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[Bug middle-end/50211] ICE: verify_flow_info: Incorrect fallthru 11->12 with -funroll-all-loops --param case-values-threshold=1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50211

--- Comment #3 from Zdenek Sojka <zsojka at seznam dot cz> 2012-02-21 21:25:56 UTC ---
Created attachment 26719
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26719
even shorter testcase

$ gcc -O -funroll-all-loops --param=case-values-threshold=1 testcase.c 
testcase.c: In function 'foo':
testcase.c:13:1: error: verify_flow_info: Incorrect fallthru 17->18
testcase.c:13:1: error: wrong insn in the fallthru edge
(barrier 107 104 129)
testcase.c:13:1: internal compiler error: in rtl_verify_flow_info, at
cfgrtl.c:2180
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

ICEs with r184423


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