diff options
Diffstat (limited to 'gcc/doc/rtl.texi')
| -rw-r--r-- | gcc/doc/rtl.texi | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/gcc/doc/rtl.texi b/gcc/doc/rtl.texi index 8a97a5d..e906ccf 100644 --- a/gcc/doc/rtl.texi +++ b/gcc/doc/rtl.texi @@ -438,7 +438,12 @@ declaration, this is the offset into that logical storage. If the @code{symbol_ref} @var{x} was created for a @code{VAR_DECL} or a @code{FUNCTION_DECL}, that tree is recorded here. If this value is null, then @var{x} was created by back end code generation routines, -and so there is no associated front end symbol table entry. +and there is no associated front end symbol table entry. + +@code{SYMBOL_REF_DECL} may also point to a tree of class @code{'c'}, +that is, some sort of constant. In this case, the @code{symbol_ref} +is an entry in the per-file constant pool; again, there is no associated +front end symbol table entry. @findex SYMBOL_REF_FLAGS @item SYMBOL_REF_FLAGS (@var{x}) |