Hi,
I find that in the function expand_expr_real_1(), which translates the
GIMPLE tree nodes to RTL.
There are codes to process the ARRAY_REF/ARRAY_REF_RANGE node. I wrote a
test program in C such like this,
void f(int s1[], int s2[], int s3[])
{
int j;
for (j = 0; j < 16; j++)
s3[j] = s1[j] + s2[j];
}
I set a breakpoint at the codes to process ARRAY_REF node in
expand_expr_real_1(), However I found that GCC never goes there. I do
find that the ARRAY_REF nodes denoting S1[j]/S2[j]/S3[j] exist in
GENERIC tree for the program. After the gimplify_expr() called, they are
lowered to other nodes? If so, why the expand_expr_real_1() handle such
nodes. What is wrong.
Qing
