Displaying 2 results from an estimated 2 matches for "reusealloca".
2015 Sep 03
2
Rerunning TailCallElim at a later stage
...hat I have figured out, the pass "TailCallElim" is being done in
what I would call the "opt" phase of optimization. The "StackColoring"
is being done in the "llc" phase. opt -> llc, so TailCallElim is always
ahead.
Now I would like to add something (my reusealloca idea) in
"StackColoring" to get rid of some allocas, which inhibit "TailCallElim".
* Is it possible to rerun (if even possible at that stage) the
"TailCallElim" at this stage ?
* Is it possible to make "StackColoring" into an "opt" pass and try...
2015 Aug 31
2
alloca combining, not (yet) possible ?
Caldarale, Charles R schrieb:
> You have not provided us with the declaration for f(). Unless its argument is marked with the nocapture attribute, the compilation of g() cannot assume that f() has not retained a pointer to the x struct and is using it in the second call.
>
thanks a lot for the input. Yes, I forgot to that. The C function
declaration would have been
void f( struct a_b