Hello, When I run the test suite for my port of gcc, there are some failures caused by the optimization flag such as -O2/-O3, and the messages are like,
930120-1.c: In function `f': 930120-1.c:138: internal compiler error: in verify_local_live_at_start, at flow. c:546 It seems that because of the regsets doesn't match after reload. But can you give me any clues? I think it's hard to check the bugs. Thanks a lot. Eric.