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| author | Richard Biener <rguenther@suse.de> | 2021-09-30 15:05:53 +0200 |
|---|---|---|
| committer | Richard Biener <rguenther@suse.de> | 2021-10-01 08:26:26 +0200 |
| commit | 3a7f20ed26416b56df6f3c8240f3c65a5715b17d (patch) | |
| tree | c714dba36ab60fe15d7b6c4dc04fd9df7bb2cfe3 /gcc/tree-inline.c | |
| parent | ea0b5b656a0e90bc9bb3ab0920796b24a9387d76 (diff) | |
| download | gcc-3a7f20ed26416b56df6f3c8240f3c65a5715b17d.zip gcc-3a7f20ed26416b56df6f3c8240f3c65a5715b17d.tar.gz gcc-3a7f20ed26416b56df6f3c8240f3c65a5715b17d.tar.bz2 | |
middle-end/102518 - avoid invalid GIMPLE during inlining
When inlining we have to avoid mapping a non-lvalue parameter
value into a context that prevents the parameter to be a register.
Formerly the register were TREE_ADDRESSABLE but now it can be
just DECL_NOT_GIMPLE_REG_P.
2021-09-30 Richard Biener <rguenther@suse.de>
PR middle-end/102518
* tree-inline.c (setup_one_parameter): Avoid substituting
an invariant into contexts where a GIMPLE register is not valid.
* gcc.dg/torture/pr102518.c: New testcase.
Diffstat (limited to 'gcc/tree-inline.c')
| -rw-r--r-- | gcc/tree-inline.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/gcc/tree-inline.c b/gcc/tree-inline.c index 5e50e80..e292a14 100644 --- a/gcc/tree-inline.c +++ b/gcc/tree-inline.c @@ -3490,7 +3490,11 @@ setup_one_parameter (copy_body_data *id, tree p, tree value, tree fn, /* We may produce non-gimple trees by adding NOPs or introduce invalid sharing when the value is not constant or DECL. And we need to make sure that it cannot be modified from another path in the callee. */ - if ((is_gimple_min_invariant (value) + if (((is_gimple_min_invariant (value) + /* When the parameter is used in a context that forces it to + not be a GIMPLE register avoid substituting something that + is not a decl there. */ + && ! DECL_NOT_GIMPLE_REG_P (p)) || (DECL_P (value) && TREE_READONLY (value)) || (auto_var_in_fn_p (value, id->dst_fn) && !TREE_ADDRESSABLE (value))) |