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| author | Richard Henderson <rth@redhat.com> | 2004-06-18 22:39:14 -0700 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2004-06-18 22:39:14 -0700 |
| commit | ff98621c682005e2a224f62c1aa5028353a5357e (patch) | |
| tree | 5791e7f8af3ac3bb999dd5a105aafb41d29af09e /gcc/gimplify.c | |
| parent | 048d99365055be4021508378e90a90987df38283 (diff) | |
| download | gcc-ff98621c682005e2a224f62c1aa5028353a5357e.zip gcc-ff98621c682005e2a224f62c1aa5028353a5357e.tar.gz gcc-ff98621c682005e2a224f62c1aa5028353a5357e.tar.bz2 | |
re PR c++/16036 (Spurious "may be used uninitialized in this function" warning)
PR c++/16036
* gimple-low.c (lower_function_body): Generate return statement for
fall off the end of the function here ...
* tree-cfg.c (make_edges): ... instead of here.
* gimplify.c (gimplify_return_expr): Mark return temp TREE_NO_WARNING.
From-SVN: r83382
Diffstat (limited to 'gcc/gimplify.c')
| -rw-r--r-- | gcc/gimplify.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/gcc/gimplify.c b/gcc/gimplify.c index 45d5e6e..2e7d30e 100644 --- a/gcc/gimplify.c +++ b/gcc/gimplify.c @@ -946,6 +946,13 @@ gimplify_return_expr (tree stmt, tree *pre_p) else { result = create_tmp_var (TREE_TYPE (result_decl), NULL); + + /* ??? With complex control flow (usually involving abnormal edges), + we can wind up warning about an uninitialized value for this. Due + to how this variable is constructed and initialized, this is never + true. Give up and never warn. */ + TREE_NO_WARNING (result) = 1; + gimplify_ctxp->return_temp = result; } |