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| author | Richard Biener <rguenther@suse.de> | 2022-12-05 10:13:13 +0100 |
|---|---|---|
| committer | Richard Biener <rguenther@suse.de> | 2022-12-05 14:55:44 +0100 |
| commit | d492d50f644811327c5976e2c918ab6d906ed40c (patch) | |
| tree | 75d52df242e70b54750ff859c264132b63ca975e /gcc/c | |
| parent | 109148dd16e4bcd50faee19c49082de69d0ba26e (diff) | |
| download | gcc-d492d50f644811327c5976e2c918ab6d906ed40c.zip gcc-d492d50f644811327c5976e2c918ab6d906ed40c.tar.gz gcc-d492d50f644811327c5976e2c918ab6d906ed40c.tar.bz2 | |
tree-optimization/106868 - bogus -Wdangling-pointer diagnostic
The testcase shows we mishandle the case where there's a pass-through
of a pointer through a function like memcpy. The following adjusts
handling of this copy case to require a taken address and adjust
the PHI case similarly.
PR tree-optimization/106868
* gimple-ssa-warn-access.cc (pass_waccess::gimple_call_return_arg_ref):
Inline into single user ...
(pass_waccess::check_dangling_uses): ... here and adjust the
call and the PHI case to require that ref.aref is the address
of the decl.
* gcc.dg/Wdangling-pointer-pr106868.c: New testcase.
Diffstat (limited to 'gcc/c')
0 files changed, 0 insertions, 0 deletions