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| author | Jakub Jelinek <jakub@redhat.com> | 2025-01-16 09:25:16 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2025-01-16 09:27:54 +0100 |
| commit | 7f5adfd31b3af08924faec36679eaea40a98af19 (patch) | |
| tree | 54fc4cc2847cb1516fbad20a4f41888d4468aab6 /libjava/classpath | |
| parent | 9c4397cafc5ded9b008a92a55d4e5207e1c2e4e4 (diff) | |
| download | gcc-7f5adfd31b3af08924faec36679eaea40a98af19.zip gcc-7f5adfd31b3af08924faec36679eaea40a98af19.tar.gz gcc-7f5adfd31b3af08924faec36679eaea40a98af19.tar.bz2 | |
tree-ssa-propagate: Special case lhs of musttail calls in may_propagate_copy [PR118430]
This patch ensures that VRP or similar passes don't replace the uses of lhs of
[[gnu::musttail]] calls with some constant (e.g. if the call is known is known
to return a singleton value range) etc. to make it more likely that it is actually
tail callable.
2025-01-16 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/118430
* tree-ssa-propagate.cc (may_propagate_copy): Return false if dest
is lhs of an [[gnu::musttail]] call.
(substitute_and_fold_dom_walker::before_dom_children): Formatting fix.
* c-c++-common/musttail14.c: Expect lhs on the must tail call calls.
Diffstat (limited to 'libjava/classpath')
0 files changed, 0 insertions, 0 deletions