Created attachment 27639 [details] C source code I just tried to compile the package gnet2-2.0.8-6 on gcc-4.8 trunk dated 20120617 on an AMD x86_64 box. The compiler said usagi_ifaddrs.c:428:1: error: definition in block 105 does not dominate use in block 103 usagi_getifaddrs (struct ifaddrs **ifap) ^ for SSA_NAME: .MEM_375 in statement: # VUSE <.MEM_375> D.5483_238 = ifamap.address_len; usagi_ifaddrs.c:428:1: internal compiler error: verify_ssa failed Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. Preprocessed source code attached. Flag -O2 required.
It is caused by revision 188457: http://gcc.gnu.org/ml/gcc-cvs/2012-06/msg00367.html
Mine. Investigating...
Author: wschmidt Date: Mon Jun 18 12:22:37 2012 New Revision: 188731 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=188731 Log: gcc: 2012-06-18 Bill Schmidt <wschmidt@linux.ibm.com> PR tree-optimization/53703 * tree-ssa-phiopt.c (hoist_adjacent_loads): Skip virtual phis; correctly set bb_for_def[12]. gcc/testsuite: 2012-06-18 Bill Schmidt <wschmidt@linux.ibm.com> PR tree-optimization/53703 * gcc.dg/torture/pr53703.c: New test. Added: trunk/gcc/testsuite/gcc.dg/torture/pr53703.c Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-ssa-phiopt.c
Fixed.
*** Bug 53715 has been marked as a duplicate of this bug. ***
Author: wschmidt Date: Wed Jun 20 14:30:39 2012 New Revision: 188835 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=188835 Log: gcc: 2012-06-20 Bill Schmidt <wschmidt@linux.ibm.com> PR tree-optimization/53703 * tree-ssa-phiopt.c (hoist_adjacent_loads): Skip virtual phis; correctly set bb_for_def[12]. gcc/testsuite: 2012-06-20 Bill Schmidt <wschmidt@linux.ibm.com> PR tree-optimization/53703 * gcc.dg/torture/pr53703.c: New test. Added: branches/ibm/gcc-4_6-branch/gcc/testsuite/gcc.dg/torture/pr53703.c Modified: branches/ibm/gcc-4_6-branch/gcc/ChangeLog.ibm branches/ibm/gcc-4_6-branch/gcc/testsuite/ChangeLog.ibm branches/ibm/gcc-4_6-branch/gcc/tree-ssa-phiopt.c
Author: wschmidt Date: Wed Jun 20 14:34:08 2012 New Revision: 188836 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=188836 Log: gcc: 2012-06-20 Bill Schmidt <wschmidt@linux.ibm.com> PR tree-optimization/53703 * tree-ssa-phiopt.c (hoist_adjacent_loads): Skip virtual phis; correctly set bb_for_def[12]. gcc/testsuite: 2012-06-20 Bill Schmidt <wschmidt@linux.ibm.com> PR tree-optimization/53703 * gcc.dg/torture/pr53703.c: New test. Added: branches/ibm/gcc-4_7-branch/gcc/testsuite/gcc.dg/torture/pr53703.c Modified: branches/ibm/gcc-4_7-branch/gcc/ChangeLog.ibm branches/ibm/gcc-4_7-branch/gcc/testsuite/ChangeLog.ibm branches/ibm/gcc-4_7-branch/gcc/tree-ssa-phiopt.c