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author | Richard Biener <rguenther@suse.de> | 2023-12-05 08:50:57 +0100 |
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committer | Richard Biener <rguenther@suse.de> | 2023-12-05 14:12:12 +0100 |
commit | 8ff02df62935429d8956361cfdb897122492523d (patch) | |
tree | 62975ad33b29b7eb69e157a79d07642c9eea12b2 /gcc/c | |
parent | e0786ca9a18c50ad08c40936b228e325193664b8 (diff) | |
download | gcc-8ff02df62935429d8956361cfdb897122492523d.zip gcc-8ff02df62935429d8956361cfdb897122492523d.tar.gz gcc-8ff02df62935429d8956361cfdb897122492523d.tar.bz2 |
tree-optimization/112856 - fix LC SSA after loop header copying
When loop header copying unloops loops we have to possibly fixup
LC SSA. I've take the opportunity to streamline the unloop_loops
API, removing the use of a ivcanon local global variable.
PR tree-optimization/109689
PR tree-optimization/112856
* cfgloopmanip.h (unloop_loops): Adjust API.
* tree-ssa-loop-ivcanon.cc (unloop_loops): Take edges_to_remove
as parameter.
(canonicalize_induction_variables): Adjust.
(tree_unroll_loops_completely): Likewise.
* tree-ssa-loop-ch.cc (ch_base::copy_headers): Rewrite into
LC SSA if we unlooped some loops and we are in LC SSA.
* gcc.dg/torture/pr109689.c: New testcase.
* gcc.dg/torture/pr112856.c: Likewise.
Diffstat (limited to 'gcc/c')
0 files changed, 0 insertions, 0 deletions