cp-clone --param=ipa-cp-eval-threshold=1

    Classification: Unclassified

           Product: gcc

           Version: 4.8.0

            Status: UNCONFIRMED

          Severity: normal

          Priority: P3

         Component: tree-optimization

        AssignedTo: unassig...@gcc.gnu.org

        ReportedBy: zso...@seznam.cz





Created attachment 29444

  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29444

reduced testcase



Compiler output:

$ gcc -O -fipa-cp -std=gnu++0x -fno-early-inlining -fipa-cp-clone

--param=ipa-cp-eval-threshold=1 testcase.C

testcase.C:33:1: internal compiler error: in decide_about_value, at

ipa-cp.c:3310

 }

 ^

0x12c7bed decide_about_value

        /mnt/svn/gcc-trunk/gcc/ipa-cp.c:3308

0x12ca200 decide_whether_version_node

        /mnt/svn/gcc-trunk/gcc/ipa-cp.c:3367

0x12ca200 ipcp_decision_stage

        /mnt/svn/gcc-trunk/gcc/ipa-cp.c:3495

0x12ca200 ipcp_driver

        /mnt/svn/gcc-trunk/gcc/ipa-cp.c:3537

Please submit a full bug report,

with preprocessed source if appropriate.

Please include the complete backtrace with any bug report.

See <http://gcc.gnu.org/bugs.html> for instructions.



Tested revisions:

r195931 - crash

r192654 - OK