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Diffstat (limited to 'gcc/doc/extend.texi')
| -rw-r--r-- | gcc/doc/extend.texi | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi index 2a1391e..099e4dd 100644 --- a/gcc/doc/extend.texi +++ b/gcc/doc/extend.texi @@ -2221,6 +2221,14 @@ safe since the loaders there save all registers. (Lazy binding can be disabled with the linker or the loader if desired, to avoid the problem.) +@item x87regparm +@cindex @code{x87regparm} attribute +On the Intel x86 with 80387 @code{x87regparm} attribute causes the +compiler to pass up to 3 floating point arguments in 80387 registers +instead of on the stack. Functions that take a variable number of +arguments will continue to pass all of their floating point arguments +on the stack. + @item sseregparm @cindex @code{sseregparm} attribute On the Intel 386 with SSE support, the @code{sseregparm} attribute |