[Bug tree-optimization/46499] gcc.c-torture/execute/20051021-1.c FAILs with -fno-tree-dominator-opts -fno-tree-ccp

[zsojka at seznam dot cz]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46499

--- Comment #1 from Zdenek Sojka <zsojka at seznam dot cz> 2010-11-16 15:45:09 UTC ---
Created attachment 22423
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22423
testcase causing RTL check ICE

While reducing the testcase, I got to this, which crashes with RTL checking:

$ gcc -O -fno-tree-ccp -fno-tree-dominator-opts pr46499.c 
pr46499.c: In function 'main':
pr46499.c:14:1: internal compiler error: RTL check: expected elt 3 type 'B',
have '0' (rtx barrier) in rtl_verify_flow_info_1, at cfgrtl.c:1846
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