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Diffstat (limited to 'gcc-4.9/gcc/doc/tm.texi')
| -rw-r--r-- | gcc-4.9/gcc/doc/tm.texi | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/doc/tm.texi b/gcc-4.9/gcc/doc/tm.texi index 28029a14c..d512ebb92 100644 --- a/gcc-4.9/gcc/doc/tm.texi +++ b/gcc-4.9/gcc/doc/tm.texi @@ -9017,6 +9017,13 @@ register in Dwarf. Otherwise, this hook should return @code{NULL_RTX}. If not defined, the default is to return @code{NULL_RTX}. @end deftypefn +@deftypefn {Target Hook} {enum machine_mode} TARGET_DWARF_FRAME_REG_MODE (int @var{regno}) +Given a register, this hook should return the mode which the +corresponding Dwarf frame register should have. This is normally +used to return a smaller mode than the raw mode to prevent call +clobbered parts of a register altering the frame register size +@end deftypefn + @deftypefn {Target Hook} void TARGET_INIT_DWARF_REG_SIZES_EXTRA (tree @var{address}) If some registers are represented in Dwarf-2 unwind information in multiple pieces, define this hook to fill in information about the |