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/* { dg-do compile } */
/* { dg-options "-O -fno-tree-sra --param max-aliased-vops=0 --param max-fields-for-field-sensitive=0 -fdump-tree-fre-details" } */
/* Should be optimized, propagating &a into (*p)[i] with parameters
--param max-aliased-vops=0 --param max-fields-for-field-sensitive=0
which means max 1 VOP per stmt and no SFTs. */
struct Foo
{
void *data;
double size;
};
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;
}
}
/* { dg-final { scan-tree-dump "Inserted .* &a" "fre" } } */
/* { dg-final { scan-tree-dump "Replaced tmp1.data" "fre" } } */
/* { dg-final { cleanup-tree-dump "fre" } } */
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