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| author | Jason Merrill <jason@yorick.cygnus.com> | 1999-12-15 09:18:21 +0000 |
|---|---|---|
| committer | Jason Merrill <jason@gcc.gnu.org> | 1999-12-15 04:18:21 -0500 |
| commit | 04a2ecf7808fe3c8e79141f7dca30eaacc085a8e (patch) | |
| tree | 0b7e82cf37dd9e72e5c39b65341795f41a0d29df /gcc/cp/cp-tree.def | |
| parent | 03c3ba3937cfed20613cde8a4b3934403dd96581 (diff) | |
| download | gcc-04a2ecf7808fe3c8e79141f7dca30eaacc085a8e.zip gcc-04a2ecf7808fe3c8e79141f7dca30eaacc085a8e.tar.gz gcc-04a2ecf7808fe3c8e79141f7dca30eaacc085a8e.tar.bz2 | |
cp-tree.def (TEMPLATE_PARM_INDEX): Calculate size using sizeof (struct tree_common).
* cp-tree.def (TEMPLATE_PARM_INDEX): Calculate size using
sizeof (struct tree_common).
From-SVN: r30949
Diffstat (limited to 'gcc/cp/cp-tree.def')
| -rw-r--r-- | gcc/cp/cp-tree.def | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/gcc/cp/cp-tree.def b/gcc/cp/cp-tree.def index 71c1d8d..70a41b5 100644 --- a/gcc/cp/cp-tree.def +++ b/gcc/cp/cp-tree.def @@ -1,7 +1,7 @@ /* This file contains the definitions and documentation for the additional tree codes used in the GNU C++ compiler (see tree.def for the standard codes). - Copyright (C) 1987, 1988, 1990, 1993, 1997, 1998 Free Software Foundation, Inc. + Copyright (C) 1987,88,90,93,97-8,1999 Free Software Foundation, Inc. Hacked by Michael Tiemann (tiemann@cygnus.com) This file is part of GNU CC. @@ -125,12 +125,15 @@ DEFTREECODE (TEMPLATE_DECL, "template_decl", 'd', 0) the types of things; the ORIG_LEVEL is the level when we are worrying about instantiating things. */ DEFTREECODE (TEMPLATE_PARM_INDEX, "template_parm_index", 'x', - /* The addition of (sizeof(char*) - 1) in the next - expression is to ensure against the case where - sizeof(char*) does not evenly divide - sizeof(HOST_WIDE_INT). */ - 1 + ((3 * sizeof (HOST_WIDE_INT) + sizeof(char*) - 1) - / sizeof (char*))) + /* The addition of (sizeof(tree) - 1) in the next expression + is to handle the case when padding pushes us past an even + multiple of sizeof(tree). */ + /* We used to try to calculate this using + 1+3*sizeof(HOST_WIDE_INT), but that fails if alignment + makes it bigger. */ + ((sizeof (template_parm_index) - sizeof (struct tree_common)) + + sizeof (tree) - 1) + / sizeof (tree)) /* Index into a template parameter list. This parameter must be a type. The TYPE_FIELDS value will be a TEMPLATE_PARM_INDEX. */ |