diff options
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/doc/cppopts.texi | 4 | ||||
| -rw-r--r-- | gcc/doc/invoke.texi | 6 |
3 files changed, 15 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 89cfc69240a..0267508f20d 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2007-07-03 Eric Christopher <echristo@apple.com> + + * doc/cppopts.texi: Add conflicting option note to -dM. + * doc/invoke.texi: Add note about possible conflicts with + -E for -dCHARS and note that -dM will not produce + any results if there is no machine dependent reorg. + 2007-07-03 Geoffrey Keating <geoffk@apple.com> * tree.h (DECL_ALIGN): Back out previous change. diff --git a/gcc/doc/cppopts.texi b/gcc/doc/cppopts.texi index 17235bdae58..73db8323e61 100644 --- a/gcc/doc/cppopts.texi +++ b/gcc/doc/cppopts.texi @@ -641,6 +641,10 @@ touch foo.h; cpp -dM foo.h @noindent will show all the predefined macros. +If you use @option{-dM} without the @option{-E} option, @option{-dM} is +interpreted as a synonym for @option{-fdump-rtl-mach}. +@xref{Debugging Options, , ,gcc}. + @item D @opindex dD Like @samp{M} except in two respects: it does @emph{not} include the diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 2b5fff22014..57dbb025d08 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -4270,7 +4270,9 @@ Says to make debugging dumps during compilation at times specified by compiler. The file names for most of the dumps are made by appending a pass number and a word to the @var{dumpname}. @var{dumpname} is generated from the name of the output file, if explicitly specified and it is not -an executable, otherwise it is the basename of the source file. +an executable, otherwise it is the basename of the source file. These +switches may have different effects when @option{-E} is used for +preprocessing. Most debug dumps can be enabled either passing a letter to the @option{-d} option, or with a long @option{-fdump-rtl} switch; here are the possible @@ -4407,7 +4409,7 @@ Dump after modulo scheduling, to @file{@var{file}.136r.sms}. @opindex dM @opindex fdump-rtl-mach Dump after performing the machine dependent reorganization pass, to -@file{@var{file}.155r.mach}. +@file{@var{file}.155r.mach} if that pass exists. @item -dn @itemx -fdump-rtl-rnreg |