don't access cfun in dump_function_to_file
Richard Biener
richard.guenther@gmail.com
Wed Jul 28 12:33:50 GMT 2021
On Wed, Jul 28, 2021 at 10:12 AM Alexandre Oliva <oliva@adacore.com> wrote:
>
>
> dump_function_to_file takes the function to dump as a parameter, and
> parts of it use the local fun variable where cfun would be used
> elsewhere. Others use cfun, presumably in error. Fixed to use fun
> uniformly. Added a few more tests for non-NULL fun before
> dereferencing it.
>
> Regstrapped on x86_64-linux-gnu. Ok to install?
OK.
Richard.
>
> for gcc/ChangeLog
>
> * tree-cfg.c (dump_function_to_file): Use fun, not cfun.
> ---
> gcc/tree-cfg.c | 10 +++++-----
> 1 file changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/gcc/tree-cfg.c b/gcc/tree-cfg.c
> index 30b1b56293e3b..38269a27b7978 100644
> --- a/gcc/tree-cfg.c
> +++ b/gcc/tree-cfg.c
> @@ -8074,9 +8074,9 @@ dump_function_to_file (tree fndecl, FILE *file, dump_flags_t flags)
> : (fun->curr_properties & PROP_cfg) ? "cfg"
> : "");
>
> - if (cfun->cfg)
> + if (fun && fun->cfg)
> {
> - basic_block bb = ENTRY_BLOCK_PTR_FOR_FN (cfun);
> + basic_block bb = ENTRY_BLOCK_PTR_FOR_FN (fun);
> if (bb->count.initialized_p ())
> fprintf (file, ",%s(%" PRIu64 ")",
> profile_quality_as_string (bb->count.quality ()),
> @@ -8162,8 +8162,8 @@ dump_function_to_file (tree fndecl, FILE *file, dump_flags_t flags)
>
> tree name;
>
> - if (gimple_in_ssa_p (cfun))
> - FOR_EACH_SSA_NAME (ix, name, cfun)
> + if (gimple_in_ssa_p (fun))
> + FOR_EACH_SSA_NAME (ix, name, fun)
> {
> if (!SSA_NAME_VAR (name)
> /* SSA name with decls without a name still get
> @@ -8199,7 +8199,7 @@ dump_function_to_file (tree fndecl, FILE *file, dump_flags_t flags)
>
> fprintf (file, "}\n");
> }
> - else if (fun->curr_properties & PROP_gimple_any)
> + else if (fun && (fun->curr_properties & PROP_gimple_any))
> {
> /* The function is now in GIMPLE form but the CFG has not been
> built yet. Emit the single sequence of GIMPLE statements
>
> --
> Alexandre Oliva, happy hacker https://FSFLA.org/blogs/lxo/
> Free Software Activist GNU Toolchain Engineer
> Disinformation flourishes because many people care deeply about injustice
> but very few check the facts. Ask me about <https://stallmansupport.org>
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