This is the mail archive of the
gcc-patches@gcc.gnu.org
mailing list for the GCC project.
Re: [PATCH]: Fix PR tree-optimization/21407
On May 10, 2005, at 10:08 AM, Daniel Berlin wrote:
The only opinion i personally hold is that it would be better for
optimizers if the code is illegal. :)
And for most users. One of ours did something like this:
struct foo { int a; int b; };
bar() {
struct foo f;
f.a= ...;
g(&f.b);
if (f.a) ....
}
He wants f.a's value propagated across the call, and kept in a register.
That would be cool, if it's valid.