[Bug tree-optimization/97164] New: incorrect offset on structure member where type of that member has aligned attribute

[jan.smets at nokia dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97164

            Bug ID: 97164
           Summary: incorrect offset on structure member where type of
                    that member has aligned attribute
           Product: gcc
           Version: 10.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: jan.smets at nokia dot com
  Target Milestone: ---

Created attachment 49256
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49256&action=edit
testcase

Following testcase produces invalid code with GCC 10.2, 9.3, 8.4, 7.5
Works with GCC 6.5

GCC 6:
    movq    FPAPools+143752(%rdi), %rax

GCC 10 : 
    movq    FPAPools+143744(%rbx), %rax


Testcase compiled with : -fno-builtin -nostdinc -march=core2 -m64 -O2 
-mno-red-zone -fno-omit-frame-pointer -Wall -Wextra

Target: x86_64-linux-gnu
Configured with: /usr/src/gcc/configure --build=x86_64-linux-gnu
--disable-multilib --enable-languages=c,c++,fortran,go
gcc version 10.2.0 (GCC)