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Marek Polacek 6f56efa94e c++: improve -Waddress warnings with *_cast [PR105569]
This patch improves the diagnostic for -Waddress when it warns for

  if (dynamic_cast<A*>(&ref))
    // ...

where 'ref' is a reference, which cannot be null.  In particular, it
changes
warning: comparing the result of pointer addition '(((A*)ref) + ((sizetype)(*(long int*)((& ref)->B::_vptr.B + -24))))' and NULL
to
warning: the compiler can assume that the address of 'ref' will never be NULL

	PR c++/105569

gcc/cp/ChangeLog:

	* typeck.cc (warn_for_null_address): Improve the warning when
	the POINTER_PLUS_EXPR's base is of reference type.

gcc/testsuite/ChangeLog:

	* g++.dg/warn/Waddress-9.C: New test.
2022-05-26 17:11:07 -04:00
c++tools Daily bump. 2022-03-19 00:16:22 +00:00
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gcc c++: improve -Waddress warnings with *_cast [PR105569] 2022-05-26 17:11:07 -04:00
gnattools Daily bump. 2021-10-23 00:16:26 +00:00
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libssp Update copyright years. 2022-01-03 10:42:10 +01:00
libstdc++-v3 libstdc++: Add constexpr to std::counted_iterator post-increment (LWG 3643) 2022-05-26 17:14:40 +01:00
libvtv Update copyright years. 2022-01-03 10:42:10 +01:00
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.dir-locals.el dir-locals: Use https for bug references 2021-07-20 11:40:34 +01:00
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.gitignore Add cscope.out to git ignore. 2021-06-24 16:51:40 +05:30
ABOUT-NLS
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ChangeLog Daily bump. 2022-05-14 00:17:19 +00:00
ChangeLog.jit
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config-ml.in
config.guess config.sub, config.guess : Import upstream 2021-01-25. 2021-02-23 17:21:10 +08:00
config.rpath
config.sub config.sub: change mode to 755. 2021-12-21 09:10:57 +01:00
configure LoongArch Port: Regenerate configure 2022-03-29 17:43:32 +08:00
configure.ac LoongArch Port: Regenerate configure 2022-03-29 17:43:32 +08:00
COPYING
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depcomp
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libtool-ldflags
libtool.m4 Revert "Sync with binutils: GCC: Pass --plugin to AR and RANLIB" 2021-12-15 20:45:58 -08:00
lt~obsolete.m4
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MAINTAINERS MAINTAINERS: Add myself to write after approval 2022-05-13 09:30:38 -05:00
Makefile.def toplevel: Makefile.def: Make configure-sim depend on all-readline 2022-03-09 20:54:37 +01:00
Makefile.in toplevel: Makefile.def: Make configure-sim depend on all-readline 2022-03-09 20:54:37 +01:00
Makefile.tpl Revert "Sync with binutils: GCC: Pass --plugin to AR and RANLIB" 2021-12-15 20:45:58 -08:00
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