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/* { dg-do compile } */
/* { dg-options "-O2 -fno-store-merging" } */
/* { dg-additional-options "-fno-PIE" { target ia32 } } */
/* { dg-additional-options "-fno-common -mdynamic-no-pic" { target { ia32 && { x86_64-*-darwin* i?86-*-darwin* } } } } */
struct B {
B() {}
int x;
int a : 6;
int b : 6;
int c : 6;
};
struct C : B {
char d;
};
C c;
int main()
{
/* We have to make sure to not cause a store data race between
c.c and c.d residing in the tail padding of B. */
c.c = 1;
c.d = 2;
}
/* In particular on x86 c.d should not be loaded/stored via movl. */
/* { dg-final { scan-assembler-not "movl" { target { x86_64-*-* i?86-*-* } } } } */
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