From c74a0faa9186a3cb2b930490e9b7d99ec91198e1 Mon Sep 17 00:00:00 2001 From: Steve Ellcey Date: Thu, 22 Feb 2018 16:49:28 +0000 Subject: [PATCH] extend.texi (__builtin_extend_pointer): Document builtin. 2018-02-22 Steve Ellcey * doc/extend.texi (__builtin_extend_pointer): Document builtin. From-SVN: r257906 --- gcc/ChangeLog | 4 ++++ gcc/doc/extend.texi | 10 ++++++++++ 2 files changed, 14 insertions(+) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index eb4c5c91090..2363216b73b 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2018-02-22 Steve Ellcey + + * doc/extend.texi (__builtin_extend_pointer): Document builtin. + 2018-02-22 DJ Delorie Sebastian Perta Oleg Endo diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi index b5240095ab6..1379502ebbb 100644 --- a/gcc/doc/extend.texi +++ b/gcc/doc/extend.texi @@ -11042,6 +11042,7 @@ the built-in function returns -1. @findex __builtin_alloca_with_align @findex __builtin_alloca_with_align_and_max @findex __builtin_call_with_static_chain +@findex __builtin_extend_pointer @findex __builtin_fpclassify @findex __builtin_isfinite @findex __builtin_isnormal @@ -12419,6 +12420,15 @@ Similar to @code{__builtin_bswap32}, except the argument and return types are 64 bit. @end deftypefn +@deftypefn {Built-in Function} Pmode __builtin_extend_pointer (void * x) +On targets where the user visible pointer size is smaller than the size +of an actual hardware address this function returns the extended user +pointer. Targets where this is true included ILP32 mode on x86_64 or +Aarch64. This function is mainly useful when writing inline assembly +code. +@var{addr} +@end deftypefn + @node Target Builtins @section Built-in Functions Specific to Particular Target Machines -- 2.30.2