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| author | aoliva <aoliva@138bc75d-0d04-0410-961f-82ee72b054a4> | 2001-05-12 10:41:21 +0000 |
|---|---|---|
| committer | aoliva <aoliva@138bc75d-0d04-0410-961f-82ee72b054a4> | 2001-05-12 10:41:21 +0000 |
| commit | 3aba38cc0710497d00193289e97efac937bb545a (patch) | |
| tree | 85d31d3c38b3d8227bcdae0fdb074c5fbcdf205a /gcc/defaults.h | |
| parent | d75b8a6881a6a4cf009cf42d15035e95625272ff (diff) | |
| download | gcc-3aba38cc0710497d00193289e97efac937bb545a.tar.gz | |
* defaults.h (TARGET_PTRMEMFUNC_VBIT_LOCATION): Define.
* tm.texi (TARGET_PRTMEMFUNC_VBIT_LOCATION): Document.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@41989 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/defaults.h')
| -rw-r--r-- | gcc/defaults.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/gcc/defaults.h b/gcc/defaults.h index 9ec2af1a5ab..45fb088785f 100644 --- a/gcc/defaults.h +++ b/gcc/defaults.h @@ -325,5 +325,16 @@ do { \ #define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) DW_EH_PE_absptr #endif +/* By default, the C++ compiler will use the lowest bit of the pointer + to function to indicate a pointer-to-member-function points to a + virtual member function. However, if FUNCTION_BOUNDARY indicates + function addresses aren't always even, the lowest bit of the delta + field will be used. */ +#ifndef TARGET_PTRMEMFUNC_VBIT_LOCATION +#define TARGET_PTRMEMFUNC_VBIT_LOCATION \ + (FUNCTION_BOUNDARY >= 2 * BITS_PER_UNIT \ + ? ptrmemfunc_vbit_in_pfn : ptrmemfunc_vbit_in_delta) +#endif + #endif /* GCC_DEFAULTS_H */ |