diff options
| author | guojiufu <guojiufu@linux.ibm.com> | 2020-11-17 19:49:03 +0800 |
|---|---|---|
| committer | guojiufu <guojiufu@linux.ibm.com> | 2020-11-18 13:29:14 +0800 |
| commit | d87ee7f1c9cd2ffa6302cdfd0686d72e5bb7463b (patch) | |
| tree | c4f1dda5d267c73b2a7a7e1cceffc5b13bdbe7ab /gcc/tree-ssa-loop.c | |
| parent | 397654d66a4f84d4439e046cd330d9968af3b62b (diff) | |
| download | gcc-d87ee7f1c9cd2ffa6302cdfd0686d72e5bb7463b.zip gcc-d87ee7f1c9cd2ffa6302cdfd0686d72e5bb7463b.tar.gz gcc-d87ee7f1c9cd2ffa6302cdfd0686d72e5bb7463b.tar.bz2 | |
Clean up loop-closed PHIs after loop finalize
This patch propagates loop-closed PHIs them out at
loop_optimizer_finalize. For some cases, to clean up loop-closed PHIs
would save efforts of optimization passes after loopdone.
Thanks,
Jiufu Guo.
gcc/ChangeLog:
2020-10-18 Jiufu Guo <guojiufu@linux.ibm.com>
* cfgloop.h (loop_optimizer_finalize): Add flag argument.
* loop-init.c (loop_optimizer_finalize): Call clean_up_loop_closed_phi.
* tree-cfgcleanup.h (clean_up_loop_closed_phi): New declare.
* tree-ssa-loop.c (tree_ssa_loop_done): Call loop_optimizer_finalize
with flag argument.
* tree-ssa-propagate.c (clean_up_loop_closed_phi): New function.
gcc/testsuite/ChangeLog:
2020-10-18 Jiufu Guo <guojiufu@linux.ibm.com>
* gcc.dg/tree-ssa/loopclosedphi.c: New test.
Diffstat (limited to 'gcc/tree-ssa-loop.c')
| -rw-r--r-- | gcc/tree-ssa-loop.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/tree-ssa-loop.c b/gcc/tree-ssa-loop.c index 5e8365d..339a0c5 100644 --- a/gcc/tree-ssa-loop.c +++ b/gcc/tree-ssa-loop.c @@ -529,7 +529,7 @@ tree_ssa_loop_done (void) { free_numbers_of_iterations_estimates (cfun); scev_finalize (); - loop_optimizer_finalize (); + loop_optimizer_finalize (cfun, true); return 0; } |