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| author | Andrew Pinski <apinski@marvell.com> | 2023-05-02 16:04:00 -0700 |
|---|---|---|
| committer | Andrew Pinski <apinski@marvell.com> | 2023-05-04 04:25:27 -0700 |
| commit | 78b0eea7802698f51377f77aa98453556854a328 (patch) | |
| tree | 68de52bf3d6359215b071ff6c5ae394fc7dbd687 /gcc/tree-ssa-phiopt.cc | |
| parent | 8830e46777407a7d5cd3de353394ffc46f2c785c (diff) | |
| download | gcc-78b0eea7802698f51377f77aa98453556854a328.zip gcc-78b0eea7802698f51377f77aa98453556854a328.tar.gz gcc-78b0eea7802698f51377f77aa98453556854a328.tar.bz2 | |
Move copy_phi_arg_into_existing_phi to common location and use it
While improving replace_phi_edge_with_variable for the diamond formed bb
case, I need a way to copy phi entries from one edge to another as I am
removing a forwarding bb inbetween. I was pointed out that jump threading
code had copy_phi_arg_into_existing_phi which I can use.
I also noticed that both gimple_duplicate_sese_tail and
remove_forwarder_block have similar code so it makes sense to use that function
in those two locations too.
OK? Bootstrapped and tested on x86_64-linux-gnu with no regressions.
gcc/ChangeLog:
* tree-ssa-threadupdate.cc (copy_phi_arg_into_existing_phi): Move to ...
* tree-cfg.cc (copy_phi_arg_into_existing_phi): Here and remove static.
(gimple_duplicate_sese_tail): Use copy_phi_arg_into_existing_phi instead
of an inline version of it.
* tree-cfgcleanup.cc (remove_forwarder_block): Likewise.
* tree-cfg.h (copy_phi_arg_into_existing_phi): New declaration.
Diffstat (limited to 'gcc/tree-ssa-phiopt.cc')
0 files changed, 0 insertions, 0 deletions