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| author | Richard Biener <rguenther@suse.de> | 2022-08-23 13:58:31 +0200 |
|---|---|---|
| committer | Richard Biener <rguenther@suse.de> | 2022-08-23 15:20:27 +0200 |
| commit | baa3ffb19c54fa334ac2884f6acb5d31aa79ac32 (patch) | |
| tree | e80aaddb11403cd82cba20563f4ce099557b5278 /gcc/rust/backend/rust-compile-struct-field-expr.cc | |
| parent | b25c5d6133d356a34aee72a24fd4cdec5637cc17 (diff) | |
| download | gcc-baa3ffb19c54fa334ac2884f6acb5d31aa79ac32.zip gcc-baa3ffb19c54fa334ac2884f6acb5d31aa79ac32.tar.gz gcc-baa3ffb19c54fa334ac2884f6acb5d31aa79ac32.tar.bz2 | |
tree-optimization/106722 - uninit analysis with long def -> use path
The following applies similar measures as r13-2133-ge66cf626c72d58
to the computation of the use predicate when the path from PHI def
to use is too long and we run into compute_control_dep_chain limits.
It also moves the preprocessor define limits internal.
This resolves the reduced testcase but not the original one.
PR tree-optimization/106722
* gimple-predicate-analysis.h (MAX_NUM_CHAINS, MAX_CHAIN_LEN,
MAX_POSTDOM_CHECK, MAX_SWITCH_CASES): Move ...
* gimple-predicate-analysis.cc: ... here and document.
(simple_control_dep_chain): New function, factored from
predicate::use_cannot_happen.
(predicate::use_cannot_happen): Adjust.
(predicate::predicate): Use simple_control_dep_chain as fallback.
* g++.dg/uninit-pr106722-1.C: New testcase.
Diffstat (limited to 'gcc/rust/backend/rust-compile-struct-field-expr.cc')
0 files changed, 0 insertions, 0 deletions