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| author | Dodji Seketeli <dodji@redhat.com> | 2009-12-03 08:33:03 +0000 |
|---|---|---|
| committer | Dodji Seketeli <dodji@gcc.gnu.org> | 2009-12-03 09:33:03 +0100 |
| commit | 84894f850fd94064c2673de1d26a1390a65508dd (patch) | |
| tree | 801fa0d123db0311962b9a816fed19689206532c | |
| parent | 249ccaff220334750acbaf9351dd06b0fdcbde06 (diff) | |
| download | gcc-84894f850fd94064c2673de1d26a1390a65508dd.zip gcc-84894f850fd94064c2673de1d26a1390a65508dd.tar.gz gcc-84894f850fd94064c2673de1d26a1390a65508dd.tar.bz2 | |
re PR c++/42217 (ICE with zero-length bit-field)
Fix PR c++/42217
gcc/cp/ChangeLog
PR c++/42217
* class.c (remove_zero_width_bit_fields): The width of the bit field is
in DECL_SIZE, not in DECL_INITIAL.
gcc/testsuite/ChangeLog
PR c++/42217
* g++.dg/other/bitfield4.C: New test.
From-SVN: r154938
| -rw-r--r-- | gcc/cp/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/cp/class.c | 7 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/g++.dg/other/bitfield4.C | 10 |
4 files changed, 27 insertions, 1 deletions
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog index 6753829..f11ee70 100644 --- a/gcc/cp/ChangeLog +++ b/gcc/cp/ChangeLog @@ -1,3 +1,9 @@ +2009-12-03 Dodji Seketeli <dodji@redhat.com> + + PR c++/42217 + * class.c (remove_zero_width_bit_fields): The width of the bit field is + in DECL_SIZE, not in DECL_INITIAL. + 2009-12-03 Jakub Jelinek <jakub@redhat.com> PR c++/42256 diff --git a/gcc/cp/class.c b/gcc/cp/class.c index 1dcc238..ca75bc1 100644 --- a/gcc/cp/class.c +++ b/gcc/cp/class.c @@ -4254,7 +4254,12 @@ remove_zero_width_bit_fields (tree t) { if (TREE_CODE (*fieldsp) == FIELD_DECL && DECL_C_BIT_FIELD (*fieldsp) - && DECL_INITIAL (*fieldsp)) + /* We should not be confused by the fact that grokbitfield + temporarily sets the width of the bit field into + DECL_INITIAL (*fieldsp). + check_bitfield_decl eventually sets DECL_SIZE (*fieldsp) + to that width. */ + && integer_zerop (DECL_SIZE (*fieldsp))) *fieldsp = TREE_CHAIN (*fieldsp); else fieldsp = &TREE_CHAIN (*fieldsp); diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index aeb92ac..550c136 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2009-12-03 Dodji Seketeli <dodji@redhat.com> + + PR c++/42217 + * g++.dg/other/bitfield4.C: New test. + 2009-12-03 Jakub Jelinek <jakub@redhat.com> PR c++/42256 diff --git a/gcc/testsuite/g++.dg/other/bitfield4.C b/gcc/testsuite/g++.dg/other/bitfield4.C new file mode 100644 index 0000000..d140f82 --- /dev/null +++ b/gcc/testsuite/g++.dg/other/bitfield4.C @@ -0,0 +1,10 @@ +// Contributed by Dodji Seketeli <dodji@redhat.com> +// Origin PR c++/42217 +// { dg-do compile } + +struct A +{ + int : 0; +}; +A a = A(); + |