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| author | Marc Glisse <marc.glisse@inria.fr> | 2013-10-09 15:03:13 +0200 |
|---|---|---|
| committer | Marc Glisse <glisse@gcc.gnu.org> | 2013-10-09 13:03:13 +0000 |
| commit | 826cacfe24c4643799d85f07b25d15a0d3b76bc0 (patch) | |
| tree | ca712605143da33b695da4c91076aa641b7f23d3 /gcc/cfgloop.c | |
| parent | 378f8976f26a17a53c5c306f7277971e8e7a6aa7 (diff) | |
| download | gcc-826cacfe24c4643799d85f07b25d15a0d3b76bc0.zip gcc-826cacfe24c4643799d85f07b25d15a0d3b76bc0.tar.gz gcc-826cacfe24c4643799d85f07b25d15a0d3b76bc0.tar.bz2 | |
re PR c/20318 (RFE: add attribute to specify that a function never returns NULL)
2013-10-09 Marc Glisse <marc.glisse@inria.fr>
PR tree-optimization/20318
gcc/c-family/
* c-common.c (handle_returns_nonnull_attribute): New function.
(c_common_attribute_table): Add returns_nonnull.
gcc/
* doc/extend.texi (returns_nonnull): New function attribute.
* fold-const.c (tree_expr_nonzero_warnv_p): Look for returns_nonnull
attribute.
* tree-vrp.c (gimple_stmt_nonzero_warnv_p): Likewise.
(stmt_interesting_for_vrp): Accept all GIMPLE_CALL.
gcc/testsuite/
* c-c++-common/pr20318.c: New file.
* gcc.dg/tree-ssa/pr20318.c: New file.
From-SVN: r203316
Diffstat (limited to 'gcc/cfgloop.c')
0 files changed, 0 insertions, 0 deletions