------- Comment #9 from jiez at gcc dot gnu dot org 2010-07-13 09:52 ------- I think this one caused it:
http://gcc.gnu.org/ml/gcc-patches/2010-06/msg03103.html The test case is attached. $ ./cc1 -O2 -Wall testcase.i -quiet testcase.i: In function 'reload_cse_regs': testcase.i:18129:64: warning: 'min_regno' may be used uninitialized in this function [-Wuninitialized] testcase.i:18095:7: note: 'min_regno' was declared here -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44921