[Bug lto/44894] New: bogus warning: Use of type ‘struct nsNodeInfoManager’ with two mismatching declarations at field ‘mDocument’ [enabled by default]

[hubicka at gcc dot gnu dot org]

jh@evans:/abuild/jh/mozilla-central/build9/content/base/src>
/abuild/jh/trunk-install/bin/g++ -flto -r -nostdlib tc/*.ii
In file included from ../../../../content/base/src/nsContentUtils.cpp:45:0:
../../../dist/include/jscntxt.h: In function ‘JSContext*
js_ContextFromLinkField(JSCList*)Â’:
../../../dist/include/jscntxt.h:2704:75: warning: invalid access to non-static
data member ‘JSContext::link’  of NULL object [-Winvalid-offsetof]
../../../dist/include/jscntxt.h:2704:75: warning: (perhaps the ‘offsetof’ macro
was used incorrectly) [-Winvalid-offsetof]
In file included from ../../../dist/include/nsCSSRuleProcessor.h:52:0,
                 from ../../../../content/base/src/nsGenericElement.cpp:139:
../../../../content/base/src/../../../layout/style/nsCSSRules.h: In member
function ‘nsCSSFontFaceRule* nsCSSFontFaceStyleDecl::ContainingRule()’:
../../../../content/base/src/../../../layout/style/nsCSSRules.h:292:77:
warning: invalid access to non-static data member ‘nsCSSFontFaceRule::mDecl’ 
of NULL object [-
Winvalid-offsetof]
../../../../content/base/src/../../../layout/style/nsCSSRules.h:292:77:
warning: (perhaps the ‘offsetof’ macro was used incorrectly)
[-Winvalid-offsetof]
../../../../content/base/src/../../../layout/style/nsCSSRules.h: In member
function ‘const nsCSSFontFaceRule* nsCSSFontFaceStyleDecl::ContainingRule()
constÂ’:
../../../../content/base/src/../../../layout/style/nsCSSRules.h:299:83:
warning: invalid access to non-static data member ‘nsCSSFontFaceRule::mDecl’ 
of NULL object [-
Winvalid-offsetof]
../../../../content/base/src/../../../layout/style/nsCSSRules.h:299:83:
warning: (perhaps the ‘offsetof’ macro was used incorrectly)
[-Winvalid-offsetof]
In member function ‘Unlink’:
../../../../content/base/src/nsGenericElement.cpp:5581:1: warning: Use of type
‘struct nsNodeInfoManager’ with two mismatching declarations at field
‘mDocument’ [enabl
ed by default]
../../../dist/include/nsNodeInfoManager.h:71:232: note: original type declared
here
../../../dist/include/nsNodeInfoManager.h:157:16: note: field in mismatching
type declared here
In member function ‘SetAttrAndNotify’:
../../../../content/base/src/nsGenericElement.cpp:5581:1: warning: Use of type
‘struct nsNodeInfoManager’ with two mismatching declarations at field
‘mDocument’ [enabl
ed by default]
../../../dist/include/nsNodeInfoManager.h:71:232: note: original type declared
here
../../../dist/include/nsNodeInfoManager.h:157:16: note: field in mismatching
type declared here
../../../../content/base/src/nsGenericElement.cpp:5581:1: warning: Use of type
‘struct nsNodeInfoManager’ with two mismatching declarations at field
‘mDocument’ [enabl
ed by default]
../../../dist/include/nsNodeInfoManager.h:71:232: note: original type declared
here
../../../dist/include/nsNodeInfoManager.h:157:16: note: field in mismatching
type declared here
../../../../content/base/src/nsGenericElement.cpp:5581:1: warning: Use of type
‘struct nsNodeInfoManager’ with two mismatching declarations at field
‘mDocument’ [enabl
ed by default]
../../../dist/include/nsNodeInfoManager.h:71:232: note: original type declared
here
../../../dist/include/nsNodeInfoManager.h:157:16: note: field in mismatching
type declared here
../../../../content/base/src/nsGenericElement.cpp:5581:1: warning: Use of type
‘struct nsNodeInfoManager’ with two mismatching declarations at field
‘mDocument’ [enabl
ed by default]
../../../dist/include/nsNodeInfoManager.h:71:232: note: original type declared
here
../../../dist/include/nsNodeInfoManager.h:157:16: note: field in mismatching
type declared here
../../../../content/base/src/nsGenericElement.cpp:5581:1: warning: Use of type
‘struct nsNodeInfoManager’ with two mismatching declarations at field
‘mDocument’ [enabl
ed by default]
../../../dist/include/nsNodeInfoManager.h:71:232: note: original type declared
here
../../../dist/include/nsNodeInfoManager.h:157:16: note: field in mismatching
type declared here
../../../../content/base/src/nsGenericElement.cpp:5581:1: warning: Use of type
‘struct nsNodeInfoManager’ with two mismatching declarations at field
‘mDocument’ [enabl
ed by default]
../../../dist/include/nsNodeInfoManager.h:71:232: note: original type declared
here
../../../dist/include/nsNodeInfoManager.h:157:16: note: field in mismatching
type declared here
In member function ‘UnsetAttr’:
....


-- 
           Summary: bogus warning: Use of type ‘struct nsNodeInfoManager’
                    with two mismatching declarations at field ‘mDocument’
                    [enabled by default]
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: lto
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: hubicka at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44894