http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48953
Summary: [4.7 Regression] ICE: verify_gimple failed: type mismatch in array reference with -flto and struct with vararray Product: gcc Version: 4.7.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: middle-end AssignedTo: unassig...@gcc.gnu.org ReportedBy: zso...@seznam.cz Host: x86_64-pc-linux-gnu Target: x86_64-pc-linux-gnu Created attachment 24219 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=24219 reduced testcase Compiler output: $ gcc -O -flto -fno-tree-dce testcase.c In file included from :0:0: testcase.c: In function 'main': testcase.c:11:5: error: type mismatch in array reference struct S struct S # .MEM_11 = VDEF <.MEM_10> MEM[(struct S[2] *)s.1_7][0]{lb: 0 sz: 12}.value = 0; testcase.c:11:5: internal compiler error: verify_gimple failed Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. lto-wrapper: /mnt/svn/gcc-trunk/binary-latest/bin/gcc returned 1 exit status collect2: lto-wrapper returned 1 exit status Tested revisions: r173586 - crash 4.6 r173059 - OK (yes,rtl,df checking)