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| author | David Edelsohn <dje@gcc.gnu.org> | 2000-01-04 15:10:19 -0500 |
|---|---|---|
| committer | David Edelsohn <dje@gcc.gnu.org> | 2000-01-04 15:10:19 -0500 |
| commit | 5fad8ebf24ae2fefce8e1a28061b50ccceda57bb (patch) | |
| tree | f055e92b216e9c041f5a96b83682119a1fdc8294 | |
| parent | e1565e6588aaf9e7062ff462cb22840f4e66b8c7 (diff) | |
| download | gcc-5fad8ebf24ae2fefce8e1a28061b50ccceda57bb.zip gcc-5fad8ebf24ae2fefce8e1a28061b50ccceda57bb.tar.gz gcc-5fad8ebf24ae2fefce8e1a28061b50ccceda57bb.tar.bz2 | |
- Document SLOW_UNALIGNED_ACCESS change.
- Update copyright.
From-SVN: r31212
| -rw-r--r-- | gcc/tm.texi | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/gcc/tm.texi b/gcc/tm.texi index 4b8193d..95a252b 100644 --- a/gcc/tm.texi +++ b/gcc/tm.texi @@ -1,4 +1,4 @@ -@c Copyright (C) 1988,89,92,93,94,96,97,98,1999 Free Software Foundation, Inc. +@c Copyright (C) 1988,89,92-99,2000 Free Software Foundation, Inc. @c This is part of the GCC manual. @c For copying conditions, see the file gcc.texi. @@ -4719,10 +4719,11 @@ recognize RTL structures like this: and likewise for @code{HImode}. @findex SLOW_UNALIGNED_ACCESS -@item SLOW_UNALIGNED_ACCESS -Define this macro to be the value 1 if unaligned accesses have a cost -many times greater than aligned accesses, for example if they are -emulated in a trap handler. +@item SLOW_UNALIGNED_ACCESS (@var{mode}, @var{alignment}) +Define this macro to be the value 1 if memory accesses described by the +@var{mode} and @var{alignment} parameters have a cost many times greater +than aligned accesses, for example if they are emulated in a trap +handler. When this macro is non-zero, the compiler will act as if @code{STRICT_ALIGNMENT} were non-zero when generating code for block |