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| author | Danny Smith <dannysmith@users.sourceforge.net> | 2004-04-08 22:31:23 +0000 |
|---|---|---|
| committer | Danny Smith <dannysmith@gcc.gnu.org> | 2004-04-08 22:31:23 +0000 |
| commit | 4a77e08cfcde08398ad78b29fce29a531190ed52 (patch) | |
| tree | ce3b9965aa669725a68d26a5e2a93e944f64f5bf /gcc/defaults.h | |
| parent | cc81dde821dd144faa36924fe5c5febd54c64649 (diff) | |
| download | gcc-4a77e08cfcde08398ad78b29fce29a531190ed52.zip gcc-4a77e08cfcde08398ad78b29fce29a531190ed52.tar.gz gcc-4a77e08cfcde08398ad78b29fce29a531190ed52.tar.bz2 | |
re PR c++/14808 ([win32] Undefined results with virtual base classes)
PR c++/14808
* defaults.h (TARGET_USE_LOCAL_THUNK_ALIAS_P): New macro. Default
to 1 if ASM_OUTPUT_DEF is defined.
* doc/tm.texi (TARGET_USE_LOCAL_THUNK_ALIAS_P): Document.
* config/i386/cygming.h (TARGET_USE_LOCAL_THUNK_ALIAS_P): Define.
Set to non-zero iff not a one_only decl.
* cp/method.c (use_thunk): Test TARGET_USE_LOCAL_THUNK_ALIAS_P rather
than ASM_OUTPUT_DEF.
From-SVN: r80525
Diffstat (limited to 'gcc/defaults.h')
| -rw-r--r-- | gcc/defaults.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/defaults.h b/gcc/defaults.h index e4a6fae..9f261d0 100644 --- a/gcc/defaults.h +++ b/gcc/defaults.h @@ -484,6 +484,16 @@ do { fputs (integer_asm_op (POINTER_SIZE / BITS_PER_UNIT, TRUE), FILE); \ #define TARGET_VTABLE_DATA_ENTRY_DISTANCE 1 #endif +/* Decide whether it is safe to use a local alias for a virtual function + when constructing thunks. */ +#ifndef TARGET_USE_LOCAL_THUNK_ALIAS_P +#ifdef ASM_OUTPUT_DEF +#define TARGET_USE_LOCAL_THUNK_ALIAS_P(DECL) 1 +#else +#define TARGET_USE_LOCAL_THUNK_ALIAS_P(DECL) 0 +#endif +#endif + /* Select a format to encode pointers in exception handling data. We prefer those that result in fewer dynamic relocations. Assume no special support here and encode direct references. */ |