[Bug middle-end/34386] New: -Wstrict-aliasing=3 ineffective (tree-ssa-alias-warnings.c)
rguenth at gcc dot gnu dot org
gcc-bugzilla@gcc.gnu.org
Sat Dec 8 00:21:00 GMT 2007
The new alias violation warning is ineffective for PR34385 for several reasons:
- we TBAA prune the points-to sets, this deletes the information the warning
is depending on
- the warning is disabled for structure types
- in C++, temporaries are 'artificial' and such no warnings are generated for
accesses to them
--
Summary: -Wstrict-aliasing=3 ineffective (tree-ssa-alias-
warnings.c)
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Keywords: diagnostic
Severity: enhancement
Priority: P3
Component: middle-end
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: rguenth at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34386
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