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| author | Jakub Jelinek <jakub@redhat.com> | 2008-04-03 09:43:46 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2008-04-03 09:43:46 +0200 |
| commit | 60c4d1358ad5e944caeb1a335da0b2703d909670 (patch) | |
| tree | 05c057f129b8e304ff878651261f0fb4016c5d77 | |
| parent | 6cba282a2ceb2086f207124388bc2c38088d759b (diff) | |
| download | gcc-60c4d1358ad5e944caeb1a335da0b2703d909670.zip gcc-60c4d1358ad5e944caeb1a335da0b2703d909670.tar.gz gcc-60c4d1358ad5e944caeb1a335da0b2703d909670.tar.bz2 | |
re PR c++/35741 (ICE with offsetof and references)
PR c++/35741
* semantics.c (finish_offsetof): Undo effect of convert_from_reference
before calling fold_offsetof.
* g++.dg/other/offsetof5.C: New test.
From-SVN: r133863
| -rw-r--r-- | gcc/cp/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/cp/semantics.c | 2 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/g++.dg/other/offsetof5.C | 22 |
4 files changed, 35 insertions, 0 deletions
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog index c7600ec..713b62e 100644 --- a/gcc/cp/ChangeLog +++ b/gcc/cp/ChangeLog @@ -1,3 +1,9 @@ +2008-04-03 Jakub Jelinek <jakub@redhat.com> + + PR c++/35741 + * semantics.c (finish_offsetof): Undo effect of convert_from_reference + before calling fold_offsetof. + 2008-04-03 Tom Tromey <tromey@redhat.com> * Make-lang.in (c++_OBJS): New variable. diff --git a/gcc/cp/semantics.c b/gcc/cp/semantics.c index 8966bf5..95ebde6 100644 --- a/gcc/cp/semantics.c +++ b/gcc/cp/semantics.c @@ -3039,6 +3039,8 @@ finish_offsetof (tree expr) error ("cannot apply %<offsetof%> to member function %qD", expr); return error_mark_node; } + if (TREE_CODE (expr) == INDIRECT_REF && REFERENCE_REF_P (expr)) + expr = TREE_OPERAND (expr, 0); return fold_offsetof (expr, NULL_TREE); } diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index f40f99f..e291072 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2008-04-03 Jakub Jelinek <jakub@redhat.com> + + PR c++/35741 + * g++.dg/other/offsetof5.C: New test. + 2008-04-03 Paolo Bonzini <bonzini@gnu.org> PR rtl-optimization/35281 diff --git a/gcc/testsuite/g++.dg/other/offsetof5.C b/gcc/testsuite/g++.dg/other/offsetof5.C new file mode 100644 index 0000000..97dd5e9 --- /dev/null +++ b/gcc/testsuite/g++.dg/other/offsetof5.C @@ -0,0 +1,22 @@ +// PR c++/35741 +// { dg-do compile } + +#include <stddef.h> + +struct A +{ + char c; + int &i; +}; + +int j = offsetof (A, i); // { dg-warning "invalid access|offsetof" } + +template <typename T> +struct S +{ + T h; + T &i; + static const int j = offsetof (S, i); // { dg-warning "invalid access|offsetof" } +}; + +int k = S<int>::j; // { dg-warning "instantiated from here" } |