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Diffstat (limited to 'gcc/doc/tm.texi')
| -rw-r--r-- | gcc/doc/tm.texi | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi index bbda85a43a7..e1e095758ec 100644 --- a/gcc/doc/tm.texi +++ b/gcc/doc/tm.texi @@ -3643,6 +3643,22 @@ pointer register, then you must mark it as a fixed register according to (@pxref{Elimination}). @end defmac +@defmac HARD_FRAME_POINTER_IS_FRAME_POINTER +Define this to a preprocessor constant that is nonzero if +@code{hard_frame_pointer_rtx} and @code{frame_pointer_rtx} should be +the same. The default definition is @samp{(HARD_FRAME_POINTER_REGNUM +== FRAME_POINTER_REGNUM)}; you only need to define this macro if that +definition is not suitable for use in preprocessor conditionals. +@end defmac + +@defmac HARD_FRAME_POINTER_IS_ARG_POINTER +Define this to a preprocessor constant that is nonzero if +@code{hard_frame_pointer_rtx} and @code{arg_pointer_rtx} should be the +same. The default definition is @samp{(HARD_FRAME_POINTER_REGNUM == +ARG_POINTER_REGNUM)}; you only need to define this macro if that +definition is not suitable for use in preprocessor conditionals. +@end defmac + @defmac RETURN_ADDRESS_POINTER_REGNUM The register number of the return address pointer register, which is used to access the current function's return address from the stack. On some |