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| author | Jakub Jelinek <jakub@redhat.com> | 2021-01-27 10:08:46 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2021-01-27 10:08:46 +0100 |
| commit | efc9ccbfd0ca4da6bf0aba913df6f77f56044dc2 (patch) | |
| tree | c146b34a47d8ca6cb39ee98c939acb426514a8cd /gcc/fortran/trans-expr.c | |
| parent | e62bb7f083470ccdadbd83ef885c6fe1e5cb9e67 (diff) | |
| download | gcc-efc9ccbfd0ca4da6bf0aba913df6f77f56044dc2.zip gcc-efc9ccbfd0ca4da6bf0aba913df6f77f56044dc2.tar.gz gcc-efc9ccbfd0ca4da6bf0aba913df6f77f56044dc2.tar.bz2 | |
varpool: Restore GENERIC TREE_READONLY automatic var optimization [PR7260]
In 4.8 and earlier we used to fold the following to 0 during GENERIC folding,
but we don't do that anymore because ctor_for_folding etc. has been turned into a
GIMPLE centric API, but as the testcase shows, it is invoked even during
GENERIC folding and there the automatic vars still should have meaningful
initializers. I've verified that the C++ FE drops TREE_READONLY on
automatic vars with const qualified types if they require non-constant
(runtime) initialization.
2021-01-27 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/97260
* varpool.c: Include tree-pass.h.
(ctor_for_folding): In GENERIC return DECL_INITIAL for TREE_READONLY
non-TREE_SIDE_EFFECTS automatic variables.
* gcc.dg/tree-ssa/pr97260.c: New test.
Diffstat (limited to 'gcc/fortran/trans-expr.c')
0 files changed, 0 insertions, 0 deletions