33 lines
721 B
C
33 lines
721 B
C
/* { dg-do compile } */
|
|
/* { dg-options "-O -fno-tree-sra -fdump-tree-fre-details" } */
|
|
|
|
/* Should be optimized, propagating &a into (*p)[i]. */
|
|
|
|
struct Foo
|
|
{
|
|
void *data;
|
|
double size;
|
|
};
|
|
void bar(double *);
|
|
void foo(double (*q)[4])
|
|
{
|
|
struct Foo tmp1;
|
|
double a[4];
|
|
int i;
|
|
tmp1.data = &a;
|
|
tmp1.size = 4;
|
|
for (i=0; i<4; ++i)
|
|
{
|
|
double (*p)[4] = tmp1.data;
|
|
(*p)[i] = (*q)[i];
|
|
/* We want a PHI for the VOP for accessing tmp1.data, so place
|
|
this store to tmp1 here. */
|
|
tmp1.size -= 1.0;
|
|
}
|
|
bar(a);
|
|
}
|
|
|
|
/* { dg-final { scan-tree-dump "Inserted .* &a" "fre" } } */
|
|
/* { dg-final { scan-tree-dump "Replaced tmp1.data" "fre" } } */
|
|
/* { dg-final { cleanup-tree-dump "fre" } } */
|