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From: "darpeer at hotmail dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c/66060] New: struct member allocation off. Date: Thu, 07 May 2015 21:55:00 -0000 [thread overview] Message-ID: <bug-66060-4@http.gcc.gnu.org/bugzilla/> (raw) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66060 Bug ID: 66060 Summary: struct member allocation off. Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: darpeer at hotmail dot com Target Milestone: --- Using gdb, two struct members end up at the same offset. gcc (GCC) 6.0.0 20150418 (experimental) and older. gcc -c -O0 -ggdb3 struct-example.C cat struct-example.C struct ODD_S { char a[/*0x2000 */ 2097152]; char b[/*0x400 */ 536870912]; char c[/*0x8000 */ 33554432]; } l_; (gdb) p &l_.a $1 = (char (*)[2097152]) 0x0 <l_> (gdb) p &l_.b $2 = (char (*)[536870912]) 0x200000 <l_+2097152> (gdb) p &l_.c $3 = (char (*)[33554432]) 0x200000 <l_+2097152>
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