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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
- From: "zsojka at seznam dot cz" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 21 Feb 2012 21:25:56 +0000
- Subject: [Bug middle-end/50211] ICE: verify_flow_info: Incorrect fallthru 11->12 with -funroll-all-loops --param case-values-threshold=1
- Auto-submitted: auto-generated
- References: <bug-50211-4@http.gcc.gnu.org/bugzilla/>
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,
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See <http://gcc.gnu.org/bugs.html> for instructions.
ICEs with r184423