------- Comment #26 from zsojka at seznam dot cz 2010-05-03 15:02 ------- Created an attachment (id=20547) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20547&action=view) next testcase
Reduced from libstdc++-v3/testsuite/23_containers/bitset/operations/1.cc I am happy those testcases helped with gcc development, and I hope this one will too. Command line: $ g++ -O[123] -fipa-pta pr43879-4_1.C pr43879-4_2.C && ./a.out Aborted For some reason, b1.i is expected to be zero: (diff from asm output for a bit different testcase) 101c98 < cmp QWORD PTR [rsp+48], rbx # b2.i, b1$i --- > cmp QWORD PTR [rsp+48], 0 # b2.i, -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43879
