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-rw-r--r--gcc/tm.texi8
1 files changed, 8 insertions, 0 deletions
diff --git a/gcc/tm.texi b/gcc/tm.texi
index bf82bd1..39e3df5 100644
--- a/gcc/tm.texi
+++ b/gcc/tm.texi
@@ -1489,6 +1489,14 @@ corresponding to the register number @var{in} as seen by the called
function. Return @var{in} if register number @var{in} is not an inbound
register.
+@findex LOCAL_REGNO
+@item LOCAL_REGNO (@var{regno})
+Define this macro if the target machine has register windows. This C
+expression returns true if the register is call-saved but is in the
+register window. Unlike most call-saved registers, such registers
+need not be explicitly restored on function exit or during non-local
+gotos.
+
@ignore
@findex PC_REGNUM
@item PC_REGNUM